CN211584686U - Syringe clamping device of micro-injection pump - Google Patents
Syringe clamping device of micro-injection pump Download PDFInfo
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- CN211584686U CN211584686U CN201922327425.4U CN201922327425U CN211584686U CN 211584686 U CN211584686 U CN 211584686U CN 201922327425 U CN201922327425 U CN 201922327425U CN 211584686 U CN211584686 U CN 211584686U
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- syringe
- push plate
- pump body
- seat
- pump
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Abstract
The utility model relates to a syringe clamping device of a micro-injection pump, which comprises a pump body and a syringe seat arranged at the front end of the pump body, wherein a horizontal groove is arranged on the side surface of the syringe seat far away from the pump body, a strip-shaped hole along the length direction of the syringe seat is arranged at the bottom of the groove, a push plate matched with the shape of the strip-shaped hole is arranged in the strip-shaped hole, the surface of the push plate positioned in the pump body is connected with a propulsion adjusting mechanism which enables the push plate to move along the direction vertical to the push plate, and the operating end of the propulsion adjusting mechanism; the side surface of the injector seat far away from the pump body is provided with an elastic pressing mechanism which moves along the direction vertical to the push plate, and the pressing mechanism can be opposite to the push plate. The utility model discloses can be according to the specification adjustment clamping device of syringe in the use, need not change clamping device and just can make the syringe fix well, have better stability.
Description
Technical Field
The utility model belongs to the technical field of medical instrument's technique and specifically relates to a syringe clamping device of micro-injection pump is related to.
Background
The micro-injection pump is used for accurately, uniformly and continuously inputting medicaments into a body in the medical field, can strictly control the medicament dosage, ensures the optimal effective concentration of the medicaments, reasonably adjusts the injection speed of the medicaments, continuously infuses various medicaments which are urgently needed, and reduces the occurrence of complications.
The micro-injection pump has the working principle that a stepping motor is used as a power source, a system sends out control pulses to enable the stepping motor to rotate, the stepping motor drives a screw rod to rotate, the screw rod drives a pushing and injecting head on a transmission nut to move linearly, so that a piston of an injector is pushed to move linearly, liquid in the injector flows along one direction, the pushing speed of the liquid can be adjusted through the rotation movement of a set screw rod, and the dosage of given medicines is adjusted. Meanwhile, the input in the speed regulation range can be ensured through a speed measurement feedback system, and the injection precision and reliability are high. Before injection, the syringe barrel is fixed by the syringe clamp, so that the normal use of the micro-injection pump is prevented from being influenced by the movement of the syringe in the injection process.
The Chinese patent with the publication number of CN103920211B discloses a high-precision micro-injection pump, which comprises a shell, a display input module, a stepping motor propelling mechanism and a main control module; the shell is provided with a needle cylinder handle clamping groove and a needle cylinder bracket for supporting the needle cylinder of the injector in a fitting manner, and the shell is also provided with an elastic clamping mechanism which is matched with the needle cylinder bracket and used for clamping and fixing the needle cylinder of the injector; the elastic clamping mechanism comprises a first L-shaped bracket and a second L-shaped bracket which are arranged side by side; and a displacement sensor for detecting the distance between the first L-shaped support and the second L-shaped support is arranged between the first L-shaped support and the second L-shaped support. According to the specification of the injector, a plurality of syringe brackets, a first clamping piece and a second clamping piece with different specifications are selected and matched, the injector clamping device is suitable for injectors with various specifications, and the stability of clamping and fixing the injectors is good.
The above prior art has the following problems: the syringe bracket, the first clamping piece and the second clamping piece are required to be replaced simultaneously when syringes of different specifications are replaced each time, the process is complicated, and if errors exist in the size of the syringe, the syringe bracket, the first clamping piece and the second clamping piece matched with the syringe bracket are difficult to find for replacement, so that the syringe cannot be well fixed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a syringe clamping device of micro-injection pump can be according to the specification adjustment clamping device of syringe in the use, makes fixed, the better stability that has that the syringe can be fine.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a syringe clamping device of a micro-injection pump comprises a pump body, wherein a syringe seat extending outwards is horizontally arranged at the front end of the pump body, a horizontal groove is formed in the side surface, away from the pump body, of the syringe seat, the syringe seat is hollow, the position, opposite to the syringe seat, of the pump body is hollow, and the hollow part of the pump body is communicated with the hollow part of the syringe seat; a strip-shaped hole along the length direction of the syringe seat is formed in the bottom of the groove, a push plate matched with the strip-shaped hole in shape is arranged in the strip-shaped hole, the surface, located inside the pump body, of the push plate is connected with a propulsion adjusting mechanism enabling the push plate to move along the direction vertical to the push plate, and the operating end of the propulsion adjusting mechanism is located outside the pump body; the side surface of the injector seat far away from the pump body is provided with an elastic pressing mechanism which moves along the direction vertical to the push plate, and the pressing mechanism can be opposite to the push plate.
By adopting the technical scheme, when the injection pump is used for injecting, the syringe barrel is placed on the syringe seat, the elastic pressing mechanism is used for pressing the syringe on the syringe seat, when the specification of the syringe changes, the pressing mechanism cannot press and fasten the syringe at a fixed time, and the pushing adjusting mechanism is used for shortening the distance between the push plate and the pressing mechanism, so that the syringe can be kept stable.
The utility model discloses further set up to: the recess is the arc, the face that the pump body was kept away from to the push pedal is the cambered surface, the shape of the cambered surface of push pedal matches with the shape of recess tank bottom.
By adopting the technical scheme, the syringe barrel is in a circular tube shape, so that the groove and the push plate are both arranged in an arc shape, so that the matching between the syringe and the syringe seat is better.
The utility model discloses further set up to: the cambered surface of push pedal is last level to be provided with a plurality of anti-skidding lines, anti-skidding line interval sets up in vertical direction.
Through adopting above-mentioned technical scheme, prevent that the syringe from taking place to slide under the clamping state.
The utility model discloses further set up to: the pushing adjusting mechanism comprises a fixing piece fixedly connected with the push plate, and the other end of the fixing piece is in threaded connection with a screw rod arranged in a direction perpendicular to the push plate; one axial end of the screw rod penetrates through the outer wall of the injector seat and extends out of the injector seat, and the other end of the screw rod is connected with a fixed seat fixed in the pump body; the screw rod is rotatably connected with the fixed seat.
Through adopting above-mentioned technical scheme, drive the mounting through rotating the lead screw and drive the push pedal back-and-forth movement to realize the adjustment of the distance between push pedal and the hold-down mechanism.
The utility model discloses further set up to: and one end of the screw rod, which is positioned outside the injector seat, is fixedly connected with a hand wheel.
Through adopting above-mentioned technical scheme, conveniently rotate the operation to the lead screw.
The utility model discloses further set up to: one section of the screw rod close to the hand wheel is a threaded section, the other section of the screw rod far away from the hand wheel is an unthreaded section, and when the fixing piece moves to the joint of the threaded section and the unthreaded section, the surface of the push plate far away from the pump body is connected with the upper surface and the lower surface of the groove.
Through adopting above-mentioned technical scheme, inside restriction push pedal got into the pump body.
The utility model discloses further set up to: the pressing mechanism comprises a pull rod which is positioned in the pump body and arranged along the direction vertical to the push plate, one end of the pull rod in the length direction penetrates through the outer wall of the syringe seat to extend out of the syringe seat, and the other end of the pull rod is connected with a guide cylinder fixed in the pump body in a sliding manner; one end of the pull rod, which is positioned outside the injector seat, is connected with a pressing plate; the pressing plate is arranged along the direction vertical to the pull rod and can be opposite to the push plate; the injection syringe is characterized in that the pull rod is sleeved with a spring, one end of the spring is fixed on the guide cylinder, the other end of the spring is fixed on the pull rod, and a working distance is reserved between one end of the spring, which is positioned on the pull rod, and the opposite side wall of the injection syringe seat.
By adopting the technical scheme, after the injector is placed on the injector seat, the pressure plate compresses the injector under the tension of the spring.
The utility model discloses further set up to: the side of the pressure plate facing the pump body is provided with a pressure block at a position opposite to the push plate, and the surface of the pressure block opposite to the push plate is provided with an arc-shaped groove arranged along the length direction of the push plate.
Through adopting above-mentioned technical scheme, the briquetting can stretch into the recess, can compress tightly fixedly to the syringe more effectually.
To sum up, the utility model discloses a beneficial technological effect does:
1. the push adjusting mechanism is matched with the pressing mechanism, so that the fixing of the injectors with various specifications can be met, and the clamping device does not need to be replaced;
2. the fine adjustment of the push plate can be realized through the matching of the screw rod and the fixing piece;
3. the pull rod is movably connected with the guide cylinder, so that the pull rod moves in the guide cylinder when being pulled outwards, and the pull rod is prevented from moving vertically when moving.
Drawings
FIG. 1 is a schematic diagram of the overall construction of a micro-syringe pump;
FIG. 2 is a schematic structural view of a portion of the syringe receptacle;
FIG. 3 is a schematic sectional view of a portion of the propulsion adjustment mechanism;
FIG. 4 is a schematic structural view of the propulsion adjustment mechanism;
FIG. 5 is a schematic view of the push adjustment mechanism and the hold-down mechanism;
FIG. 6 is a schematic sectional view of a pressing mechanism;
fig. 7 is a schematic structural view of the pressing mechanism.
In the figure, 1, a pump body; 2. a syringe holder; 21. a groove; 22. a syringe clamping groove; 23. pushing the plate; 3. a propulsion adjustment mechanism; 31. a hand wheel; 32. a screw rod; 321. a threaded segment; 322. a non-threaded section; 33. a fixed seat; 34. a fixing member; 341. a first fixed part; 342. a second fixed part; 4. a hold-down mechanism; 41. pressing a plate; 42. briquetting; 43. a pull rod; 44. a spring; 45. a guide cylinder; 5. a syringe barrel; 51. the syringe is circled.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a syringe clamping device of micro-injection pump, including the pump body 1, the upper portion of the front end of the pump body 1 is the control display interface, and the intermediate position level of the lower part of the front end of the pump body 1 is provided with the syringe seat 2 that stretches out outwards. The injector seat 2 is integrally formed with the pump body 1. An arc-shaped groove 21 is formed in the side surface, away from the pump body 1, of the syringe holder 2 along the length direction of the syringe holder 2. The syringe barrel 5 is horizontally arranged in the groove 21, and a syringe ring edge 51 extending outwards is arranged on the outer wall of one end of the syringe barrel 5 in the length direction. The syringe holder 2 is provided with a syringe slot 22 at a position opposite to the syringe flange 51 for allowing the syringe flange 51 to be inserted and fixed.
Referring to fig. 2 and 3, the pump body 1 is hollow inside at a position opposite to the syringe holder 2, and the syringe holder 2 is hollow inside and communicates with the hollow portion of the pump body 1. The groove bottom of the groove 21 of the injector seat 2 is vertically provided with a square strip-shaped hole along the length direction of the groove 21, and the symmetrical surface of the strip-shaped hole in the length direction is superposed with the symmetrical surface of the groove 21 in the length direction. And a push plate 23 matched with the shape of the strip-shaped hole is arranged in the strip-shaped hole. The surface of the push plate 23 positioned outside the pump body 1 is a cambered surface and is matched with the cambered surface of the groove bottom of the groove 21. The cambered surface is provided with a plurality of anti-skidding lines horizontally, and the anti-skidding lines are arranged at intervals along the vertical direction.
The push plate 23 is connected with a propulsion adjusting mechanism 3 on the surface inside the pump body 1, and the propulsion adjusting mechanism 3 can enable the push plate 23 to move horizontally and the moving direction of the push plate 23 is vertical to the length direction of the syringe seat 2.
Referring to fig. 3 and 4, the thrust adjustment mechanism 3 comprises a fixing member 34, which is connected to the surface of the push plate 23 inside the pump body 1 and is L-shaped. The fixing member 34 includes a horizontally disposed first fixing portion 341 fixedly connected to the push plate 23 and a second fixing portion 342 vertically disposed away from the push plate 23 and integrally formed with the first fixing portion 341. One end of the second fixing portion 342 away from the first fixing portion 341 extends downward and abuts against the pump body 1. The lower portion of the second fixing portion 342 is provided with a screw hole arranged in a direction perpendicular to the push plate 23, and the screw hole penetrates through the second fixing portion 342. A screw rod 32 which is coaxial and matched with the threaded hole is arranged in the threaded hole, one axial end of the screw rod 32 penetrates through the outer wall of the injector seat 2 and extends to the outside of the injector seat 2, and the other axial end of the screw rod penetrates through the threaded hole of the second fixing part 342 and then is abutted against the pump body 1 and connected with a fixing seat 33. A hand wheel 31 is fixedly connected with one end of the screw rod 32 positioned outside the injector seat 2. The hand wheel 31 is an operating end of the advancing adjustment mechanism 3. The screw 32 is located at the lower part of the groove 21. The screw 32 includes a threaded section 321 in threaded connection with the second fixing portion 342 and an unthreaded section 322 away from the hand wheel 31 and abutting against the pump body 1. Threaded section 321 and unthreaded section 322 are integrally formed. The fixed seat 33 is fixedly connected with the pump body 1. The inside of the fixed seat 33 is a through hole which is coaxial with the non-threaded section 322 and is matched with the non-threaded section 322 in shape, and the non-threaded section 322 of the screw rod 32 is rotatably connected with the fixed seat 33.
The hand wheel 31 is rotated to drive the screw rod 32 to rotate, and the screw rod 32 drives the fixing piece 34 to move along the axial direction of the screw rod 32, so as to drive the push plate 23 connected with the fixing piece 34 to move along the axial direction of the screw rod 32. When the second fixing portion 342 of the fixing member 34 moves to the connection position of the threaded section 321 and the non-threaded section 322 of the screw rod 32, the arc surface of the push plate 23 is connected with the arc surface group of the groove 21, and the position of the second fixing portion 342 is the farthest position of the second fixing portion 342 away from the hand wheel 31; when the second fixing portion 342 of the fixing member 34 moves to abut against the portion of the syringe holder 2 at the position of the recess 21, the position of the second fixing portion 342 is the shortest distance between the second fixing portion 342 and the hand wheel 31, and is also the farthest distance between the push plate 23 and the pump body 1.
Referring to fig. 5 and 6, a pressing mechanism 4 is provided on the side of the syringe holder 2 away from the pump body 1. The pressing mechanism 4 comprises a pull rod 43 which is positioned inside the pump body 1 and is arranged along the axial direction of the screw rod 32, one end of the pull rod 43 in the length direction penetrates through the outer wall of the syringe holder 2 and extends out of the syringe holder 2, and the other end is positioned inside the pump body 1 and is connected with a guide cylinder 45. Referring to fig. 7, the guide cylinder 45 is horizontally disposed. The hollow position inside the guide cylinder 45 matches the shape of the pull rod 43 and allows the pull rod 43 to be inserted inside the guide cylinder 45, and the pull rod 43 is slidably connected with the guide cylinder 45. One end of the guide cylinder 45, which is far away from the pull rod 43, is fixedly connected with the pump body 1, and the bottom end of the guide cylinder 45 is fixedly connected with the pump body 1. The pressing plate 41 is fixedly connected to one end of the pull rod 43 located outside the syringe holder 2. A spring 44 sleeved on the pull rod 43 is arranged at the position of the pull rod 43 close to the guide cylinder 45; one end of the spring 44 in the length direction is fixed to the guide cylinder 45, and the other end thereof is fixed to the pull rod 43 apart from the guide cylinder 45, with a distance being left between the spring 44 and the outer wall of the syringe holder 2 axially opposed to the pull rod 43. The pressure plate 41 is disposed in an axial direction perpendicular to the pull rod 43. A cylindrical pressing block 42 extending towards the pump body 1 is arranged on the side surface of the pressing plate 41 opposite to the pump body 1 and away from the pull rod 43, and the pressing block 42 is fixedly connected with the pressing plate 41. The pressing block 42 is opposite to the push plate 23, and a working distance is reserved between the pressing block 42 and the push plate 23.
The pressing block 42 is provided with an arc-shaped groove which is arranged along the length direction of the push plate 23 and penetrates through the pressing block 42 on the end surface far away from the pressing plate 41, and a plurality of anti-slip lines are arranged on the arc-shaped groove at intervals along the length direction of the pressing plate 41.
The pressing plate 41 is pulled outwards, the pull rod 43 connected with the pressing plate 41 drives the spring 44 to stretch, and then the pressing plate 41 is rotated to enable the pressing block 42 to be pressed against the outer wall of the injector seat 2, and the spring 44 cannot be reset; when the pressing plate 41 is rotated to make the pressing piece 42 opposed to the pushing plate 23, the spring 44 is restored.
The implementation principle of the embodiment is as follows: when the injector works, the pressing plate 41 is pulled outwards and rotated, so that the pressing block 42 is pressed against the outer wall of the injector seat 2. The syringe barrel 5 is then placed in the recess 21 of the syringe holder 2 and the collar 51 is inserted into the syringe catch 22. Then, the pressing plate 41 is rotated to make the pressing block 42 opposite to the pushing plate 23, the pressing plate 41 drives the pressing block 42 to move towards the syringe barrel 5 under the pulling force of the spring 44, and finally the pressing block 42 presses the syringe barrel 5 against the pushing plate 23. When the syringe barrel 5 with a smaller diameter needs to be used, the distance between the pressing block 42 and the push plate 23 is increased, the abutting pressure of the pressing block 42 on the syringe barrel 5 is smaller or the distance between the pressing block 42 and the push plate 23 is larger than the diameter of the syringe barrel 5, the hand wheel 31 can be rotated, the push plate 23 is adjusted to move towards the direction close to the pressing block 42, so that the distance between the pressing block 42 and the push plate 23 is reduced, the pressing block 42 can tightly fix the syringe barrel 5 between the pressing block 42 and the push plate 23, the syringe barrel 5 is prevented from shaking, and the fact that the syringe can be kept stable in the using process of the syringe pump is guaranteed. The matching of the pushing adjusting mechanism 3 and the pressing mechanism 4 can ensure that the axes of syringe barrels 5 with various specifications are always in the same position, thereby facilitating the operation of other parts of the syringe pump.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a syringe clamping device of micro-injection pump, includes pump body (1), the front end level of pump body (1) is provided with syringe seat (2) that outwards stretch out, offer horizontally recess (21) on syringe seat (2) keep away from the side of pump body (1), its characterized in that: the syringe seat (2) is hollow, the position of the pump body (1) opposite to the syringe seat (2) is hollow, and the hollow part of the pump body (1) is communicated with the hollow part of the syringe seat (2); a strip-shaped hole along the length direction of the injector seat (2) is formed in the bottom of the groove (21), a push plate (23) matched with the strip-shaped hole in shape is arranged in the strip-shaped hole, the surface, located inside the pump body (1), of the push plate (23) is connected with a propulsion adjusting mechanism (3) enabling the push plate (23) to move along the direction vertical to the push plate (23), and the operating end of the propulsion adjusting mechanism (3) is located outside the pump body (1); the injection syringe is characterized in that an elastic pressing mechanism (4) moving along the direction perpendicular to the push plate (23) is arranged on the side face, far away from the pump body (1), of the injection syringe seat (2), and the pressing mechanism (4) can be opposite to the push plate (23).
2. The syringe clamping device of a micro syringe pump as set forth in claim 1, wherein: the groove (21) is arc-shaped, the surface of the push plate (23) far away from the pump body (1) is an arc surface, and the shape of the arc surface of the push plate (23) is matched with that of the bottom of the groove (21).
3. The syringe clamping device of a micro syringe pump as set forth in claim 2, wherein: a plurality of anti-slip lines are horizontally arranged on the arc surface of the push plate (23), and the anti-slip lines are arranged at intervals in the vertical direction.
4. The syringe clamping device of a micro syringe pump as set forth in claim 1, wherein: the propulsion adjusting mechanism (3) comprises a fixing piece (34) fixedly connected with the push plate (23), and the other end of the fixing piece (34) is in threaded connection with a screw rod (32) arranged in a direction vertical to the push plate (23); one axial end of the screw rod (32) penetrates through the outer wall of the injector seat (2) and extends out of the injector seat (2), and the other end of the screw rod is connected with a fixed seat (33) fixed in the pump body (1); the screw rod (32) is rotatably connected with the fixed seat (33).
5. The syringe clamping device of a micro syringe pump as set forth in claim 4, wherein: one end of the screw rod (32) positioned outside the injector seat (2) is fixedly connected with a hand wheel (31).
6. The syringe clamping device of a micro syringe pump as set forth in claim 5, wherein: one section of the screw rod (32) close to the hand wheel (31) is a threaded section (321), the other section of the screw rod (32) far away from the hand wheel (31) is a non-threaded section (322), and when the fixing piece (34) moves to the joint of the threaded section (321) and the non-threaded section (322), the surface of the push plate (23) far away from the pump body (1) is connected with the upper surface and the lower surface of the groove (21).
7. The syringe clamping device of a micro syringe pump as set forth in claim 1, wherein: the pressing mechanism (4) comprises a pull rod (43) which is positioned in the pump body (1) and arranged along the direction vertical to the push plate (23), one end of the pull rod (43) in the length direction penetrates through the outer wall of the syringe base (2) to extend out of the syringe base (2), and the other end of the pull rod is connected with a guide cylinder (45) fixed in the pump body (1) in a sliding manner; one end of the pull rod (43) positioned outside the syringe seat (2) is connected with a pressure plate (41); the pressure plate (41) is arranged along the direction vertical to the pull rod (43), and the pressure plate (41) can be opposite to the push plate (23); the injection syringe is characterized in that the pull rod (43) is sleeved with a spring (44), one end of the spring (44) is fixed on the guide cylinder (45), the other end of the spring (44) is fixed on the pull rod (43), and a working distance is reserved between one end, located on the pull rod (43), of the spring (44) and the side wall of the opposite syringe seat (2).
8. The syringe clamping device of a micro syringe pump as set forth in claim 7, wherein: the pressure plate (41) is provided with a pressure block (42) at a position opposite to the push plate (23) on the side surface facing the pump body (1), and an arc-shaped groove arranged along the length direction of the push plate (23) is formed in the surface of the pressure block (42) opposite to the push plate (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922327425.4U CN211584686U (en) | 2019-12-21 | 2019-12-21 | Syringe clamping device of micro-injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922327425.4U CN211584686U (en) | 2019-12-21 | 2019-12-21 | Syringe clamping device of micro-injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211584686U true CN211584686U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922327425.4U Expired - Fee Related CN211584686U (en) | 2019-12-21 | 2019-12-21 | Syringe clamping device of micro-injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211584686U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112641500A (en) * | 2020-12-31 | 2021-04-13 | 杭州堃博生物科技有限公司 | Pusher and steam ablation equipment |
| CN113082380A (en) * | 2021-04-07 | 2021-07-09 | 哈尔滨医科大学 | Special cardiovascular radiography injector device of intracardiac branch of academic or vocational study |
-
2019
- 2019-12-21 CN CN201922327425.4U patent/CN211584686U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112641500A (en) * | 2020-12-31 | 2021-04-13 | 杭州堃博生物科技有限公司 | Pusher and steam ablation equipment |
| CN113082380A (en) * | 2021-04-07 | 2021-07-09 | 哈尔滨医科大学 | Special cardiovascular radiography injector device of intracardiac branch of academic or vocational study |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 Termination date: 20211221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |