CN113662856B - Medicine feeder for insertion tube - Google Patents
Medicine feeder for insertion tube Download PDFInfo
- Publication number
- CN113662856B CN113662856B CN202110983489.9A CN202110983489A CN113662856B CN 113662856 B CN113662856 B CN 113662856B CN 202110983489 A CN202110983489 A CN 202110983489A CN 113662856 B CN113662856 B CN 113662856B
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- China
- Prior art keywords
- tube
- cavity
- medicine
- face
- syringe
- Prior art date
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- 239000003814 drug Substances 0.000 title claims abstract description 168
- 229940079593 drug Drugs 0.000 title description 16
- 238000003780 insertion Methods 0.000 title description 8
- 230000037431 insertion Effects 0.000 title description 8
- 239000007924 injection Substances 0.000 claims abstract description 92
- 238000002347 injection Methods 0.000 claims abstract description 92
- 238000000227 grinding Methods 0.000 claims abstract description 77
- 239000007788 liquid Substances 0.000 claims abstract description 77
- 238000007789 sealing Methods 0.000 claims description 27
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000002627 tracheal intubation Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 10
- 238000003825 pressing Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 206010010071 Coma Diseases 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 235000021056 liquid food Nutrition 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- 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
- A61J7/00—Devices for administering medicines orally, e.g. spoons; Pill counting devices; Arrangements for time indication or reminder for taking medicine
- A61J7/0007—Pill breaking or crushing devices
-
- 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
- A61J15/00—Feeding-tubes for therapeutic purposes
- A61J15/0003—Nasal or oral feeding-tubes, e.g. tube entering body through nose or mouth
-
- 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
- A61J7/00—Devices for administering medicines orally, e.g. spoons; Pill counting devices; Arrangements for time indication or reminder for taking medicine
- A61J7/0015—Devices specially adapted for taking medicines
- A61J7/0053—Syringes, pipettes or oral dispensers
Abstract
The invention discloses a medicine feeder for intubation, which is characterized in that a cavity A is formed in an injection cylinder and is positioned between a push tube and the end of the injection tube, a plug body is connected in the push tube in a reciprocating and movable mode, the plug body divides the push tube into a cavity B and a cavity C, a medicine grinding plate is fixedly connected with the plug body, a pull rod is fixedly connected with the medicine grinding plate, the end face of the medicine grinding plate, which is provided with the pull rod, is provided with a clamping strip, the inner wall of the injection cylinder, which is positioned on the end face of the injection tube, is provided with a clamping groove, the end face of the push tube, which is away from the injection tube, is provided with a liquid suction tube, the end face of the push tube, which is away from the injection tube, is fixedly connected with a cover, the end face of the push tube, which is facing the injection tube, is provided with a one-way valve A, and the plug body is provided with a one-way valve B. According to the medicine feeder for the cannula, disclosed by the invention, the medicine feeding device for the cannula can crush the medicine tablet, mix the medicine tablet with the medicine liquid and flush the cannula after sucking the medicine liquid once during cannula medicine feeding, so that medical staff can conveniently feed medicine to a patient in the cannula.
Description
Technical Field
The invention relates to the technical field of drug feeding devices special for intubated patients, in particular to a drug feeder for intubated patients.
Background
The patient with serious illness can be in coma, and the patient in coma can be generally subjected to intubation. And the medicine feeding and feeding of the intubated patient are inconvenient. The nasal feeding tube is also inserted into the patient in coma, so that the medicine liquid or liquid food is directly fed through the nasal feeding tube. In the current operation, the problems are not great because the fed food is liquid food, and the nasal feeding tube is relatively convenient to use. However, in the process of feeding medicine, especially many medicines are in the form of tablets, and only liquid and fluid medicines can be fed through the nasal feeding tube, so that the tablets need to be put into a device special for grinding the tablets to be ground into powder when fed, the powder is transferred into a container and added with medicine liquid for mixing, and the medicine liquid is sucked into a syringe and then fed through the nasal feeding tube after being mixed with the medicine liquid. The existing method has more complicated operation steps, and each time of transferring the medicine powder and the medicine liquid, the medicine powder and the medicine liquid are remained, so that the actual medicine effect cannot reach the medicine effect in the doctor prescription.
Disclosure of Invention
The invention aims at: the medicine feeder for the cannula overcomes the defects of the prior art, realizes a plurality of operation steps of crushing the tablet, mixing the tablet with the medicine liquid and flushing the cannula after sucking the medicine liquid once during cannula medicine feeding, and is convenient for medical staff to feed medicine to a cannula patient; through the groove-shaped structure of the medicine grinding plate, the medicine tablet is convenient to place and grind, and medicine powder is prevented from being rolled to the inner wall of the injection cylinder as much as possible, so that medicine powder residue is avoided, and medicine effect is reduced; through the silk screen layer structure arranged on the surface of the medicine grinding plate, the medicine tablet can be ground to obtain finer and uniform particles, and the ground medicine powder can directly pass through the silk screen layer, so that the phenomenon that the residual medicine powder layer between the medicine grinding plate and the push tube is thicker to influence the push tube and the medicine grinding plate to have larger powder particles after grinding is avoided; at the same time, the powder is prevented from contacting the inner wall of the injector; the fixing of the medicine grinding plate is realized through the clamping strips of the medicine grinding plate and the clamping grooves of the injection cylinder, so that the up-and-down relative movement and the relative rotation of the plug body and the push tube are realized; the axial groove and the limit groove arranged through the limit convex ring are matched with the connecting piece and the flanging of the connecting sleeve, and the corresponding thread structure and the corresponding cover cap are in threaded connection with the injection cylinder respectively, so that the up-and-down movement and rotation between the push tube and the injection cylinder are convenient, medical staff can easily and effectively roll the tablets on the drug grinding plate, the liquid suction tube can be sealed and opened, and the liquid medicine in the cavity C of the push tube can gradually enter the cavity B, the cavity A and the injection and drug feeding are realized.
The technical scheme adopted by the invention is as follows:
the utility model provides a syringe is used feeds medicine ware, includes syringe and matched push tube, the one end of syringe is equipped with syringe, the other end is uncovered, the push tube stretches into in the syringe from uncovered, and along syringe axial reciprocating motion connection, the push tube is the hollow tube, in the syringe, be located between the place end of push tube and syringe, the push tube is interior to be connected with matched plug body along syringe axial reciprocating motion, the plug body separates into cavity B towards syringe one side and cavity C of syringe facing the back, the plug body is towards cavity B's terminal surface coaxial fixedly connected with axle center pole, the one end of axle center pole stretches out the push tube and gets into cavity A in to fixedly connected with grinding plate, grinding plate is the mesh board, grinding plate is located the terminal surface of syringe facing the terminal surface of syringe and matches, grinding plate is located the syringe face and is equipped with the syringe face to be equipped with the sealing clip that is equipped with the side cover plate in the side face of syringe to the side of syringe, the push tube is equipped with the sealing clip is located the side face of syringe and is equipped with the cavity B to the side of syringe, the side of syringe is equipped with the sealing clip, the side cover plate is located the side of syringe is equipped with the side of syringe and is equipped with the sealing clip, and is located the side of syringe and is equipped with the syringe.
According to the further improved scheme, a sealing ring A matched with the inner wall of the injection cylinder is fixedly connected to the outer side wall of the push tube, a sealing ring B matched with the inner wall of the push tube is fixedly connected to the outer side wall of the plug body, and a sealing ring C matched with the axle center rod is arranged on the end face of one end of the push tube facing the cavity A and on the inner wall of the rod penetrating hole corresponding to the axle center rod.
According to a further improvement scheme, the sealing ring A is arranged on the outer side wall of the push tube and close to one end facing the cavity A.
According to a further improvement scheme, the bottom center of the medicine grinding plate is a flat plate perpendicular to the axis rod, the edge of the flat plate is inclined to one side of the push tube along the direction from inside to outside to form a groove structure, and liquid through holes are uniformly distributed on the surface of the medicine grinding plate.
According to a further improvement scheme, the end face of the medicine grinding plate, which faces the push tube, is fixedly connected with a silk screen layer, and meshes of the silk screen layer are smaller than the liquid through holes.
According to a further improvement of the invention, the silk screen layer material is stainless steel metal wires.
According to a further improvement scheme, the medicine grinding plate is provided with a thread groove corresponding to the pull rod, and the pull rod is provided with a matched external thread A corresponding to the thread groove A.
According to a further improved scheme, one end, far away from the medicine grinding plate, of the pull rod is coaxially and fixedly connected with a handheld rod, the outer diameter of the handheld rod is smaller than the inner diameter of the injection tube, and anti-skidding patterns are uniformly formed on the surface of the handheld rod.
According to a further improvement scheme, when the clamping strips of the medicine grinding plate are contacted with the clamping grooves, the handheld rod extends out of the injection tube.
According to a further improved scheme, the outer side face of the end face of the liquid suction pipe is arranged on the push pipe, a limiting convex ring is arranged on the pipe wall corresponding to the push pipe, a connecting sleeve is attached to the inner wall of the limiting convex ring, a plurality of axial grooves are formed in the outer side wall of the limiting convex ring along the axial direction, the axial grooves extend to the pipe wall of the push pipe, the axial grooves are uniformly distributed by taking the axis of the push pipe as the center, a limiting groove is formed in the position, corresponding to the axial grooves, of one side edge, opposite to the push pipe, of the limiting convex ring, a flange is arranged on the position, corresponding to the limiting groove, of the connecting sleeve, a matched connecting piece is arranged on the outer side wall of the connecting piece and the outer side wall of the limiting convex ring, corresponding to the axial grooves, matched external threads B are arranged on the outer side wall of the connecting piece, and the opening end of the inner wall of the cover cap and the opening end of the inner wall of the injection cylinder are respectively provided with matched thread grooves B and thread grooves C.
According to a further improvement scheme, a sealing plug matched with the inner diameter of the liquid suction pipe is fixedly arranged in the center of the cover cap.
According to a further improved scheme, a pair of side baffles A are symmetrically and fixedly connected to the outer side wall of the injection cylinder and the opposite sides corresponding to the open end, and a pair of side baffles B are symmetrically and fixedly connected to the outer side wall of the push tube and the opposite sides corresponding to the end where the liquid suction tube is located; when the axial grooves are correspondingly positioned in the range of the side baffle B, the side baffle B is provided with a through-piece hole matched with the connecting piece corresponding to the axial grooves; when the axial groove is correspondingly positioned on one side of the side baffle B and is partially overlapped with the side baffle B, the side baffle B is provided with a notch matched with the connecting sheet corresponding to the part overlapped with the axial groove.
According to a further improved scheme, the connecting line of the side baffle A is perpendicular to the connecting line of the side baffle B; or the connecting line of the side baffle A is parallel to the connecting line of the side baffle B, and the distance between the outer edge of the side baffle B and the axle center is larger than that between the outer edge of the side baffle A and the axle center.
When the push tube moves downwards to the maximum travel, the end of the push tube facing the injection tube presses the medicine grinding plate at the end of the injection tube provided with the injection tube, at the moment, the plug body moves into the push tube to be attached to the end of the push tube provided with the liquid suction tube, and a space is arranged between the push plate B and the push plate A.
According to a further improvement scheme, the clamping strips are matched with and fixed in a clamping way through clamping grooves.
According to a further improvement scheme, the plug body is detachably and fixedly connected with the axle center rod.
According to a further improvement, the push tube comprises two matched push tube groove units which are detachably, hermetically and fixedly connected.
According to a further improvement scheme, the sealing and fixing connection part of the pushing tube groove unit is positioned at one side of the sealing ring A of the pushing tube, which is opposite to the injection tube.
In a further improvement scheme of the invention, one end of the clamping groove facing the injection tube is communicated with an upper opening in the injection tube in a penetrating way.
The invention has the beneficial effects that:
the medicine feeder for the cannula realizes a plurality of operation steps of crushing the tablet, mixing the tablet with the medicine liquid and flushing the cannula after sucking the medicine liquid once during cannula medicine feeding, and is convenient for medical staff to feed medicine to a cannula patient.
Secondly, the medicine feeder for the insertion tube of the invention is convenient for placing and rolling the tablets through the groove-shaped structure of the medicine rolling plate, and avoids medicine powder residue caused by rolling the medicine powder to the inner wall of the injection tube as much as possible, thereby reducing medicine effect.
Thirdly, according to the medicine feeder for the insertion tube, through the screen mesh layer structure arranged on the surface of the medicine grinding plate, the medicine tablet can be ground to be finer and more uniform in particles, and the ground medicine powder can directly pass through the screen mesh layer, so that the phenomenon that the residual medicine powder layer between the medicine grinding plate and the push tube is thicker to influence the larger medicine powder particles after the push tube and the medicine grinding plate are ground is avoided; and at the same time, the powder is prevented from contacting the inner wall of the injector.
Fourth, the medicine feeder for the insertion tube of the invention realizes the fixation of the medicine grinding plate through the clamping strips of the medicine grinding plate and the clamping grooves of the injection tube, thereby realizing the up-down relative movement and the relative rotation of the plug body and the push tube.
Fifth, the medicine feeder for the insertion tube of the invention is matched with the connecting piece and the flanging of the connecting sleeve through the axial groove and the limiting groove which are arranged on the limiting convex ring, and the corresponding thread structure and the corresponding cover cap are respectively in threaded connection with the injection tube, so that the up-and-down movement and the rotation between the push tube and the injection tube are convenient, the medical staff can easily and effectively roll the tablets on the medicine grinding plate, and the sealing and the opening of the liquid suction tube can be realized, so that the medicine liquid in the cavity C in the push tube gradually enters the cavity B, the cavity A and the injection medicine feeding into the insertion tube.
Description of the drawings:
fig. 1 is a schematic cross-sectional front view of the present application.
Fig. 2 is a schematic top view of the push tube of the present application with a connection sleeve mounted.
Fig. 3 is a schematic top view of a push tube of the present application without a connection sleeve attached.
Figure 4 is a schematic cross-sectional front view of the present application in preparation for crushing a tablet.
Figure 5 is a schematic view in front cross-section of the present application crushing a tablet.
Fig. 6 is a schematic front cross-sectional view of the connection sleeve of the present application removed.
Fig. 7 is a schematic front cross-sectional view of the present application when grinding the abrasive tablet again.
Fig. 8 is a schematic front cross-sectional view of the present application when absorbing liquid.
Fig. 9 is a schematic front cross-sectional view of an in-push tube feed of the present application.
Fig. 10 is a schematic cross-sectional front view of the mixing of the fluid feed within the syringe of the present application.
Fig. 11 is a schematic cross-sectional front view of a syringe of the present application after administration.
Fig. 12 is a schematic cross-sectional front view of secondary fluid mixing within a syringe of the present application.
Fig. 13 is a schematic front cross-sectional view of a syringe of the present application after a secondary administration.
Fig. 14 is a schematic cross-sectional front view of an in-cylinder fluid flush of the present application.
Fig. 15 is a schematic cross-sectional front view of a syringe after flushing.
Fig. 16 is a schematic cross-sectional front view of a secondary fluid inlet flush within a syringe of the present application.
Fig. 17 is a schematic cross-sectional front view of a syringe of the present application after a secondary flush.
The specific embodiment is as follows:
referring to fig. 1-3, the drug feeder for insertion tube comprises a syringe 1 and a matched push tube 2, wherein one end of the syringe 1 is provided with a syringe 6, the other end is open, the push tube 2 extends into the syringe 1 from the open end and is connected with the syringe 1 in a reciprocating manner along the axial direction of the syringe 1, the push tube 2 is a hollow tube, a cavity A15 is formed in the syringe 1 and between the push tube 2 and the end of the syringe 6, a matched plug body 4 is connected with the push tube 2 in a reciprocating manner along the axial direction of the push tube 2, the plug body 4 divides the push tube 2 into a cavity B17 facing one side of the syringe 6 and a cavity C18 facing away from the syringe 6, the end face of the plug body 4 facing the cavity B17 is coaxially and fixedly connected with an axial rod 5, one end of the axial rod 5 extends out of the push tube 2 into the cavity A15 and is fixedly connected with a drug grinding plate 3, the drug grinding plate 3 is a net plate, the end face of the medicine grinding plate 3 facing away from the injection tube 6 is matched with the end face of the push tube 2 facing the injection tube 6, the end face of the medicine grinding plate 3 facing the injection tube 6 is detachably and fixedly connected with a pull rod 7 extending out of the injection tube 6 corresponding to the injection tube 6, the medicine grinding plate 3 is provided with the end face of the pull rod 7, clamping strips 22 which are radially arranged are arranged around the pull rod 7, the inner wall of the end face of the injection tube 6 of the injection tube 1 is provided with clamping grooves 21 which are matched and fixed with the clamping strips 22, the end face of the push tube 2 facing away from the injection tube 6 is communicated with a liquid suction tube 8, the end face of the push tube 2 facing away from the injection tube 6 is also detachably and fixedly connected with a cover cap 9 used for sealing the liquid suction tube 8, the end face of the push tube 2 facing the injection tube 6 is provided with a one-way valve A13 communicated from a cavity B17 to a cavity A15, the plug body 4 is provided with a one-way valve B14 communicated from a cavity C18 to a cavity B17, when the push tube 2 presses the medicine grinding plate 3 on the end face of the injection tube 1 where the injection tube 6 is located, one end of the push tube 2 provided with the liquid suction tube 8 is located outside the opening of the injection tube 1.
The outer side wall of the push tube 2 is fixedly connected with a sealing ring A10 matched with the inner wall of the injection tube 1, the outer side wall of the plug body 4 is fixedly connected with a sealing ring B11 matched with the inner wall of the push tube 2, and a sealing ring C12 matched with the axle center rod 5 is arranged on the end face of one end of the push tube 2 facing the cavity A15 and on the inner wall of the rod penetrating hole corresponding to the axle center rod 5.
The sealing ring A10 is arranged on the outer side wall of the push tube 2 near one end facing the cavity A15.
The bottom center of the medicine grinding plate 3 is a flat plate vertical to the axle center rod 5, the edge of the flat plate inclines towards one side of the push tube 2 along the direction from inside to outside to form a groove structure, and liquid through holes 20 are uniformly distributed on the surface of the medicine grinding plate 3.
The end face of the medicine grinding plate 3 facing the push tube 2 is fixedly connected with a silk screen layer 16, and meshes of the silk screen layer 16 are smaller than the liquid through holes 20.
The wire mesh layer 16 is made of stainless steel wires.
The medicine grinding plate 3 is provided with a thread groove 23 corresponding to the pull rod 7, and the pull rod 7 is provided with a matched external thread A corresponding to the thread groove A23.
The one end coaxial fixedly connected with handheld pole 24 that the pull rod 7 kept away from the medicine grinding board 3, handheld pole 24 external diameter is less than the internal diameter of syringe 6 to handheld pole 24's surface evenly is equipped with the anti-skidding line.
When the clamping strips 22 of the medicine grinding plate 3 are contacted with the clamping grooves 21, the handheld rod 24 extends out of the injection tube 6.
The utility model provides a syringe, including ejector sleeve 2, connecting sleeve, ejector sleeve 2 is equipped with the lateral surface of the terminal surface of ejector sleeve 2, the pipe wall that corresponds ejector sleeve 2 is equipped with spacing bulge loop 28, the inner wall laminating of spacing bulge loop 28 is equipped with adapter sleeve 30, the lateral wall of spacing bulge loop 28 is equipped with a plurality of axial grooves 34 along the axial, axial groove 34 extends to the pipe wall of ejector sleeve 2, axial groove 34 regards the axle center of ejector sleeve 2 as the evenly distributed, one side border that spacing bulge loop 28 was facing away from ejector sleeve 2, the position department that corresponds axial groove 34 is equipped with spacing groove 36, one side border that adapter sleeve 30 was facing away from ejector sleeve 2, the position department that corresponds spacing groove 36 outwards is equipped with turn-ups 31, turn-ups 31 correspond axial groove 34 position department and be equipped with the connection piece 19 that matches, the lateral wall of connection piece 19 and the lateral wall of spacing bulge loop 28 are equipped with the external screw thread B27 that matches, the cover mouth end of shroud 9 inner wall and the open end of syringe 1 inner wall correspond to external screw thread B27 and are equipped with the screw thread groove B and thread C35 that matches respectively.
A sealing plug 29 matched with the inner diameter of the liquid suction pipe 8 is fixedly arranged in the center of the cover 9.
A pair of side baffles A25 are symmetrically and fixedly connected to the outer side wall of the injection tube 1 and the opposite sides corresponding to the open end, and a pair of side baffles B26 are symmetrically and fixedly connected to the outer side wall of the push tube 2 and the opposite sides corresponding to the end of the liquid suction tube 8; when the axial groove 34 is correspondingly positioned in the range of the side baffle B26, the side baffle B26 is correspondingly provided with a through-piece hole 33 matched with the connecting piece 19 corresponding to the axial groove 34; when the axial groove 34 is located on one side of the side baffle plate B26 and partially overlaps the side baffle plate B26, the side baffle plate B26 is provided with a notch 37 matching with the connecting piece 19 corresponding to the partially overlapping portion of the axial groove 34.
The connecting line of the side baffle A25 is perpendicular to the connecting line of the side baffle B26; or the connecting line of the side baffle A25 is parallel to the connecting line of the side baffle B26, and the distance between the outer edge of the side baffle B26 and the axis is larger than the distance between the outer edge of the side baffle A25 and the axis.
When the push tube 2 moves downwards to the maximum travel, the end of the push tube 2 facing the injection tube 6 presses the medicine grinding plate 3 at the end of the injection tube 1 provided with the injection tube 6, at this time, the plug body 4 moves into the push tube 2 to be attached to the end of the push tube 2 provided with the liquid suction tube 8, and a space is arranged between the push plate B26 and the push plate A25.
The clamping strips 22 are matched with the fixed clamping grooves 21 in a clamping and fixing mode.
The plug body 4 is detachably and fixedly connected with the axle center rod 5.
The push tube 2 comprises two matched push tube groove units which are detachably, hermetically and fixedly connected.
The sealing fixed connection part of the push tube groove unit is positioned at one side of the sealing ring A10 of the push tube 2, which is back to the injection tube 6.
The end of the clamping groove 21 facing the injection tube 6 is communicated with an upper opening in the injection tube 6.
As can be seen from fig. 4 to 17, when the drug grinding device is used in the application, the push tube 2, the plug body 4 and the axial rod 5 and the drug grinding plate 3 and the pull rod 7 are correspondingly connected respectively, and the plug body 4 is positioned at one end of the push tube 2 facing the drug grinding plate 3; then the connecting sleeve 30 is correspondingly connected with the inner wall of the limiting convex ring 28, the connecting sheet 19 of the connecting sleeve 30 is opposite to the axial groove 34, the connecting sleeve is moved to the direction facing the push tube 2 until the flange 31 is limited and fixed in the limiting groove 36, then the connecting sleeve 30 and the connecting sheet 19 are fixed with the push tube 2 through the thread groove B of the cover 9 and the external thread B27 of the part of the limiting convex ring 28 above the baffle B26 and the external thread B27 of the connecting sheet 19, and the liquid suction tube 8 is sealed and sealed through the sealing plug 29 of the cover 9; then the medicine grinding plate 3 and the pushing tube 2 are vertically placed in the direction from bottom to top, and the tablets are placed on the medicine grinding plate 3, and then the medicine grinding plate 3 and the pushing tube 2 fixed with the pull rod 7 are sequentially extended into the injection tube 1 from top to bottom from the open end of the injection tube 1; the clamping strip 22 at the bottom of the medicine grinding plate 3 is contacted with one end of the injection tube 1 provided with the injection tube 6 by pressing the cover cap 9, at the moment, the hand-held rod 24 of the pull rod 7 extends downwards from the injection tube 6, and then the clamping strip 22 corresponds to the clamping groove 21 by rotating the hand-held rod 24.
The push tube 2 is pressed downwards through the cover cap 9, so that the push tube 2 is pressed on the medicine grinding plate 3 with the tablets, the tablets on the medicine grinding plate 3 are primarily ground, and the clamping strips 22 and the clamping grooves 21 are clamped and fixed after the medicine grinding plate 3 is subjected to the pressure of the push tube 2; when the cover 9 moves downwards until the external thread B27 of the connecting sheet 19 positioned at the lower part of the baffle B26 contacts with the thread groove C35, the push tube 2 is rotated to enable the push tube 2 to continuously move downwards along the injection tube 1 under the action of the external thread B27 and the thread groove C35, so that the push tube 2 continuously rolls and grinds the tablets on the medicine grinding plate 3 into powder; in the above process, the distance of the axial movement of the medicine grinding plate 3 along the injection tube 1 is only the distance that the clamping strip 22 is clamped into the clamping groove 21, and the pushing tube 2 moves downwards to grind the tablet positioned on the medicine grinding plate 3, so that the axial movement distance of the pushing tube 2 relative to the injection tube 1 is larger, the plug body 4 fixed relative to the medicine grinding plate 3 moves upwards relative to the pushing tube 2 by a larger distance, thereby reducing the volume of the cavity C18 and increasing the volume of the cavity B17, and due to the action of the check valve B14 arranged on the plug body 4, air in the cavity C18 enters the cavity B17 through the check valve B14 in the process of reducing the volume of the cavity C18 and increasing the volume of the cavity B17.
In the process, the pull rod 7 and the medicine grinding plate 3 can be driven to move downwards by the handheld rod 24, so that the clamping strips 22 of the medicine grinding plate 3 are clamped and fixed with the clamping grooves 21; then the push tube 2 is pressed downwards through the cover cap 9, so that the push tube 2 is pressed on the medicine grinding plate 3 with the medicine tablets, and the medicine tablets on the medicine grinding plate 3 are primarily ground; when the cover 9 moves downwards until the external thread B27 of the connecting sheet 19 positioned at the lower part of the baffle B26 is in contact with the thread groove C35, the push tube 2 is rotated to enable the push tube 2 to continuously move downwards along the injection tube 1 under the action of the external thread B27 and the thread groove C35, so that the push tube 2 is enabled to continuously grind and grind the tablets on the medicine grinding plate 3 into powder. In the above process, the distance of the axial movement of the medicine grinding plate 3 along the injection tube 1 is only the distance that the clamping strip 22 is clamped into the clamping groove 21, and the pushing tube 2 moves downwards to grind the tablet positioned on the medicine grinding plate 3, so that the axial movement distance of the pushing tube 2 relative to the injection tube 1 is larger, the plug body 4 fixed relative to the medicine grinding plate 3 moves upwards relative to the pushing tube 2 by a larger distance, thereby reducing the volume of the cavity C18 and increasing the volume of the cavity B17, and due to the action of the check valve B14 arranged on the plug body 4, air in the cavity C18 enters the cavity B17 through the check valve B14 in the process of reducing the volume of the cavity C18 and increasing the volume of the cavity B17.
Then the cover cap 9 is separated from the limit convex ring 28 and the connecting sheet 19, the push tube 2 is communicated with the outside through the liquid suction tube 8, the push tube 2 is reversely rotated through the baffle B26, the connecting sheet 19 is separated from the injection tube 1, and the connecting sheet 19 is separated from the limit convex ring 28; in this process, due to the action of the check valve a13 and the check valve B14, the volume of the cavity C18 increases, the external air enters the cavity C18 through the pipette 8, the volume of the cavity B17 decreases, and the air in the cavity B17 enters the cavity a15 with the increased volume through the check valve a 13.
Then the pushing tube 2 is downwards moved to the maximum travel position again through the baffle B26, so that the drug powder on the drug grinding plate 3 is ground again by the returning switch; in the process, due to the action of the check valve A13 and the check valve B14, the volume of the cavity C18 is reduced, and air in the cavity C18 enters the cavity B17 with the enlarged volume through the check valve B14; the air in the cavity a15 is discharged through the syringe.
Inverting the syringe 1 after the needle is sleeved on the pipette 8; the syringe 1 is moved away from the push tube 2 under the action of the baffle B26 and the baffle A25, and the medicine grinding plate 3 is fixedly connected with the syringe 1 through the clamping strip 22 and the clamping groove 21, and the medicine grinding plate 3 is fixedly connected with the plug body 4 in the push tube 2, so that when the syringe 1 moves away from the push tube 2, the plug body 4 also moves away from the liquid suction tube 8 relative to the push tube 2, so that the volume of the cavity A15 and the volume of the cavity C18 are gradually increased, and negative pressure is formed in the cavity A15 and the cavity C18 under the action of the one-way valve A13 of the push tube 2 and the one-way valve B14 arranged in the plug body 4, and the cavity A15 sucks external air into the cavity A15 through the injection tube 6, and meanwhile, the liquid medicine with the needle is sucked into the cavity C18 in the push tube 2; when the stopper 4 is moved to a position away from the pipette 8 to a maximum stroke, the volume of the cavity C18 is maximized, and the cavity C18 is filled with the liquid medicine.
Then the liquid suction pipe 8 is separated from the needle head, the cover cap 9 is directly and fixedly connected with the limit convex ring 28 only, and the liquid suction pipe 8 is sealed; then by pressing the cover 9 to the maximum stroke, the volumes of the cavity A15 and the cavity C18 are reduced to the minimum, the volume of the cavity B17 is increased to the maximum, the liquid medicine in the cavity C18 can only enter the cavity B17 with the increased volume through the one-way valve B14 in the process of reducing the volume of the cavity C18 due to the sealing of the liquid suction pipe 8, and the air in the cavity A15 can only be discharged to the outside through the injection pipe 6 under the action of the one-way valve A13 arranged on the push pipe 2.
The syringe 1 is restored to the downward placement state of the syringe 6, the cover 9 is separated from the annular bulge 28, the cavity C18 is communicated with the outside through the liquid suction pipe 8 again, the push pipe 2 moves upwards relative to the syringe 1 under the action of the baffle B26, at the moment, the volumes of the cavity A15 and the cavity C18 are increased, the volume of the cavity B17 is reduced, and due to the action of the check valve A13 and the check valve B14, the liquid medicine with the small volume in the cavity B17 directly enters the cavity A15, and the external air is sucked into the cavity C18 through the liquid suction pipe 8.
After the liquid medicine is in the cavity A15, fixing the cover cap 9 with the annular bulge 28 again, and then fully shaking the injection cylinder 1 so as to fully mix and dissolve the liquid medicine in the cavity A15 and the crushed medicinal powder; after the medicine powder and the medicine liquid are fully mixed and dissolved, the hand-held rod 24 is rotated to drive the pull rod 7 to be separated from the medicine grinding plate 3, and then the medicine is taken out from the injection tube 6, and the injection tube 6 is communicated and connected with the cannula; the push tube 2 is driven to move downwards to the maximum stroke by pressing the cover cap 9, at the moment, the volume of the cavity A15 and the volume of the cavity C18 are reduced, the volume of the cavity B17 is increased, and under the action of the one-way valve A13 and the one-way valve B14, the liquid medicine in the cavity A15 is directly injected into the cannula through the injection tube 6 to realize medicine feeding, and the air in the cavity C18 enters into the upper part in the cavity B17 and fills the volume space increased by the cavity B17.
Then the cover 9 is separated from the annular bulge 28, the cavity C18 is communicated with the outside through the liquid suction pipe 8 again, the push pipe 2 moves upwards relative to the injection cylinder 1 under the action of the baffle B26, at the moment, the volumes of the cavity A15 and the cavity C18 are increased, the volume of the cavity B17 is reduced, and due to the action of the one-way valve A13 and the one-way valve B14, the liquid medicine at the inner bottom of the cavity B17 directly enters the cavity A15, and the outside air is sucked into the cavity C18 through the liquid suction pipe 8.
After the cavity A15 contains the medicine liquid, fixing the cover cap 9 with the annular bulge 28 again, and gently shaking the injection tube 1 to fully mix and dissolve the medicine liquid in the cavity A15 and the residual medicine powder; after the medicine powder and the medicine liquid are fully mixed and dissolved, the push tube 2 is driven to move downwards to the maximum stroke by pressing the cover 9, at the moment, the volume of the cavity A15 and the volume of the cavity C18 are reduced, the volume of the cavity B17 is increased, under the action of the one-way valve A13 and the one-way valve B14, the medicine liquid in the cavity A15 is directly injected into the cannula through the injection tube 6 to realize medicine feeding, and the air in the cavity C18 enters into the upper part in the cavity B17 and fills the volume space increased by the cavity B17.
Then the cover 9 is separated from the annular bulge 28, the cavity C18 is communicated with the outside through the liquid suction pipe 8 again, the push pipe 2 moves upwards relative to the injection cylinder 1 under the action of the baffle B26, at the moment, the volumes of the cavity A15 and the cavity C18 are increased, the volume of the cavity B17 is reduced, and due to the action of the one-way valve A13 and the one-way valve B14, the liquid medicine at the inner bottom of the cavity B17 directly enters the cavity A15, and the outside air is sucked into the cavity C18 through the liquid suction pipe 8.
After the liquid medicine is again contained in the cavity A15, the cover cap 9 is fixed with the annular bulge 28 again, and then the syringe 1 is flicked by a plurality of fingers, so that the liquid medicine in the cavity A15 and the residual medicine powder are fully mixed and dissolved; after the medicine powder and the medicine liquid are fully mixed and dissolved, the push tube 2 is driven to move downwards to the maximum stroke by pressing the cover 9, at the moment, the volume of the cavity A15 and the volume of the cavity C18 are reduced, the volume of the cavity B17 is increased, under the action of the one-way valve A13 and the one-way valve B14, the medicine liquid in the cavity A15 is directly injected into the cannula through the injection tube 6 to realize medicine feeding and washing of the cannula, and air in the cavity C18 enters into the upper part in the cavity B17 and fills the volume space increased by the cavity B17.
The cover 9 is separated from the annular bulge 28, the cavity C18 is communicated with the outside through the liquid suction pipe 8 again, the push pipe 2 moves upwards relative to the injection cylinder 1 under the action of the baffle B26, at the moment, the volumes of the cavity A15 and the cavity C18 are increased, the volume of the cavity B17 is reduced, and due to the action of the one-way valve A13 and the one-way valve B14, liquid medicine in the inner bottom of the cavity B17 directly enters the cavity A15, and external air is sucked into the cavity C18 through the liquid suction pipe 8.
After the rest of the liquid medicine finally exists in the cavity A15, fixing the cover cap 9 with the annular bulge 28 again, and then flicking the syringe 1 a plurality of times, so that the liquid medicine in the cavity A15 washes the cavity A15; after the cavity A15 is fully washed by the liquid medicine, the push tube 2 is driven to move downwards to the maximum stroke by pressing the cover 9, at the moment, the volume of the cavity A15 and the volume of the cavity C18 are reduced, the volume of the cavity B17 is increased, the liquid medicine in the cavity A15 is directly injected into the cannula through the injection tube 6 under the action of the one-way valve A13 and the one-way valve B14 to realize washing of the cannula, and air in the cavity C18 enters into the upper part in the cavity B17 and fills the volume space increased by the cavity B17.
Claims (5)
1. The medicine feed ware that cartridge was used, its characterized in that: comprises a syringe (1) and a matched pushing tube (2), wherein one end of the syringe (1) is provided with the syringe (6) and the other end is open, the pushing tube (2) extends into the syringe (1) from the open end and is in axially reciprocating movable connection along the syringe (1), the pushing tube (2) is a hollow tube, a cavity A (15) is formed between the pushing tube (2) and the end of the syringe (6) in the syringe (1), a matched plug body (4) is axially reciprocating movable connected along the pushing tube (2) in the pushing tube (2), the plug body (4) divides the pushing tube (2) into a cavity B (17) facing one side of the syringe (6) and a cavity C (18) facing away from the syringe (6), the end face of the plug body (4) facing the cavity B (17) is coaxially fixedly connected with an axle center rod (5), one end of the axle center rod (5) extends out of the pushing tube (2) into the cavity A (15) and is fixedly connected with a back plate (3) facing the end face of the syringe (6) and is ground into the end face of the syringe (6), the end face of the medicine grinding plate (3) facing the injection tube (6) corresponds to a pull rod (7) which is detachably and fixedly connected with the injection tube (6) and is used for extending out of the injection tube (6), the medicine grinding plate (3) is provided with an end face of the pull rod (7), the periphery of the pull rod (7) is provided with a clamping strip (22) which is radially arranged, the inner wall of the end face of the injection tube (6) of the injection tube (1) is provided with a clamping groove (21) which is matched and fixed with the clamping strip (22), the end face of the push tube (2) facing away from the injection tube (6) is communicated with a liquid suction tube (8), the end face of the push tube (2) facing away from the injection tube (6) is also detachably and fixedly connected with a cover cap (9) which is used for sealing the liquid suction tube (8), the end face of the push tube (2) is provided with a one-way valve A (13) which is communicated with a cavity A (15) from a cavity B (17), the plug body (4) is provided with a one-way valve B (14) which is communicated with a cavity C (18) to the cavity B (17), and when the end face of the push tube (2) facing away from the injection tube (6) is positioned outside the injection tube (1) of the injection tube (1);
the outer side wall of the push tube (2) is fixedly connected with a sealing ring A (10) matched with the inner wall of the injection tube (1), the outer side wall of the plug body (4) is fixedly connected with a sealing ring B (11) matched with the inner wall of the push tube (2), and a sealing ring C (12) matched with the axle center rod (5) is arranged on the end face of one end of the push tube (2) facing the cavity A (15) and corresponding to the inner wall of the rod penetrating hole of the axle center rod (5);
the bottom center of the medicine grinding plate (3) is a flat plate vertical to the axle center rod (5), the edge of the flat plate is inclined to one side of the push tube (2) along the direction from inside to outside to form a groove structure, and liquid through holes (20) are uniformly distributed on the surface of the medicine grinding plate (3);
the injection tube comprises a push tube (2), wherein the push tube (2) is provided with an outer side face of the end face of the liquid suction tube (8), a limiting convex ring (28) is arranged on the tube wall corresponding to the push tube (2), a connecting sleeve (30) is arranged on the inner wall of the limiting convex ring (28) in a fitting mode, a plurality of axial grooves (34) are formed in the outer side wall of the limiting convex ring (28) along the axial direction, the axial grooves (34) extend to the tube wall of the push tube (2), the axial grooves (34) are uniformly distributed by taking the axis of the push tube (2) as the center, a limiting groove (36) is formed in the position, corresponding to the axial grooves (34), of the limiting convex ring (28), a flange (31) is outwards arranged on the side edge, corresponding to the limiting groove (36), of the flange (31), a matched connecting piece (19) is arranged on the outer side wall of the connecting piece (19), a matched outer thread B (27) is arranged on the outer side wall of the limiting convex ring (28), and a cover cap (9) is provided with a matched thread B (27), and the thread C is correspondingly arranged on the inner wall of the injection tube (27) and the threaded port (35B) of the injection tube (1);
a sealing plug (29) matched with the inner diameter of the liquid suction pipe (8) is fixedly arranged in the center of the cover cap (9);
a pair of side baffles A (25) are symmetrically and fixedly connected to the outer side wall of the injection tube (1) and the opposite sides corresponding to the open end, and a pair of side baffles B (26) are symmetrically and fixedly connected to the outer side wall of the push tube (2) and the opposite sides corresponding to the end where the liquid suction tube (8) is positioned; when the axial groove (34) is correspondingly positioned in the range of the side baffle B (26), the side baffle B (26) is provided with a through-piece hole (33) matched with the connecting piece (19) corresponding to the axial groove (34); when the axial groove (34) is correspondingly positioned on one side of the side baffle B (26) and is partially overlapped with the side baffle B (26), the side baffle B (26) is provided with a notch (37) matched with the connecting sheet (19) corresponding to the part partially overlapped with the axial groove (34).
2. A cannula feeder according to claim 1, wherein: the end face of the medicine grinding plate (3) facing the push tube (2) is fixedly connected with a silk screen layer (16), and meshes of the silk screen layer (16) are smaller than the liquid through holes (20).
3. A cannula feeder according to claim 2, wherein: the medicine grinding plate (3) is provided with a thread groove A (23) corresponding to the pull rod (7), and the pull rod (7) is provided with a matched external thread A corresponding to the thread groove A (23).
4. A cannula feeder according to claim 1, wherein: one end of the pull rod (7) far away from the medicine grinding plate (3) is coaxially and fixedly connected with a handheld rod (24), the outer diameter of the handheld rod (24) is smaller than the inner diameter of the injection tube (6), and anti-skidding patterns are uniformly formed on the surface of the handheld rod (24).
5. A cannula feeder according to claim 4, wherein: when the clamping strips (22) of the medicine grinding plate (3) are contacted with the clamping grooves (21), the handheld rod (24) extends out of the injection tube (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110983489.9A CN113662856B (en) | 2021-08-25 | 2021-08-25 | Medicine feeder for insertion tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110983489.9A CN113662856B (en) | 2021-08-25 | 2021-08-25 | Medicine feeder for insertion tube |
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| Publication Number | Publication Date |
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| CN113662856A CN113662856A (en) | 2021-11-19 |
| CN113662856B true CN113662856B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110983489.9A Active CN113662856B (en) | 2021-08-25 | 2021-08-25 | Medicine feeder for insertion tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113952232B (en) * | 2021-12-23 | 2022-03-01 | 潍坊医学院附属医院 | Medicine feeder with medicine grinding function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0417988A1 (en) * | 1989-09-12 | 1991-03-20 | F.H. FAULDING & CO. LTD. | Bipartite injector device |
| CN204468731U (en) * | 2015-02-27 | 2015-07-15 | 李景华 | A kind of critically ill patient medicine feed device |
| CN109549854A (en) * | 2019-01-18 | 2019-04-02 | 杨建梅 | A kind of internal medicine nursing medicine-feeding device |
| CN112472922A (en) * | 2021-01-19 | 2021-03-12 | 淮安市第一人民医院 | Syringe with grind function of mixing medicine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3750580A1 (en) * | 2019-06-13 | 2020-12-16 | SCHOTT Schweiz AG | Container which is prefilled or can be prefilled with a fluid and cannula assembly and closure system for same |
-
2021
- 2021-08-25 CN CN202110983489.9A patent/CN113662856B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0417988A1 (en) * | 1989-09-12 | 1991-03-20 | F.H. FAULDING & CO. LTD. | Bipartite injector device |
| CN204468731U (en) * | 2015-02-27 | 2015-07-15 | 李景华 | A kind of critically ill patient medicine feed device |
| CN109549854A (en) * | 2019-01-18 | 2019-04-02 | 杨建梅 | A kind of internal medicine nursing medicine-feeding device |
| CN112472922A (en) * | 2021-01-19 | 2021-03-12 | 淮安市第一人民医院 | Syringe with grind function of mixing medicine |
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