CN112022701B - Medicine liquid conveying device for clinical medical treatment - Google Patents
Medicine liquid conveying device for clinical medical treatment Download PDFInfo
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- CN112022701B CN112022701B CN202011013231.8A CN202011013231A CN112022701B CN 112022701 B CN112022701 B CN 112022701B CN 202011013231 A CN202011013231 A CN 202011013231A CN 112022701 B CN112022701 B CN 112022701B
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- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 239000003814 drug Substances 0.000 title claims abstract description 27
- 229940079593 drug Drugs 0.000 title description 2
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 38
- 230000007246 mechanism Effects 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 11
- 239000003550 marker Substances 0.000 description 9
- 230000009471 action Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 235000014676 Phragmites communis Nutrition 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
-
- 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
- A61J1/202—Separating means
- A61J1/2037—Separating means having valve 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
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2048—Connecting 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
- A61J1/2089—Containers or vials which are to be joined to each other in order to mix their contents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Pharmacology & Pharmacy (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a medical liquid conveying device for clinical treatment, wherein a section of hard control pipe section is arranged on a rubber pipe, a liquid guide hole communicated with the rubber pipe is arranged in the control pipe section, one side of the control pipe section is fixedly connected with a mounting pipe, one end of the mounting pipe is opened, and the other end of the mounting pipe is closed; the valve plate includes integrative slider and the slide that links to each other, and the elastic ball of drive slide includes left spherical shell and right spherical shell, and right spherical shell adopts elastic material to make, and left spherical shell is made and towards the opening has been seted up to the one end of slide, and vertical rigid coupling has the installation pole in the left spherical shell, and the vertical rigid coupling has a horizontal ram on the installation pole, is equipped with parallelogram four-bar linkage in the right spherical shell, and two articulated joints about four-bar linkage connect respectively at the interior roof and the interior bottom wall of right spherical shell, and its left and right articulated joint is located respectively in the bar inslot and can slide at the bar inslot straight line. The liquid medicine conveying device for clinical medical treatment is extremely convenient to use, has double valve control, and can also prevent accidental liquid leakage.
Description
Technical Field
The present invention relates to a medical supply device, and more particularly, to a medical liquid delivery device for clinical medical use.
Background
In clinical medicine, it is often necessary to inject some of the liquid medicine into a human body or a medicine bottle through a liquid medicine delivery device for clinical medicine. At present, the clinical medical medicine liquid conveying device generally discharges all medicine liquid at one time when in use, and the mode of rotating a knob cover on a valve is generally adopted when the clinical medical medicine liquid conveying device is opened and closed, or the mode of rolling and extruding a transfusion tube like a cylindrical roller on a transfusion tube is adopted for closing, the operation of the writing control mode needs to continuously stir the roller, the operation is relatively complex, the opening and closing of the clinical medical medicine liquid conveying device is not timely enough, and a greater problem is that the transfusion tube of the clinical medical medicine liquid conveying device is generally smaller, the knob cover is correspondingly made very small, and the hand is harder to pinch, twist or stir. Therefore, the conventional medical fluid delivery device for clinical treatment is inconvenient in terms of both switching operation and flow rate adjustment.
Disclosure of Invention
The invention aims to solve the problems of the prior art, such as inconvenient switching and flow regulation of the clinical medical liquid conveying device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a clinical medical medicine liquid conveying device, includes the rubber tube that is used for carrying the liquid medicine, have one section stereoplasm control tube section on the rubber tube, control tube section is interior to have the drain hole that communicates with the rubber tube, control tube section one side rigid coupling has the installation pipe, this installation pipe one end is opened and cover and be fixed with it on control tube section's lateral wall, the other end is sealed;
the valve plate comprises a sliding block and a sliding plate which are integrally connected, the sliding block is installed in the installation pipe in a sliding fit manner, a pressure spring which is always in a compressed state is connected between the sliding block and the closed end of the installation pipe, the sliding plate penetrates through the control pipe section in a sliding and sealing manner in the radial direction, a valve hole is formed in the middle of the sliding plate, and the pressure spring pushes the sliding plate to a position where the valve hole and the liquid guide hole are completely staggered in a natural state; one end of the sliding plate, which is away from the sliding block, is provided with a gas collecting hole with a blind hole structure, the orifice of the gas collecting hole penetrates out of the control pipe section, an elastic ball is fixedly connected on the outer wall of the control pipe section around the orifice, and the orifice is communicated with the inside of the elastic ball; the elastic ball comprises a left ball shell and a right ball shell, wherein the right ball shell is made of elastic materials, the left ball shell is made of hard materials, a notch is formed towards one end of the sliding plate, an installation rod is vertically and fixedly connected in the left ball shell, a horizontal ram is vertically and fixedly connected on the installation rod, the horizontal ram horizontally extends towards one side away from the sliding plate, and a strip groove is formed in the horizontal ram along the axial direction of the horizontal ram; the four-bar mechanism is characterized in that a parallelogram-shaped four-bar mechanism is arranged in the right spherical shell, an upper hinge point and a lower hinge point of the four-bar mechanism are respectively connected with the inner top wall and the inner bottom wall of the right spherical shell, the left hinge point and the right hinge point of the four-bar mechanism are respectively positioned in the strip groove and can linearly slide in the strip groove, and the hinge point at the left end is connected with the free end of the sliding plate through a connecting rod passing through the opening, so that when the four-bar mechanism is extruded from the upper side and the lower side, the sliding plate slides towards one side of the mounting tube.
Further, the sliding plate is of a rectangular strip plate structure, and rectangular sealing rings are respectively embedded in the upper side wall and the lower side wall of a sliding hole for sliding fit of the sliding plate on the pipe wall of the control pipe section, and the center of each sealing ring is positioned on the axis of the liquid guide hole.
Further, the sliding plate is a strip-shaped plate made of polytetrafluoroethylene.
Further, the sealing plug is a screw plug structure which is installed in the outlet end of the liquid guide hole in a pluggable manner.
Further, one end of a guide rod is fixedly connected at the free end of the sliding block, the other end of the guide rod passes through the closed end of the mounting tube in a sliding fit manner and then extends out of the mounting tube, and a pull ring is connected to the extending end of the guide rod; the pressure spring is a conical spring, the large end of the pressure spring is coaxially fixed on the closed end of the mounting tube, and the small end of the pressure spring is coaxially connected with the free end of the guide rod.
Compared with the prior art, the invention has the following beneficial effects: firstly, the sliding plate of the rubber tube for controlling and conveying the liquid medicine is smaller, the sliding plate is arranged at the control tube section on the rubber tube, the size of the control tube section can be as thick as that of the rubber tube, then the structure of the control valve formed by the sliding plate can be arranged at the outlet end close to the rubber tube, so that medical staff can conveniently and timely open and close when the outlet end of the rubber tube is connected with a medicine bottle or inserted into a human body, especially, the effect is more outstanding when the medicine bottle is connected, the medical staff does not need to take the medicine bottle by one hand, and the other hand can remotely open and close the valve on the liquid medicine storage tank or control the flow rate by adjusting, so that the sliding plate is quite convenient. In addition, for the action of a switch and flow control adjustment, the extrusion action mode of holding the elastic ball is certainly simpler and more convenient than a rotary knob or a continuous roller stirring mode, when the elastic ball is held, the four-bar mechanism is flattened to push the sliding plate to move, on one hand, the driving force of the screw rod mechanism is mainly used for adjusting the position of the sliding plate, and on the other hand, the air in the elastic ball is compressed to a certain extent, and the sliding plate can be pushed after passing through the notch of the left spherical shell to assist in controlling the movement of the sliding plate, so that the elastic ball is particularly suitable for controlling the thick sliding plate used when the flow is large.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present invention;
FIG. 2 is an enlarged view of the mounting tube of FIG. 1;
FIG. 3 is a schematic diagram of the mating structure of a marker post and a reference post on a mounting tube;
FIG. 4 is a schematic view of a structure of the hinge shaft and one of the horizontal rams at the left and right hinge points of the four-bar mechanism;
fig. 5 is a schematic view of a compression device for the elastic ball.
The control pipe section 1, the sliding plate 2, the mounting pipe 3, the sliding block 4, the guide rod 5, the pull ring 6, the sealing plug 7, the elastic ball 8, the left spherical shell 801, the right spherical shell 802, the gas collecting hole 9, the valve hole 10, the sealing ring 11, the marker post 12, the reference rod 13, the sponge block 14, the pressure spring 15, the magnetic block 16, the rubber pipe 17, the bolt 18, the vent hole 19, the four-bar mechanism 20, the connecting rod 21, the mounting rod 22, the horizontal cantilever rod 23, the positioning rod 24, the limiting column 25, the hinge shaft 26, the pressing plate 210, the reed 220, the connecting plate 230, the top spring 240, the blind cavity 2301 and the annular groove 20201.
Description of the embodiments
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present invention more clear and easy to understand, the present invention is further described below with reference to the accompanying drawings and the detailed description:
as shown in fig. 1, the present embodiment proposes a medical fluid delivery device for clinical medical use, including a hose 17 for delivering a medical fluid, the hose 17 being connected to a reservoir tank for the medical fluid. The rubber tube 17 is provided with a section of hard control tube section 1, the control tube and the rubber tube 17 are integrally formed, the hardness is proper to be slightly hard, and the thickness is consistent with the rubber tube 17. The control pipe section 1 is internally provided with a liquid guide hole communicated with the rubber pipe 17, one side of the control pipe section 1 is fixedly connected with a mounting pipe 3, one end of the mounting pipe 3 is opened and covered on the outer side wall of the control pipe section 1 to be fixed with the outer side wall, and the other end of the mounting pipe is closed. Meanwhile, the embodiment further comprises a valve plate, the valve plate comprises a sliding block 4 and a sliding plate 2 which are integrally connected, the sliding block 4 is installed in the installation pipe 3 in a sliding fit manner, and a pressure spring 15 which is always in a compressed state is connected between the sliding block 4 and the closed end of the installation pipe 3, so that pushing pressure is always applied to the sliding block 4 towards the inner side direction of the control pipe section 1. The sliding plate 2 penetrates through the control pipe section 1 in a sliding and sealing manner along the radial direction, a valve hole 10 is formed in the middle of the sliding plate 2, and in a natural state, the pressure spring 15 pushes the sliding plate 2 to a position where the valve hole 10 and the liquid guide hole are completely staggered, so that a normally closed structure in the control pipe section 1 of the rubber pipe 17 is realized, the normally closed structure is opened when required, and the liquid medicine is particularly suitable for frequent and progressive addition. Preferably, in a specific implementation, one end of the sliding plate 2 facing away from the sliding block 4 may be provided with a gas collecting hole 9 with a blind hole structure, the gas collecting hole 9 is preferably made into a conical hole shape, a hole opening at the large end of the gas collecting hole 9 penetrates out of the control pipe section 1, an elastic ball 8 is fixedly connected to the outer wall of the control pipe section 1 around the hole opening, namely, the outer wall of the control pipe section 1 at the free end of the sliding plate 2, the elastic ball 8 comprises a left spherical shell 801 and a right spherical shell 802, the right spherical shell 802 is made of an elastic material, the left spherical shell 801 is made of a hard material and is provided with a notch towards one end of the sliding plate 2, a mounting rod 22 is vertically fixedly connected in the left spherical shell 801, a horizontal cantilever 23 is horizontally extended towards one side facing away from the sliding plate 2, and a strip groove is axially arranged on the horizontal cantilever 23; the right spherical shell 802 is internally provided with a parallelogram-shaped four-bar mechanism 20, the upper and lower hinge points of the four-bar mechanism 20 are respectively connected with the inner top wall and the inner bottom wall of the right spherical shell 802, the left and right hinge points of the four-bar mechanism are respectively positioned in the strip groove and can linearly slide in the strip groove, and the hinge point at the left end is connected with the free end of the sliding plate 2 through a connecting rod 21 penetrating through the opening, so that when the four-bar mechanism 20 is extruded from the upper and lower sides, the sliding plate 2 slides towards one side of the mounting tube 3.
When the hydraulic control valve is used, when the elastic ball 8 is held by hand to squeeze, the connecting rod 21 pushes the sliding plate 2 to move towards one side of the mounting pipe 3, so that the valve hole 10 is completely opposite to the liquid guide hole, the timely opening of the control pipe section 1 is realized, and the area of the mutual crossed overlapping between the valve hole 10 and the liquid guide hole is increased or decreased in the process of squeezing or loosening the elastic ball 8, so that the flow regulation effect is realized.
As a specific implementation detail, one end of a guide rod 5 is fixedly connected at the free end of the sliding block 4, the other end of the guide rod 5 passes through the closed end of the mounting tube 3 in a sliding fit manner and then extends out of the mounting tube 3, and a pull ring 6 is connected to the extending end of the guide rod, so that when the elastic ball 8 fails or the sliding plate 2 needs to be controlled to move very quickly, the sliding plate 2 is pulled to move by hooking the pull ring 6 by a finger, and a dual control mechanism of pneumatic and manual lifting of the sliding plate 2 is realized.
Preferably, in the process of manufacturing, as shown in fig. 2, a strip hole is formed on the pipe wall on one side of the mounting pipe 3 along the length direction of the mounting pipe, the strip hole is processed into a rectangle, one end of the strip hole near the free end of the mounting pipe 3 is provided with a reference rod 13, and the reference rod 13 is fixed on the outer surface of the pipe wall of the mounting pipe 3. The sliding block 4 is fixedly connected with a marker post 12 extending out of the strip hole, when the sliding block 4 slides in the mounting pipe 3, the valve hole 10 and the liquid guide hole are completely staggered and are not intersected when the marker post 12 reaches the position of the reference rod 13, so that an objective judgment standard is formed, an operator can determine the opening and closing amount of the control pipe section 1 according to the positions of the marker post 12 and the reference rod 13, and a series of scale marks can be arranged on the strip hole along the length direction of the strip hole to represent the flow rate when corresponding scale positions. On the basis of the structure, further, two rectangular sponge blocks 14 are respectively embedded in two opposite side walls of the strip hole, and the marker post 12 extends out of the mounting tube 3 after being extruded from between the two sponge blocks 14 so as to seal and protect the inside of the mounting tube 3 and prevent a large amount of dust from entering.
Details of another embodiment: the mounting tube 3, the sliding block 4, the marker post 12 and the reference rod 13 are all plastic parts, and as shown in fig. 2-3, the marker post 12 and the reference rod 13 are all in an inverted L-shaped structure, the horizontal sections at the top ends of the marker post 12 and the reference rod 13 are opposite to each other and are embedded with a magnetic block 16, the opposite sides of the two magnetic blocks 16 are opposite to each other, and the magnetic attraction force between the two magnetic blocks 16 must be such that the two magnetic blocks 16 can be separated from each other under the action of the elastic restoring force of the pressure spring 15 when the elastic ball 8 is released. The structure has obvious effect, the convenience of control of the invention is further improved, when the device is used, the elastic ball 8 is pressed to push the sliding plate 2 to move, the sliding plate 2 slides closer to one side of the mounting tube 3, the attractive force between the two magnetic blocks 16 is larger, the moving trend of the sliding plate 2 pushed by the magnetic attractive force is more obvious, the defect that the elastic ball 8 is more difficult to compress when the elastic ball 8 is compressed to the later stage is overcome, and the moving process of the whole sliding plate 2 controlled by the elastic ball 8 is always relatively easy and convenient. After the elastic ball 8 is released, the pressure spring 15 can overcome the magnetic attraction force to reset the sliding plate 2, and the control pipe section 1 is restored to the normally open state, so that the structural design is ingenious and effective.
In addition, since the control tube section 1 in the present embodiment is normally closed in a natural state, it is not necessarily required to provide the sealing plug 7 at the outlet end of the hose 17, and such a medical fluid delivery device for clinical medical use can be generally brought into contact with air, and also because the length of the hose 17 between the control tube section 1 and the outlet end of the hose 17 is extremely short. Of course, in order to avoid possible contamination of the section of the hose 17 near the outlet end, a closing plug for sealing the hose 17 may be inserted into the outlet end of the hose, and the closing plug 7 may be removed when in use. However, if used, the sealing plug 7 is provided, as the case may be, to be certainly more environmentally friendly. If the sealing plug 7 is to be added to seal the outlet end of the rubber tube 17, as shown in fig. 1, a vent hole 19 is formed in the section of the rubber tube 17 between the elastic ball 8 and the sealing plug 7, one end of the vent hole 19 is connected in the opening of the elastic ball 8, and the other end port is tightly attached to the matching surface of the sealing plug 7 and the outlet end face of the rubber tube 17, so that when the elastic ball 8 is pressed, the air flow pushes the sliding plate 2 and pushes the sealing plug 7 open at the same time, the sliding plate 2 pushes the control tube section 1 and the sealing plug 7 off at the same time, the outlet end of the rubber tube 17 is opened, and the sealing plug 7 is also pushed open gradually in the opening process of the control tube section 1, thereby realizing double valve control. As a preferred implementation structure, the sealing plug 7 is pushed up and falls off before the sliding plate 2 is pushed to the position where the valve hole 10 and the liquid guide hole are opposite. If in actual use, in order to avoid liquid medicine leakage as far as possible, a main switch can be arranged at the liquid medicine storage tank connected with the rubber tube 17, and the elastic ball 8 is pushed to open the sealing block 7 and the sliding plate 2 and then the main switch is opened, so that the leakage and waste of liquid medicine can be thoroughly avoided, but in actual use, the operation is very little unless high-precision liquid medicine conveying isolated from air is strictly required. In addition, in this embodiment, since the rubber tube 17 is small, the size of the sealing plug 7 is also small, so that the inflatable direct pushing-up is a relatively convenient and environment-friendly manner, and the small sealing plug 7 is not required to be pulled by a human hand and is not contacted with the port of the rubber tube 17, so that pollution is prevented. Preferably, the vent hole 19 is closed after being inserted by a pluggable plug 18, when the plug 18 is inserted into the pipe wall of the control pipe section 1, the vent hole 19 is cut off to be closed, at the moment, the sliding plate 2 is only moved when the elastic ball 8 is pressed, then, after the control pipe section 1 is completely closed in advance, a small plug 18 is slightly pulled out, the smoothness of the vent hole 19 is restored, the sealing plug 7 automatically pops out or further presses the elastic ball 8 to enable the sealing plug 7 to automatically pop out, and the structure can also enable the control pipe section 1 to be opened firstly and then the sealing plug 7 to be opened only through the elastic ball 8. If necessary, the air outlet end of the air vent 19 can be made into a tile-shaped arc cavity so as to increase the contact area with the sealing plug 7 and perform relatively comprehensive pushing on the sealing plug in the circumferential direction. For the sealing plug 7, a preferable design structure is also provided to accommodate the pushing opening of the air flow of the air vent 19, that is, the thickness of the sealing plug 7 at the position of the outlet end of the air vent 19 is thicker than the thickness of the portion of the sealing plug 7 inserted into the rubber tube 17, and the center of gravity of the sealing plug 7 is preferably just on the same vertical line with the center of the outlet end of the air vent 19, for example, a zigzag structure is formed.
When the elastic ball 8 is specifically manufactured, the elastic ball 8 is in an ellipsoidal shape, and one end of the elastic ball in the long axis direction is provided with a perforation communicated with the orifice of the air collecting hole 9, so that the elastic ball 8 can be squeezed by hand to provide compressed air. In addition, the pilot hole has a larger diameter than the valve hole 10 in order to regulate the flow rate.
In the above embodiments, in order to facilitate the pressing of the elastic ball 8, if necessary, the elastic ball 8 is always in a compressed state, and a compressing device is also designed in this embodiment, as shown in fig. 5, the compressing device includes two hinged pressing plates 210, one ends of the two pressing plates 210 are hinged and connected with a V-shaped reed 220 in an inner included angle near the hinge, and the reed 220 forms a certain clamping area between the two pressing plates 210. The other end of one pressing plate 210 is in damping hinge connection with a connecting plate 230, and the damping hinge connection enables the connecting plate 230 to always rotate towards the inner side of the clamping area, for example, an inclined top spring 240 can be arranged in an included angle formed between the pressing plate 210 at the upper part and the connecting plate 230, and the top spring 240 always has a pushing force on the connecting plate 230, so that the connecting plate 230 always approaches the other ends of the two pressing plates 210 closely. Meanwhile, a plurality of arc-shaped blind cavities 2301 are formed on the surface of one side of the connecting plate 230 facing the clamping area along the length direction, the blind cavities 2301 are used for allowing the arc-shaped bent free ends of the lower pressing plates 210 to slide downwards, and the free ends of the lower pressing plates 210 can slide upwards smoothly, so that the size of the clamping area formed between the two pressing plates 210 is changed, the compression state of different elastic balls 8 is adapted, the elastic balls 8 are locked in the required compression state, and the structure is simple, but the change of the clamping area and the locking effect are abnormal.
Finally, the sliding plate 2 in the above embodiment is in a rectangular strip-shaped structure, as shown in fig. 1, on the pipe wall of the control pipe section 1, a rectangular sealing ring 11 is embedded in each of the upper and lower side walls of the sliding hole for sliding fit of the sliding plate 2, and the center of the sealing ring 11 is located on the axis of the liquid guiding hole, so that the sliding sealing structure of the sliding plate 2 is more reliable, and meanwhile, the processing requirement of the surface smoothness of the sliding plate 2 can be reduced, that is, the high-requirement processing standard of the sliding plate 2 and the pipe wall of the control pipe section 1 for sliding seal fit is avoided. Of course, the sliding plate 2 can also be a strip-shaped plate made of polytetrafluoroethylene, and on one hand, the sliding plate can be sealed and has certain smoothness.
The sealing plug 7 is of a screw plug structure which can be inserted and removed into the outlet end of the liquid guide hole, and the sealing plug 7 can be conveniently pulled out manually. In addition, the compression spring 15 is a conical spring, the large end of which is coaxially fixed on the closed end of the mounting tube 3, and the small end of which is coaxially connected with the free end of the guide rod 5, so as to increase the stability of the axial action of the spring under the premise of improving the action of elastic reset.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (3)
1. The utility model provides a clinical medical treatment is with medicine liquid conveyor, includes the rubber tube that is used for carrying the liquid medicine, its characterized in that: the rubber pipe is provided with a hard control pipe section, a liquid guide hole communicated with the rubber pipe is formed in the control pipe section, one side of the control pipe section is fixedly connected with a mounting pipe, one end of the mounting pipe is opened and covered on the outer side wall of the control pipe section and is fixed with the outer side wall of the control pipe section, and the other end of the mounting pipe is closed;
the valve plate comprises a sliding block and a sliding plate which are integrally connected, the sliding block is installed in the installation pipe in a sliding fit manner, a pressure spring which is always in a compressed state is connected between the sliding block and the closed end of the installation pipe, the sliding plate penetrates through the control pipe section in a sliding and sealing manner in the radial direction, a valve hole is formed in the middle of the sliding plate, and the pressure spring pushes the sliding plate to a position where the valve hole and the liquid guide hole are completely staggered in a natural state; one end of the sliding plate, which is away from the sliding block, is provided with a gas collecting hole with a blind hole structure, the orifice of the gas collecting hole penetrates out of the control pipe section, an elastic ball is fixedly connected on the outer wall of the control pipe section around the orifice, and the orifice is communicated with the inside of the elastic ball; the elastic ball comprises a left ball shell and a right ball shell, wherein the right ball shell is made of elastic materials, the left ball shell is made of hard materials, a notch is formed towards one end of the sliding plate, an installation rod is vertically and fixedly connected in the left ball shell, a horizontal ram is vertically and fixedly connected on the installation rod, the horizontal ram horizontally extends towards one side away from the sliding plate, and a strip groove is formed in the horizontal ram along the axial direction of the horizontal ram; the right spherical shell is internally provided with a parallelogram-shaped four-bar mechanism, an upper hinge point and a lower hinge point of the four-bar mechanism are respectively connected with the inner top wall and the inner bottom wall of the right spherical shell, the left hinge point and the right hinge point of the four-bar mechanism are respectively positioned in the strip groove and can slide in the strip groove in a straight line, and the hinge point at the left end is connected with the free end of the sliding plate through a connecting rod penetrating through the opening, so that when the four-bar mechanism is extruded from the upper side and the lower side, the sliding plate slides towards one side of the mounting tube;
one end of a guide rod is fixedly connected at the free end of the sliding block, the other end of the guide rod passes through the closed end of the mounting tube in a sliding fit manner and then extends out of the mounting tube, and a pull ring is connected to the extending end of the guide rod; the pressure spring is a conical spring, the large end of the pressure spring is coaxially fixed on the closed end of the mounting tube, and the small end of the pressure spring is coaxially connected with the free end of the guide rod;
the sliding plate is of a rectangular strip plate structure, and rectangular sealing rings are respectively embedded in the upper side wall and the lower side wall of a sliding hole for sliding fit of the sliding plate on the pipe wall of the control pipe section, and the center of each sealing ring is positioned on the axis of the liquid guide hole.
2. The medical fluid delivery device for clinical treatment according to claim 1, wherein: the sliding plate is a strip-shaped plate made of polytetrafluoroethylene.
3. The medical fluid delivery device for clinical treatment according to claim 1, wherein: the outlet end of the rubber tube is provided with a sealing plug which is a screw plug structure capable of being inserted and arranged in the outlet end of the liquid guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013231.8A CN112022701B (en) | 2020-09-24 | 2020-09-24 | Medicine liquid conveying device for clinical medical treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013231.8A CN112022701B (en) | 2020-09-24 | 2020-09-24 | Medicine liquid conveying device for clinical medical treatment |
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| CN112022701B true CN112022701B (en) | 2023-11-24 |
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| CN202011013231.8A Active CN112022701B (en) | 2020-09-24 | 2020-09-24 | Medicine liquid conveying device for clinical medical treatment |
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| CN112022701A (en) | 2020-12-04 |
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Effective date of registration: 20231026 Address after: 201600 2nd floor, 5255 Beisong Road, Chedun Town, Songjiang District, Shanghai Applicant after: Shanghai Junfu Health Management Co.,Ltd. Address before: 401120 25 Huyun Street, Yubei District, Chongqing Applicant before: CHONGQING ZHIAO TECHNOLOGY CO.,LTD. |
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