CN211244960U - Micro pump convenient to clean for artery injection - Google Patents
Micro pump convenient to clean for artery injection Download PDFInfo
- Publication number
- CN211244960U CN211244960U CN201921761250.1U CN201921761250U CN211244960U CN 211244960 U CN211244960 U CN 211244960U CN 201921761250 U CN201921761250 U CN 201921761250U CN 211244960 U CN211244960 U CN 211244960U
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- injection
- push rod
- injection cavity
- side wall
- cavity
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Abstract
The utility model provides a micropump for arterial injection convenient to wash. The method comprises the following steps: a base; the suction injection cavity is arranged on the base and is provided with a first injection cavity and a second injection cavity; a first injection port and a first cleaning port are formed in one end, far away from the second injection cavity, of the first injection cavity, and a second injection port and a second cleaning port are formed in one end, far away from the first injection cavity, of the second injection cavity; the push-pull assembly is provided with a push rod, a first piston block and a second piston block which are respectively arranged at two ends of the push rod; the push rod is coaxially arranged with the first injection cavity, the first piston block is arranged in the first injection cavity, and the second piston block is arranged in the second injection cavity; the driving device drives the push rod to move along the direction parallel to the axis of the first injection cavity; and the cleaning structure is provided with a cleaning pipeline communicated with the first cleaning port and the second cleaning port, and a first on-off valve arranged on the cleaning pipeline. Can be injected continuously, and has low cost and convenient cleaning.
Description
Technical Field
The utility model relates to an artery injection equipment technical field especially relates to a micropump for artery injection convenient to wash.
Background
After a catheter is selectively or super-selectively inserted into a target artery for tumor blood supply, a proper amount of anticancer drugs or drug combination particles and microspheres are injected at a proper speed for embolization, which is called TACE (percutaneous coronary embolization), and currently, the catheter is mostly used for treating liver cancer, and comprises: hepatic artery intubation chemoembolization and hepatic artery intubation chemoperfusion; it can also be used for perfusion chemotherapy of esophageal artery, gastroduodenal artery, and uterine artery. Under the existing conditions, the injection is carried out manually after being configured by an injector, the conditions of discontinuous injection and uneven manual injection speed exist, the operation time is prolonged, time and labor are wasted, and the toxic release of chemotherapeutic drugs is increased. That is, there are at least instances where the injection is not continuous.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been made to provide a micro pump for arterial injection that overcomes or at least partially solves the above problems and facilitates cleaning.
Specifically, the utility model provides a micropump for arterial injection convenient to wash, include:
a base;
the suction injection cavity is arranged on the base and is provided with a first injection cavity and a second injection cavity; the first injection cavity and the second injection cavity are coaxially arranged, a first injection port and a first cleaning port are arranged at one end, far away from the second injection cavity, of the first injection cavity, and a second injection port and a second cleaning port are arranged at one end, far away from the first injection cavity, of the second injection cavity;
the push-pull assembly is provided with a push rod, a first piston block and a second piston block, wherein the first piston block and the second piston block are respectively arranged at two ends of the push rod; the push rod and the first injection cavity are coaxially arranged, a first piston block is arranged in the first injection cavity, and a second piston block is arranged in the second injection cavity; and
a drive device mounted to the base configured to: driving the push rod to move along a first direction parallel to the axis of the first injection cavity so that the first injection cavity performs injection, and the second injection cavity sucks liquid; the push rod is driven to move along a second direction opposite to the first direction, so that the second injection cavity performs injection, and the first injection cavity sucks liquid; and
the cleaning structure is provided with a cleaning pipeline communicated with the first cleaning port and the second cleaning port, and a first on-off valve arranged on the cleaning pipeline.
Optionally, the arterial injection micropump facilitating cleaning further comprises:
two suction injection pipes, wherein one ends of the suction injection pipes are respectively arranged at the first injection port and the second injection port;
two suction branch pipes respectively connected to the other ends of the two suction injection pipes;
an injection pipeline having an injection main pipe and two injection branch pipes; one ends of the two injection branch pipes are respectively connected to the other ends of the two suction injection pipes, and the other ends of the two injection branch pipes are connected to the injection main pipe; and
the valve assembly is configured to control the connection and disconnection of the two suction branch pipes and the two injection branch pipes; and the valve component is provided with two one-way valves respectively arranged on the two suction branch pipes and two second on-off valves respectively arranged on the two injection branch pipes.
Optionally, the push-pull assembly and the inhalation injection cavity are mounted on the base, the push-pull assembly and the inhalation injection cavity are one or more, and the driving device is one.
Optionally, the push-pull assembly further comprises a driven gear having a threaded bore; the push rod is a screw rod, and the driven gear is mounted on the push rod through the threaded hole;
the driving device comprises a motor, a driving gear arranged on an output shaft of the motor and a gear transmission mechanism, wherein the gear transmission mechanism is arranged between the driving gear and the driven gear.
Optionally, a limiting structure is arranged on the base; the push-pull assembly further comprises a sliding strip which is arranged between the first piston block and the second piston block and extends along the axial direction of the push rod; the slide bar is arranged on the limiting structure to block the push rod from rotating.
Optionally, a first mounting groove is arranged on the base, and the first mounting groove has a first side wall and a second side wall perpendicular to the axis of the push rod; the driven gear is installed between the first side wall and the second side wall of the first installation groove;
the first side wall and the second side wall are provided with installation gaps, and the push rod penetrates through the installation gaps.
Optionally, the first side wall and the second side wall are provided with the limiting structures, and
the limiting structure comprises an insertion notch with an upward opening and a limiting groove which is connected to the bottom of the insertion notch and extends in the direction away from the push rod; the slide bar is mounted in the limit groove through the insertion notch.
Optionally, the driving device includes a motor, a lead screw mounted on an output shaft of the motor, a thread block mounted on the lead screw, and a synchronous linkage structure fixed to the thread block; the lead screw extends along the axial direction of the push rod;
the base is provided with a slideway, and the thread block is inserted into the slideway through a protruding part on the thread block;
each push rod is arranged on the synchronous linkage structure to move along with the thread block on the lead screw.
Optionally, a limit block is arranged on the push rod;
a second mounting groove is formed in the synchronous linkage structure, and the second mounting groove is provided with a third side wall and a fourth side wall which are perpendicular to the axis of the push rod; the limiting block is arranged between the third side wall and the fourth side wall of the second mounting groove;
and the third side wall and the fourth side wall are both provided with installation gaps, and the push rod penetrates through the installation gaps.
Optionally, an input and control device is arranged on the base, and the input and control device is a single chip microcomputer or a computer.
The utility model discloses an among the micropump for arterial injection convenient to wash, owing to have two injection chambeies, one injection chamber is when inhaling liquid such as corresponding liquid medicine, and another injection chamber can be used to inject to the user, has jetted the direction of changing the push-and-pull subassembly after the injection chamber, can make the injection chamber that inhales the liquid medicine inject, can guarantee the continuity of injection. And the injection cavity and the push-pull assembly can be made of the materials of the traditional injector, so that the replacement is convenient and the cost is low.
Furthermore, due to the fact that the cleaning pipeline and the first on-off valve are arranged, under the condition that other pipelines are disconnected, cleaning liquid can flow between the two injection cavities through the cleaning pipeline, the cleaning liquid can be fully utilized, continuous and multiple flowing of the cleaning liquid is utilized, and the cleaning effect is improved.
Furthermore, the screw transmission of the screw rod is utilized, so that the high-precision movement of the push-pull assembly can be ensured, the injection speed is kept to be constant and stable, and a user can have comfortable and good use experience. And an input and control device is arranged, so that the control and the monitoring are convenient.
The utility model discloses a micropump for arterial injection convenient to wash can be according to actual demand, and is done very greatly, perhaps very little to satisfy the demand of multiple occasion.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic diagram of a micro pump for arterial injection that facilitates cleaning according to one embodiment of the present invention;
FIG. 2 is a block diagram of an arterial injection micropump that facilitates cleaning in accordance with one embodiment of the present invention;
FIG. 3 is a partial block diagram of the arterial infusion micropump of FIG. 2 facilitating cleaning;
FIG. 4 is a block diagram of a first syringe chamber of the arterial infusion micropump of FIG. 2 facilitating cleaning;
FIG. 5 is a schematic view of a push-pull assembly of the arterial infusion micropump of FIG. 2 facilitating cleaning;
FIG. 6 is a block diagram of an arterial injection micropump facilitating cleaning in accordance with one embodiment of the present invention;
FIG. 7 is another schematic block diagram of the arterial infusion micropump of FIG. 6 facilitating cleaning.
Detailed Description
The present embodiment provides a micropump for arterial injection convenient to clean, fig. 1 is a schematic diagram of a micropump for arterial injection convenient to clean according to an embodiment of the present invention, as shown in fig. 1, and referring to fig. 2 to 5, the micropump for arterial injection convenient to clean may include a base 20, a suction injection cavity, a push-pull assembly 40, a driving device 50 and a cleaning structure.
The suction injection cavity is mounted to the base 20, and has a first injection cavity 31 and a second injection cavity 32. The first injection cavity 31 and the second injection cavity 32 are coaxially arranged, one end of the first injection cavity 31, which is far away from the second injection cavity 32, is provided with a first injection port 311 and a first cleaning port 312, and one end of the second injection cavity 32, which is far away from the first injection cavity 31, is provided with a second injection port and a second cleaning port.
The push-pull assembly 40 has a push rod 41, and a first piston block 42 and a second piston block 43 respectively disposed at both ends of the push rod 41. The pushrod 41 is disposed coaxially with the first injection chamber 31, and the first piston block 42 is disposed in the first injection chamber 31 and the second piston block 43 is disposed in the second injection chamber 32. The driving device 50 is mounted on the base 20 and configured to: the push rod 41 is driven to move along a first direction parallel to the axis of the first injection cavity 31, so that the first injection cavity 31 performs injection, and the second injection cavity 32 sucks liquid; and, the push rod 41 is driven to move along a second direction opposite to the first direction, so that the second injection cavity 32 performs injection, and the first injection cavity 31 sucks liquid. Due to the fact that the two injection cavities are arranged, when one injection cavity sucks corresponding liquid such as liquid medicine, the other injection cavity can be used for injecting to a user, the direction of the push-pull assembly 40 is changed after the injection cavity is injected, the injection cavity sucking the liquid medicine can be used for injecting, and the injection continuity can be guaranteed.
Further, the purge structure may include a purge line 81 and a first on-off valve 82. The purge line 81 communicates the first purge port 312 and the second purge port. A first on-off valve 82 is mounted on the purge line 81. When the micro pump for arterial injection is in injection operation, the first on-off valve 82 is in a closed state, so that the micro pump for arterial injection performs continuous injection. When the injection cavity needs to be cleaned, cleaning liquid is firstly sucked into one injection cavity, then the first on-off valve 82 is in an open state, and the first injection port 311 and the second injection port can be in a closed state. The push-pull assembly 40 continues to operate to cause the cleaning fluid to flow within the two injection chambers, thereby cleaning the two injection chambers.
Further, the micro pump for arterial injection convenient for cleaning further comprises two suction injection pipes 71, two suction branch pipes 72 and an injection pipeline and a valve assembly. One ends of the suction injection pipes 71 are respectively installed at the first injection port 311 and the second injection port. Two suction branch pipes 72 are connected to the other ends of the two suction injection pipes 71, respectively. The injection line has an injection manifold 73 and two injection branches 74. One ends of the two injection branch pipes 74 are connected to the other ends of the two suction injection pipes 71, respectively, and the other ends of the two injection branch pipes 74 are connected to the injection manifold 73. The valve assembly is configured to open and close two intake manifold 72 and two injection manifold 74. And the valve assembly has two check valves 75 respectively provided to the two suction branch pipes 72 and two second on-off valves 76 respectively provided to the two injection branch pipes 74. The check valve 75 allows only liquid such as medical fluid to enter the injection chamber, and the second shut-off valve 76 allows only liquid such as medical fluid to flow out of the injection chamber through the injection branch tube 74.
In some embodiments of the present invention, the push-pull assembly 40 and the suction injection chamber are mounted to the base 20 to facilitate replacement of the suction injection chamber, etc., ensuring that each user uses only a new piece of equipment. That is, after a user uses the device, only the push-pull assembly 40 and the inhalation-injection cavity are replaced with new ones, and the base 20, the driving device 50, etc. may not be associated with the user, and thus the device can be used continuously, and the cost is saved. Further, the push-pull assembly 40 and the suction and injection cavity can be made of plastic, rubber and other materials similar to those of a traditional syringe, and the cost can be obviously saved. Further, the push-pull assembly 40 and the suction and injection cavity are one or more, and the driving device 50 is one. When the push-pull assembly 40 and the inhalation injection cavity are both multiple, multiple users can use the same time, or the injection amount in unit time is increased, and the like, so as to meet multiple requirements.
In some embodiments of the present invention, the push-pull assembly 40 further includes a driven gear 44, the driven gear 44 having a threaded bore. The push rod 41 is a lead screw, and the driven gear 44 is attached to the push rod 41 via a screw hole. The driving device 50 may include a motor 51, a driving gear 52 mounted to an output shaft of the motor 51, and a gear transmission 53, the gear transmission 53 being disposed between the driving gear 52 and the driven gear 44. Through the transmission of lead screw thread to through the rotational speed of reasonable control motor 51, can guarantee the constancy and the stability of the speed of artery continuous injection, and then guarantee user's travelling comfort.
In order to further improve the accuracy of injection, a stop structure 21 is provided on the base 20. And the push-pull assembly 40 further includes a slide bar 45 disposed between the first piston block 42 and the second piston block 43 and extending in the axial direction of the push rod 41. The slide 45 is mounted to the stop structure 21 to block the rotation of the push rod 41. The base 20 is provided with a first mounting groove having a first sidewall and a second sidewall perpendicular to the axis of the push rod 41. The driven gear 44 is installed between the first and second sidewalls of the first mounting groove. The first side wall and the second side wall are both provided with installation notches, and the push rod 41 penetrates through the installation notches. Preferably, the first side wall and the second side wall are provided with a limiting structure 21, and the limiting structure 21 includes an insertion notch with an upward opening, and a limiting groove connected to the bottom of the insertion notch and extending in a direction away from the push rod 41. The slide bar 45 is mounted to the stopper groove via the insertion notch. During the use, press down the draw runner 45 earlier, make the draw runner 45 get into the spacing groove via inserting the breach, loosen the draw runner 45, the draw runner 45 gets into the bottom in spacing groove, simple to operate, and can be including the fastness of installation, and can prevent that push rod 41 from rotating. The base 20 is provided with an input and control device 60, and the input and control device 60 is a single chip or a computer, so as to facilitate input control monitoring and the like.
In other embodiments of the present invention, as shown in fig. 6 and 7, the driving device 50 includes a motor 51, a lead screw 56 mounted on an output shaft of the motor 51, a screw block 57 mounted on the lead screw 56, and a synchronous linkage structure 58 fixed to the screw block 57. The lead screw 56 extends in the axial direction of the push rod 41. The base 20 is provided with a slide into which the screw block 57 is inserted through a protrusion thereon. Each push rod 41 is mounted to a timing linkage 58 for movement with a threaded block 57 on the lead screw 56. The push rod 41 is provided with a stopper 46. The synchronizing linkage 58 is provided with a second mounting groove having a third side wall 581 and a fourth side wall 582 perpendicular to the axis of the push rod 41. The stopper 46 is installed between the third sidewall 581 and the fourth sidewall 582 of the second mounting groove. The third side wall 581 and the fourth side wall 582 are both provided with installation notches, and the push rod 41 passes through the installation notches. Further, the push rod 41 may be provided in a square shape to fit the mounting notch, preventing the push rod 41 and the like from rotating.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. The utility model provides a micropump for arterial injection convenient to wash, includes the base, its characterized in that still includes:
the suction injection cavity is arranged on the base and is provided with a first injection cavity and a second injection cavity; the first injection cavity and the second injection cavity are coaxially arranged, a first injection port and a first cleaning port are arranged at one end, far away from the second injection cavity, of the first injection cavity, and a second injection port and a second cleaning port are arranged at one end, far away from the first injection cavity, of the second injection cavity;
the push-pull assembly is provided with a push rod, a first piston block and a second piston block, wherein the first piston block and the second piston block are respectively arranged at two ends of the push rod; the push rod and the first injection cavity are coaxially arranged, a first piston block is arranged in the first injection cavity, and a second piston block is arranged in the second injection cavity; and
a drive device mounted to the base configured to: driving the push rod to move along a first direction parallel to the axis of the first injection cavity so that the first injection cavity performs injection, and the second injection cavity sucks liquid; the push rod is driven to move along a second direction opposite to the first direction, so that the second injection cavity performs injection, and the first injection cavity sucks liquid; and
the cleaning structure is provided with a cleaning pipeline communicated with the first cleaning port and the second cleaning port, and a first on-off valve arranged on the cleaning pipeline.
2. An arterial infusion micropump to facilitate cleaning according to claim 1, further comprising:
two suction injection pipes, wherein one ends of the suction injection pipes are respectively arranged at the first injection port and the second injection port;
two suction branch pipes respectively connected to the other ends of the two suction injection pipes;
an injection pipeline having an injection main pipe and two injection branch pipes; one ends of the two injection branch pipes are respectively connected to the other ends of the two suction injection pipes, and the other ends of the two injection branch pipes are connected to the injection main pipe; and
the valve assembly is configured to control the connection and disconnection of the two suction branch pipes and the two injection branch pipes; and the valve component is provided with two one-way valves respectively arranged on the two suction branch pipes and two second on-off valves respectively arranged on the two injection branch pipes.
3. An arterial infusion micropump to facilitate cleaning according to claim 1,
the push-pull assembly and the suction injection cavity are arranged on the base, one or more push-pull assemblies and one or more suction injection cavities are arranged, and the number of the driving devices is one.
4. An arterial infusion micropump to facilitate cleaning according to claim 1,
the push-pull assembly further comprises a driven gear having a threaded bore; the push rod is a screw rod, and the driven gear is mounted on the push rod through the threaded hole;
the driving device comprises a motor, a driving gear arranged on an output shaft of the motor and a gear transmission mechanism, wherein the gear transmission mechanism is arranged between the driving gear and the driven gear.
5. An arterial injection micropump to facilitate cleaning according to claim 4,
the base is provided with a limiting structure; the push-pull assembly further comprises a sliding strip which is arranged between the first piston block and the second piston block and extends along the axial direction of the push rod; the slide bar is arranged on the limiting structure to block the push rod from rotating.
6. An arterial injection micropump to facilitate cleaning according to claim 5,
the base is provided with a first mounting groove, and the first mounting groove is provided with a first side wall and a second side wall which are perpendicular to the axis of the push rod; the driven gear is installed between the first side wall and the second side wall of the first installation groove;
the first side wall and the second side wall are provided with installation gaps, and the push rod penetrates through the installation gaps.
7. An arterial injection micropump to facilitate cleaning according to claim 6,
the first side wall and the second side wall are provided with the limiting structures, and
the limiting structure comprises an insertion notch with an upward opening and a limiting groove which is connected to the bottom of the insertion notch and extends in the direction away from the push rod; the slide bar is mounted in the limit groove through the insertion notch.
8. An arterial infusion micropump to facilitate cleaning according to claim 1,
the driving device comprises a motor, a lead screw arranged on an output shaft of the motor, a thread block arranged on the lead screw, and a synchronous linkage structure fixed on the thread block; the lead screw extends along the axial direction of the push rod;
the base is provided with a slideway, and the thread block is inserted into the slideway through a protruding part on the thread block;
each push rod is arranged on the synchronous linkage structure to move along with the thread block on the lead screw.
9. An arterial infusion micropump to facilitate cleaning according to claim 8,
the push rod is provided with a limiting block;
a second mounting groove is formed in the synchronous linkage structure, and the second mounting groove is provided with a third side wall and a fourth side wall which are perpendicular to the axis of the push rod; the limiting block is arranged between the third side wall and the fourth side wall of the second mounting groove;
and the third side wall and the fourth side wall are both provided with installation gaps, and the push rod penetrates through the installation gaps.
10. An arterial infusion micropump to facilitate cleaning according to claim 1,
the base is provided with an input and control device which is a single chip microcomputer or a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921761250.1U CN211244960U (en) | 2019-10-21 | 2019-10-21 | Micro pump convenient to clean for artery injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921761250.1U CN211244960U (en) | 2019-10-21 | 2019-10-21 | Micro pump convenient to clean for artery injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211244960U true CN211244960U (en) | 2020-08-14 |
Family
ID=71951121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921761250.1U Expired - Fee Related CN211244960U (en) | 2019-10-21 | 2019-10-21 | Micro pump convenient to clean for artery injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211244960U (en) |
-
2019
- 2019-10-21 CN CN201921761250.1U patent/CN211244960U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20200814 Termination date: 20211021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |