CN2555852Y - Medical intravenous injection propeller - Google Patents
Medical intravenous injection propeller Download PDFInfo
- Publication number
- CN2555852Y CN2555852Y CN 02267232 CN02267232U CN2555852Y CN 2555852 Y CN2555852 Y CN 2555852Y CN 02267232 CN02267232 CN 02267232 CN 02267232 U CN02267232 U CN 02267232U CN 2555852 Y CN2555852 Y CN 2555852Y
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- China
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- head
- steel band
- drive
- driving mechanism
- plate
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- Expired - Fee Related
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Abstract
The utility model relates to a medical static machine, comprising a machine case, an operation panel, a static hand-piece, a pressing plate, a driving mechanism, a friction clutch and a pressure sensing device. The drive mechanism and the friction clutch are installed in the machine case. The sliding plate of the driving mechanism and a propulsion power head-piece are combined as one to push the propulsion power head forward or backward. The pressuring sensing device is directly arranged in the propulsion power head-piece for transmitting the thrust of a syringe piston to push medicinal liquid. The utility model has simple structure, low cost and easy operation. The advancing starting point of the utility model can be located at any position and the time limit of the advancing starting point can be adjusted, which does not need air-push or manual-push. The utility model is the medical static machine, the propulsion of which is even and pulseless.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, a kind of specifically Medical intravenous injection propeller.
Background technology
We know, vein, intra-arterial injection are one of Therapeutic Method of the most normal use at present, no matter internal medicine, surgery, department of pediatrics, department of obstetrics and gynecology or the like, each section office all is with artificial quiet various medicines and the nutritional solution of pushing away, chemotherapy of tumors is often once used several drugs, carry out intravenous injection continuously, and usually usefulness all be manual method, for up to dozens of minutes.This is " heavy physical labour " to the operation nurse, and effort and bad grasp is quiet pushes away the time also causes suffering for the patient.At present, domestic have an automatic injector of vein speed change, can realize injecting automatically, but its complex structure, the price height advances starting point not locate arbitrarily, needs " sky pushes away " or " people pushes away " sometimes.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of simple structure is provided, cost is low, operation, easy to use, advance starting point to locate arbitrarily, time limit is adjustable arbitrarily, does not need " sky pushes away " or " people pushes away ", the even pulseless Medical intravenous injection propeller of propulsive force.
The technical scheme in the invention for solving the above technical problem is: a kind of Medical intravenous injection propeller, it is characterized in that: it comprises cabinet, guidance panel, propelling head, pressing plate, driving mechanism, friction clutch, pressure sensor device, driving mechanism and friction clutch are installed in the cabinet, the slide plate of driving mechanism connects as one with advancing head, drive and advance the head advance and retreat, pressure sensor device is set directly in the propelling head, and the sensing syringe piston is to the thrust of medicinal liquid.
This utility model driving mechanism adopts steel band to drive, its by drive hub, drive steel band, draw steel band, guide plate, slide plate and steel band prick head and form, guide plate, slide plate and propelling head are one, article two, drive steel band, one end is by there being steel band to prick the left end that head is anchored on guide plate, and is wound to clockwise along the drive hub external cylindrical surface that to prick head fixing; Draw steel band one end by pricking the right-hand member that head is anchored on guide plate, and being wound to steel band counterclockwise along the external cylindrical surface of drive hub, to prick head fixing.This utility model friction clutch is provided with driven wheel, driving shaft, thrust button, drive hub, friction plate, platen, pressing plate, spring and handwheel to be formed, and thrust button and driving shaft are one, and driven wheel is fixed on the driving shaft.
This utility model is owing to adopt said structure, against existing technologies, its simple structure, cost is low, and operation, easy to use advances starting point to locate arbitrarily, and the time limit is adjustable arbitrarily, does not need " sky pushes away " or " people pushes away ", the even pulse free of propulsive force.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is an appearance structure sketch map of the present utility model.
Fig. 2 is the structural representation of this utility model driving mechanism.
Fig. 3 is this utility model friction clutch structural representation
Fig. 4 is the structural representation of this utility model pressure sensor device
1. cabinets among the figure, 2. guidance panel 3. advances head, 4. pressing plate, 5. bayonet lock, 6. handwheel, 7. drive hub 8. drives steel band, 9. draws steel band, and 10. guide plate 1,11. slide plate, 12. steel bands are pricked head, and 13. steel bands are pricked head, and 14. steel bands are pricked head, 15. driven wheels, 16. thrust button, 17. driving shafts, 18. friction plates, 19. platens, 20. pressing plates, 21. springs, 22. bearing, 23. end caps, 24. shells, 25. iron cores, 26. springs, 27. spring base, 28. push-plates, 29. piston push rods, 30. coils.
The specific embodiment
As can be seen from Figure 1, a kind of Medical intravenous injection propeller, it comprises cabinet 1, guidance panel 2, advances head 3, pressing plate 4, bayonet lock 5, pressing plate 4 adopt saddle type pressing plates and bayonet lock 5 to be used for card together to push down syringe.Be provided with driving mechanism and friction clutch in the cabinet 1, advance in the head 3 and directly be provided with pressure sensor device, the sensing syringe piston is to the thrust of medicinal liquid.
As can be seen from Figure 2, driving mechanism is that steel band drives, its by drive hub 7, drive steel band 8, draw steel band 9, guide plate 10, slide plate 11 and steel band prick 12,13,14.Guide plate 10, slide plate 11 and to advance head 3 be one, two drive steel band 8, one ends by there being steel band to prick 12 left ends that are anchored on guide plate 9, and are wound to clockwise along drive hub 7 external cylindrical surfaces and prick 14 and fix; Draw steel band 9 one ends by pricking 13 right-hand members that are anchored on guide plate, and be wound to steel band counterclockwise along the external cylindrical surface of drive hub and prick 14 fixing.Make driving, draw steel band to be straight line by above connected mode, and tangent with the external cylindrical surface of drive hub 7.The axle center of drive hub 7 is fixed, and does turning clockwise under external force is ordered about, and drives steel band and then twines on the cylinder of hub, and pulling guide plate 10, slide plate 11, advance head 3 to move to right to advance, the piston of needle tubing is exerted pressure to medicinal liquid; Draw steel band 9 owing to clockwise rotating of hub discharges with it simultaneously, require the needs that draw steel band to prolong when moving to right to the right to adapt to the guide plate assembly.When drive hub 7 rotated counterclockwise, making under the effect of drawing steel band 9 was that the guide plate slide plate advances head move to left (retreating).
This mechanism its transmission of power direction in transmission process is reversible, makes left and right straight line by steel band driving guide plate when promptly drive hub is rotated and moves; When making left and right rectilinear motion, same guide plate make drive hub do gyration by steel band.In above these transmission process, fit tightly with the external cylindrical surface of drive hub is tangent all the time owing to driving steel band, and during motion between steel band and the hub no relative slippage do not have friction yet, thereby improved transmission efficiency.This is the rotating type of belt drive of a kind of good revolution---straight line or straight line---.
As can be seen from Figure 3, friction clutch is provided with driven wheel 15, driving shaft 17, thrust button 16, drive hub 7, friction plate 18, platen 19, pressing plate 20, spring 21 and handwheel 6 compositions.Thrust button 16 is an one with driving shaft 17 in this device, driven wheel 15 is fixed on the driving shaft 17, when handwheel 6 unscrews counterclockwise, built-in spring 21 makes the certain end play of generation between pressing plate 20, friction plate 18, drive hub 7 and the thrust button 16 with pressing plate 20 extrapolations, at this moment drive hub 7 can be rotated arbitrarily on driving shaft 17,3 of propelling heads that are connected with drive hub by steel band can arbitrarily move forward and backward in its total travel scope, to adapt to the needs of different model needle tubing length variations after taking out medicine.When needing machine to inject, need only the piston handle of head rest winding the needle tube will be advanced, screw handwheel 6 clockwise, at this moment clutch under the effect of handwheel 6 with pressing plate 20, platen 19, friction plate 18, drive hub 7, thrust button 16, be one along the axial compression of driving shaft, under the driving of driven wheel 15, drive hub 7 will be done rotation synchronously with driving shaft 17, advance head, piston handle piston compression medicinal liquid to inject human body thereby drive.Advance when finishing, unscrew handwheel 6 counterclockwise, manually will advance a post-tensioning to retreat to original position, in order to injecting needs once more.Quiet pushing away can make propelling head rising arbitrarily in the total travel scope push away point location after machine adopts this device, overcome " sky pushes away " or " people pushes away " phenomenon in the lead screw transmission, and operation is simple, compares and saved the operating time greatly with gear, rack gear, improved work efficiency.
In the whole process that Medical intravenous injection propeller medicine in to needle tubing is implemented to inject, to detect the thrust of needle tubing inner carrier all the time, to monitor the working condition of whole bolus infusion processes to medicinal liquid.In case occur injecting unusually then report to the police and thrust, so pressure sensor device is a quiet indispensable ingredient that pushes away in the machine.This utility model pressure sensor device is set directly in the propelling head 3, and the sensing syringe piston is to the thrust of medicinal liquid.
As can be seen from Figure 4, the pressure sensor device ingredient has bearing 22, end cap 23, shell 24, iron core 25, spring 26, spring base 27, push-plate 28, coil 30, the stationary part formed in the pick offs of bearing 22, end cap 23, shell 24, spring base 27, coil 30 wherein, the moving part that push-plate 28, iron core 25 are formed in the pick offs.Spring 26 can change its axial length under the effect of thrust, produce one and thrust direction opposite effect power, makes the dynamic equilibrium in the device, to guarantee that iron core 25 can stop on the axial optional position in the bolus infusion processes in its total travel scope.Iron core 25 part of portion in coil adopts hollow-core construction, and iron core is placed in outside the spring base 27, and spring 26 place hollow among, spring base 27 plays the effect of guiding again at this.Slide plate 11 will move to right during propelling, and bearing 22 is fixed as one with slide plate 11 together with pick off integral body and moves to right, and inject effect by syringe piston push rod 29 and the generation of piston compression medicinal liquid.Injecting simultaneously because the counteracting force of medicinal liquid acts on push-plate 28, iron core 25 by piston push rod 29, make spring 26 bear pressure and shorten, thereby make iron core 25 relative spring bases 27 in coil 30, produce a small axial displacement, by coil this relative displacement is converted to electric weight again and externally exports, this electric weight has then been represented the size of thrust.Whole sensor has embodied advantage highly sensitive, that rectilinearity good, the range of linearity is wide at this.
By the mounting means of pick off among Fig. 4 as seen, the two is coaxial for the axis of the axis of pick off iron core 25 and piston push rod 29, so the detected power of pick off is exactly piston push rod, the piston thrust to medicinal liquid, no any intermediate conversion links or mechanism between these two belong to " directly measuring ".Pick off has been because of this mounting means has improved certainty of measurement, be a kind ofly to be used for the quiet ideal transducer that pushes away machine, and the mounting means of pick off also is ideal, simplified the machine setting of device.
Claims (3)
1. Medical intravenous injection propeller, it is characterized in that: it comprises cabinet, guidance panel, propelling head, pressing plate, driving mechanism, friction clutch, pressure sensor device, driving mechanism and friction clutch are installed in the cabinet, the slide plate of driving mechanism connects as one with advancing head, drive and advance the head advance and retreat, pressure sensor device is set directly in the propelling head, and the sensing syringe piston is to the thrust of medicinal liquid.
2. Medical intravenous injection propeller according to claim 1, it is characterized in that: driving mechanism adopts steel band to drive, its by drive hub, drive steel band, draw steel band, guide plate, slide plate and steel band prick head and form, guide plate, slide plate and propelling head are one, article two, drive steel band, one end is by there being steel band to prick the left end that head is anchored on guide plate, and is wound to clockwise along the drive hub external cylindrical surface that to prick head fixing; Draw steel band one end by pricking the right-hand member that head is anchored on guide plate, and being wound to steel band counterclockwise along the external cylindrical surface of drive hub, to prick head fixing.
3. Medical intravenous injection propeller according to claim 1, it is characterized in that: friction clutch is provided with driven wheel, driving shaft, thrust button, drive hub, friction plate, platen, pressing plate, spring and handwheel and forms, thrust button and driving shaft are one, and driven wheel is fixed on the driving shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267232 CN2555852Y (en) | 2002-05-22 | 2002-05-22 | Medical intravenous injection propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267232 CN2555852Y (en) | 2002-05-22 | 2002-05-22 | Medical intravenous injection propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2555852Y true CN2555852Y (en) | 2003-06-18 |
Family
ID=33732861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02267232 Expired - Fee Related CN2555852Y (en) | 2002-05-22 | 2002-05-22 | Medical intravenous injection propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2555852Y (en) |
-
2002
- 2002-05-22 CN CN 02267232 patent/CN2555852Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |