CN108969094B - Probe fixing device for percutaneous irreversible electroporation ablation - Google Patents
Probe fixing device for percutaneous irreversible electroporation ablation Download PDFInfo
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1402—Probes for open surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/11—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00595—Cauterization
Abstract
The invention relates to a probe fixing device used in percutaneous irreversible electroporation ablation, comprising: the mounting seat is used for being fixed on the patient bed; one end of the supporting arm is arranged on the mounting seat; and the probe fixing mechanism comprises a fixing frame connected with the other end of the supporting arm, at least one fixing rod movably arranged on the fixing frame, and at least two fixing clamps movably arranged on the fixing rod. Therefore, under the auxiliary fixing action of the external force of the probe fixing mechanism formed by the fixing clamp, the fixing rod and the fixing frame, the electrode probe can be prevented from accidentally moving due to the respiration of a patient, the output of high-voltage electricity and the like, so that the blood vessels, nerves and the like around the tumor are damaged, and the occurrence probability of complications is reduced; meanwhile, two adjacent electrode probes can be ensured to be distributed in parallel, the electrode spacing is good in controllability, the output voltage is stable, the ablation uniformity is improved, and the residual rate of a focus can be effectively reduced.
Description
Technical Field
The invention relates to the technical field of tumor ablation, in particular to a probe fixing device used in percutaneous irreversible electroporation ablation.
Background
Irreversible electroporation is a new technology recently used in clinical tumor ablation, which uses a strong electric field generated by high-voltage direct current to break down a cell membrane to generate a plurality of pores, thereby irreversibly destroying cells and leading to immediate tumor cell death.
An ablation plan is established before irreversible electroporation treatment, and the ablation volume, the electrode placement positions and the number are estimated mainly by using on-board software. In the treatment process, 2-6 19G electrode probes are required to be implanted into the tumor simultaneously during the electrode probe treatment of the pulse emission electrode. I.e., at least one single electrode activation probe is used in combination with 1-5 other single electrode probes. For irreversible electroporation ablation, the electrode configuration determines the distribution of the electric field, which determines the effectiveness of the treatment.
However, in the actual operation process, the electrode probe is moved due to respiration of a patient, positioning of the CT scanning electrode probe and output of high-voltage current, the unbalanced needle placement can cause the change of the distance between electrodes, the sent voltage depends on the electrode distance, the too high or too low voltage can cause high current or increase the focus residual probability, uneven ablation can be caused, and an ablation area is inconsistent with the area estimated by machine software, so that the treatment effect is affected. Meanwhile, the electrode probe can be inserted into the peripheral blood vessel of the tumor, the nerve or other viscera to be damaged due to the movement of the electrode probe in the operation, and the occurrence rate of complications is increased. In addition, in the current clinical practice, the fixing of the auxiliary electrode probe of the manual or electric puncture navigator is generally used. However, the fixing by the human hand is difficult to fix 3 or more electrode probes simultaneously; and the electric puncture navigator has high manufacturing cost and is difficult to widely use.
Disclosure of Invention
Based on this, it is necessary to provide a probe fixing device for percutaneous irreversible electroporation ablation, which can fix the positions of at least two electrode probes and keep the two electrode probes parallel to each other, improve the ablation uniformity, reduce the lesion residual probability, reduce the occurrence rate of complications and reduce the operation cost.
The technical scheme is as follows:
a probe fixation device for use in percutaneous irreversible electroporation ablation, comprising:
the mounting seat is used for being fixed on the patient bed;
one end of the supporting arm is arranged on the mounting seat; a kind of electronic device with high-pressure air-conditioning system
The probe fixing mechanism comprises a fixing frame connected with the other end of the supporting arm, at least one fixing rod movably arranged on the fixing frame, and at least two fixing clamps movably arranged on the fixing rod.
The probe fixing device is mainly applied to fixing the arrangement positions of at least two electrode probes in percutaneous irreversible electroporation ablation and keeping the mutually parallel postures among the electrode probes. In particular, when in use, the mounting seat is firstly fixed on the side frame of the sickbed without being mounted on the body of a patient, thus reducing the load of the patient; then, the position of the supporting arm is adjusted to enable the probe fixing mechanism to be close to the upper part of the electrode probe which is pre-punctured in the focus area of the patient for auxiliary fixing; when the electrode probes are fixed, the fixing rods are firstly moved on the fixing frame, so that the fixing clamps are respectively close to the electrode probes (the fixing clamps and the electrode probes are in one-to-one fixed corresponding relation), and then the electrode probes are respectively clamped by operating different fixing clamps according to the positions of the electrode probes. Therefore, under the auxiliary fixing action of the external force of the probe fixing mechanism formed by the fixing clamp, the fixing rod and the fixing frame, the electrode probe can be prevented from accidentally moving due to the respiration of a patient, the output of high-voltage electricity and the like, so that the blood vessels, nerves and the like around the tumor are damaged, and the occurrence probability of complications can be effectively reduced; meanwhile, two adjacent electrode probes can be ensured to be distributed in parallel, the electrode spacing is good in controllability, the output voltage is stable, the ablation uniformity is improved, and the residual rate of a focus can be effectively reduced. In addition, the probe fixing device has simple structure and convenient use, and is beneficial to reducing the operation cost.
The technical scheme of the application is further described below:
in one embodiment, at least one end of the fixing rod is provided with a first hook, and the fixing rod is fixed with the fixing frame through a sliding buckle of the first hook; the fixing clamp comprises a clamp seat, a clamp spring rotatably arranged on the clamp seat and two elastic bodies respectively arranged at two ends of the clamp spring, wherein the clamp seat is provided with a second hook, the clamp seat is fixed by the second hook and the fixing rod in a slidable buckle manner, and a clamping cavity for clamping the electrode probe is formed between the clamp spring and the two elastic bodies in a surrounding manner.
In one embodiment, the clamping spring is provided with an oblique convex pattern on one side wall of the clamping cavity.
In one embodiment, the fixing frame comprises a first half frame and a second half frame, the two ends of the first half frame are respectively provided with a first magnetic attraction body, the two ends of the second half frame are respectively provided with a second magnetic attraction body, and the first magnetic attraction bodies are in magnetic attraction fit with the second magnetic attraction bodies.
In one embodiment, the fixing frame further comprises a connector, and the connector comprises a first connector and a second connector which can be connected with each other in a rotating way, and the first connector is connected with the end part of the supporting arm; the second connector is far away from the one end of first connector is provided with third couple and the fourth couple that the interval set up, the third couple with first half frame clasp cooperation, the fourth couple with second half frame clasp cooperation.
In one embodiment, the support arm includes at least two support rods and at least one locking piece, and two support rods are first support rod and second support rod respectively, the one end of first support rod with the fixed frame is connected, and the other end passes through the locking piece with the rotatable lock of one end of second support rod is connected, the other end of second support rod with the mount pad rotatable connection.
In one embodiment, the mounting seat comprises a clamping seat and a base arranged on the clamping seat, the base is provided with a first thread structure, the second support rod is provided with a second thread structure, and the first thread structure is in adaptive screwing connection with the second thread structure.
In one embodiment, the clamping seat comprises a first clamping plate connected with the base, a second clamping plate arranged opposite to the first clamping plate at intervals, and a bolt assembly enabling the first clamping plate and the second clamping plate to be close to or far away from each other, wherein a clamping groove is formed between the first clamping plate and the second clamping plate in a matching mode.
In one embodiment, the side of the first clamping plate and/or the second clamping plate facing the clamping groove is provided with a soft cushion layer.
In one embodiment, the mounting base further comprises a weight mount, the weight mount being mounted between the base and the first clamping plate.
Drawings
Fig. 1 is a schematic view showing the structure of a probe fixing device for percutaneous irreversible electroporation ablation according to an embodiment of the present invention.
Reference numerals illustrate:
100. mounting base, 110, clamping base, 111, first clamping plate, 112, second clamping plate, 113, bolt component, 114, clamping groove, 120, base, 130, counterweight base, 200, supporting arm, 210, supporting rod, 220, locking piece, 300, probe fixing mechanism, 310, fixing frame, 311, first half frame, 312, second half frame, 313, first magnetic attraction body, 314, second magnetic attraction body, 315, connector, 320, fixing rod, 330, fixing clamp, 331, clamping base, 332, clamping spring, 333, elastic body, 400 and soft cushion layer.
Detailed Description
The present invention will be further described in detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted," "disposed," or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the specific manner in which one element is fixedly connected to another element may be achieved by the prior art, and is not described in detail herein, and a threaded connection is preferably used.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" in this specification do not denote a particular quantity or order, but rather are used for distinguishing between similar or identical items.
Irreversible electroporation has great application prospect in primary foci and metastasis foci which can not be resected, but because the ablation range of irreversible electrotransport Kong Xiaorong operation is related to the number of electrode probes, a plurality of needles are often needed to ablate tumors with larger volumes.
Before treatment, an ablation plan is firstly required to be made, specifically, tumor positioning is firstly carried out through CT or MRI, the size of a target tumor is calculated, the tumor ablation range is calculated according to the size of the tumor, then the required number of electrodes is evaluated, and finally the placement position of each electrode is determined. Tumor ablation is realized by selecting the number of ablation needles and a certain needle distribution method. At most 6 monopolar needles can be used simultaneously during operation. And for the treatment criteria: the four-needle mode is suitable for focus with diameter of about 2 cm; the five-needle mode is suitable for focus with diameter of 4 cm; the six-needle mode is suitable for focus of 3.5-4.0 cm. For irreversible electroporation ablation, the electrode configuration determines the distribution of the electric field, which determines the effectiveness of the treatment. Furthermore, parallel insertion of the electrode needle is important, and if the electrodes are not parallel, uneven ablation can be caused, so that the lesion residual probability is increased. Therefore, the positional fixation and parallelism of the electrode probe during surgery are important factors in determining the effect of the surgery.
Based on this, as shown in fig. 1, a probe fixing device for use in percutaneous irreversible electroporation ablation according to an embodiment shown in the present application includes: the device comprises a mounting seat 100, wherein the mounting seat 100 is used for being fixed on a patient bed; a support arm 200, wherein one end of the support arm 200 is disposed on the mounting base 100; and a probe fixing mechanism 300, wherein the probe fixing mechanism 300 comprises a fixing frame 310 connected with the other end of the supporting arm 200, at least one fixing rod 320 movably arranged on the fixing frame 310, and at least two fixing clamps 330 movably arranged on the fixing rod 320.
The probe fixing device is mainly applied to fixing the arrangement positions of at least two electrode probes in percutaneous irreversible electroporation ablation and keeping the mutually parallel postures among the electrode probes. In particular, when in use, the mounting seat 100 is firstly fixed on the side frame of the sickbed without being mounted on the body of a patient, thus reducing the load of the patient; then, the position of the supporting arm 200 is adjusted to enable the probe fixing mechanism 300 to be close to the upper part of the electrode probe which is pre-penetrated in the focus area of the patient for auxiliary fixing; when fixing, the fixing rod 320 is first moved on the fixing frame 310 to make the fixing clip 330 approach the electrode probe, and then different fixing clips 330 are respectively operated to clamp the electrode probe according to the position of the electrode probe. In this way, under the auxiliary fixing action of the external force of the probe fixing mechanism 300 formed by the fixing clip 330, the fixing rod 320 and the fixing frame 310, the electrode probe can be prevented from moving accidentally due to the respiration of a patient, the output of high-voltage current and other reasons, so that the blood vessels, nerves and the like around the tumor are damaged by puncturing, and the occurrence probability of complications is reduced; meanwhile, two adjacent electrode probes can be ensured to be distributed in parallel, the electrode spacing is good in controllability, the output voltage is stable, the ablation uniformity is improved, and the residual rate of a focus can be effectively reduced. In addition, the probe fixing device has simple structure and convenient use, and is beneficial to reducing the operation cost.
It can be understood that the probe fixing device of the technical scheme mainly plays a role of auxiliary electrode probe fixing in operation. That is, during actual operation, firstly, according to the determination of the ablation volume, the electrode placement position and the number by the onboard software, a doctor manually punctures the electrode probe to the skin of the focus area of a patient, and finally, the probe fixing device and all used electrode probes are clamped and fixed, so that the electrode probes are prevented from moving or deflecting accidentally under the restraint action of external force, and the parallelism among the electrode probes is ensured.
In this embodiment, the number of the fixing rods 320 is three, the number of the fixing clips 330 is nine, the three fixing rods 320 are mounted on the fixing frame 310 at intervals and can freely move along the length direction of the fixing frame 310, the three fixing clips 330 are mounted on each fixing rod 320 at intervals, and the three fixing clips 330 can also freely move close to or away from each other along the directions of the two ends of the fixing rod 320. Therefore, the probe fixing mechanism 300 of this structure can simultaneously satisfy simultaneous insertion of 9 electrode probes or less, and is more practical and has a higher usability than a fixing device capable of fixing only one electrode probe.
Of course, the capacity of the probe fixing mechanism can be properly amplified or reduced according to the actual operation requirement, and the capacity is also within the protection scope of the application.
However, it should be noted that, in the above technical solution, a series of operation steps such as installation, adjustment, and clamping and fixing of the probe fixing device are performed manually based on manpower, and there may be problems such as low automation degree, underground efficiency, and precision errors caused by manual operation. Therefore, in a further embodiment, the probe fixing device can be respectively and drivingly connected with the mounting seat, the supporting arm and the probe fixing mechanism by additionally installing a plurality of power mechanisms such as motors and transmission components, so that automatic mounting and positioning, automatic telescopic adjustment and automatic clamping of the probe fixing device for fixing electrode probes are realized, and meanwhile, precision feedback and calibration devices such as sensors and cameras are equipped, so that the overall working precision of the device is further improved.
The use of the probe-immobilization device should have some adjustability to cover a wide variety of different clinical conditions, taking into account the impact of objective factors such as different patient sizes, different prone positions, and different places where lesions appear. With continued reference to fig. 1, in an alternative embodiment, the support arm 200 includes at least two support rods 210 and at least one locking member 220, the two support rods 210 are a first support rod 210 and a second support rod 210, one end of the first support rod 210 is connected to the fixing frame 310, the other end is rotatably locked and connected to one end of the second support rod 210 through the locking member 220, and the other end of the second support rod 210 is rotatably connected to the mounting base 100. Through the mutual rotation of the second support rod 210 and the mounting base 100, the direction and angle of the probe fixing mechanism 300 can be effectively adjusted, and then the first support rod 210 and the second support rod 210 are mutually rotated, and the whole length of the support arm 200 can be further adjusted, so that the probe fixing mechanism 300 can be moved to the position of the electrode probe, so that clamping and fixing can be performed. Therefore, the rotation connection relation between the second support rod 210 and the mounting seat 100, and between the first support rod 210 and the second support rod 210, enables the device to be good in adjustability and controllability, and is suitable for reliable fixing of electrode probes at different positions.
In this embodiment, the four support rods 210 are included, and besides the first and second support rods 210 are respectively connected with the fixed frame 310 and the mounting base 100 in a rotating manner, the four support rods 210 are connected with each other through a revolute pair to form a hinge structure, and the overall length and the spatial position of the support rods 210 can be lengthened or shortened through mutual overturning action, so that the flexibility is high, and the operability is good.
The locking member 220 is optionally a wing screw, screwed with a preset threaded hole on the end of the support rod 210, and when the rotation is required, the wing screw is loosened properly, and the position of two adjacent support rods 210 can be locked and fixed quickly after the adjustment is in place, so that the adjustability is good, and the connection stability and reliability are high.
Of course, other types of connecting and fastening means known in the art may be used for the locking member 220, and are within the scope of the present application.
The mounting base 100 comprises a clamping base 110 and a base 120 arranged on the clamping base 110, the base 120 is provided with a first thread structure, the second support rod 210 is provided with a second thread structure, and the first thread structure is in adaptive screwing connection with the second thread structure. So, through the spiro union of first helicitic texture and second helicitic texture, not only can ensure the joint strength of support arm 200 and mount pad 100, the convenience is installed and removed, can realize simultaneously that the accurate of support arm 200 rotation position adjusts and the fixed in place after the regulation for probe fixed establishment 300 can accurately stop in electrode probe's position department, realizes firm centre gripping.
The base 120 has a hollow circular truncated cone structure, which can reduce the overall weight of the device, and a first thread structure is disposed on the hollow inner wall, so that the base can be assembled and fixed with the second support rod 210.
With continued reference to fig. 1, the clamping seat 110 includes a first clamping plate 111 connected to the base 120, a second clamping plate 112 disposed opposite to the first clamping plate 111 at a distance, and a bolt assembly 113 for enabling the first clamping plate 111 and the second clamping plate 112 to be close to or far away from each other, where a clamping groove 114 is formed between the first clamping plate 111 and the second clamping plate 112 in a matching manner. Therefore, when the probe fixing device is installed, the bolt assembly 113 is adjusted to separate the first clamping plate 111 and the second clamping plate 112 from each other, the size of the clamping groove 114 is enlarged, then the clamping seat 110 is pushed to clamp the edge of the frame of the sickbed into the clamping groove 114, and then the first clamping plate 111 and the second clamping plate 112 are mutually close to each other to clamp the frame when the bolt assembly 113 is adjusted, so that the installation and the fixation of the probe fixing device can be completed. The installation mode of the connecting structure is simple, the operation is convenient and fast, the labor is saved, and the connecting strength is high.
Considering that certain sickbeds are of steel or wooden structures, the clamping force is too high, so that the sickbed can be extruded and damaged to influence the appearance and the service life, or the sickbed can slip to be unstable. Thus, in an alternative embodiment, the side of the first clamping plate 111 and/or the second clamping plate 112 facing the clamping groove 114 is provided with a soft cushion 400. Specifically, the soft cushion 400 is a rubber pad, and the number of soft cushion is two, and the soft cushion is respectively fixed on opposite sides of the first clamping plate 111 and the second clamping plate 112, so that the contact friction force to the bed frame can be increased, the installation firmness is improved, and meanwhile scraping and extrusion damage to the bed frame is reduced.
Further, the mounting base 100 further includes a weight base 130, and the weight base 130 is installed between the base 120 and the first clamping plate 111. The weight seat 130 is a solid structure, for example, it may be an iron block, a steel block, or the like; the whole weight of the mounting seat 100 can be increased, and the phenomenon that the device is inclined to influence normal use due to unstable gravity center caused by overlong extension of the supporting arm 200 or stress when the electrode probe is clamped is prevented.
With continued reference to fig. 1, in any of the foregoing embodiments, at least one end of the fixing rod 320 is provided with a first hook, and the fixing rod 320 is slidably fastened to the fixing frame 310 by the first hook; in this embodiment, the first hooks are disposed at two ends of the fixing rod 320, so that the assembling strength of the fixing rod 320 and the fixing frame 310 can be increased. The fixing clip 330 comprises a clip 331, a clip spring 332 rotatably arranged on the clip 331, and two elastic bodies 333 respectively arranged at two ends of the clip spring 332, the clip 331 is provided with a second hook, the clip 331 is fixed by the second hook and the fixing rod 320 in a sliding and buckling manner, and a clamping cavity for clamping the electrode probe is formed between the clip spring 332 and the two elastic bodies 333 in a surrounding manner. In this way, when the electrode probe is clamped, the two elastic bodies 333 can be pulled in opposite directions to expose and enlarge the clamping cavity, then the electrode probe is sleeved in the clamping cavity and the elastic bodies 333 are loosened, and the electrode probe can be fixed under the surrounding action of the clamping spring 332 and the two elastic bodies 333. The fixing mode can not damage the electrode probe, and flexible clamping can be realized.
The clamping seat 331 is slidably connected with the fixing rod 320 through the second hook, and the fixing rod 320 can slide on the fixing frame 310, so that the fixing clamp 330 can be singly or in linkage adjustment in the X-axis direction and the Y-axis direction in the plane area, the clamping requirements of electrode probes at different positions can be better met, and the usability and the application range of the device can be further improved.
Moreover, the clamping spring 332 can be a U-shaped clamping spring, and the U-shaped clamping spring is in spherical low-pair connection with the clamping seat 331, so that the U-shaped clamping spring can rotate 360 degrees in the vertical direction of the fixing rod 320 or the fixing frame 310 respectively, clamping of the electrode probes in multiple directions and angles is realized, the treatment requirements of different patient positions are met, the adjustable controllability is good, and the use flexibility is good.
Further, the clamp spring 332 is provided with an oblique relief structure (not shown) on one side wall of the clamping cavity. The inclined convex pattern structure can increase the contact friction force of the electrode probe, so that the clamping capacity of the clamping spring 332 on the electrode probe is stronger, and the risk of slipping of the electrode probe from the clamping cavity is reduced.
With continued reference to fig. 1, in an alternative embodiment, the fixing frame 310 includes a first half frame 311 and a second half frame 312, both ends of the first half frame 311 are provided with a first magnetic attraction body 313, both ends of the second half frame 312 are provided with a second magnetic attraction body 314, and the first magnetic attraction body 313 is magnetically attracted to the second magnetic attraction body 314. In actual operation, the electrode probe is clamped by the fixing clamp 330, and then the fixing clamp 330 is mounted on the fixing rod 320, and the movement and the rotation freedom degree in the X-axis direction (or the Y-axis direction and/or the Z-axis direction) are limited by the fixing rod 320, so that the first in-place fixing and the control of the parallelism degree are realized; next, the fixing rod 320 is mounted on the fixing frame 310, and the secondary in-place fixing and parallelism control are achieved by limiting the movement and rotation degrees of freedom in the Y-axis direction (or the Z-axis direction and/or the X-axis direction) by means of the fixing frame 310 (it should be noted that, the limiting effect of the fixing frame 310 is achieved by means of the support arm 200 and the mounting base 100). The magnetic force attraction assembly mode of the first half frame 311 and the second half frame 312 is adopted, so that the assembly with the fixing rod 320 can be more convenient and quick, the connection strength is good, and the assembly and the disassembly are convenient. In addition, the fixing frame 310 is combined after the electrode probe pins, so that the influence of shielding during preoperative assembly on the field of view of the pins can be avoided.
It can be understood that the first magnetic attraction body 313 is a positive pole or a negative pole magnet, and the second magnetic attraction body 314 is a negative pole magnet or a positive pole magnet, respectively, and is fixed by attraction of the positive pole magnet and the negative pole magnet.
Of course, in other embodiments, the first half frame 311 and the second half frame 312 may be connected by using the prior art such as adhesive, snap, etc.
With continued reference to fig. 1, further, the fixing frame 310 further includes a connector 315, where the connector 315 includes a first connector and a second connector that are rotatably connected to each other, and the first connector is connected to an end of the support arm 200; the second connector is far away from the one end of first connector is provided with third couple and the fourth couple that the interval set up, the third couple with first half frame 311 clasp cooperation, the fourth couple with second half frame 312 clasp cooperation. In this way, the connector 315 plays a role in transitional connection to the fixing frame 310 and the supporting arm 200, so that the probe fixing mechanism 300 has better integrity and is more compact; and, connector 315 adopts the clasp mode to be connected with fixed frame 310, and joint strength is high, installs and removes the convenient, the assembly structure of adaptation first half 311 and second half 312 that can be better.
In addition, the first connector and the second connector are particularly connected by adopting a spherical low pair, so that the fixing frame 310, the fixing rod 320 and the fixing clamp 330 can integrally rotate 360 degrees along the direction perpendicular to the central line of the first support rod 210, the probe fixing device can adapt to the fixing requirement of the electrode probe with multiple directions and multiple angles, and the mobility and the flexibility are higher.
The mounting base 100, the support arm 200 and the probe fixing mechanism 300 are all made of nontoxic and odorless polyvinyl chloride, so as to meet the environmental protection and cleaning requirements of medical machinery. Of course, the materials of the above components can be made from other materials selected in the prior art according to the actual needs of those skilled in the art, and the materials are also within the protection scope of the present application.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A probe fixation device for use in percutaneous irreversible electroporation ablation, comprising:
the mounting seat is used for being fixed on the patient bed;
one end of the supporting arm is arranged on the mounting seat; a kind of electronic device with high-pressure air-conditioning system
The probe fixing mechanism comprises a fixing frame connected with the other end of the supporting arm, at least one fixing rod movably arranged on the fixing frame, and at least two fixing clamps movably arranged on the fixing rod, wherein different fixing clamps respectively clamp different electrode probes so as to ensure that the positions of the at least two electrode probes are fixed and kept in parallel;
the fixing clamp comprises a clamp seat, a clamp spring rotatably arranged on the clamp seat and two elastic bodies respectively arranged at two ends of the clamp spring, wherein the clamp seat is provided with a second hook, the clamp seat is fixed by the second hook and the fixing rod in a slidable buckle manner, and a clamping cavity for clamping the electrode probe is formed between the clamp spring and the two elastic bodies in a surrounding manner.
2. The probe fixing device according to claim 1, wherein at least one end of the fixing rod is provided with a first hook, and the fixing rod is slidably fastened to the fixing frame by the first hook.
3. The probe fixation device of claim 2, wherein the clamp spring is provided with an angled relief structure on a side wall of the clamp cavity.
4. The probe fixing device according to claim 1, wherein the fixing frame comprises a first half frame and a second half frame, wherein first magnetic attraction bodies are arranged at two ends of the first half frame, second magnetic attraction bodies are arranged at two ends of the second half frame, and the first magnetic attraction bodies are in magnetic attraction fit with the second magnetic attraction bodies.
5. The probe immobilization apparatus of claim 4 wherein the immobilization frame further comprises a connector comprising a first connector and a second connector rotatably connected to each other, the first connector being connected to an end of the support arm; the second connector is far away from the one end of first connector is provided with third couple and the fourth couple that the interval set up, the third couple with first half frame clasp cooperation, the fourth couple with second half frame clasp cooperation.
6. The probe fixing device according to claim 1, wherein the supporting arm comprises at least two supporting rods and at least one locking piece, the two supporting rods are a first supporting rod and a second supporting rod respectively, one end of the first supporting rod is connected with the fixing frame, the other end of the first supporting rod is rotatably locked and connected with one end of the second supporting rod through the locking piece, and the other end of the second supporting rod is rotatably connected with the mounting seat.
7. The probe fixing device according to claim 6, wherein the mounting base comprises a clamping base and a base arranged on the clamping base, the base is provided with a first thread structure, the second support rod is provided with a second thread structure, and the first thread structure is in adaptive screwing connection with the second thread structure.
8. The probe holder of claim 7, wherein the clamping seat comprises a first clamping plate connected to the base, a second clamping plate disposed opposite the first clamping plate at a distance from the first clamping plate, and a bolt assembly for enabling the first clamping plate and the second clamping plate to be moved closer to or farther from each other, wherein the first clamping plate and the second clamping plate cooperate to form a clamping groove.
9. The probe fixation device according to claim 8, wherein a side of the first clamping plate and/or the second clamping plate facing the clamping groove is provided with a soft cushion layer.
10. The probe fixation device of claim 9, wherein the mount further comprises a weight mount mounted between the base and the first clamp plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810885760.3A CN108969094B (en) | 2018-08-06 | 2018-08-06 | Probe fixing device for percutaneous irreversible electroporation ablation |
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| CN201810885760.3A CN108969094B (en) | 2018-08-06 | 2018-08-06 | Probe fixing device for percutaneous irreversible electroporation ablation |
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| CN108969094B true CN108969094B (en) | 2023-12-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11707320B2 (en) * | 2019-12-24 | 2023-07-25 | Biosense Webster (Israel) Ltd. | Irreversible electroporation (IRE) based on field, contact force and time |
| CN113662655A (en) * | 2021-10-25 | 2021-11-19 | 北京微刀医疗科技有限公司 | Needle distribution plate and needle distribution device of puncture ablation needle and puncture ablation system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340847A (en) * | 2005-12-20 | 2009-01-07 | Dixtal生物制药工业贸易有限公司 | Electrode assembly for electrical impedance tomography |
| CN202184799U (en) * | 2011-07-14 | 2012-04-11 | 张晶 | Retaining clip for electrode needle of microwave ablation therapeutic device and electrode needle |
| CN103083092A (en) * | 2013-03-01 | 2013-05-08 | 张忠荣 | Three-dimensional positioning and guiding device for penetrating vertebral pedicle through skin |
| CN105011970A (en) * | 2015-06-09 | 2015-11-04 | 孙龙 | Fixing device for puncture needle during operation |
| CN207024098U (en) * | 2017-02-22 | 2018-02-23 | 中国医科大学附属盛京医院 | Adjustable abdominocentesis needle fixation device |
| CN108309442A (en) * | 2018-03-28 | 2018-07-24 | 中国人民解放军火箭军总医院 | A kind of needle holder and its application method for radio-frequency ablation electrode needle |
| CN209018929U (en) * | 2018-08-06 | 2019-06-25 | 广州复大医疗有限公司 | For the probe fixture in percutaneous irreversible electroporation ablation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007126827A2 (en) * | 2006-03-30 | 2007-11-08 | Duke University | Optical assay system for intraoperative assessment of tumor margins |
| US20170049503A1 (en) * | 2014-05-15 | 2017-02-23 | Cosman Medical, Inc. | Electrosurgical system |
-
2018
- 2018-08-06 CN CN201810885760.3A patent/CN108969094B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340847A (en) * | 2005-12-20 | 2009-01-07 | Dixtal生物制药工业贸易有限公司 | Electrode assembly for electrical impedance tomography |
| CN202184799U (en) * | 2011-07-14 | 2012-04-11 | 张晶 | Retaining clip for electrode needle of microwave ablation therapeutic device and electrode needle |
| CN103083092A (en) * | 2013-03-01 | 2013-05-08 | 张忠荣 | Three-dimensional positioning and guiding device for penetrating vertebral pedicle through skin |
| CN105011970A (en) * | 2015-06-09 | 2015-11-04 | 孙龙 | Fixing device for puncture needle during operation |
| CN207024098U (en) * | 2017-02-22 | 2018-02-23 | 中国医科大学附属盛京医院 | Adjustable abdominocentesis needle fixation device |
| CN108309442A (en) * | 2018-03-28 | 2018-07-24 | 中国人民解放军火箭军总医院 | A kind of needle holder and its application method for radio-frequency ablation electrode needle |
| CN209018929U (en) * | 2018-08-06 | 2019-06-25 | 广州复大医疗有限公司 | For the probe fixture in percutaneous irreversible electroporation ablation |
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