CN111012663B - Liquid medicine transfer adapter - Google Patents
Liquid medicine transfer adapter Download PDFInfo
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- CN111012663B CN111012663B CN201911332975.3A CN201911332975A CN111012663B CN 111012663 B CN111012663 B CN 111012663B CN 201911332975 A CN201911332975 A CN 201911332975A CN 111012663 B CN111012663 B CN 111012663B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2006—Piercing means
- A61J1/201—Piercing means having one piercing end
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2068—Venting means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/22—Arrangements for transferring or mixing fluids, e.g. from vial to syringe with means for metering the amount of fluid
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- Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The application provides a liquid medicine shifts adapter belongs to the medical equipment field. The liquid medicine transfer adapter comprises a shell, a puncture structure and a dosage adjusting mechanism. The shell is used for being in butt joint with the solution bottle, is internally provided with an air passage channel communicated with the outside and is provided with an air passage sealing piece for selectively unsealing the air passage channel. The puncture structure is inserted into the bottom of the solution bottle and comprises an air channel puncture needle and a liquid channel puncture needle; the other end of the gas path puncture needle is fixedly connected with the shell and is provided with an external air vent communicated with the gas path channel; the insertion end of the liquid path puncture needle is provided with an internal communicating liquid port, the other end of the liquid path puncture needle is provided with an external communicating liquid port and is sealed through a needleless connector, and the liquid path puncture needle is parallel to the gas path puncture needle and is in slidable sealing connection with the gas path puncture needle along the axial direction. The dosage adjusting mechanism is used for driving the liquid path puncture needle to slide relative to the air path puncture needle. Can effectively improve the problem of unbalanced internal and external air pressure during liquid extraction, can realize dosage adjustment, and is favorable for conveniently and accurately extracting liquid medicine.
Description
Technical Field
The application relates to the field of medical equipment, in particular to a liquid medicine transfer adapter.
Background
In the prior art, in the process of preparing the liquid medicine, a solvent such as normal saline or radioactive solution needs to be injected into a solution bottle such as a penicillin bottle, the solution is dissolved by shaking, and then the liquid medicine is pumped into an injector by the injector. When the liquid medicine in the penicillin bottle is extracted, the penicillin bottle is gradually in a negative pressure state, so that the liquid medicine is difficult to absorb; in addition, in the injection dilution/dissolution stage, due to the internal positive pressure, liquid may be ejected at the moment when the syringe is pulled out, causing a risk of contact with the liquid medicine. Because quantitative transfer is usually required in liquid medicine transfer, a matching adjusting device is usually arranged on a syringe at present to realize single-time dosage adjustment, and the operation difficulty is further increased.
Disclosure of Invention
An object of the application is to provide a liquid medicine shifts adapter, the unbalanced problem of inside and outside atmospheric pressure when can effectively improve the drawing liquid can realize that the dosage is adjusted during the drawing liquid, is favorable to conveniently, accurately drawing the liquid medicine.
The embodiment of the application is realized as follows:
the embodiment of the present application provides a liquid medicine shifts adapter, includes: a housing, a piercing structure, and a dose adjustment mechanism;
the shell is used for being butted with the solution bottle, an air passage channel communicated with the outside is arranged in the shell, and the shell is provided with an air passage sealing piece for selectively opening or closing the air passage channel;
the puncture structure is used for being inserted into the bottom of the solution bottle and comprises a gas path puncture needle and a liquid path puncture needle; the insertion end of the gas path puncture needle is provided with an internal air vent, and the other end of the gas path puncture needle is fixedly connected with the shell and is provided with an external air vent communicated with the gas path channel; the insertion end of the liquid path puncture needle is provided with an internal communicating liquid port, the other end of the liquid path puncture needle is provided with an external communicating liquid port and is sealed through a needleless connector, and the liquid path puncture needle is parallel to the gas path puncture needle and is in slidable sealing connection with the gas path puncture needle along the axial direction;
the dosage adjusting mechanism is used for driving the liquid path puncture needle to slide relative to the air path puncture needle.
Among the above-mentioned technical scheme, liquid medicine shifts adapter when using, and the butt joint of solution bottles such as casing and xiLin bottle, puncture structure insert xiLin bottle bottom. The gas circuit chamber has between the interior air vent of antithetical couplet gas vent and the outer air vent of antithetical couplet of gas circuit pjncture needle, and the outer air vent of antithetical couplet of gas circuit pjncture needle passes through gas circuit passageway and outside intercommunication, opens or seals the gas circuit passageway through gas circuit sealing member selectivity to selectively open or seal the gas circuit chamber, be convenient for balance xiLin bottle's inside and outside atmospheric pressure. A liquid path cavity is formed between the inner communicating liquid port and the outer communicating liquid port of the liquid path puncture needle, the inner communicating liquid port of the liquid path puncture needle is inserted into the penicillin bottle, the outer communicating liquid port of the liquid path puncture needle is sealed through a needleless connecting piece, and the injector extends into the liquid path cavity to draw liquid through inserting the needleless connecting piece. The dose adjusting mechanism can drive the liquid path puncture needle to slide relative to the air path puncture needle along the axial direction, so that the insertion depth of the liquid path puncture needle in the penicillin bottle is adjusted, and the adjustment of the single liquid pumping dose of the liquid path puncture needle is realized. The liquid medicine transfer adapter can effectively solve the problem of unbalanced internal and external air pressure during liquid extraction, can realize dosage adjustment during liquid extraction, and is favorable for conveniently and accurately extracting liquid medicine. In the adjusting process, the gas circuit puncture needle forms a sliding guide rail of the liquid circuit puncture needle, the liquid circuit puncture needle is attached to the gas circuit puncture needle to slide, axial deviation caused by shaking of the liquid circuit puncture needle in the adjusting process can be effectively avoided, and accordingly the situation that the deviation damages the air tightness of a penicillin bottle plug is effectively avoided.
In some possible embodiments, the dose adjustment mechanism includes a rotating motor disposed in the housing, a first driving member disposed in the fluid pathway puncture needle, and a second driving member drivingly coupled to a power output shaft of the rotating motor and engaged with the first driving member such that the first driving member moves relative to the second driving member along an axial direction of the fluid pathway puncture needle.
Among the above-mentioned technical scheme, adopt and rotate the motor drive, through the transmission of first driving piece and the second driving piece of intermeshing and drive the motion of liquid way pjncture needle, the drive is convenient, accurate.
In some possible embodiments, the first driving member is a rack disposed along the axial direction of the fluid pathway puncture needle, and the second driving member is a gear or a threaded rod engaged with the first driving member.
Among the above-mentioned technical scheme, set up the rack as first driving piece along the axial of liquid way pjncture needle to gear or threaded rod are as the second driving piece, and the structure sets up conveniently. The gear rack is adjusted in a manner of meshing with the gear, so that the transmission stability is good, and the transmission efficiency is high; adjust through rack and threaded rod meshing's mode, it is higher to adjust the precision.
In some possible embodiments, the dose setting mechanism comprises a setting sleeve and a rotation coupling sleeve, the setting sleeve being in threaded connection with the housing, the rotation coupling sleeve being arranged at an end of the setting sleeve remote from the solution bottle, the fluid pathway puncture needle being arranged coaxially with the setting sleeve and being rotatably connected with the rotation coupling sleeve.
In the technical scheme, the liquid path puncture needle is coaxially and rotatably connected with the adjusting sleeve through the adjusting sleeve, so that the adjusting sleeve can rotate around the liquid path puncture needle fitted on the gas path puncture needle. The adjusting sleeve is in threaded connection with the shell, the structure is simple to set, the adjusting sleeve is driven to rotate relative to the shell manually, and the adjusting sleeve can drive the liquid path puncture needle to move axially relative to the shell, so that dosage adjustment is achieved conveniently.
In some possible embodiments, the dose adjustment mechanism further includes a toggle member, the toggle member includes a transmission sleeve and a toggle wheel, the transmission sleeve is rotatably sleeved on the adjustment sleeve, and the toggle wheel is disposed on the transmission sleeve and is in transmission connection with the adjustment sleeve for driving the adjustment sleeve to rotate relative to the housing.
In the technical scheme, the poking wheel is in transmission connection with the adjusting sleeve, and the poking wheel is poked to drive the adjusting sleeve to rotate relative to the shell, so that the driving is convenient; the transmission ratio can be adjusted through the transmission connection of the poking wheel and the adjusting sleeve, and the adjustment precision is improved.
In some possible embodiments, the outer wall of the housing is provided with a scale marking corresponding to the puncture depth of the liquid path puncture needle, and the dose adjusting mechanism is provided with an observation portion reflecting the position of the liquid path puncture needle, the observation portion corresponding to the scale marking for reading the amount of the liquid to be transferred by the liquid path puncture needle.
Among the above-mentioned technical scheme, set up corresponding observation part and scale identification part for read the liquid way pjncture needle move liquid dosage, be convenient for more accurately move and get the dosage and adjust.
In some possible embodiments, the outer wall of the shell is provided with a plurality of groups of scale marks along the circumferential direction, and each group of scale marks corresponds to one specification of solution bottle.
Among the above-mentioned technical scheme, multiunit scale mark portion can correspond with solution bottles such as xiLin bottle of different specifications, and when being convenient for dock with different xiLin bottles, the homoenergetic more conveniently accurately moves and gets the dosage and adjust.
In some possible embodiments, the viewing portion is configured to be movable along a circumferential direction of the housing outer wall, such that the viewing portion can optionally correspond to any one of the sets of scale markings.
Among the above-mentioned technical scheme, the circumferential motion of casing outer wall can be followed to the observation portion for the observation portion can correspond with a set of scale mark portion that corresponds through the circumferential motion along the casing outer wall, can read more accurately and move liquid dose, thereby move liquid dose and adjust more accurately.
In some possible embodiments, a sliding groove matched with the gas path puncture needle is concavely arranged on one side of the liquid path puncture needle close to the gas path puncture needle, and the gas path puncture needle is slidably accommodated in the sliding groove.
In the technical scheme, the liquid path puncture needle is concavely provided with the sliding groove for slidably accommodating the gas path puncture needle, and the liquid path puncture needle and the gas path puncture needle are convenient to form. Simultaneously, because according to feed liquor volume and air input demand, the internal diameter is great usually compared with the gas circuit pjncture needle for the liquid circuit pjncture needle, inlays the gas circuit pjncture needle with the gas circuit pjncture needle slidable and locates the liquid circuit pjncture needle, and the concave sliding groove of establishing of liquid circuit pjncture needle can provide sufficient space holding gas circuit pjncture needle for the sliding fit of the two is also more stable.
In some possible embodiments, the end face of the insertion end of the gas path puncture needle and the end face of the insertion end of the liquid path puncture needle are both closed, the internal connection air vent is arranged on the side wall of the insertion end of the gas path puncture needle, and the internal connection liquid port is arranged on the side wall of the insertion end of the liquid path puncture needle.
Among the above-mentioned technical scheme, inserting the end and sealing, will ally oneself with the blow vent and the interior intercommunication liquid mouth sets up the lateral wall at the pjncture needle that corresponds, and interior antithetical couplet blow vent and interior intercommunication liquid mouth get into the foreign matter when avoiding the puncture structure to insert the solution bottle plug, are favorable to guaranteeing the unobstructed of interior antithetical couplet blow vent and interior intercommunication liquid mouth.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a sectional view of a medical fluid transfer adapter provided in accordance with an embodiment of the present application in a first operating state;
FIG. 2 is a sectional view of a medical fluid transfer adapter provided by an embodiment of the present application in a second operational configuration;
fig. 3 is a schematic structural diagram of a liquid medicine transfer adapter engaged with a vial according to an embodiment of the present disclosure;
FIG. 4 is an enlarged view of a portion of FIG. 1 at IV;
FIG. 5 is a schematic structural diagram of a puncturing structure provided in an embodiment of the present application;
FIG. 6 is an enlarged view of a portion of FIG. 1 at VI;
FIG. 7 is a cross-sectional view of an annular viewing element provided in an embodiment of the present application;
FIG. 8 is a cross-sectional view of another medical fluid transfer adapter provided in accordance with an embodiment of the present application, shown in a first operating condition;
FIG. 9 is a sectional view of another medical fluid transfer adapter provided in accordance with an embodiment of the present application in a second operational configuration;
fig. 10 is a partial enlarged view at X in fig. 8.
Icon: 100-medical fluid transfer adapter; 110-a housing; 111-a puncture mounting; 112-gas path channel; 113-gas path seal; 114-a receiving sleeve; 115-scale mark part; 120-a puncturing structure; 121-gas path puncture needle; 1211-inline vent; 1212-an external vent; 1213-gas circuit cavity; 122-a fluid path puncture needle; 1221-internal communication port; 1222-an external communication port; 1223-fluid lumen; 1224-sliding grooves; 123-needleless connections; 130-a dose adjustment mechanism; 131-a rotating motor; 132-a first drive member; 133-a second drive member; 134-an adjustment sleeve; 135-ring-shaped viewing member; 1351-a ring-shaped connection; 1352-observation part; 136-rotating the connecting sleeve; 137-a driving sleeve; 138-a toggle wheel; 200-penicillin bottles.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "inside", "outside", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the product of the application is conventionally placed in use, and are used only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Further, the term "parallel" or the like does not mean that an absolute relative positional relationship of the components is required, but may be slightly inclined.
First embodiment
Referring to fig. 1-2, the present disclosure provides a medical fluid transfer adapter 100 including a housing 110, a piercing structure 120, and a dose adjustment mechanism 130.
Referring to fig. 3, when the medical solution transferring adaptor 100 is in use, the housing 110 is used for docking with a solution bottle, for example, for detachably connecting with a vial 200 to dock with the mouth of the vial 200; one end of the puncturing structure 120 is used for puncturing the cap of the penicillin bottle 200 and inserting the penicillin bottle 200, and the other end of the puncturing structure 120 is used for accessing an injection device. The liquid medicine transferring adapter 100 is used in cooperation with the vial 200 and the injection device, and is used for transferring liquid into and out of the vial 200.
Illustratively, the end of the housing 110 for abutting against the vial 200 has an annular connecting wall, the opening of which is disposed toward the vial 200 for encircling the vial 200 at the mouth thereof. Optionally, the annular connecting wall is made of a deformable material, for example, a rubber material, so that the annular connecting wall forms a sealing connection with the outer wall of the mouth of the vial 200 when the vial is butted, thereby improving the sealing performance. Of course, in other embodiments, a clamping groove for interference fit with the outer wall of the opening of the penicillin bottle 200 may also be provided inside the annular connecting wall, so as to achieve better sealing performance.
The end of the housing 110 for docking with the vial 200 has a piercing mount 111 for mounting a piercing structure 120. An air passage channel 112 communicating with the outside is provided in the housing 110, and the housing 110 is provided with an air passage sealing member 113 selectively opening or closing the air passage channel 112.
Referring to fig. 4, for example, the air passage channel 112 opens in the puncture mounting seat 111, the center of the puncture mounting seat 111 has a mounting hole for mounting the puncture structure 120, the air passage channel 112 extends along the radial direction of the puncture mounting seat 111, and the air passage channel 112 penetrates from the outer wall of the puncture mounting seat 111 to the mounting hole.
Optionally, the air path sealing member 113 is disposed on an outer wall of the housing 110, so that the air path sealing member 113 can be directly pushed to selectively open or close the air path channel 112. Further, the air path sealing element 113 is a rubber ring, an installation groove corresponding to the air path channel 112 is formed in the outer wall of the puncture installation seat 111 along the circumferential direction, and the rubber ring is accommodated in the installation groove and blocks an opening which is used for being communicated with the outside in the air path channel 112. The rubber ring is slidably received in the mounting groove along the axial direction of the puncture mounting seat 111, so that the rubber ring can be exposed out of the air passage 112 under the action of external force for communicating with the outside, thereby conveniently realizing the selective opening or closing of the air passage 112.
The puncture structure 120 includes a gas path puncture needle 121 and a liquid path puncture needle 122.
The insertion end of the air channel puncture needle 121 is provided with an internal vent 1211, the other end of the air channel puncture needle 121 is provided with an external vent 1212, and an air channel cavity 1213 is arranged between the internal vent 1211 and the external vent 1212. The air passage puncture needle 121 has an insertion end of the inline vent 1211 for inserting into the vial 200 so that the inline vent 1211 communicates with the inside of the vial 200. The end of the air path puncture needle 121 with the external vent 1212 is fixedly connected to the puncture mounting seat 111 of the housing 110, and the external vent 1212 is communicated with the air path channel 112, so that the external vent is communicated with the outside of the vial 200.
When the liquid medicine transferring adapter 100 is used, the inline air vent 1211 of the air channel puncture needle 121 is communicated with the inside of the penicillin bottle 200, and the inline air vent 1212 of the air channel puncture needle 121 can be communicated with the outside through the air channel 112, so that the inside and the outside of the penicillin bottle 200 are communicated, the internal and external air pressures of the penicillin bottle 200 are convenient to balance, and the problem of unbalance of the internal and external air pressures during liquid pumping can be effectively solved.
Illustratively, the depth of the air path puncture needle 121 inserted into the vial 200 is slightly less than the depth of the vial 200, so that the inline vent 1211 can approach the bottom of the vial 200 in the working state, and the leakage of the liquid medicine through the air path puncture needle 121 is prevented.
Further, a check valve is optionally disposed in the air path cavity 1213 of the air path puncture needle 121, and the check valve is configured to allow fluid to flow from the external connection vent 1212 to the internal connection vent 1211 in the air path cavity 1213, and prevent the fluid from flowing from the internal connection vent 1211 to the external connection vent 1212 in the air path cavity 1213, so as to prevent the liquid in the penicillin bottle 200 from flowing into the air path cavity 1213 during the insertion of the penicillin bottle 200 by the air path puncture needle 121.
The insertion end of the liquid path puncture needle 122 is provided with an inner communication liquid port 1221, the other end of the liquid path puncture needle 122 is provided with an outer communication liquid port 1222, and a liquid path cavity 1223 is arranged between the inner communication liquid port 1221 and the outer communication liquid port 1222. The insertion end of the liquid path puncture needle 122 with the inner communication liquid port 1221 is used for being inserted into the penicillin bottle 200 so that the inner communication liquid port 1221 is communicated with the interior of the penicillin bottle 200. The end of the air channel puncture needle 121 with the outer communication port 1222 is connected with the puncture mounting seat 111 of the housing 110 and located outside the vial 200, and the outer communication port 1222 is sealed by a needle-free connector 123, the needle-free connector 123 is illustratively a rubber plug, but of course, in other embodiments, a septum or other structures into which the injection device can be inserted in a needle-free state may be provided. The needleless connector 123 is used for inserting an injection device such as a syringe into the liquid path cavity 1223, so as to transfer liquid into and out of the vial 200.
In the embodiment of the present application, the fluid path puncture needle 122 is parallel to the air path puncture needle 121 and is slidably and hermetically connected with the air path puncture needle 121 along the axial direction, and the fluid path puncture needle 122 is slidably disposed on the puncture mounting seat 111 along the axial direction. Illustratively, the puncture mounting seat 111 is configured as a rubber seat for better achieving a slidable sealing engagement between the fluid path puncture needle 122 and the puncture mounting seat 111. The dosage adjusting mechanism 130 is used for driving the liquid path puncture needle 122 to slide relative to the air path puncture needle 121, so as to adjust the insertion depth of the liquid path puncture needle 122 in the vial 200, and realize adjustment of the single liquid medicine shifting dosage of the liquid path puncture needle 122. In the process of adjusting by driving the liquid path puncture needle 122 to move through the dosage adjusting mechanism 130, the gas path puncture needle 121 forms a sliding guide rail of the liquid path puncture needle 122, the liquid path puncture needle 122 is attached to the gas path puncture needle 121 to slide up and down along the axial direction, so that the axial deviation caused by the shaking of the liquid path puncture needle 122 in the adjusting process can be effectively avoided, and the air tightness of the vial stopper of the penicillin bottle 200 is effectively prevented from being damaged by the deviation.
In some possible embodiments, the fluid path puncture needle 122 and the air path puncture needle 121 have a concave-convex structure matched with each other, and the fluid path puncture needle 122 can slide along the air path puncture needle 121.
Referring to fig. 5, in an exemplary embodiment, a sliding groove 1224 engaged with the air channel puncture needle 121 is concavely disposed on a side of the liquid channel puncture needle 122 close to the air channel puncture needle 121, an inner wall of the sliding groove 1224 is exemplarily an arc shape capable of fitting with an outer wall of the air channel puncture needle 121, and the air channel puncture needle 121 is slidably received in the sliding groove 1224. The sliding groove 1224 is concavely arranged on the fluid path puncture needle 122 for slidably accommodating the air path puncture needle 121, so that the fluid path puncture needle 122 and the air path puncture needle 121 can be conveniently formed.
Meanwhile, as the liquid path puncture needle 122 and the gas path puncture needle 121 are generally larger in inner diameter compared with a multi-specification puncture needle which is adaptive to the requirements of liquid inlet amount and air inlet amount, the gas path puncture needle 121 is slidably embedded in the liquid path puncture needle 122, and the sliding groove 1224 concavely arranged on the liquid path puncture needle 122 can provide sufficient space for accommodating the gas path puncture needle 121, so that the sliding fit of the liquid path puncture needle and the gas path puncture needle is more stable.
In some exemplary embodiments, the orthographic projection of the airway puncture needle 121 in the axial direction and the orthographic projection of the fluid access puncture needle 122 in the axial direction are circular or elliptical. For example, the orthographic projection of the liquid path puncture needle 122 in the axial direction is circular or oval, and the orthographic projection of the gas path puncture needle 121 in the axial direction is inscribed in the orthographic projection of the liquid path puncture needle 122 in the axial direction, so that the outer edge of the cross section of the puncture structure 120 is circular or oval, and after the puncture structure 120 penetrates through the bottle cap of the penicillin bottle 200, when the liquid path puncture needle 122 slides relative to the bottle cap of the penicillin bottle 200, the puncture structure 120 and the bottle cap of the penicillin bottle 200 have good sealing performance.
Referring to fig. 6, further, in the embodiment of the present application, an end surface of the insertion end of the air path puncture needle 121 and an end surface of the insertion end of the liquid path puncture needle 122 are both closed, the internal vent 1211 is opened on a side wall of the insertion end of the air path puncture needle 121, and the internal communication liquid port 1221 is opened on a side wall of the insertion end of the liquid path puncture needle 122, which prevents the internal vent 1211 and the internal communication liquid port 1221 from entering foreign matters when the puncture structure 120 is inserted into the stopper of the vial 200, and is favorable for ensuring that the internal vent 1211 and the internal communication liquid port 1221 are unobstructed.
Illustratively, in the embodiment of the present application, the end of housing 110 that is away from vial 200 when it is docked with vial 200 has a receiving sleeve 114 for mounting dose adjustment mechanism 130; meanwhile, when the dosage adjusting mechanism 130 drives the liquid path puncture needle 122 to slide towards the direction away from the penicillin bottle 200, the needleless connecting piece 123 is accommodated and part of the liquid path puncture needle 122 slides out.
It should be noted that the air passage 112 is not limited to be opened in the puncture mounting seat 111, but may also be opened through a side wall of the accommodating sleeve 114, at this time, when the needle-free connector 123 slides along with the fluid passage puncture needle 122, an opening of one end of the accommodating sleeve 114 far away from the puncture mounting seat 111 is always kept closed, and the exemplary needle-free connector 123 is slidably and hermetically engaged with the inside of the accommodating sleeve 114, so as to ensure that an inner cavity of the accommodating sleeve 114 communicating with the air passage 112 is kept in a sealed state.
In some possible embodiments, the dose adjustment mechanism 130 has an adjustment sleeve 134 for slidably sleeving the receiving sleeve 114. The needle-free connecting piece 123 is connected to the adjusting sleeve 134, so that when the fluid path puncture needle 122 drives the needle-free connecting piece 123 to slide in the accommodating sleeve 114 along the axial direction, the adjusting sleeve 134 can slide relative to the accommodating sleeve 114 along the axial direction, which is beneficial to further improving the sliding stability of the fluid path puncture needle 122.
Optionally, the outer wall of the housing 110 is provided with a scale mark 115 corresponding to the puncture depth of the fluid path puncture needle 122, and the scale mark 115 is exemplarily disposed on the outer wall of the accommodating sleeve 114. The dose adjustment mechanism 130 is provided with an observation portion 1352 of the position of the reaction liquid passage puncture needle 122, the observation portion 1352 is provided as an observation window, for example, and the observation portion 1352 is exemplarily provided at one end of the adjustment sleeve 134 near the vial 200. The observation portion 1352 corresponds to the scale mark portion 115 and reads the pipetting amount of the liquid path puncture needle 122, thereby facilitating adjustment of the pipetting amount more accurately.
Further, the outer wall of the casing 110 is provided with a plurality of groups of scale identification parts 115 along the circumferential direction, each group of scale identification parts 115 corresponds to one penicillin bottle 200 of one specification, and the plurality of groups of scale identification parts 115 can correspond to different penicillin bottles 200 of different specifications, so that when the penicillin bottles 200 are in butt joint with each other, the penicillin bottles can be moved more conveniently and accurately to adjust the dosage.
In embodiments where multiple sets of scale markings 115 are provided, optionally, the viewing portion 1352 is configured to move circumferentially along the outer wall of the housing 110 such that the viewing portion 1352 can optionally correspond to any one set of scale markings 115.
Referring to fig. 7, for example, an end of the adjusting sleeve 134 close to the penicillin bottle 200 is provided with an annular observing member 135, the annular observing member 135 includes an annular connecting portion 1351 and an observing portion 1352 opened on the annular connecting portion 1351, the annular connecting portion 1351 is rotatably connected with the adjusting sleeve 134, so that the observing portion 1352 can move along the circumferential direction of the outer wall of the housing 110, so that the observing portion 1352 can optionally correspond to any one of the sets of scale marks 115, and the pipetting dose can be read more accurately, thereby performing the pipetting dose adjustment more accurately.
It is understood that in the embodiment of the present application, the dose adjustment mechanism 130 is not limited to be disposed in any way, and may be driven manually or electrically.
In this embodiment, the dose setting mechanism 130 comprises a rotation motor 131, a first driver 132 and a second driver 133. The first driving member 132 is disposed on the fluid path puncture needle 122. The rotating motor 131 is disposed on the housing 110, and the rotating motor 131 is connected to the inner wall of the accommodating sleeve 114 by a supporting frame. The second driving member 133 is drivingly connected to the power output shaft of the rotating electric machine 131. And engages the first driving member 132 to move the first driving member 132 relative to the second driving member 133 in the axial direction of the fluid passage needle 122. The liquid path puncture needle 122 is driven by a rotating motor 131 and driven by a first driving piece 132 and a second driving piece 133 which are meshed with each other, so that the driving is convenient and accurate.
It should be noted that, in the present application, the manner of engaging the first driving member 132 and the second driving member 133 is not limited, for example, but not limited to, engaging a gear with a rack, engaging a thread with a thread, and engaging a thread with a rack.
Illustratively, the first drive member 132 is a rack disposed along the axial direction of the fluid path puncture needle 122. The second driving member 133 can be selected as a gear engaged with the first driving member 132, and is adjusted in a manner of engaging the rack with the gear, so that the transmission stability is good and the transmission efficiency is high. The second driving member 133 may also be selected as a threaded rod engaged with the first driving member 132, such as a lead screw, a worm, etc., with a high degree of adjustment.
Second embodiment
Referring to fig. 8-9, the present embodiment provides a medical fluid transfer adapter 100 that differs from the medical fluid transfer adapter 100 provided in the first embodiment in the manner in which the dose setting mechanism 130 is driven.
In this embodiment, the dosage adjustment mechanism 130 further includes a rotation connection sleeve 136, and the rotation connection sleeve 136 is disposed at an end of the adjustment sleeve 134 far from the vial 200. The fluid path puncture needle 122 and the adjusting sleeve 134 are coaxially arranged, and the fluid path puncture needle 122 and the rotation connecting sleeve 136 are rotatably connected through mutually matched protrusions and grooves, so that the adjusting sleeve 134 can rotate around the fluid path puncture needle 122 attached to the gas path puncture needle 121. The adjusting sleeve 134 is in threaded connection with the housing 110, the structure is simple, the adjusting sleeve 134 is manually driven to rotate relative to the housing 110, and at the moment, the adjusting sleeve 134 can drive the liquid path puncture needle 122 to axially move relative to the housing 110, so that the dose adjustment is conveniently realized.
Referring to fig. 10, in some possible embodiments, the dose adjustment mechanism 130 further includes a toggle member, the toggle member includes a transmission sleeve 137 and a toggle wheel 138, the transmission sleeve 137 is rotatably sleeved on the adjustment sleeve 134, the toggle wheel 138 is disposed on the transmission sleeve 137 and is in transmission connection with the adjustment sleeve 134, for example, the toggle wheel 138 is provided with a driving gear, and a circumference of an outer wall of the adjustment sleeve 134 is provided with a toothed structure engaged with the driving gear, for driving the adjustment sleeve 134 to rotate relative to the housing 110. The toggle wheel 138 is toggled to drive the adjusting sleeve 134 to rotate relative to the shell 110, so that the driving is convenient; the transmission ratio can also be adjusted through the transmission connection of the toggle wheel 138 and the adjusting sleeve 134, which is beneficial to improving the adjusting precision.
In the liquid medicine transferring adapter 100 provided by the embodiment of the present application, the housing 110 is configured to be in butt joint with the penicillin bottle 200, one end of the puncturing structure 120 is configured to puncture a bottle cap of the penicillin bottle 200 and insert the penicillin bottle 200, and the other end of the puncturing structure 120 is configured to be accessed by an injection device and configured to transfer liquid into and out of the penicillin bottle 200. When the liquid medicine transferring adapter 100 is used, the internal connection air vent 1211 of the air channel puncture needle 121 is communicated with the inside of the penicillin bottle 200, and the external connection air vent 1212 of the air channel puncture needle 121 can be communicated with the outside through the air channel 112, so that the inside and the outside of the penicillin bottle 200 are communicated, the internal and external air pressures of the penicillin bottle 200 are conveniently balanced, and the problem of unbalanced internal and external air pressures during liquid pumping can be effectively solved. The dosage adjusting mechanism 130 is used for driving the liquid path puncture needle 122 to slide relative to the air path puncture needle 121, so as to adjust the insertion depth of the liquid path puncture needle 122 in the vial 200, and realize adjustment of the single liquid medicine shifting dosage of the liquid path puncture needle 122. In the process of adjusting by driving the liquid path puncture needle 122 to move by the dose adjusting mechanism 130, the gas path puncture needle 121 forms a sliding guide rail of the liquid path puncture needle 122, the liquid path puncture needle 122 is attached to the gas path puncture needle 121 to slide up and down along the axial direction, so that the axial deviation caused by the shaking of the liquid path puncture needle 122 in the adjusting process can be effectively avoided, and the air tightness of the vial stopper of the penicillin bottle 200 is effectively prevented from being damaged by the deviation.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A medical fluid transfer adapter, comprising:
the device comprises a shell, a liquid bottle, a liquid inlet pipe, a liquid outlet pipe and a liquid outlet pipe, wherein the shell is used for being butted with the liquid bottle, an air path channel communicated with the outside is arranged in the shell, and an air path sealing piece for selectively opening or closing the air path channel is arranged on the shell;
the puncture structure is inserted into the bottom of the solution bottle and comprises a gas path puncture needle and a liquid path puncture needle;
the insertion end of the gas path puncture needle is provided with an internal air vent, and the other end of the gas path puncture needle is fixedly connected with the shell and is provided with an external air vent communicated with the gas path channel;
the insertion end of the liquid path puncture needle is provided with an internal communicating liquid port, the other end of the liquid path puncture needle is provided with an external communicating liquid port and is sealed through a needleless connector, and the liquid path puncture needle is parallel to the gas path puncture needle and is in slidable sealing connection with the gas path puncture needle along the axial direction; and
the dosage adjusting mechanism is used for driving the liquid path puncture needle to slide relative to the gas path puncture needle;
the dose adjusting mechanism comprises an adjusting sleeve and a rotating connecting sleeve, the adjusting sleeve is in threaded connection with the shell, the rotating connecting sleeve is arranged at one end, far away from the solution bottle, of the adjusting sleeve, and the liquid path puncture needle is coaxially arranged with the adjusting sleeve and is rotatably connected with the rotating connecting sleeve.
2. The medical fluid transfer adapter according to claim 1, wherein the dose adjustment mechanism includes a rotary motor, a first driving member and a second driving member, the rotary motor is disposed in the housing, the first driving member is disposed in the fluid path puncture needle, and the second driving member is drivingly connected to a power output shaft of the rotary motor and engaged with the first driving member, so that the first driving member moves relative to the second driving member along an axial direction of the fluid path puncture needle.
3. The medical fluid transfer adapter according to claim 2, wherein the first driving member is a rack provided along an axial direction of the fluid pathway puncture needle, and the second driving member is a gear or a threaded rod engaged with the first driving member.
4. The medical fluid transfer adapter according to claim 1, wherein the dose adjustment mechanism further comprises a toggle member, the toggle member comprises a transmission sleeve and a toggle wheel, the transmission sleeve is rotatably sleeved on the adjustment sleeve, and the toggle wheel is disposed on the transmission sleeve and is in transmission connection with the adjustment sleeve, and is configured to drive the adjustment sleeve to rotate relative to the housing.
5. The adapter for transferring drug solution according to any one of claims 1 to 4, wherein the outer wall of the housing is provided with a scale mark corresponding to the puncture depth of the fluid pathway puncture needle, and the dose adjustment mechanism is provided with an observation portion that reflects the position of the fluid pathway puncture needle, the observation portion corresponding to the scale mark for reading the amount of the transferred liquid of the fluid pathway puncture needle.
6. The medical liquid transfer adapter according to claim 5, wherein the outer wall of the housing is provided with a plurality of sets of the scale marks along a circumferential direction, each set of the scale marks corresponding to one specification of the solution bottle.
7. The medical fluid transfer adapter according to claim 6, wherein the observation portion is configured to be movable in a circumferential direction of the housing outer wall so that the observation portion can optionally correspond to any one of the sets of the scale markings.
8. The adapter for transferring medical liquid according to any one of claims 1 to 4, wherein a sliding groove for engaging with the air channel puncture needle is concavely provided on a side of the liquid channel puncture needle adjacent to the air channel puncture needle, and the air channel puncture needle is slidably received in the sliding groove.
9. The adapter for transferring medical liquid according to any one of claims 1 to 4, wherein the end surface of the insertion end of the air channel puncture needle and the end surface of the insertion end of the fluid channel puncture needle are closed, the inline vent is opened in the side wall of the insertion end of the air channel puncture needle, and the inline fluid port is opened in the side wall of the insertion end of the fluid channel puncture needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332975.3A CN111012663B (en) | 2019-12-20 | 2019-12-20 | Liquid medicine transfer adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332975.3A CN111012663B (en) | 2019-12-20 | 2019-12-20 | Liquid medicine transfer adapter |
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| Publication Number | Publication Date |
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| CN111012663A CN111012663A (en) | 2020-04-17 |
| CN111012663B true CN111012663B (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911332975.3A Active CN111012663B (en) | 2019-12-20 | 2019-12-20 | Liquid medicine transfer adapter |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112538427B (en) * | 2020-11-16 | 2023-04-07 | 中国人民解放军陆军军医大学第二附属医院 | Intestinal lymphocyte culture apparatus |
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| CN111012663A (en) | 2020-04-17 |
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