CN104941032A - An infusion pump with a rotation lock, the rotation lock and a method - Google Patents
An infusion pump with a rotation lock, the rotation lock and a method Download PDFInfo
- Publication number
- CN104941032A CN104941032A CN201510391828.9A CN201510391828A CN104941032A CN 104941032 A CN104941032 A CN 104941032A CN 201510391828 A CN201510391828 A CN 201510391828A CN 104941032 A CN104941032 A CN 104941032A
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- China
- Prior art keywords
- rotating shaft
- steady pin
- groove
- hook part
- snap fit
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Classifications
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/27—General characteristics of the apparatus preventing use
- A61M2205/276—General characteristics of the apparatus preventing use preventing unwanted use
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an infusion pump with a rotation lock, the rotation lock and a method; the infusion pump comprises a medicine box, a cover plate fixed on the top of the medicine box and provided with a protruding locking portion, a machine rack arranged above the cover plate and allowing the locking portion to pass, front and back half housings fixed on two sides of the machine rack and mutually buckled, a rotatable rotation shaft with at least a part contained by the front and back half housings, a fixed rack allowing partial the rotation shaft to pass and used for fixing the rotation shaft at least on two positions, a locking piece contained by the fixing rack and pushed by the rotation shaft so as to match and buckle with the locking portion, a fixing pin matched with the rotation shaft and used for fixing the rotation shaft at least on two positions, and an elastic piece enabling the locking piece to make reverse direction motions and sleeved on one end of the rotation shaft. The infusion pump can be effectively self-locked so as to ensure a medicine box assembly not to be dropped in usage, thus solving safety problems caused by mal-operation unlocking, reducing making and maintenance cost of a lock in a conventional complex mechanism, and improving product economic property.
Description
Technical field
The present invention relates to a kind of there is rotation lock infusion pump and rotation lock and method.
Background technology
Infusion pump medication, as a kind of common clinical treatment means, for medicine or medicament being injected in patient body, has been widely used in the every field of medical practice.But existing portable infusion pump medicine box is fixed lock and is had two kinds of forms: 1. manual locking or unlocking structure; 2. locked by key or unlock medicine box structure.May come off in manually operated structure use procedure or Non-medical-staff maloperation unblock, cause medicine box to get loose, affect the normal conveying of medicinal liquid, even cause sufferer heavy damage or death.Another kind of by key indentation or to unlock medicament box mechanism complicated, take up room comparatively large, manufacture and maintenance cost higher, do not possess good economy.
Summary of the invention
The present invention seeks to: provide a kind of there is rotation lock infusion pump and rotation lock and method, first solve Non-medical-staff maloperation to unlock, the hidden danger causing medicine box to get loose infusion pump cannot normally be worked, next passes through structure optimization, decrease manufacture and the maintenance cost of the snap close of mechanism's complexity in the past, improve the economy of product.
First technical scheme of the present invention is: a kind of infusion pump with rotation lock, it comprises: the medicine box of collecting medicinal fluid bag, be fixedly connected on medicine box upper end and be convexly equipped with the cover plate of latch part, to be arranged on above cover plate and to allow the frame that latch part is passed, be fixedly installed on frame both sides and the front Rear housing half mutually fastened, accommodated at least partly and rotatable rotating shaft by front Rear housing half, rotating shaft is allowed to partially pass through and on two positions, at least fix the fixed mount of rotating shaft, the frame that is fixed collecting and can promote by rotating shaft and with the lock hook part of latch part snap fit, the steady pin also at least fixing rotating shaft on two positions is coordinated with rotating shaft, and make the adverse movement of lock hook part and be set in the elastic component of rotating shaft one end.
On the basis of technique scheme, comprise following attached technical scheme further:
Described latch part center is provided with perforate, and perforate is provided with the inclined-plane coordinated with lock hook part.
Described lock hook part is L-type and comprises snap fit, to be positioned at above snap fit and the perforation allowing rotating shaft to partially pass through.
Described fixed mount comprise the through hole allowing rotating shaft to partially pass through, the inner chamber be connected with through hole, with intracavity inter-connection and can with the first groove of steady pin snap fit and with intracavity inter-connection also can with the second groove of steady pin snap fit, wherein there is angle at circumferencial direction in the first groove and the second groove.
The axis hole that described rotating shaft comprises spindle nose, is arranged on spindle nose and allows steady pin to insert and adjacent with axis hole and axial with the spindle nose eccentric be connected.
Second technical scheme of the present invention is: a kind of rotation lock, and it comprises: rotatable rotating shaft, allow rotating shaft to partially pass through and at least fix on two positions the fixed mount of rotating shaft, the frame that is fixed collecting and can promote by rotating shaft and with the lock hook part of latch part snap fit, to coordinate the steady pin of also at least fixing rotating shaft on two positions with rotating shaft and make the adverse movement of lock hook part and be set in the elastic component of rotating shaft one end.
Described fixed mount comprises the through hole allowing rotating shaft to partially pass through, the inner chamber be connected with through hole, with intracavity inter-connection and can with the first groove of steady pin snap fit, and with intracavity inter-connection and can with the second groove of steady pin snap fit, wherein there is angle at circumferencial direction in the first groove and the second groove, described rotating shaft comprises spindle nose, to be arranged on spindle nose and the axis hole allowing steady pin to insert, and the eccentric that with spindle nose be axially connected adjacent with axis hole, one end and camshaft are to be connected and diameter is greater than eccentric link, and be positioned at the axially outer end of the link other end, described lock hook part is L-type and comprises snap fit, to be positioned at above snap fit and the perforation allowing rotating shaft to partially pass through.
The length of described steady pin is greater than the diameter of perforation, and the diameter of perforation is greater than eccentric long end diameter, and is less than the diameter of link, and the diameter of through hole is then greater than the diameter of link and is less than the diameter of axially outer end.
3rd technical scheme of the present invention is: a kind of method, and it comprises:
S1: be first that ultrasonic bonding is connected to form kit of parts by medicine box and cover plate, frame be fixedly connected with pump head component simultaneously;
S2: then pump head component and kit of parts are assembled together, wherein latch part is through frame;
S3: then rotating shaft, fixed mount, lock hook part, elastic component are put in the locating slot of front Rear housing half, wherein rotating shaft is fixed with steady pin, fixed mount is provided with first and second groove of corresponding different conditions;
S4: more front Rear housing half is fixedly connected with frame;
S5: during locking, promotes rotating shaft axially-movable, and compressing elastic component shrinks, and steady pin is deviate from after the coordinating of the second groove, now lock hook part coordinates with cover plate inclined-plane, rotates an angle to locked position, realizes locking in the first groove that now steady pin is pressed in fixed mount by elastic component; During unblock, rotate rotating shaft to unlocked position, elastic component is in compressive state always, then be pressed in the second groove of fixed mount by steady pin, make rotating shaft be in self-locking state, rotating shaft drives lock hook part, make lock hook part and cover plate depart from inclined-plane to coordinate, now change kit of parts.
Advantage of the present invention is:
The present invention is fixed in open and close position by rotation lock, can effectively self-locking, ensure that use procedure Chinese medicine box assembly can not get loose, solve Non-medical-staff maloperation to unlock and the potential safety hazard that causes medicine box to get loose infusion pump cannot normally be worked, next passes through structure optimization, decrease manufacture and the maintenance cost of the snap close of mechanism's complexity in the past, improve the economy of product.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is explosive view of the present invention;
Fig. 2 is the axonometric chart of rotating shaft in the present invention;
Fig. 3 is the axonometric chart of fixed mount in the present invention;
Fig. 4 is the local structural graph of the present invention when being in locking state;
Fig. 5 is the sectional view of Fig. 4 along A-A line;
Fig. 6 is the local structural graph of the present invention when being in released state;
Fig. 7 is the sectional view of Fig. 6 along B-B line.
Detailed description of the invention
Embodiment: as shown in figs. 1-7, the invention provides a kind of first embodiment with the infusion pump of rotation lock, it comprises: the medicine box 10 of collecting medicinal fluid bag, be fixedly connected on medicine box 10 upper end and be convexly equipped with the cover plate 11 of latch part 110, to be arranged on above cover plate 11 and to allow the frame 12 that latch part 110 is passed, be fixedly installed on frame 12 both sides and the front Rear housing half 13 mutually fastened, accommodated by front Rear housing half 13 and can with the rotating shaft 21 of latch part 110 snap fit, allow the fixed mount 22 that rotating shaft 21 partially passes through, the frame 22 that is fixed accommodate and can the lock hook part 23 that promotes by rotating shaft 21, drive the key that rotating shaft 21 rotates, the steady pin 24 that rotating shaft 21 stops the rotation can be made, and make lock hook part 23 adverse movement and be set in the elastic component 25 of rotating shaft 21 one end.Its Chinese medicine box 10 and cover plate 11 are connected for ultrasonic bonding and form kit of parts, and front Rear housing half 13 is provided with the locating slot 130 of collecting fixed mount 22; Frame 12 is wriggling metal machine frame, and is fixedly connected with pump head component (not shown), and is provided with the perforation 120 allowing latch part 110 to pass.Cover plate 11 comprises the latch part 110 protruded and arrange, and latch part 110 center is provided with perforate, and perforate is provided with an inclined-plane 112, and the incline direction on inclined-plane 112 is obliquely.Elastic component 25 is preferably spring.
The axis hole 210 that rotating shaft 21 comprises spindle nose 212, is arranged on spindle nose 212 and allows steady pin 24 to insert, and the eccentric 214 that with spindle nose 212 be axially connected adjacent with axis hole 210, one end is connected with eccentric 214 axis and diameter is greater than the link of eccentric 214 and is positioned at the axially outer end of the link other end, and wherein axially outer end is provided with the keyhole coordinated with key.
Fixed mount 22 comprise allow rotating shaft 21 to partially pass through through hole 220, the inner chamber 222 be connected with through hole 220, to be connected with inner chamber 222 also can with the first groove 224 of steady pin 24 snap fit and be connected with inner chamber 222 also can with the second groove 226 of steady pin 24 snap fit, wherein there is angle at circumferencial direction in the first groove 224 and the second groove 226, and this angle is preferably right angle.
Lock hook part 23 is L-type and comprises snap fit 230, to be positioned at above snap fit 230 and the perforation 232 allowing rotating shaft 21 to partially pass through, snap fit 230 has the skewed surface coordinated with inclined-plane 112 at least, perforation 232 allows spindle nose 212 and eccentric 214 to pass, and do not allow link to pass, through hole 220 then allows link pass and stop axially outer end to pass, namely the diameter of perforation 232 is greater than the long end diameter of eccentric 214, and being less than the diameter of link, the diameter of through hole 220 is then greater than the diameter of link and is less than the diameter of axially outer end.
As illustrated in figures 4-5, during locking, insert in rotating shaft 21 with key, Level Promoting rotating shaft 21 axially-movable, namely move to locking direction, and oppress elastic component 25 and shrink, and steady pin 24 is deviate from after the coordinating of the second groove 226, now snap fit 230 press-in of lock hook part 23 enters inside the inclined-plane 112 of cover plate 11, rotate 90 degree to locked position, now steady pin 24 is pressed in the first groove 224 of fixed mount 22 by elastic component 25, rotating shaft 21 is in self-locking state thus, because rotating shaft 21 contacts part for the long end of eccentric 214 with perforation 232, therefore complete fastening locking kit of parts can be realized, even if perforation 232 sizes exceed its margin of tolerance, only be less than the offset of eccentric 214, the reliable locking of kit of parts can both be ensured.
As shown in fig. 6-7, during unblock, with key turns rotating shaft 21 to unlocked position, elastic component 25 is in compressive state always, is then pressed in the second groove 226 of fixed mount 22 by steady pin 24, makes rotating shaft 21 be in self-locking state, and rotating shaft 21 contacts part for the short end of eccentric 214 with perforation 232, rotating shaft 21 drives lock hook part 23 thus, snap fit 230 is departed from and the coordinating of inclined-plane 112, now can change kit of parts.
Simultaneously on the first example structure basis, the invention provides a kind of second embodiment of rotation lock, it comprises: rotatable rotating shaft 21, allow rotating shaft 21 to partially pass through and on two positions, at least fix the fixed mount 22 of rotating shaft 21, the frame 22 that is fixed accommodate and can promote by rotating shaft 21 and with the lock hook part 23 of latch part 110 snap fit, to coordinate with rotating shaft 21 and on two positions, at least fix the steady pin 24 of rotating shaft 21 and make lock hook part 23 adverse movement and be set in the elastic component 25 of rotating shaft 21 one end.
Simultaneously on said structure basis, the invention provides a kind of 3rd embodiment of method, it comprises:
S1: be first that ultrasonic bonding is connected to form kit of parts by medicine box and cover plate, frame be fixedly connected with pump head component simultaneously;
S2: then pump head component and kit of parts are assembled together, wherein latch part is through frame;
S3: then rotating shaft, fixed mount, lock hook part, elastic component are put in the locating slot of front Rear housing half, wherein rotating shaft is fixed with steady pin, fixed mount is provided with first and second groove of corresponding different conditions;
S4: more front Rear housing half is fixedly connected with frame;
S5: during locking, promotes rotating shaft axially-movable, and compressing elastic component shrinks, and steady pin is deviate from after the coordinating of the second groove, now lock hook part coordinates with cover plate inclined-plane, rotates an angle to locked position, realizes locking in the first groove that now steady pin is pressed in fixed mount by elastic component; During unblock, rotate rotating shaft to unlocked position, elastic component is in compressive state always, then be pressed in the second groove of fixed mount by steady pin, make rotating shaft be in self-locking state, rotating shaft drives lock hook part, make lock hook part and cover plate depart from inclined-plane to coordinate, now can change kit of parts.
The present invention infuses under effectively preventing producing unadjusted gravity because the maloperation of Non-medical-staff causes infusion pump kit of parts accidentally to get loose in infusion process, avoids patient's grievous injury or death.Manufacture and maintenance cost can be reduced simultaneously, improve product economy.
Although make specific descriptions to the present invention with reference to the above embodiments, but for the person of ordinary skill of the art, should be appreciated that and can not depart from the amendment carried out based on content disclosed by the invention within spirit of the present invention and scope or improve also all within spirit of the present invention and scope.
Claims (10)
1. one kind has the infusion pump of rotation lock, it is characterized in that it comprises: the medicine box (10) of collecting medicinal fluid bag, be fixedly connected on medicine box (10) upper end and be convexly equipped with the cover plate (11) of latch part (110), be arranged on cover plate (11) top and allow the frame (12) that latch part (110) is passed, be fixedly installed on frame (12) both sides and the front Rear housing half (13) mutually fastened, accommodated at least partly and rotatable rotating shaft (21) by front Rear housing half (13), rotating shaft (21) is allowed to partially pass through and on two positions, at least fix the fixed mount (22) of rotating shaft (21), the frame (22) that is fixed collecting and can promote by rotating shaft (21) and with the lock hook part (23) of latch part (110) snap fit, the steady pin (24) also at least fixing rotating shaft (21) on two positions is coordinated with rotating shaft (21), and make (23) adverse movement of lock hook part and be set in the elastic component (25) of rotating shaft (21) one end.
2. a kind of infusion pump with rotation lock as claimed in claim 1, it is characterized in that: described latch part (110) center is provided with perforate, and perforate is provided with the inclined-plane (112) coordinated with lock hook part (23).
3. a kind of infusion pump with rotation lock as claimed in claim 1, is characterized in that: described lock hook part (23) is for L-type and comprise snap fit (230), be positioned at snap fit (230) top and the perforation (232) allowing rotating shaft (21) to partially pass through.
4. a kind of infusion pump with rotation lock as claimed in claim 1, it is characterized in that: described fixed mount (22) comprises the through hole (220) allowing rotating shaft (21) to partially pass through, the inner chamber (222) be connected with through hole (220), be connected with inner chamber (222) and can with first groove (224) of steady pin (24) snap fit, and to be connected with inner chamber (222) and can with second groove (226) of steady pin (24) snap fit, wherein there is angle at circumferencial direction in the first groove (224) and the second groove (226).
5. a kind of infusion pump with rotation lock as claimed in claim 1, is characterized in that: described rotating shaft (21) comprises spindle nose (212), be arranged on spindle nose (212) goes up and the axis hole (210) allowing steady pin (24) to insert and eccentric (214) that is adjacent with axis hole (210) and that be axially connected with spindle nose (212).
6. a rotation lock, it is characterized in that it comprises: rotatable rotating shaft (21), rotating shaft (21) is allowed to partially pass through and on two positions, at least fix the fixed mount (22) of rotating shaft (21), the frame (22) that is fixed collecting and can promote by rotating shaft (21) and with the lock hook part (23) of latch part (110) snap fit, the steady pin (24) also at least fixing rotating shaft (21) on two positions is coordinated with rotating shaft (21), and make (23) adverse movement of lock hook part and be set in the elastic component (25) of rotating shaft (21) one end.
7. a kind of rotation lock as claimed in claim 6, it is characterized in that: described fixed mount (22) comprises the through hole (220) allowing rotating shaft (21) to partially pass through, the inner chamber (222) be connected with through hole (220), be connected with inner chamber (222) and can with first groove (224) of steady pin (24) snap fit, and to be connected with inner chamber (222) and can with second groove (226) of steady pin (24) snap fit, wherein there is angle at circumferencial direction in the first groove (224) and the second groove (226).
8. a kind of rotation lock as claimed in claim 7, it is characterized in that: described rotating shaft (21) comprises spindle nose (212), be arranged on spindle nose (212) to go up and the axis hole (210) allowing steady pin (24) to insert, and the eccentric (214) that with spindle nose (212) be axially connected adjacent with axis hole (210), one end and eccentric (214) are axially connected and diameter is greater than the link of eccentric (214), and be positioned at the axially outer end of the link other end, described lock hook part (23) is for L-type and comprise snap fit (230), be positioned at snap fit (230) top and the perforation (232) allowing rotating shaft (21) to partially pass through.
9. a kind of rotation lock as claimed in claim 8, it is characterized in that: the length of described steady pin (24) is greater than the diameter of perforation (232), and the diameter of bore a hole (232) is greater than the long end diameter of eccentric (214), and being less than the diameter of link, the diameter of through hole (220) is then greater than the diameter of link and is less than the diameter of axially outer end.
10. a method, is characterized in that it comprises:
S1: be first that ultrasonic bonding is connected to form kit of parts by medicine box and cover plate, frame be fixedly connected with pump head component simultaneously;
S2: then pump head component and kit of parts are assembled together, wherein latch part is through frame;
S3: then rotating shaft, fixed mount, lock hook part, elastic component are put in the locating slot of front Rear housing half, wherein rotating shaft is fixed with steady pin, fixed mount is provided with first and second groove of corresponding different conditions;
S4: more front Rear housing half is fixedly connected with frame;
S5: during locking, promotes rotating shaft axially-movable, and compressing elastic component shrinks, and steady pin is deviate from after the coordinating of the second groove, now lock hook part coordinates with cover plate inclined-plane, rotates an angle to locked position, realizes locking in the first groove that now steady pin is pressed in fixed mount by elastic component; During unblock, rotate rotating shaft to unlocked position, elastic component is in compressive state always, then be pressed in the second groove of fixed mount by steady pin, make rotating shaft be in self-locking state, rotating shaft drives lock hook part, make lock hook part and cover plate depart from inclined-plane to coordinate, now change kit of parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391828.9A CN104941032B (en) | 2015-07-07 | 2015-07-07 | A kind of infusion pump and rotation lock and method with rotation lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391828.9A CN104941032B (en) | 2015-07-07 | 2015-07-07 | A kind of infusion pump and rotation lock and method with rotation lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104941032A true CN104941032A (en) | 2015-09-30 |
| CN104941032B CN104941032B (en) | 2018-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510391828.9A Active CN104941032B (en) | 2015-07-07 | 2015-07-07 | A kind of infusion pump and rotation lock and method with rotation lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104941032B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355199A (en) * | 2018-03-09 | 2018-08-03 | 王可悦 | A kind of infusion flow adjuster that can be locked |
| CN109289097A (en) * | 2017-07-24 | 2019-02-01 | 比亚迪股份有限公司 | The attachment device and injection device of syringe pump and medicine box |
| CN109718428A (en) * | 2017-10-31 | 2019-05-07 | 比亚迪股份有限公司 | A kind of locker and portable injection pump |
| CN114852507A (en) * | 2022-04-29 | 2022-08-05 | 张新昌 | Circulation reuse sealing lock catch device of cover-shaking type packaging box |
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| CN204745187U (en) * | 2015-07-07 | 2015-11-11 | 苏州麦德迅医疗科技有限公司 | Transfer pump and rotatory lock with rotatory lock |
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| EP0989264A1 (en) * | 1998-09-21 | 2000-03-29 | Valeo Securite Habitacle | Improved electric lock for a motor vehicle door |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109289097A (en) * | 2017-07-24 | 2019-02-01 | 比亚迪股份有限公司 | The attachment device and injection device of syringe pump and medicine box |
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| CN108355199A (en) * | 2018-03-09 | 2018-08-03 | 王可悦 | A kind of infusion flow adjuster that can be locked |
| CN114852507A (en) * | 2022-04-29 | 2022-08-05 | 张新昌 | Circulation reuse sealing lock catch device of cover-shaking type packaging box |
| CN114852507B (en) * | 2022-04-29 | 2024-03-08 | 张新昌 | Circulating multiplexing sealing lock catch device of shaking cover type packing box |
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|---|---|
| CN104941032B (en) | 2018-05-01 |
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Denomination of invention: An infusion pump with a rotation lock, the rotation lock and a method Effective date of registration: 20180906 Granted publication date: 20180501 Pledgee: Suzhou hi tech Zone SME Company limited by guarantee Pledgor: SUZHOU MAIDEXUN MEDICAL TECHNOLOGY CO., LTD. Registration number: 2018320010036 |
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Date of cancellation: 20200628 Granted publication date: 20180501 Pledgee: Suzhou hi tech Zone SME Company limited by guarantee Pledgor: SUZHOU MEDSURE MEDICAL TECHNOLOGY Co.,Ltd. Registration number: 2018320010036 |