CN210170593U - Medical precise micro-injection pump - Google Patents
Medical precise micro-injection pump Download PDFInfo
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- CN210170593U CN210170593U CN201920619133.5U CN201920619133U CN210170593U CN 210170593 U CN210170593 U CN 210170593U CN 201920619133 U CN201920619133 U CN 201920619133U CN 210170593 U CN210170593 U CN 210170593U
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- moving block
- machine body
- way bearing
- movable plate
- seat
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Abstract
The utility model relates to a medical precise micro-injection pump, which comprises a machine body, wherein a pair of supporting seats for supporting an injector is arranged on the machine body, a U-shaped groove which is attached to the injector is arranged on each supporting seat, an inverted U-shaped limiting seat is also arranged between the two supporting seats on the machine body, a pair of fixing seats are arranged on the machine body, grooves which are embedded into the bottom ends of the limiting seats are arranged on the fixing seats, and the limiting seats are fixed by pin shafts after being embedded into the fixing seats; the moving assembly comprises a moving block and a clamping mechanism which is arranged on the moving block and used for clamping the piston handle, and the moving block is driven by an actuating mechanism arranged on the machine body and drives the piston handle to move. The utility model has the advantages that: through add spacing seat between two supporting seats to carry on spacingly to the anterior segment position of syringe, avoid at the in-process that uses, the syringe anterior segment perks upwards and influences going on smoothly of liquid medicine injection.
Description
Technical Field
The invention relates to medical equipment, in particular to a medical precise micro-injection pump.
Background
The micro-injection pump (micro pump for short) is a new type of pump force instrument, and can accurately, micro-uniformly and continuously output a small quantity of fluid. Consists of a controller, an actuating mechanism and an injector. The micro-injection pump accurately, micro, uniformly and continuously pumps a small amount of liquid medicine into the body, is convenient to operate, timed and quantitative, can adjust the concentration and the speed of the medicine at any time according to the needs of the state of an illness, enables the medicine to keep effective blood concentration in the body, utilizes the micro-injection pump to rescue critical patients, can reduce the workload of nurses, improves the working efficiency, and accurately, safely and effectively cooperates with doctors to rescue.
For example, in patent CN208405572U, a micro syringe pump is proposed, which comprises a body, a moving block and an actuator, wherein the body has a groove for fixing a flange of a syringe barrel, the moving block is driven by the actuator to move so as to drive a piston of the syringe to move, the moving block has a first movable plate and a second movable plate thereon, the first movable plate and the second movable plate respectively correspond to two sides of a piston handle of the syringe, and the first movable plate and the second movable plate are driven by a clamping mechanism to move towards each other so as to clamp the piston handle of the syringe. The utility model discloses a micro-injection pump, through first fly leaf and second fly leaf relative movement can be quick press from both sides the piston handle of syringe tightly, syringe simple to operate, swift on micro-injection pump.
The above-mentioned micro-syringe pumps still have certain drawbacks during their use: when the injector is fixed, the flange of the needle cylinder of the injector is embedded into the groove of the machine body, and then the piston handle of the injector is clamped tightly by the first movable plate and the second movable plate, only the piston handle is clamped and fixed by adopting the fixing mode, and the rest parts of the injector are only supported on the machine body.
Disclosure of Invention
The invention aims to provide a medical precise micro-injection pump capable of preventing a syringe needle from tilting.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a medical accurate trace injection pump which innovation point lies in: comprises that
The injector fixing device comprises a machine body, a pair of supporting seats and a pair of fixing seats, wherein the machine body is provided with a pair of supporting seats for supporting an injector, the supporting seats are provided with U-shaped grooves which are attached to the injector, an inverted U-shaped limiting seat is also arranged between the two supporting seats on the machine body, the inner wall of the limiting seat is attached to the injector, the machine body is provided with the pair of fixing seats, the fixing seats are respectively provided with a groove which is embedded into the bottom end of a tolerance seat, and the limiting seat is fixed through a pin shaft after being embedded into the fixing;
the moving assembly comprises a moving block and a clamping mechanism which is arranged on the moving block and used for clamping the piston handle, and the moving block is driven by an actuating mechanism arranged on the machine body and drives the piston handle to move.
Furthermore, a displacement sensor is further installed on the moving block, and an alarm connected with the displacement sensor is also installed on the machine body.
Furthermore, the clamping mechanism comprises a first movable plate, a second movable plate, a rotating shaft, a first one-way bearing and a second one-way bearing, the first movable plate and the second movable plate are respectively arranged on two sides of the piston handle, the rotating shaft is rotatably arranged on the movable block, inner rings of the first one-way bearing and the second one-way bearing are both sleeved on the rotating shaft and can rotate along with the rotating shaft, the rotating directions of outer rings of the first one-way bearing and the second one-way bearing are opposite, outer rings of the first one-way bearing and the second one-way bearing are provided with external threads with the same rotating direction, and the first movable plate and the second movable plate are respectively in threaded fit with the outer rings of the first one-way bearing and the second one-way bearing.
Furthermore, flanges are arranged at two ends of the rotating shaft, supporting seats for supporting the rotating shaft to rotate are arranged at two ends of the moving block, and annular grooves for accommodating the flanges on the rotating shaft are formed in the supporting seats.
Furthermore, a limiting mechanism corresponding to the limit position of the moving block is arranged on the machine body, the limiting mechanism comprises a sliding seat, a sliding column and a spring, the sliding seat is fixed on the machine body, the sliding column is slidably arranged on the sliding seat, and the spring applies elastic force to the sliding column; and in the process that the moving block moves to the limit position, the moving block pushes the sliding column to move against the resistance of the spring and move to the limit position under the action of the sliding column.
Further, the actuating mechanism is a ball screw mechanism, and the moving block is mounted on a nut of the ball screw mechanism.
The invention has the advantages that: in the invention, the position of the front section of the injector is limited by additionally arranging the limiting seat between the two supporting seats, so that the situation that the front section of the injector upwarps upwards to influence the smooth injection of the liquid medicine in the use process is avoided; and the limit seat adopts the matching mode of the fixed seat and the pin shaft, so that the limit seat is convenient to disassemble and is matched with the taking and placing of the injector.
Through the spacing sensor that adds on the movable block, can detect the active position of piston handle to through the cooperation of alarm, thereby appear sending out the police dispatch newspaper under the unable circumstances that promotes smoothly such as jam at the piston handle, remind medical personnel to handle, improve the security of product.
The first movable plate and the second movable plate move relatively to clamp the piston handle of the injector quickly, and the injector is mounted on the micro-injection pump conveniently and quickly.
The clamping mechanism can realize that one rotating shaft drives the first movable plate and the second movable plate to move in opposite directions in succession through the first one-way bearing and the second one-way bearing which have opposite rotating directions, and the clamping mechanism is simple in structure.
The position of the syringe piston is limited by the limiting mechanism, and the syringe piston is prevented from being damaged due to the fact that the executing mechanism does not operate.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of a medical precise micro-injection pump according to the present invention.
Fig. 2 is an enlarged schematic view of the portion C of fig. 1.
Fig. 3 is an enlarged schematic view of a portion D of fig. 1.
FIG. 4 is a schematic view of a spacing block according to the present invention.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
A precise micro-injection pump for medical use as shown in figure 1 comprises
A organism 1, organism 1 is last to have a pair of supporting seat 9 that supports the syringe, it has the U-shaped recess of laminating mutually with syringe 200 to open on supporting seat 9, it still is provided with the spacing seat 8 of the shape of falling U to lie in between two supporting seats 9 on organism 1, the inner wall of spacing seat 8 laminates mutually with syringe 200, a pair of fixing base 81 has simultaneously on organism 1, all have the recess of the bottom embedding of a tolerance position seat 8 on fixing base 81, and it is fixed through round pin axle 82 behind spacing seat 8 embedding fixing base 81, its connection specifically is: the bottom end of the limiting seat 8 and the fixing seat 81 are respectively provided with a through hole for allowing the pin shaft 82 to pass through, after the limiting seat 8 is embedded into the groove of the fixing seat 81, the pin shaft 82 sequentially passes through the through hole in the fixing seat 81 and the through hole in the bottom end of the limiting seat 8, relative fixation between the fixing seat 81 and the limiting seat 81 is realized, the pin shaft 82 is fixed with the limiting seat 8 through a connecting belt 83, the connecting belt 83 is matched, and the pin shaft 82 is prevented from being discarded at will. The limiting seat 8 is additionally arranged between the two supporting seats 9, so that the front section of the syringe 200 is limited, and the situation that the front section of the syringe 200 is tilted upwards to influence the smooth injection of the liquid medicine in the use process is avoided; and for the spacing seat 8, the matching mode of the fixed seat 81 and the pin shaft 82 is adopted, so that the spacing seat 8 is convenient to disassemble, and the injector 200 is matched to be taken and placed.
And the moving assembly is used for clamping the piston handle 202 of the injector 200 and comprises a moving block 2 and a clamping mechanism which is arranged on the moving block 2 and is used for clamping the piston handle 202, and the moving block 2 is driven by an actuating mechanism 3 arranged on the machine body 1 and drives the piston handle 202 to move. The actuating mechanism 3 is a ball screw mechanism, and the moving block 2 is arranged on a nut of the ball screw mechanism.
The clamping mechanism comprises a first movable plate 4, a second movable plate 5, a rotating shaft, a first one-way bearing and a second one-way bearing, the first movable plate 4 and the second movable plate 5 are respectively corresponding to two sides of the piston handle 202 of the injector 200, and after the first movable plate 4 and the second movable plate 5 clamp the piston handle 202 of the injector 200, the moving block 2 can drive the piston handle 202 to move.
The rotating shaft 601 is rotatably disposed on the moving block 2, specifically, the two ends of the rotating shaft 601 are provided with flanges 201, the two ends of the moving block 2 are provided with supporting seats for supporting the rotating shaft 601 to rotate, the supporting seats are provided with annular grooves for accommodating the flanges 201 on the rotating shaft 601, and the flanges 201 on the rotating shaft 601 cannot axially move but only circumferentially rotate under the limitation of the annular grooves.
Inner rings of the first one-way bearing 602 and the second one-way bearing 603 are both sleeved on the rotating shaft 601 in an interference manner or are mounted on the rotating shaft 601 through keys, that is, the inner rings of the first one-way bearing 602 and the second one-way bearing 603 rotate together with the rotating shaft 601. The rotation directions of the outer rings of the first one-way bearing 602 and the second one-way bearing 603 are opposite, the outer rings of the first one-way bearing 602 and the second one-way bearing 603 have external threads with the same rotation direction, and the first movable plate 4 and the second movable plate 5 are respectively in threaded fit with the outer rings of the first one-way bearing 602 and the second one-way bearing 603. It should be noted that, the one-way bearing is a prior art, and the one-way bearing is a bearing that can rotate freely in one direction and is locked in the other direction, and the internal structure thereof will not be described in detail here.
Firstly, if the outer ring of the first one-way bearing 602 can instantaneously rotate clockwise when the rotating shaft 601 rotates clockwise and the outer ring of the second one-way bearing 603 is stationary, then when the rotating shaft 601 rotates counterclockwise, the outer ring of the first one-way bearing 602 is stationary and the outer ring of the second one-way bearing 603 is stationary and can instantaneously rotate counterclockwise. When the rotating shaft 601 rotates clockwise, the outer ring of the first one-way bearing 602 may drive the first flap to move rightward, and when the first flap 4 contacts the piston handle 202 of the injector 200, the rotating shaft 601 rotates counterclockwise, at this time, the first flap 4 is stationary, the second flap 5 moves leftward, and when the second flap contacts the piston handle 202 of the injector 200, the first flap 4 and the second flap 5 clamp the piston handle 202, and then the moving block 2 moves, and the first flap 4 and the second flap 5 may drive the piston of the injector 200 to move to inject the liquid medicine. After the injection is finished, the first movable plate and the second movable plate can be manually rotated to increase the distance between the first movable plate and the second movable plate.
A displacement sensor is also arranged on the moving block 2, and an alarm connected with the displacement sensor is also arranged on the machine body 1. Through the spacing sensor that adds on the movable block 2, can detect the active position of piston handle 202 to through the cooperation of alarm, thereby appear sending out the police dispatch newspaper under the unable smooth circumstances that promotes such as jam at piston handle 202, remind medical personnel to handle, improve the security of product.
The machine body 1 is provided with a limiting mechanism 7 corresponding to the limiting position of the moving block 2, the limiting mechanism 7 comprises a sliding seat 701, a sliding column 702 and a spring 703, the sliding seat 701 is fixed on the machine body 1, the sliding column 702 is slidably arranged on the sliding seat 701, and the spring 703 applies elastic force to the sliding column 702; in the process that the moving block 2 moves to the limit position, the moving block 2 can push the sliding column 702 to overcome the resistance of the spring 703 to move and move to the limit position under the action of the sliding column 702, the moving block 2 is limited through the sliding column 702, and the situation that the moving block 2 is excessively moved to damage the injector 200 due to excessive movement is prevented
The limit mechanism 7 further comprises a proximity switch 704, the proximity switch 704 is installed on the machine body 1, when the moving block 2 moves to the limit position, the proximity switch 704 can sense the sliding column 702 and send a signal to the controller, and the controller can control the execution mechanism 3 to stop running after receiving the signal of the proximity switch 704.
An angle steel 705 is arranged on the machine body 1, a through hole for the proximity switch 704 to pass through is formed in the angle steel 705, an external thread and two helicoids 706 matched with the external thread are arranged on a shell of the proximity switch 704, the two helicoids 706 are respectively positioned on two sides of the angle steel 705, and the proximity switch 704 can be fixed after the two helicoids 706 are contacted with the angle steel 705.
The working principle is as follows: after the liquid medicine is inhaled into the syringe of the injector 200, the initial distance between the moving block 2 and the first and second movable plates 4 and 5 satisfies: the distance between the first movable plate 4 and the second movable plate 5 is greater than the thickness of the piston handle 202 of the injector 200, the syringe flange 201 of the injector 200 is clamped into the groove 101 of the body 1, then the limiting seat 8 is embedded into the groove of the fixing seat 81, at this time, the inner wall of the limiting seat 8 is attached to the outer wall of the injector 200, then the limiting seat 8 is fixed by the pin shaft 82, the piston handle 202 of the injector 200 is located between the first movable plate 4 and the second movable plate 5, then the clamping mechanism 6 drives the first movable plate 4 and the second movable plate 5 to move oppositely to clamp the piston handle 202, then the trigger and control are performed by pressing the operating button on the body 1, and then the actuating mechanism 3 drives the moving block 2 to move, so as to drive the piston handle 202 to move, and perform liquid medicine injection.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A medical precise micro-injection pump is characterized in that: comprises that
The injector fixing device comprises a machine body, a pair of supporting seats and a pair of fixing seats, wherein the machine body is provided with a pair of supporting seats for supporting an injector, the supporting seats are provided with U-shaped grooves which are attached to the injector, an inverted U-shaped limiting seat is also arranged between the two supporting seats on the machine body, the inner wall of the limiting seat is attached to the injector, the machine body is provided with the pair of fixing seats, the fixing seats are respectively provided with a groove which is embedded into the bottom end of a tolerance seat, and the limiting seat is fixed through a pin shaft after being embedded into the fixing;
the moving assembly comprises a moving block and a clamping mechanism which is arranged on the moving block and used for clamping the piston handle, and the moving block is driven by an actuating mechanism arranged on the machine body and drives the piston handle to move.
2. The medical precise micro-injection pump according to claim 1, wherein: and a displacement sensor is also installed on the moving block, and an alarm connected with the displacement sensor is also installed on the machine body.
3. The medical precise micro-injection pump according to claim 1, wherein: the clamping mechanism comprises a first movable plate, a second movable plate, a rotating shaft, a first one-way bearing and a second one-way bearing, the first movable plate and the second movable plate are respectively arranged on two sides of the piston handle, the rotating shaft is rotatably arranged on the moving block, inner rings of the first one-way bearing and the second one-way bearing are sleeved on the rotating shaft and can rotate along with the rotating shaft, the rotating directions of outer rings of the first one-way bearing and the second one-way bearing are opposite, outer rings of the first one-way bearing and the second one-way bearing are provided with external threads with the same rotating direction, and the first movable plate and the second movable plate are respectively in threaded fit with the outer rings of the first one-way bearing and the second one-way bearing.
4. The medical precise micro-injection pump according to claim 3, wherein: flanges are arranged at two ends of the rotating shaft, supporting seats for supporting the rotating shaft to rotate are arranged at two ends of the moving block, and annular grooves for accommodating the flanges on the rotating shaft are formed in the supporting seats.
5. The medical precise micro-injection pump according to claim 1, wherein: the machine body is provided with a limiting mechanism corresponding to the limiting position of the moving block, the limiting mechanism comprises a sliding seat, a sliding column and a spring, the sliding seat is fixed on the machine body, the sliding column is slidably arranged on the sliding seat, and the spring applies elastic force to the sliding column; and in the process that the moving block moves to the limit position, the moving block pushes the sliding column to move against the resistance of the spring and move to the limit position under the action of the sliding column.
6. The medical precise micro-injection pump according to claim 1, wherein: the actuating mechanism is a ball screw mechanism, and the moving block is arranged on a nut of the ball screw mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920619133.5U CN210170593U (en) | 2019-04-30 | 2019-04-30 | Medical precise micro-injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920619133.5U CN210170593U (en) | 2019-04-30 | 2019-04-30 | Medical precise micro-injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210170593U true CN210170593U (en) | 2020-03-24 |
Family
ID=69832553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920619133.5U Expired - Fee Related CN210170593U (en) | 2019-04-30 | 2019-04-30 | Medical precise micro-injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210170593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109908435A (en) * | 2019-04-30 | 2019-06-21 | 江苏三和生物工程股份有限公司 | A kind of medical precise micro killer injecting pump |
-
2019
- 2019-04-30 CN CN201920619133.5U patent/CN210170593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109908435A (en) * | 2019-04-30 | 2019-06-21 | 江苏三和生物工程股份有限公司 | A kind of medical precise micro killer injecting pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200324 Termination date: 20210430 |