CN212547197U - Trigeminal dysmenorrhoea round hole puncture radio-frequency pen-holding type stereotaxic puncture device - Google Patents

Trigeminal dysmenorrhoea round hole puncture radio-frequency pen-holding type stereotaxic puncture device Download PDF

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CN212547197U
CN212547197U CN202021710205.6U CN202021710205U CN212547197U CN 212547197 U CN212547197 U CN 212547197U CN 202021710205 U CN202021710205 U CN 202021710205U CN 212547197 U CN212547197 U CN 212547197U
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puncture
needle
pen
radio frequency
round hole
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吴彬彬
张绍波
陈志川
姜晨晨
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Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
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Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
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Abstract

The utility model provides a radio frequency pen-holding type stereotaxic puncture device for trigeminal nerve dysmenorrheal round hole puncture, which mainly comprises a pen holder body part, a radio frequency puncture needle, a propeller and a screwing part. The penholder body is provided with a threaded connection part which can divide the penholder body into an upper part and a lower part, and the propeller fixes the radio frequency puncture needle through the propeller bayonet. The utility model discloses fuse piercing depth with piercing depth and radio frequency pjncture needle as an organic whole, can show the depth of penetration more directly perceivedly to there is specific design to fix the puncture point and the depth of penetration does not change when making the use, has solved the weak point of piercing depth who uses in the past better, and has solved the actual operation problem that more round hole puncture processes met, increases the round hole puncture accuracy, shortens puncture and operation time. The utility model has the advantages of reasonable design, simple manufacture is with low costs, and convenient operation is suitable for popularization and application.

Description

Trigeminal dysmenorrhoea round hole puncture radio-frequency pen-holding type stereotaxic puncture device
Technical Field
The utility model belongs to medical auxiliary equipment relates to when treating trigeminal neuralgia (the second maxillary neuralgia) radiofrequency ablation art clinically, and the puncture auxiliary instrument that the round hole puncture used under the CT guide especially relates to a trigeminal dysmenorrhoea round hole puncture radio holds a formula piercing depth, can fix the puncture point, ensure that the puncture point is unmovable at the puncture in-process and accurate demonstration round hole puncture angle and degree of depth.
Background
Trigeminal neuralgia refers to spontaneous or touch-induced, repetitive paroxysmal shock-like or lightning-like intense pain in the area of trigeminal innervation, referred to as "first-day pain". The pain parts are mainly located on the forehead, cheeks, and mandible, and can be induced by factors such as speaking, eating, washing face, brushing teeth, etc., which seriously affect the life quality of patients. Trigeminal neuralgia can be classified into primary and secondary, wherein the primary is more, the secondary incidence is lower, and the trigeminal neuralgia can be identified by related examination such as skull imaging. The trigeminal nerve is mainly divided into three branches, namely, the ocular branch (first branch), the maxillary branch (second branch), and the mandibular branch (third branch). Primary trigeminal neuralgia may affect one or more branches, with about 4% incidence in the first branch alone, about 17% incidence in the second branch alone, about 15% incidence in the third branch alone, and about 32% incidence in the second and third branches combined. The treatment of primary trigeminal neuralgia is preferably selected from antiepileptic drugs, such as carbamazepine. If the treatment is ineffective or the patient cannot tolerate the side effect of the medicament, the operation treatment is adopted, and comprises open-circuit microvascular decompression, balloon compression, percutaneous foramen ovale approach trigeminal nerve semilunar node radio frequency operation, chemical medicament injection destruction and the like. Wherein the percutaneous foramen ovale approach trigeminal semilunar node radio frequency operation is one of the most common minimally invasive surgery modes for treating trigeminal neuralgia, and an operator selects 2.5-3.0cm outside an affected side corner of a mouth as a puncture point, and a plane where a connecting line of the puncture point and an affected side pupil is located and a cross line of the puncture point and a plane where a connecting line in front of an affected side external ear hole is located are taken as puncture directions. The method is used for more than 100 years, but the needle point position of the puncture needle needs to be repeatedly adjusted in the puncture process, so that the operation time is uncontrollable. In addition, repeated intracranial burley punctures may be required during the procedure, with significant risks of intracranial bleeding, infection, and nerve injury.
In recent years, scholars suggest to treat the second branch pain of the trigeminal nerve by adopting zygomatic arcade entry puncture round hole radio frequency operation, the radio frequency target point of the second branch pain of the trigeminal nerve is changed into a round hole from the semilunar junction and is transferred from the intracranial space to the extracranial space, thereby reducing the risks of intracranial hemorrhage, intracranial infection, nerve injury and the like and improving the safety.
Nevertheless, there is a continuing improvement in the treatment of trigeminal second pain via subzygomatic access puncture round hole radio frequency. A puncture three-dimensional positioning device consisting of a semicircular protractor, a level gauge and a base is adopted in previous clinic to assist the positioning and puncture of a circular hole under the guidance of a CT, a radio frequency puncture needle adopted in previous clinic is thin, an operator is inconvenient to directly hold the puncture needle, the puncture depth cannot be displayed, and a fixed puncture point device is lacked. Repeated CT scans may be required to determine penetration depth, etc. during the scanning process. All the above factors prolong the puncture operation and operation time.
Disclosure of Invention
The utility model aims at providing a trigeminal dysmenorrhoea round hole puncture radio frequency heat congeals holds a formula piercing depth, is a CT guide and holds a formula piercing depth through round hole puncture trigeminal radio frequency heat congeals. The puncture depth positioning device and the puncture needle are integrated, so that the puncture depth can be displayed more visually, and a specific design is adopted, so that a puncture point is fixed and the puncture depth is not changed when the puncture depth positioning device and the puncture needle are used.
The utility model provides a trigeminal dysmenorrhoea round hole puncture radio frequency thermosetting pen-holding type puncture device. The whole device mainly comprises a penholder body 1, a radio frequency puncture needle 2, a propeller 3, a screwing-off part 4 and the like. The pen holder body 1 is 20cm long, a cylindrical cavity with the diameter of 0.7cm is formed inside the pen holder body, a radio frequency puncture needle 2 with the length of 18cm and the inner diameter of 0.35cm can be placed in the cylindrical cavity, scales are arranged on the outer surface of the pen holder body 1, the distance between every two scales is 1.0cm, the minimum scale is 0.1cm, the puncture depth is displayed more accurately, a threaded connection part 5 is arranged at a position 5cm away from the tip of the pen holder body 1, and the pen holder body 1 is divided into an upper part and a lower part. The radio frequency puncture needle 2 is formed by improving a radio frequency puncture needle which is commonly used clinically at present, the radio frequency puncture needle 2 is divided into an outer needle body 8 and an inner needle core 9, the length of the needle body 8 is improved from 10cm to 17.5cm, the inner diameter is still 0.35cm, the tail end of the needle body 8 is a square hand-held connecting block 11 with one side being 0.8cm long and the thickness being 0.3cm, a hollowed-out circle with the diameter being 0.35mm is arranged at the center of the hand-held connecting block 11, the diameter of the hollowed-out circle is matched with that of the needle body 8, a circle of rotating threads (with the thickness of 0.2cm) are arranged in the hollowed-out circle, and the needle; the surface of the needle body 8 is plated with a black heat insulation film for heat insulation, and the tip of the needle body 8 has a length of 0.5cm without being covered with the heat insulation film (exposed end). 2 afterbody of radio frequency pjncture needle is conical handheld 10, and handheld 10 head end is fixed with the 9 tail ends of nook closing member through the welding, and there is a round rotatory screw thread (with the rotatory screw thread matching in the 11 fretwork circles of handheld connecting block) on handheld 10 and 9 junction surfaces of nook closing member, and nook closing member 9 is connected fixedly through this circle rotatory screw thread and needle body 8 after inserting needle body 8 through the 11 center fretwork circles of handheld connecting block. The needle core 9 has a length of 18cm and an inner diameter of 0.3cm, and the bevel tip of the original needle core is reserved. A propeller 3 is arranged at a position 18cm away from the tip of the penholder body 1, the propeller 3 is positioned in a circle with the diameter of 0.5cm in the cavity of the penholder body 1, a conical protrusion with the diameter of 0.2cm and the height of 0.2cm is arranged below the circle, and the conical protrusion is matched with a conical depression with the diameter of 0.2cm and the height of 0.2cm at the top of the tail end of the handheld 10; the side end of the propeller 3 is exposed outside the pen holder body 1 to serve as a finger contact part 6, a vertical concave notch is formed in the pen holder body 1 on one side of the finger contact part 6 to serve as a downward moving track (with the width of 0.2cm) of the finger contact part 6, the upper end of the track is connected to the top end of the pen holder body 1, the lower end of the track is connected to a threaded connection part 5, and the propeller 3 cannot move downward after being pushed to the threaded connection part 5. The thruster 3 is provided with a thruster bayonet 7 which can clamp a conical hand-held 10 and is used for fixing the radio frequency puncture needle 2 during puncture; after the hand 10 is held by the pusher bayonet 7, the radio frequency puncture needle 2 is pushed to move towards the tip by moving the finger contact part 6 downwards. The screwing-off part 4 is arranged at a position 1.5cm away from the tip of the penholder body 1, is trapezoidal, has a long side length of 0.6cm and a height of 0.5cm and a short side length of 0.3cm, is connected with the penholder body 1 through threads, and is fixed when the threads are screwed, and the puncture depth of the puncture needle can be regulated and controlled when the threads are screwed off.
When the puncture needle is used, the propeller bayonet 7 fixes the radio frequency puncture needle 2 through the hand 10 clamping the tail part of the radio frequency puncture needle 2, then the puncture needle positioning is started, after the positioning is finished, the finger pushes the finger contact part 6 of the propeller, the track moves downwards along the finger contact part 6 to enable the puncture needle to move towards the tip direction, the screwing-off part 4 is screwed down when the required puncture depth is reached (the screwing-off part 4 is in a non-screwing state when the target puncture depth is not reached, otherwise, the tip of the radio frequency puncture needle 2 is fixed and the puncture depth cannot be regulated), the puncture needle is fixed, the positioning accuracy is prevented from being influenced by the movement of the tip of the puncture needle after the puncture is finished, then the threaded connection part 5 on the pen holder body 1 is unscrewed, the rotating threads connecting the fixed needle body 8 and the needle core 9 are screwed off, and the parts such as the built, The unscrewing part 4 and the needle body 8. The radio frequency needle is inserted into the needle body 8 through the hollow center in the middle of the handheld connecting block 11, reaches a puncture target point along the needle body, and then the radio frequency instrument is started to start trigeminal nerve radio frequency thermocoagulation.
The radio frequency puncture needle adopted in the existing clinic is thin (the inner diameter is about 0.35mm), an operator is inconvenient to directly hold the radio frequency puncture needle, the puncture depth cannot be displayed, and a fixed puncture point device is lacked. In the scanning process, the CT scanning may be repeatedly carried out to determine the puncture depth and the like, so that the puncture operation and the operation time are prolonged, and the displacement of the positioning position is easy to occur. The utility model discloses a write formula piercing depth has solved the weak point of the location piercing depth who uses in the past better to solve more actual operation problems that the round hole puncture in-process meets, increase the round hole puncture accuracy, shorten puncture and operation time. The utility model has the advantages of reasonable design, simple manufacture is with low costs, and convenient operation is suitable for popularization and application.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the barrel body.
Fig. 3 is a back structure view of the barrel body.
Fig. 4 is a structural schematic diagram of the threaded connection part of the pen holder body.
Fig. 5 is a schematic top view of the pusher.
Figure 6 is a side schematic view of a propeller bayonet.
Fig. 7 is a schematic view of a fixing structure of a pusher bayonet and a tail of a radio-frequency puncture needle.
Fig. 8 is a schematic view of a screw-down portion.
Fig. 9 is a schematic view of a radio frequency puncture needle configuration.
Fig. 10 is a schematic diagram of CT scan plane circular hole puncture.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1-10, the utility model provides a trigeminal dysmenorrheal round hole puncture radio frequency thermosetting pen holding type puncture device. The whole device mainly comprises a penholder body 1, a radio frequency puncture needle 2, a propeller 3, a screw-off part 4 and the like (figure 1). The penholder body 1 is 20cm long, a cylindrical cavity with the diameter of 0.7cm is formed inside the penholder body, and a radio frequency puncture needle 2 with the length of 18cm and the inner diameter of 0.35cm can be placed in the cylindrical cavity; scales (not shown in the figure) are arranged on the upper part and the lower part of the penholder body 1, the distance between every two scales is 1.0cm, and the minimum scale is 0.1cm, so that the puncture depth can be displayed more accurately; a threaded connection part 5 (figure 4) is arranged at a position 5cm away from the tip of the penholder body 1, and the penholder body 1 is divided into an upper part and a lower part. The radio-frequency puncture needle 2 is formed by improving a radio-frequency puncture needle which is commonly used clinically (figure 9), and the radio-frequency puncture needle 2 comprises an outer needle body 8 and an inner needle core 9. The length of the needle body 8 is improved from 10cm to 17.5cm, and the inner diameter is still 0.35 cm; the tail end of the needle body 8 is a square hand-held connecting block 11 with the side length of 0.8cm and the thickness of 0.3cm, a hollowed-out circle with the diameter of 0.35mm is arranged at the center of the hand-held connecting block 11, the diameter of the hollowed-out circle is matched with that of the needle body 8, a circle of rotary threads (with the thickness of 0.2cm) is arranged in the hollowed-out circle, and the needle body 8 and the hand-held connecting block 11 are fixed by welding; the surface of the needle body 8 is plated with a black heat insulation film for heat insulation, and the tip of the needle body 8 has a length of 0.5cm without being covered with the heat insulation film (exposed end). 2 afterbody of radio frequency pjncture needle is conical handheld 10, and handheld 10 head end is fixed with the 9 tail ends of nook closing member through the welding, and there is a round rotatory screw thread (with the rotatory screw thread matching in the 11 fretwork circles of handheld connecting block) on handheld 10 and 9 junction surfaces of nook closing member, and nook closing member 9 is connected fixedly through this circle rotatory screw thread and needle body 8 after inserting needle body 8 through the 11 center fretwork circles of handheld connecting block. The needle core 9 has a length of 18cm and an inner diameter of 0.3cm, and the bevel tip of the original needle core is reserved. A propeller 3 is arranged at a position 18cm away from the tip of the penholder body 1, the propeller 3 is positioned in a circle (figure 5) with the diameter of 0.5cm in the cavity of the penholder body 1, a conical protrusion (figure 6) with the diameter of 0.2cm and the height of 0.2cm is arranged below the circle, and the conical protrusion is matched with a conical recess with the diameter of 0.2cm and the height of 0.2cm at the top of the tail end of the hand-held 10; the side end of the propeller 3 is exposed outside the pen holder body 1 to serve as a finger contact part 6, a vertical concave notch is formed in the pen holder body 1 on one side of the finger contact part 6 to serve as a downward moving track (with the width of 0.2cm) of the finger contact part 6, the upper end of the track is connected to the top end of the pen holder body 1, the lower end of the track is connected to a threaded connection part 5 (figure 3), and the propeller 3 cannot move downward after being pushed to the threaded connection part 5. The thruster 3 is provided with a thruster bayonet 7 which can clamp a conical hand-held 10 and is used for fixing the radio frequency puncture needle 2 (figure 7) during puncture; after the hand 10 is held by the pusher bayonet 7, the radio frequency puncture needle 2 is pushed to move towards the tip by moving the finger contact part 6 downwards. The screwing-off part 4 (figure 8) is arranged at a position 1.5cm away from the tip of the pen holder body 1, is trapezoidal, has the long side length of 0.6cm and the height of 0.5cm and the short side length of 0.3cm, is connected with the pen holder body 1 through threads, and is fixed when the threads are screwed, and the puncture depth of the puncture needle can be regulated and controlled when the threads are screwed off.
When the puncture needle is used, the bayonet 7 of the propeller 3 fixes the radio frequency puncture needle 2 through the hand 10 clamping the tail part of the radio frequency puncture needle 2, then the puncture needle positioning is started, the finger pushes the finger contact part 6 of the propeller after the positioning is finished, the track moves downwards along the finger contact part 6 to enable the puncture needle to move towards the tip direction, the screwing-off part 4 is screwed when the needed puncture depth is reached (the screwing-off part 4 is in a loose state when the target puncture depth is not reached, otherwise the tip of the radio frequency puncture needle 2 is fixed and the puncture depth cannot be regulated), the puncture needle is fixed, the positioning accuracy is prevented from being influenced by the movement of the tip of the puncture needle after the puncture is finished, then the threaded connection part 5 on the pen holder body 1 is unscrewed, and the rotating threads connecting the fixed needle body 8 and the needle core 9 are rotated, so that the built-in needle core, The unscrewing part 4 and the needle body 8. The radio frequency needle is inserted into the needle body 8 through the hollow center in the middle of the handheld connecting block 11, reaches a puncture target point along the needle body, and then the radio frequency instrument is started to start trigeminal nerve radio frequency thermocoagulation.
The pen-holding type puncture device better solves the practical operation problem encountered in the process of puncturing the round hole, increases the accuracy of puncturing the round hole, and shortens the time of puncturing and operating.
Example 2 description of the use of the device
Firstly, positioning: the patient takes the supine position, the pillow is placed under the shoulder, the head is leaned backwards as much as possible, and the lower jaw is fixed by a wide adhesive tape to reduce the head movement in the CT scanning positioning and puncture processes. The CT scanning layer distance is 0.2cm, firstly, CT positioning scanning is carried out, and the layer surface which comprises the inner and outer openings of the round hole and the round hole tube and does not comprise cheekbones and the like for blocking the puncture needle insertion is selected as the optimal puncture layer surface. If the inner and outer openings of the round hole, the round hole tube and the cheekbones are on the same CT scanning level, the half-coronal CT scanning is added so as to better select the puncture level and angle. The junction of the outer part 1/3 in the round hole pipe is used as a target point, a puncture point and a puncture path are drawn by adopting PACS software (INFINITT Healthcare Co., Seoul Korea) configured by an image system, and the puncture depth and angle are determined.
Secondly, determining a needle inlet point: keeping the height of the CT scanning bed unchanged, horizontally adjusting the position of the CT scanning bed to the position of the selected optimal puncture plane in the head-tail direction of the patient, opening the built-in infrared ray of the CT, projecting on the face of the patient, marking the position of the infrared ray projection of the face of the patient by using a marking pen by using a dotted line, and determining the plane as the puncture plane. And taking the junction of the outer 1/3 in the round hole of the determined CT puncture layer as a target point, and taking a point which avoids tissues such as maxillary sinus and the like and extends to the skin as the position of the puncture point.
Thirdly, puncturing: if no bone block exists in the selected puncture path, a straight needle method is selected. Local infiltration anesthesia was performed with 1% lidocaine at the facial puncture site. Adopt the utility model discloses a pen-holding formula piercing depth, during the use, arrange radio frequency pjncture needle 2 in 1 cavity of pen-holder somatic part, fix radio frequency pjncture needle 2 afterbody handhold 10 between propeller bayonet socket 7 to insert the conical salient of 3 poles below of propeller into the conical sunken of radio frequency pjncture needle 2 handhold 10 tail ends, then get into radio frequency pjncture needle 2 from the puncture point. The puncture angle is determined by adopting a puncture three-dimensional positioning device consisting of a semicircular protractor, a level gauge and a base which are clinically used at present, is consistent with the puncture angle determined by CT scanning, and is the actual puncture angle. The scale outside the penholder body 1 can display the depth of the needle insertion. The bayonet 7 of the propeller 3 clamps a hand-held part 10 at the tail part of the radio-frequency puncture needle 2 to position the puncture needle, the left hand pushes a finger contact part 6 of the propeller after the positioning is finished, the puncture needle moves towards the tip direction, the propulsion is stopped when the puncture depth determined by CT scanning is reached, a screwing-off part 4 is screwed (the screwing-off part 4 is in a loosening state when the target puncture depth is not reached, otherwise, the tip part of the radio-frequency puncture needle 2 is fixed and the puncture depth cannot be regulated), the puncture needle is fixed, the change of the needle-entering depth is prevented, and the problem that the tip part of the puncture needle moves. And the CT scanning is performed again to confirm whether the position and the direction of the radio-frequency puncture needle are correct or not, if the position and the direction of the radio-frequency puncture needle are deviated, fine adjustment is performed according to the CT scanning image, and finally the tip of the radio-frequency puncture needle reaches a puncture target point, namely the junction of the outer part 1/3 in the round hole (fig. 10).
And fourthly, testing: the right hand fixed pen-holding piercing instrument tip is then unscrewed from the threaded connection 5 on the barrel body 1 and the rotating threads connecting the fixed needle 8 with the stylet 9, thereby removing the upper portion of the barrel body 1 and the built-in stylet 9 secured by the pusher bayonet 7, leaving the lower portion of the barrel body 1, the unscrewed portion 4 and the needle 8. The radio frequency needle is inserted into the needle body 8 through the hollow circle center in the middle of the hand-held connecting block 11, and reaches a puncture target point along the needle body 8 to perform electrophysiological tests of electrical impedance, feeling and movement. The sensory test takes high-frequency 50Hz, 0.1V, 0.5mA and below which can induce the pain symptoms of the original pain area as the test success standard; the exercise test takes the low frequency of 2Hz, 1.0V, 0.5mA and below as the test success standard, which can induce the muscle twitch of the upper lip and the upper jaw area of the affected side.
Fifthly, radio frequency: after the test is successful, 1.5-2.0mg/kg propofol is statically pushed for anesthesia, a radio frequency instrument is arranged at 90 ℃ for 120s to carry out radio frequency thermocoagulation on the second branch of the trigeminal nerve, and the cycle is repeated for 2-3 times, so that the change of the vital signs of the patient is closely monitored. And after the radio frequency is finished, waiting for the patient to wake up, testing the sensory change of the affected trigeminal nerve and maxillary branch innervation area, and judging whether the original trigeminal neuralgia disappears. If the pain still exists, the CT scanning is carried out again to determine the position of the radio frequency needle, and the radio frequency heat coagulation is carried out again, until the pain of the original pain area of the patient disappears. Then the patient is observed on the treatment bed for 30 minutes without discomfort and with steady vital signs, and the patient returns to the ward.

Claims (8)

1. A radio frequency pen-holding type three-dimensional positioning puncture device for trigeminal dysmenorrheal circular hole puncture is characterized by mainly comprising a pen holder body (1), a radio frequency puncture needle (2), a propeller (3) and a screwing-off part (4), wherein the pen holder body (1) is 20cm long, a cylindrical cavity with the diameter of 0.7cm is arranged inside the pen holder body, scales are arranged on the outer surface of the pen holder body (1), a threaded connection part (5) is arranged at a position 5cm away from the tip of the pen holder body (1), the pen holder body (1) is divided into an upper part and a lower part, the radio frequency puncture needle (2) is divided into an external needle body (8) and a built-in needle core (9), the tail end of the needle body (8) is a square hand-holding connecting block (11) with the side length of 0.8cm and the thickness of 0.3cm, a hollowed-out circle with the diameter of 0.35mm is arranged at the center of the hand-, a circle of rotary screw thread is arranged in the hollowed-out circle, the needle body (8) and the hand-holding connecting block (11) are fixed by welding, a black heat insulation film is plated on the surface of the needle body (8), the tip of the needle body (8) is 0.5cm long and does not cover the heat insulation film, the tail of the radio-frequency puncture needle (2) is a conical hand-holding (10), the head of the hand-holding (10) is fixed with the tail end of the needle core (9) by welding, the surface of the joint of the hand-holding (10) and the needle core (9) is provided with a circle of rotary screw thread which is matched with the rotary screw thread in the hollowed-out circle of the hand-holding connecting block (11), the needle core (9) is 18cm long and 0.3cm in inner diameter, the inclined plane tip of the original needle core is reserved, a propeller (3) is arranged at a position 18cm away from the tip of the pen holder (1), the propeller (3) is a circle with a diameter of 0.5cm in the, the side of propeller (3) exposes outside pen-holder somatic part (1), as finger contact portion (6), pen-holder somatic part (1) of finger contact portion (6) one side is opened has a perpendicular shape notch wide 0.2cm, moves down the track as finger contact portion (6), propeller (3) are equipped with propeller bayonet socket (7), be used for cliping conical handheld hand (10), be equipped with at the most advanced 1.5cm department of pen-holder somatic part (1) and revolve down part (4), be trapezoidal, it is connected with pen-holder somatic part (1) through the screw thread to revolve down part (4).
2. The radio frequency pen-holding type stereotactic puncture device for trigeminal dysmenorrheal round hole puncture according to claim 1, wherein the scales are arranged on the outer surface of the pen holder body (1), the distance between every two scales is 1.0cm, and the minimum scale is 0.1 cm.
3. The radio frequency pen-holding type stereotactic puncture device for round hole puncture of trigeminal nerve dysmenorrhea according to claim 1, wherein the radio frequency puncture needle (2) has a length of 18cm and an inner diameter of 0.35 cm.
4. The trigeminal dysmenorrhoea round hole puncture radio-frequency pen-holding type stereotaxic puncture device according to claim 1, wherein the length of the needle body (8) is 17.5cm, and the inner diameter is 0.35 cm.
5. The radio frequency pen-holding type stereotactic puncture device for trigeminal nerve dysmenorrhea round hole puncture according to claim 1, wherein the pen holder body (1) is provided with a vertical concave notch, the upper end of the vertical concave notch is connected to the top end of the pen holder body (1), and the lower end of the vertical concave notch is connected to the threaded connection part (5).
6. The radio frequency pen-holding type stereotactic puncture device for round hole puncture of trigeminal nerve dysmenorrhea according to claim 1, wherein the unscrewing part (4) is trapezoidal, and has a long side of 0.6cm, a height of 0.5cm and a short side of 0.3 cm.
7. The radio frequency pen-holding type stereotactic puncture device for trigeminal dysmenorrheal round hole puncture according to claim 1, wherein the needle core (9) is fixed with the needle body (8) through a rotary thread in a hollow circle at the center of the hand-held connecting block (11).
8. The radio frequency pen-holding type stereotactic puncture device for round hole puncture of trigeminal dysmenorrhea according to claim 1, wherein the conical protrusion of the pusher (3) matches with a conical depression with a diameter of 0.2cm and a height of 0.2cm at the top of the tail end of the hand-held (10).
CN202021710205.6U 2020-08-17 2020-08-17 Trigeminal dysmenorrhoea round hole puncture radio-frequency pen-holding type stereotaxic puncture device Active CN212547197U (en)

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CN202021710205.6U CN212547197U (en) 2020-08-17 2020-08-17 Trigeminal dysmenorrhoea round hole puncture radio-frequency pen-holding type stereotaxic puncture device

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Application Number Priority Date Filing Date Title
CN202021710205.6U CN212547197U (en) 2020-08-17 2020-08-17 Trigeminal dysmenorrhoea round hole puncture radio-frequency pen-holding type stereotaxic puncture device

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