CN215079413U - Microwave ablation needle positioning device - Google Patents
Microwave ablation needle positioning device Download PDFInfo
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- CN215079413U CN215079413U CN202120821136.4U CN202120821136U CN215079413U CN 215079413 U CN215079413 U CN 215079413U CN 202120821136 U CN202120821136 U CN 202120821136U CN 215079413 U CN215079413 U CN 215079413U
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- microwave ablation
- ablation needle
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Abstract
A microwave ablation needle positioning device, comprising: the device comprises a base, an X-direction position adjusting seat, a Z-direction adjusting seat, an angle adjusting seat and a clamping and fixing structure, wherein the Z-direction adjusting seat is provided with a cylindrical through hole arranged in the Z-axis direction, and an angle adjusting shaft arranged at the back of the angle adjusting seat and arranged along the Z-axis direction is inserted into the cylindrical through hole in a penetrating manner so as to realize the rotating fit of the angle adjusting seat and the Z-direction adjusting seat; the one end that angle modulation seat was kept away from to the angle modulation axle articulates there is fast lock handle, locks angle modulation seat and Z through this fast lock handle to adjusting the seat locking, realizes the angular positioning of angle modulation seat. The utility model discloses microwave ablation needle positioner compares CN 111920516A and has add the position adjustment function and the additional locking function of Z axle direction, and the tight structure improvement of clamp is quick locking handle with original circular arc in addition. The utility model discloses having carried out ingenious combination with Z axle direction mediation mechanism and angle locking mechanism, greatly improved the convenience of using this device to compact structure is convenient for produce and assemble.
Description
Technical Field
The application relates to a microwave ablation needle positioning device which is used for positioning a microwave ablation needle when microwave ablation is carried out under the guidance of CT.
Background
With the increasing incidence of malignant tumors year by year, medical experts are actively engaged in developing and exploring various methods capable of effectively treating cancers, including surgical resection, drug therapy, radiotherapy and interventional therapy, and microwave ablation is widely applied to tumor treatment by virtue of the remarkable characteristics of minimal invasion, accuracy, high efficiency and small toxic and side effects.
The microwave ablation device can directly puncture a microwave ablation needle to a tumor part under the guidance of a CT image, polar molecules in tissues move at a high speed under the action of a microwave field and rub with each other to generate heat, the temperature in the tumor is rapidly increased, when the temperature is increased to about 60 ℃, cancer cell proteins are denatured and solidified to cause irreversible necrosis, and the tumor is inactivated in situ.
At present, in the microwave ablation treatment process, after a microwave ablation needle is inserted into a cancer focus in a patient body, medical staff needs to perform related fixing work by hands in order to avoid the microwave ablation needle from deflecting and sliding downwards, and the labor intensity of the medical staff is greatly improved by adopting the mode.
In addition, when medical personnel introduce the microwave ablation needle into the body of a patient, the puncture positioning device is not available, the puncture angle cannot be accurately controlled in the puncture process, the error is large, and the puncture is prone to being inaccurate, so that great inconvenience is brought to the treatment work of tumors.
Therefore, the applicant filed an invention patent application CN 111920516 a to the national Bureau in 2020, and relates to a positioning and fixing device for a microwave ablation needle under CT guidance, which can quickly adjust the microwave needle to a correct puncture angle, puncture depth and puncture plane under CT guidance, and can effectively fix the microwave ablation needle after the microwave ablation needle is punctured to a cancer focus in a patient, thereby effectively reducing the labor intensity of medical care personnel.
The application is a further improvement on the patent, and comprises the increase of adjustment in the Z-axis direction, so that the device is more adaptive. In addition, the angle locking structure is improved, so that the angle locking is more convenient and faster.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: overcomes the defects of the prior art, provides a microwave ablation needle positioning device capable of realizing the adjustment of an X axis and a Z axis, and is provided with an angle quick locking mechanism.
In order to achieve the above object of the present invention, the utility model provides a microwave ablation needle positioning device, include: the X-direction positioning device comprises a base, an X-direction position adjusting seat, an angle adjusting seat and a clamping and fixing structure; the X-direction position adjusting seat is arranged in an X-direction chute of the base in a sliding manner, and the angle adjusting seat can rotatably adjust the angle relative to the X-direction position adjusting seat and is provided with a puncture positioning hole for allowing the microwave ablation needle to penetrate through; the clamping and fixing structure is fixed on the angle adjusting seat and is used for clamping a needle rod of the microwave ablation needle; it is characterized by also comprising: the Z-direction adjusting seat is slidably arranged above the X-direction position adjusting seat along the Z direction, and is provided with a cylindrical through hole arranged along the Z-axis direction, and an angle adjusting shaft along the Z-axis direction is arranged at the back of the angle adjusting seat and is penetratingly inserted into the cylindrical through hole of the Z-direction adjusting seat, so that the angle adjusting seat is in rotating fit with the Z-direction adjusting seat; the one end that angle modulation seat was kept away from to the angle modulation axle articulates there is fast lock handle, locks angle modulation seat and Z through this fast lock handle to adjusting the seat locking, realizes the angular positioning of angle modulation seat.
The utility model discloses microwave ablation needle positioner compares CN 111920516A and has add the position adjustment function and the additional locking function of Z axle direction, and the tight structure improvement of clamp is quick locking handle with original circular arc in addition. The utility model discloses having carried out ingenious combination with Z axle direction mediation mechanism and angle locking mechanism, greatly improved the convenience of using this device to compact structure is convenient for produce and assemble.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural diagram of a microwave ablation needle positioning device according to an embodiment of the present application.
Fig. 2 is an exploded view of a microwave ablation needle positioning device according to an embodiment of the present application.
The numbers in the figures are as follows:
100-base, 110-X direction chute, 111-X direction scale mark, 120-adhesive tape positioning groove;
the device comprises a 200-X-direction position adjusting seat, a 210-X-direction sliding block, a 211-threaded hole, a 220-box body, a 221-sliding hole, a 222-Z-direction sliding groove, 223-Z-direction scale marks and a 230-X-direction locking screw;
300-an angle adjusting seat, 310-a puncture positioning hole, 320-an angle adjusting shaft, 330-a quick locking handle, 331-a hinge pin shaft, 332-an eccentric cam and 333-a pressing part;
400-reference plane positioning piece, 410-positioning reference plane, 420-puncture angle dial;
500-Z direction adjusting seat, 510-cylindrical through hole and 520-Z direction locking screw;
800-clamping and fixing structure.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1-2, a positioning device for a microwave ablation needle is shown, which comprises a base 100, an X-direction position adjusting seat 200, an angle adjusting seat 300 and a clamping and fixing structure 800.
The base 100 is used for being fixed at a position where a patient needs to puncture through the adhesive tape positioning groove 120, the base 100 is provided with an X-direction sliding groove 110 along the length direction thereof, the X-direction position adjusting seat 200 can be used for adjusting the position thereof on the base 100, and the lower end of the X-direction position adjusting seat 200 is provided with an X-direction sliding block 210 capable of sliding along the X-direction sliding groove 110.
The clamping fixing structure 800 is fixed on the angle adjusting seat 300 and is used for clamping and fixing a needle rod for clamping a microwave ablation needle, the clamping fixing structure 800 comprises length-adjustable supporting rods which are symmetrically arranged on two sides of the puncture positioning hole 310 and the length of which can be adjusted, the axes of the length-adjustable supporting rods and the axis of the puncture positioning hole 310 are positioned on the same plane, an inserting positioning foot is hinged to the lower end of the length-adjustable supporting rod 810, one end of the inserting positioning foot is opened and detached to be inserted in an inserting groove formed in the angle adjusting seat, and the other end of the inserting positioning foot is hinged to the lower end of the length-adjustable supporting rod.
The Z-direction adjusting seat 500 is used for adjusting the Z-axis direction of the Z-direction adjusting seat on the base 100, the Z-direction adjusting seat 500 is slidably arranged above the X-direction position adjusting seat 200 along the Z direction, the Z-direction adjusting seat 500 is provided with a cylindrical through hole 510 along the Z-axis direction, an angle adjusting shaft 320 is arranged in the cylindrical through hole 510 in a penetrating manner, and the angle adjusting seat 300 is rotatably matched with the Z-direction adjusting seat 500; the Z-direction adjusting base 500 is locked with the angle adjusting base 300 by the quick locking handle 330, so as to realize the angle positioning of the angle adjusting base 300.
A box body 220 is provided above the X-direction position adjusting base 200, the box body 220 has a slide hole 221 for accommodating the Z-direction adjusting base 500 and sliding in the Z-direction, and the Z-direction adjusting base 500 is inserted into the slide hole 221.
A radial screw hole is formed in the Z-direction adjusting seat 500, a stud portion of a Z-direction locking screw 520 penetrates through the Z-direction sliding groove 222 formed in the box body 220 and then is screwed into the radial screw hole, and the Z-direction locking screw 520 is tightened to enable a shoulder portion of the Z-direction locking screw 520 to abut against the outer wall of the Z-direction sliding groove 222 of the box body 220, so that fastening between the Z-direction adjusting seat 500 and the box body 220 is achieved.
Z-direction scale marks 223 are provided on both sides of the Z-direction chute 222 of the case 220.
When the quick locking handle 330 is in the locking position, the rear vertical surface of the angle adjusting base 300 is tightly abutted against the front vertical surface of the Z-direction adjusting base 500; when the quick lock handle 330 is in the unlocked position, the angle adjustment shaft 320 can rotate within the Z-adjustment base 500.
The quick-lock handle 330 has an eccentric cam 332 fixed to the hinge pin 331 and a pressing portion 333 connected to the eccentric cam 332, and the eccentric cam 332 is engaged with the rear surface of the Z-direction adjustment base 500.
The base 100 is provided with an X-direction sliding groove 110, the X-direction position adjusting seat 200 is provided with an X-direction sliding block 210 which is arranged on the X-direction sliding groove 110 in a sliding manner, the X-direction sliding block 210 is provided with an X-direction locking screw 230 through a threaded hole 211, and the head of the screw of the X-direction locking screw 230 is tightly abutted against the bottom of the X-direction sliding groove 110, so that the X-direction position adjusting seat 200 is fastened with the base 100.
The reference surface positioning piece 400 is used for confirming the puncture reference surface under the CT guidance, the reference surface positioning piece 400 has a positioning reference surface 410 coplanar with the puncture positioning hole 310, the reference surface positioning piece 400 is fixed with the Z-direction adjusting seat 500, the puncture angle dial 420 of the reference surface positioning piece 400, the reference surface positioning piece 400 and the puncture angle dial 420 are sleeved and fixed at the front part of the Z-direction adjusting seat 500.
To sum up the utility model discloses microwave ablation needle positioner has add the position adjustment function and the additional locking function of Z axle direction, presss from both sides tight structural improvement of original circular arc for quick locking handle in addition. The utility model discloses having carried out ingenious combination with Z axle direction mediation mechanism and angle locking mechanism, greatly improved the convenience of using this device to compact structure is convenient for produce and assemble.
The device has the following operation procedures: when the device is used, firstly, the base 100 is fixed on the position of the patient needing puncture through the adhesive tape and the adhesive tape positioning groove 120, and then three parameters are adjusted:
adjusting in the X direction: the sliding block 210 sliding the X-direction position adjusting base 200 realizes the adjustment of the angle adjusting base 300 in the X-direction.
And (3) Z-direction adjustment: the Z-direction adjustment base 500 is pushed and pulled to slide in the slide hole 221 of the case 22, thereby realizing the adjustment of the angle adjustment base 300 in the Z direction.
Angle adjustment: the angle adjusting base 300 is rotated around the angle adjusting shaft 320 to adjust the angle of the puncture positioning hole 310, i.e., the puncture angle of the puncture needle.
The three parameters are not adjusted in sequence and can be adjusted according to actual conditions. After the adjustment and positioning, the positioning is carried out through a locking device (a locking screw and a quick locking handle), and the locking and positioning can also be carried out step by step in the adjustment process, so that the puncture needle can stably puncture into the focus.
After the positioning of the device is completed, the microwave ablation needle penetrates through the puncture positioning hole 310 to pierce into the focus of the patient, and then the needle rod of the microwave ablation needle is clamped and fixed by the clamping and fixing structure 800. After the microwave ablation needle is firmly fixed, microwave energy is loaded on the microwave ablation needle, and then microwave ablation treatment is carried out.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A microwave ablation needle positioning device, comprising:
-a base (100),
-an X-direction position adjustment seat (200) slidably arranged in an X-direction chute (110) of the base (100);
-an angle adjustment base (300) rotatably adjustable with respect to the X-position adjustment base (200) and having a puncture positioning hole (310) for passing a microwave ablation needle therethrough;
-a holding fixture (800) fixed to the angle adjustment seat (300) for holding a needle shaft of the microwave ablation needle;
it is characterized by also comprising:
a Z-direction adjusting seat (500) which is arranged above the X-direction position adjusting seat (200) in a sliding way along the Z direction and is provided with a cylindrical through hole (510) arranged along the Z-axis direction,
the back of the angle adjusting seat (300) is provided with an angle adjusting shaft (320) along the Z-axis direction, and the angle adjusting shaft (320) is penetratingly inserted into the cylindrical through hole (510) of the Z-direction adjusting seat (500) to realize the rotating fit of the angle adjusting seat (300) and the Z-direction adjusting seat (500);
the one end that angle modulation axle (320) kept away from angle modulation seat (300) articulates there is quick lock handle (330), locks angle modulation seat (300) and Z through this quick lock handle (330) to adjusting seat (500) locking, realizes the angle location of angle modulation seat (300).
2. A microwave ablation needle positioning device according to claim 1, wherein: a box body (220) is arranged above the X-direction position adjusting seat (200), the box body (220) is provided with a sliding hole (221) which is used for accommodating the Z-direction adjusting seat (500) and slides along the Z direction, and the Z-direction adjusting seat (500) penetrates through the sliding hole (221).
3. A microwave ablation needle positioning device according to claim 2, wherein: the Z-direction adjusting seat (500) is provided with a radial screw hole, a stud part of a Z-direction locking screw (520) penetrates through a Z-direction sliding groove (222) arranged on the box body (220) and then is screwed into the radial screw hole, and the Z-direction locking screw (520) is screwed down to enable the shoulder part of the Z-direction locking screw (520) to be abutted against the outer wall of the Z-direction sliding groove (222) of the box body (220), so that the Z-direction adjusting seat (500) and the box body (220) are fastened.
4. A microwave ablation needle positioning device according to claim 3, wherein: z-direction scale marks (223) are arranged on two sides of the Z-direction sliding groove (222) of the box body (220).
5. A microwave ablation needle positioning device according to claim 1, wherein: when the quick locking handle (330) is in the locking position, the rear vertical surface of the angle adjusting seat (300) is tightly propped against the front vertical surface of the Z-direction adjusting seat (500); when the quick locking handle (330) is in the unlocking position, the angle adjusting shaft (320) can rotate in the Z-direction adjusting seat (500).
6. A microwave ablation needle positioning device according to claim 1, wherein: the quick locking handle (330) is provided with an eccentric cam (332) fixed on the hinge pin shaft (331) and a pressing part (333) connected with the eccentric cam (332), and the eccentric cam (332) is matched with the rear vertical surface of the Z-direction adjusting seat (500).
7. A microwave ablation needle positioning device according to claim 1, wherein: the X-direction sliding groove (110) is formed in the base (100), the X-direction position adjusting seat (200) is provided with an X-direction sliding block (210) which is arranged in the X-direction sliding groove (110) in a sliding mode, an X-direction locking screw (230) is arranged on the X-direction sliding block (210) through a threaded hole (211), the head of a screw of the X-direction locking screw (230) abuts against the bottom of the X-direction sliding groove (110), and fastening between the X-direction position adjusting seat (200) and the base (100) is achieved.
8. A microwave ablation needle positioning device according to claim 7, wherein: x-direction scale marks (111) are arranged on the upper surfaces of two sides of the X-direction sliding groove (110) of the base (100).
9. A microwave ablation needle positioning device according to claim 1, wherein: the puncture positioning device further comprises a reference surface positioning piece (400), wherein the reference surface positioning piece (400) is provided with a positioning reference surface (410) coplanar with the puncture positioning hole (310), and the reference surface positioning piece (400) is fixed with the Z-direction adjusting seat (500).
10. A microwave ablation needle positioning device according to claim 9, wherein: the puncture angle dial (420) is also provided with a reference surface positioning piece (400), and the reference surface positioning piece (400) and the puncture angle dial (420) are sleeved and fixed at the front part of the Z-direction adjusting seat (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120821136.4U CN215079413U (en) | 2021-04-21 | 2021-04-21 | Microwave ablation needle positioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120821136.4U CN215079413U (en) | 2021-04-21 | 2021-04-21 | Microwave ablation needle positioning device |
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| CN215079413U true CN215079413U (en) | 2021-12-10 |
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| CN202120821136.4U Active CN215079413U (en) | 2021-04-21 | 2021-04-21 | Microwave ablation needle positioning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113143417A (en) * | 2021-04-21 | 2021-07-23 | 上海市肺科医院 | Microwave ablation needle positioning device |
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2021
- 2021-04-21 CN CN202120821136.4U patent/CN215079413U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113143417A (en) * | 2021-04-21 | 2021-07-23 | 上海市肺科医院 | Microwave ablation needle positioning device |
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