CN218075197U - Injection device for radiofrequency ablation and radiofrequency ablation system - Google Patents
Injection device for radiofrequency ablation and radiofrequency ablation system Download PDFInfo
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- CN218075197U CN218075197U CN202123178253.2U CN202123178253U CN218075197U CN 218075197 U CN218075197 U CN 218075197U CN 202123178253 U CN202123178253 U CN 202123178253U CN 218075197 U CN218075197 U CN 218075197U
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Abstract
The utility model provides an injection device and radiofrequency ablation system for radiofrequency ablation, include: the device comprises a motor, a movable block with a first thread, a screw rod with a second thread, a grating ruler detection assembly and a micro control unit; the movable block is configured to be capable of being switched between an engaged position and a disengaged position, when the movable block is in the engaged position, the first thread is engaged with the second thread, the movable block is capable of moving along the axial direction of the lead screw along with the rotation of the lead screw with the second thread, when the movable block is in the disengaged position, the first thread is disengaged from the second thread; the grating ruler detection assembly is used for detecting the target position information of the movable block, and is electrically connected with the micro control unit so as to feed back the target position information to the micro control unit; the motor can drive the screw rod with the second thread to rotate, and the micro control unit can drive the motor to operate.
Description
Technical Field
The utility model relates to an injection device field especially relates to an injection device and radiofrequency ablation system for radiofrequency ablation.
Background
The radio frequency ablation treatment is an accurate minimally invasive operation which is used for accurately conveying radio frequency energy to a tumor target area to implement a minimally invasive ablation operation under the guidance of images. During ablation, the impedance of the patient circuit changes in real time, requiring the use of a syringe pump to inject it with saline.
The existing injection pump can be provided with a movable block (or the movable block is directly used as an injection part) which is fixedly connected with the injection part, and the movable block can be driven to move along the linear direction through the rotation of the screw rod by the matching of the movable block and the screw rod, so that the injection process is realized. Among the prior art, the movable block interlocks in the lead screw all the time, and the drive mode of movable block is single, is difficult to satisfy the user demand, for example: when the movable block needs to be retracted to the initial position (or other positions), the control circuit is needed to control the screw rod to slowly rotate, and time is consumed.
SUMMERY OF THE UTILITY MODEL
The utility model provides an injection device for radiofrequency ablation for the drive mode of solving the movable block is single, is difficult to satisfy user demand's problem.
According to a first aspect of the present invention, there is provided an injection device for radiofrequency ablation, comprising: the system comprises a motor, a movable block with a first thread, a screw rod with a second thread, a grating ruler detection assembly and a micro control unit;
the movable block is configured to be switchable between an engaged position in which the first thread is engaged with the second thread and a disengaged position in which the first thread is disengaged from the second thread and the movable block is movable in an axial direction of the lead screw in accordance with rotation of the lead screw having the second thread and the movable block is disengaged from the second thread and is movable in the axial direction of the lead screw independently of the lead screw;
the grating ruler detection assembly is used for detecting target position information of the movable block, and is electrically connected with the micro control unit so as to feed back the target position information to the micro control unit; the motor can drive the screw rod with the second thread to rotate, and the micro control unit can drive the motor to operate.
Optionally, the locking device further comprises a first shaft portion, the first shaft portion is fixedly connected with the movable block, the first shaft portion can be controlled to rotate around the designated shaft center, and the first shaft portion drives the movable block to be switched between the engagement position and the disengagement position through rotation around the designated shaft center.
Optionally, still include handle, linking arm, base and guide rail, the handle passes through connecting axle fixed connection the base, first axial region with the movable block install in the base, the base and/or the linking arm can be followed the guide rail motion.
Optionally, the grating ruler detection assembly is specifically configured to: detecting position information of the base as the target position information
Optionally, the base is provided with a first bearing, and the first bearing is connected to the first shaft part in a supporting manner.
Optionally, the device further comprises a connecting shaft, a swing arm and an operating part, wherein one end of the connecting shaft is connected with the first shaft part, the other end of the connecting shaft is connected with the swing arm, and the swing arm is further connected with the operating part;
the control part can respond to appointed operation to drive the swing arm to rotate around the appointed axis so as to drive the connecting shaft, the first shaft part and the movable block to rotate around the appointed axis.
Optionally, the swing arm further comprises a bearing portion, and the bearing portion is in support connection with the tail end of the swing arm.
Optionally, the screw rod with the second thread and the motor are in transmission through a first gear and a second gear.
Optionally, the display device further comprises a display unit electrically connected to the micro control unit.
According to a second aspect of the present invention, there is provided a radio frequency ablation system comprising a radio frequency ablation device for delivering radio frequency energy to an ablation subject, the radio frequency ablation system when executed performing the method of the first aspect or of the alternative aspects thereof.
The utility model provides an among injection device and the radio frequency ablation system for radio frequency ablation, through the movable block interlock position, break away from the switching between the position, realize the sliding block for the interlock of lead screw and break away from, and then, when being in the position that breaks away from, the movable block can be independent of the lead screw and follow the axial motion of lead screw, it is visible, the drive mode of movable block has included the drive of lead screw under the interlock position, has still included the motion that is independent of the lead screw under the position that breaks away from, and the drive mode is more various, helps fully provided demand, for example, when needing the movable block to remove to specific position (for example initial position), can directly control the movable block and break away from the lead screw, again control the movable block along axial motion under the condition of not controlling the lead screw.
On this basis, because there is this interlock, the switching that breaks away from, when operating personnel maloperation (for example when need utilizing lead screw drive movable block motion in order to inject, control the movable block and break away from the lead screw), then can influence the normal implementation of injection process, for this reason, the utility model discloses introduced grating chi determine module, and then, little the control unit can in time learn the target position information of sliding block to embody the position change of injection in-process sliding block, thereby whether take place maloperation (or other unusual) for the sliding block and provide abundant judgement foundation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is an overall structural view of an injection device for radiofrequency ablation of the present invention;
fig. 2 is a schematic structural diagram of an injection device for controlling rf ablation according to the present invention;
fig. 3 is a schematic structural diagram of a micro control unit controlling a motor according to the present invention;
description of reference numerals:
10-a motor;
101-a first gear;
102-a second gear;
20-a movable block;
201-a first thread;
30-a screw mandrel;
301-a second thread;
40-a grating ruler detection component;
50-a micro control unit;
60-a handle;
601-swing arm;
602-an operation section;
603-a bearing portion;
70-a linker arm;
701-a connecting shaft;
80-a base;
801-a first shaft portion;
802-bottom bearing;
90-guide rail.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like (if any) in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail with reference to specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Referring to fig. 1 to 3, an injection device for radiofrequency ablation includes: the system comprises a motor 10, a movable block 20 with a first thread 201, a screw rod 30 with a second thread 301, a grating ruler detection assembly 40 and a micro-control unit 50;
wherein the motor 10 is used as a power source of a mechanical structure; the grating ruler detection assembly 40 comprises a grating ruler, the measurement precision of the grating ruler is high, the method can improve the sensitivity of displacement measurement and timely detect and identify the situation that the push rod is moved artificially, the danger caused by overhigh or overlow flow rate is reduced, and the method has strong anti-jamming capability, so that the detection result is more accurate (the grating ruler can be replaced by a photoelectric encoder and a magnetoelectric encoder).
The movable block 20 is configured to be capable of being switched between an engaged position and a disengaged position, when the movable block 20 is in the engaged position, the first thread 201 is engaged with the second thread 301, the movable block 20 can move along the axial direction of the lead screw 30 along with the rotation of the lead screw 30 with the second thread 201, and when the movable block 20 is in the disengaged position, the first thread 201 is disengaged from the second thread 301;
fig. 2 illustrates the configuration of the movable mass in a disengaged position, in which the first thread 201 is disengaged from the second thread 301, and fig. 3 illustrates the configuration of the movable mass in an engaged position, in which the first thread 201 is engaged with the second thread 301.
The grating ruler detection component 40 is used for detecting target position information of the movable block 20, and the grating ruler detection component 40 is electrically connected with the micro control unit 50 so as to feed back the target position information to the micro control unit 50; the motor 10 can drive the screw rod 30 with the second thread 301 to rotate, and the micro control unit 50 can drive the motor 10 to operate.
In an example, the light source of the grating ruler detection assembly 40 is installed on the movable block 20, and when the movable block 20 moves along with the lead screw 30, the grating ruler detection assembly 40 obtains the target position information of the movable block 20.
Based on target position information, little the control unit can calculate corresponding velocity of movement, direction of motion, movement distance etc. and then judge whether unusual or the maloperation takes place for the motion of movable block 20 in view of the above, the embodiment of the utility model provides a hardware basis for this kind of judgement.
The abnormality includes a malfunction of the movable block and also includes a situation in which a blockage occurs during the movement of the movable block 20.
In a specific example, the grating ruler converts the displacement into a pulse or a digital quantity through photoelectric conversion. The micro control unit 50 compares the target position information with preset instruction signal information, judges whether the motion of the movable block has deviation according to the target position information and the preset instruction signal information, and if not, the motor 10 operates normally; if yes, the micro control unit 50 receives the signal abnormality, controls the motor 10 to stop moving and gives an alarm. The micro control unit 50 detects the motion state thereof by receiving the output signal of the grating ruler detection assembly 40, and judges whether the syringe pump is in a normal operation state or not by comparing the transmitted instruction signal information with the received target position information.
If the handle is manually moved when the injection pump works, the moving speed or the moving direction of the movable block 20 is abnormal, the output signal waveform of the grating ruler detection assembly 40 is abnormal, at the moment, the micro control unit 50 can give an alarm to remind an operator that the target is blocked, meanwhile, the micro control unit 50 can communicate with a radio frequency ablation host, and the host controls the working state of the injection pump.
Therefore, based on the grating ruler detection assembly 40, a sufficient basis can be provided for dealing with the abnormal condition.
The injection device for radiofrequency ablation further comprises a first shaft part 801, wherein the first shaft part 801 is fixedly connected with the movable block 20, and the first shaft part 801 can be controlled to rotate around a designated axis and is switched between the occlusion position and the disengagement position through rotation around the designated axis.
The injection device for radiofrequency ablation further comprises a handle 60, a connecting arm 70, a base 80 and a guide rail 90, wherein the handle 60 is fixedly connected with the base 80 through a connecting shaft 701, the first shaft part 801 and the movable block 20 are installed on the base 80, and the base 80 and/or the connecting arm 70 can move along the guide rail 90.
The grating ruler detection assembly 40 is specifically configured to: and detecting the position information of the base as the target position information.
Wherein, the light source of the grating ruler detection component 40 is installed on the movable block 20.
The base 80 is provided with a first bearing 802, and the first bearing 802 is supported and connected to the first shaft portion 801.
The injection device for radiofrequency ablation further comprises a connecting shaft 701, a swing arm 601 and a clamping control part 602, wherein one end of the connecting shaft 701 is connected with the first shaft part 801, the other end of the connecting shaft 701 is connected with the swing arm 601, and the swing arm 601 is further connected with the control part 602;
the control unit 602 can drive the swing arm 601 to rotate around the designated axis in response to a designated operation, so as to drive the connecting shaft 701, the first shaft 801, and the movable block 20 to rotate around the designated axis.
In one example, the operation portion 602 may be a clamping operation portion, and the corresponding designated operation is a clamping operation, and the initial state of the clamping operation portion is a clamping state in which the first thread 21 and the second thread 31 can be driven to engage.
In a specific example, the clamping operation portion may include a fixed clamping operation portion and a movable clamping operation portion, the movable clamping operation portion may be fixedly connected to the swing arm 601, when the fixed clamping operation portion and the movable clamping operation portion are manually clamped, the movable clamping operation portion may move relative to the fixed clamping operation portion, so as to drive the swing arm 601 to rotate around the designated axis L, when the swing arm 601 rotates, the first shaft portion 801 may be driven to rotate around the designated axis L due to a connection effect of the connection shaft 701, and finally the movable block 20 may be driven to rotate around the designated axis L, by this rotation, switching between the engagement position and the disengagement position may be achieved, when the swing arm 601 is in the disengagement position, the handle 60 may be directly pulled, and due to an effect of the connection arm 70, the base 80 may be driven, and the movable block 20 may move along an axial direction of the lead screw, and this movement is achieved independently of the lead screw.
The injection device for radiofrequency ablation further comprises a bearing portion 603, wherein the bearing portion 603 is in support connection with the tail end of the swing arm 601 so as to assist in realizing rotation around a designated axis L.
Referring to fig. 3, the lead screw 30 with the second thread 301 is in transmission with the motor 10 through the first gear 101 and the second gear 102.
When receiving the target position information, the micro control unit 50 compares and judges the target position information with preset instruction signal information, and controls the motor 10 according to a result of the comparison and judgment, and when the motor 10 rotates, the first gear 101 is driven to rotate, and the rotation of the first gear 101 is converted into the movement of the movable block along the axis of the screw rod.
The injection device for radiofrequency ablation also comprises a display unit electrically connected to said micro-control unit 50.
In one example, the display unit uses a digital display, and each data represents a signal appearing in a certain frequency range or a certain time interval.
The utility model also provides a radiofrequency ablation system, including being used for melting the radiofrequency ablation device of object output radiofrequency energy, this radiofrequency ablation system realizes the radiofrequency ablation device when carrying out and the method that the alternative relates to.
The utility model discloses a motor, the movable block that has first screw thread, the lead screw that has the second screw thread, grating chi determine module and the combination of little the control unit, wherein, when the movable block is in the interlock position, promptly first screw thread with second screw thread interlock, the movable block can follow the rotatory and edge of lead screw that has the second screw thread the axial motion of lead screw, when the movable block is in the position that breaks away from, promptly first screw thread with the second screw thread breaks away from. The grating ruler detection assembly is used for detecting target position information of the movable block and further feeding back the target position information to the micro control unit; the micro control unit can drive the motor to operate according to the target position information, so that the problem of blockage in a transfusion pipeline and the problem that the injection efficiency is influenced by the fact that a push rod is moved by a factor for pushing the push rod in the using process are solved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An injection device for radiofrequency ablation, comprising: the device comprises a motor, a movable block with a first thread, a screw rod with a second thread, a grating ruler detection assembly and a micro control unit;
the movable block is configured to be switchable between an engaged position in which the first thread is engaged with the second thread and a disengaged position in which the first thread is disengaged from the second thread and the movable block is movable in an axial direction of the lead screw with the second thread in accordance with rotation of the lead screw with the second thread and the movable block is movable in the axial direction of the lead screw independently of the lead screw;
the grating ruler detection assembly is used for detecting the target position information of the movable block, and is electrically connected with the micro control unit so as to feed back the target position information to the micro control unit; the motor can drive the screw rod with the second thread to rotate, and the micro control unit can drive the motor to operate.
2. The injection device as defined in claim 1, further comprising a first shaft portion fixedly connected to the movable block, wherein the first shaft portion is capable of being controlled to rotate around a designated axis and drives the movable block to switch between the engagement position and the disengagement position by rotating around the designated axis.
3. The injection device as claimed in claim 2, further comprising a handle, a connecting arm, a base and a guide rail, wherein the handle is fixedly connected to the base by a connecting shaft, the first shaft portion and the movable block are mounted to the base, and the base and/or the connecting arm are movable along the guide rail.
4. The injection device of claim 3, wherein the scale detection assembly is specifically configured to: and detecting the position information of the base as the target position information.
5. An injection device according to claim 3, wherein the base is provided with a first bearing which is bearing-connected to the first shaft part.
6. The injection device according to claim 3, further comprising a connecting shaft, a swing arm and a control part, wherein one end of the connecting shaft is connected to the first shaft part, the other end of the connecting shaft is connected to the swing arm, and the swing arm is further connected to the control part;
the control part can respond to appointed operation to drive the swing arm to rotate around the appointed axis so as to drive the connecting shaft, the first shaft part and the movable block to rotate around the appointed axis.
7. The injection unit of claim 6, further comprising a bearing portion bearing a distal end of the swing arm.
8. The injection unit of any one of claims 1 to 7, wherein the screw with the second thread is in transmission with the motor through a first gear and a second gear.
9. The injection device of any one of claims 1 to 7, further comprising a display unit electrically connected to the micro-control unit.
10. A radio frequency ablation system comprising a radio frequency ablation device for outputting radio frequency energy to an ablation subject, and an injection device according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123178253.2U CN218075197U (en) | 2021-12-16 | 2021-12-16 | Injection device for radiofrequency ablation and radiofrequency ablation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123178253.2U CN218075197U (en) | 2021-12-16 | 2021-12-16 | Injection device for radiofrequency ablation and radiofrequency ablation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218075197U true CN218075197U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123178253.2U Active CN218075197U (en) | 2021-12-16 | 2021-12-16 | Injection device for radiofrequency ablation and radiofrequency ablation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218075197U (en) |
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2021
- 2021-12-16 CN CN202123178253.2U patent/CN218075197U/en active Active
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