CN109984825A - One kind puncturing intervention guiding mechanism for CT - Google Patents

One kind puncturing intervention guiding mechanism for CT Download PDF

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Publication number
CN109984825A
CN109984825A CN201910260861.6A CN201910260861A CN109984825A CN 109984825 A CN109984825 A CN 109984825A CN 201910260861 A CN201910260861 A CN 201910260861A CN 109984825 A CN109984825 A CN 109984825A
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CN
China
Prior art keywords
ring
guiding
along
puncture
deflecting plates
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Granted
Application number
CN201910260861.6A
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Chinese (zh)
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CN109984825B (en
Inventor
韦宏敏
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Wuhu No 2 Peoples Hospital
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Wuhu No 2 Peoples Hospital
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Filing date
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Priority to CN201910260861.6A priority Critical patent/CN109984825B/en
Publication of CN109984825A publication Critical patent/CN109984825A/en
Application granted granted Critical
Publication of CN109984825B publication Critical patent/CN109984825B/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3403Needle locating or guiding means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03Computerised tomographs
    • A61B6/032Transmission computed tomography [CT]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03Computerised tomographs
    • A61B6/032Transmission computed tomography [CT]
    • A61B6/035Mechanical aspects of CT

Abstract

The invention belongs to medical instruments fields, it is especially a kind of to puncture intervention guiding mechanism for CT, for Needle localization trouble, the problem of guiding puncture inconvenience, it is proposed that following scheme, including fixed plate, fixed plate offers the window being arranged along its length, regulating mechanism, regulating mechanism, the deflecting plates including arc-shaped structure are provided with above window opening, the both ends of deflecting plates are fixedly connected with shaft, and the side movable sleeve that two groups of shafts are located remotely from each other is connected to the expansion plate circumferentially rotated along it.The present invention can adjust the fixed position of puncture needle bottom syringe needle, syringe needle is set to be always positioned at the over top of mark position when adjusting and puncturing direction simultaneously, it improves and punctures precision, avoid secondary positioning operation, it can be adjusted when puncturing and puncture direction and paracentesis depth, puncture direction and depth are fixed simultaneously, reducing in operation is the damage for making puncture needle to patient because of shaking, improves and punctures precision and safety.

Description

One kind puncturing intervention guiding mechanism for CT
Technical field
The present invention relates to the field of medical instrument technology, more particularly to a kind of CT that is used for puncture intervention guiding mechanism.
Background technique
CT interventional technique is to carry out CT using CT as fine needle aspiration biopsy or a kind of technology of the guide device for the treatment of When intervention operation, patient is scanned initial survey first with CT equipment, and Scanning Detction goes out patient's sufferer position, then basis The state of an illness of patient is analyzed, and obtains the puncture position, paracentesis depth and puncture angle of operation, according to formulation operation plan It performs the operation, due to there is no guiding mechanism or guiding mechanism function simple when operation, causes to wear when puncturing Thorn depth, puncture position and puncture angle are improper, keep the precision of operation low, surgical effect troublesome in poeration is low;
Application No. is a kind of CT that CN201520633304.1 is recorded to puncture accurate location device, including locking unit A, cunning Road, arc support rod, locking unit B, hand lever, pedestal, sunpender, manual knob, lead screw A, bracket, guidance needle, needle stand, lead screw B and fixture block, slideway are in the top of arc support rod, and fixture block is mounted in slideway, and locking unit A and sunpender are separately mounted to press from both sides The upper and lower ends of block, lead screw B is mounted on the lower end of sunpender and its lower end is equipped with bracket, and lead screw A is rack-mount and its is left Right both ends are separately installed with needle stand and manual knob, and the lower end of arc support rod is mounted on the base, locking unit B and hand lever It is left and right symmetrically arranged respectively in the lower part of arc support rod, guides needle to be mounted in needle stand, which can be to a certain extent The angle of puncture needle is adjusted, but puncture needle can not be positioned, so that puncture needle is in mark point position, needs one kind thus Intervention guiding mechanism is punctured for CT.
Summary of the invention
It is proposed by the present invention a kind of for CT puncture intervention guiding mechanism, solve Needle localization trouble, guiding puncture Inconvenient problem.
To achieve the goals above, present invention employs following technical solutions:
One kind puncturing intervention guiding mechanism for CT, including fixed plate, the fixed plate offer along its length The window of setting, the window opening top are provided with regulating mechanism, the regulating mechanism, the deflection including arc-shaped structure Plate, the both ends of the deflecting plates are fixedly connected with shaft, and the side movable sleeve that shaft described in two groups is located remotely from each other was connected to along its week To the expansion plate of rotation, the middle position movable sleeve of the expansion plate is connected to the tie rod along the setting of its axis direction, the drawing Tight bar is provided with switching mechanism close to one end of deflecting plates, and the tie rod is offered far from one end of deflecting plates along its diameter side To the channel of setting, the retaining mechanism being internally provided with for locking in the channel is offered on the deflecting plates along its length The guiding channel of direction setting is spent, the inner ring of the guiding channel offers the cavity of ring structure, and the inside of the cavity is living It is dynamic to be socketed with two groups of push plates disposed in parallel, and push plate is located at the two sides of guiding channel, deflecting plates setting is advanced for puncture needle Propulsive mechanism.
Preferably, the switching mechanism includes the connecting rod with tie rod pivot bush unit, and the connecting rod protrudes into cavity One end be fixedly connected be located at be arranged between two groups of push plates the first push rod, push plate offered close to one end of the first push rod side The promotion slot being obliquely installed pushes the side of slot to offer the first limiting slot along the setting of push plate length direction, and the first limit Slot and the first push rod pivot bush unit, the side that two groups of push plates are located remotely from each other are provided with the first spring contradicted with cavity inner sidewall, Connecting rod and shaft pivot bush unit.
Preferably, the retaining mechanism offers along the symmetrically arranged briquetting of tie rod, two groups of briquettings including two groups and inclines The promotion channel being tiltedly arranged pushes the internal activity in channel to be socketed with the second push rod of L-type structure, and the second push rod is stretched out and pushed The one end in channel is fixedly connected with tie rod, and the side that two groups of briquettings are located remotely from each other is fixedly connected with the fixture block of array setting, and Fixture block is that pyramid structure briquetting is slidably socketed with channel.
Preferably, the expansion plate offers the holding tank with shaft pivot bush unit close to one end of deflecting plates, and shaft is stretched The one end for entering holding tank is provided with the retaining ring being fixedly attached with tie rod outer ring, and retaining ring is welded with close to one end of shaft and shaft The guiding bar of pivot bush unit, retaining ring are welded with the movable latch along the setting of its axial array far from one end of shaft, holding tank Inner sidewall offers the first card slot along shaft axis array distribution, and the first card slot and movable latch are clamped.
Preferably, the propulsive mechanism includes the movable frame with deflecting plates pivot bush unit, is fixedly attached at the top of movable frame There is guiding tube, the outer ring movable sleeve that guiding tube stretches out at the top of movable frame is connected to rotational lantern ring, and the two sides of the bottom of rotational lantern ring are fixed It is connected with poke rod, the outer ring movable sleeve that guiding tube stretches out mobile frame bottom is connected to stuck lantern ring, and stuck lantern ring and poke rod are solid Fixed connection, the inner ring that poke rod is located at cavity are fixedly connected with slide block, and the movable sleeve of guiding tube, which is connected to, protrudes into casing, protrudes into set The two sides outer ring of pipe is welded with the bootstrap block being arranged along its length, the restricted set of top outer ring pivot bush unit of guiding tube Ring.
Preferably, the top inner ring of the limitation lantern ring is welded with along its symmetrically arranged blocking latch, and bootstrap block is separate The side for protruding into casing offers the blocking card slot being placed equidistant with along its length, and stops card slot and stop latch clamping, protrudes into The top outer ring fixing sleeve of casing is connected to promotion ring, and the inner ring of guiding tube offers the blocking slot with bootstrap block pivot bush unit.
Preferably, the bottom of the deflecting plates is welded with the rack gear for the arcuate structure being arranged along its length, on rack gear Tooth be arc-shaped structure, the inner ring and outer ring at the top of stuck lantern ring offers the guiding groove of ring structure, stuck lantern ring with Tooth clamping on rack gear, the cross section of stuck lantern ring is U-shaped structure, is provided with second spring between stuck lantern ring and deflecting plates.
Preferably, the two sides inner sidewall of the window offers the sliding slot being arranged along its length, the top of sliding slot and Bottom inside wall offers the inner groovy of array setting, and inner groovy and fixture block are clamped.
In the present invention,
By the fixed plate of setting, window, regulating mechanism, deflecting plates, shaft, expansion plate, tie rod, switching mechanism, lead to Road, retaining mechanism, guiding channel, cavity, propulsive mechanism, switching slot, holding tank, connecting rod, the first push rod, push plate, retaining ring, the Two push away and briquetting, can adjust the fixed position of puncture needle bottom syringe needle, make syringe needle close to label in patient body-surface mark position, together When so that syringe needle is always positioned at the over top of mark position when adjusting and puncturing direction, improve and puncture precision, avoid secondary Positioning operation;
By the movable frame of setting, rotational lantern ring, poke rod, guiding tube, stuck lantern ring, protrude into casing, push lantern ring, draw Guide block and limitation lantern ring, can adjust when puncturing and puncture direction and paracentesis depth;
The invention can adjust the fixed position of puncture needle bottom syringe needle in summary, make syringe needle close to label in patient body-surface Mark position, while so that syringe needle is always positioned at the over top of mark position when adjusting and puncturing direction, it improves and punctures essence Degree, avoids secondary positioning operation, can adjust when puncturing and puncture direction and paracentesis depth, at the same to puncture direction and Depth is fixed, and reducing in operation is the damage for making puncture needle to patient because of shaking, improves and punctures precision and safety.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram that intervention guiding mechanism is punctured for CT proposed by the present invention;
Fig. 2 is a kind of structural schematic diagram that intervention guiding mechanism regulating mechanism is punctured for CT proposed by the present invention;
Fig. 3 is a kind of side view that intervention guiding mechanism regulating mechanism is punctured for CT proposed by the present invention;
Fig. 4 is a kind of structural schematic diagram that intervention guiding mechanism partial enlargement is punctured for CT proposed by the present invention;
Fig. 5 is a kind of structural schematic diagram that intervention guiding mechanism propulsive mechanism is punctured for CT proposed by the present invention;
Fig. 6 is a kind of structural schematic diagram for protruding into casing with guiding mechanism for CT puncture intervention proposed by the present invention;
Fig. 7 is a kind of structural schematic diagram that intervention guiding mechanism movable frame is punctured for CT proposed by the present invention.
In figure: 1 fixed plate, 2 windows, 3 regulating mechanisms, 4 deflecting plates, 5 shafts, 6 expansion plates, 7 tie rods, 8 switching mechanisms, 9 channels, 10 retaining mechanisms, 11 guiding channels, 12 cavitys, 13 propulsive mechanisms, 14 switching slots, 15 holding tanks, 16 connecting rods, 17 the One push rod, 18 push plates, 19 retaining rings, 20 second push rods, 21 briquettings, 22 movable frames, 23 rotational lantern rings, 24 poke rods, 25 guiding tubes, Casing, 28 promotion lantern rings, 29 bootstrap blocks, 30 limitation lantern rings are protruded into 26 stuck lantern rings, 27.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-7, a kind of to puncture intervention guiding mechanism for CT, including fixed plate 1, fixed plate 1 are offered along it The window 2 of length direction setting, 2 opening of window top are provided with regulating mechanism 3, regulating mechanism 3, including arc-shaped structure Deflecting plates 4, the both ends of deflecting plates 4 are fixedly connected with shaft 5, and the side movable sleeve that two groups of shafts 5 are located remotely from each other was connected to along its week To the expansion plate 6 of rotation, the middle position movable sleeve of expansion plate 6 is connected to the tie rod 7 along the setting of its axis direction, tie rod 7 One end close to deflecting plates 4 is provided with switching mechanism 8, and tie rod 7 is offered far from one end of deflecting plates 4 and set along its diametrical direction The channel 9 set, the retaining mechanism 10 being internally provided with for locking in channel 9 are offered on deflecting plates 4 and are set along its length The guiding channel 11 set, the inner ring of guiding channel 11 offer the cavity 12 of ring structure, and the internal activity of cavity 12 is socketed with Two groups of push plates 18 disposed in parallel, and push plate 18 is located at the two sides of guiding channel 11, the setting of deflecting plates 4 is advanced for puncture needle Propulsive mechanism 13.
Further, switching mechanism 8 includes the connecting rod 16 with 7 pivot bush unit of tie rod, and connecting rod 16 protrudes into cavity 12 One end be fixedly connected be located at be arranged between two groups of push plates 18 first push rod 17, push plate 18 is close to 17 side of the first push rod One end offers the promotion slot being obliquely installed, and the side of slot is pushed to offer the first limit along the setting of 18 length direction of push plate Slot, and 17 pivot bush unit of the first limiting slot and the first push rod, the side that two groups of push plates 18 are located remotely from each other be provided with in cavity 12 The first spring that side wall contradicts, connecting rod 16 and 5 pivot bush unit of shaft.
Especially, retaining mechanism 10 offers along the symmetrically arranged briquetting 21 of tie rod 7, two groups of briquettings 21 including two groups The promotion channel being obliquely installed pushes the internal activity in channel to be socketed with the second push rod 20 of L-type structure, and the second push rod 20 is stretched The one end in channel is pushed to be fixedly connected with tie rod 7 out, the side that two groups of briquettings 21 are located remotely from each other is fixedly connected with array setting Fixture block, and fixture block be pyramid structure briquetting 21 be slidably socketed with channel 9.
It is worth explanation, expansion plate 6 offers the holding tank 15 with 5 pivot bush unit of shaft close to one end of deflecting plates 4, turns One end that axis 5 protrudes into holding tank 15 is provided with the retaining ring 19 being fixedly attached with 7 outer ring of tie rod, retaining ring 19 close to shaft 5 one End is welded with the guiding bar with 5 pivot bush unit of shaft, and retaining ring 19 is welded with far from one end of shaft 5 along the setting of its axial array Movable latch, the inner sidewall of holding tank 15 offer the first card slot along the distribution of 5 axial array of shaft, and the first card slot and activity Latch clamping.
In addition, propulsive mechanism 13 includes the movable frame 22 with 4 pivot bush unit of deflecting plates, the top of movable frame 22 is fixedly attached There is guiding tube 25, the outer ring movable sleeve that guiding tube 25 stretches out 22 top of movable frame is connected to rotational lantern ring 23, the bottom of rotational lantern ring 23 Portion two sides are fixedly connected with poke rod 24, and the outer ring movable sleeve that guiding tube 25 stretches out 22 bottom of movable frame is connected to stuck lantern ring 26, Stuck lantern ring 26 is fixedly connected with poke rod 24, and the inner ring that poke rod 24 is located at cavity 12 is fixedly connected with slide block, guiding tube 25 movable sleeve, which is connected to, protrudes into casing 27, and the two sides outer ring for protruding into casing 27 is welded with the bootstrap block being arranged along its length 29, the restricted lantern ring 30 of top outer ring pivot bush unit of guiding tube 25.
In addition to this, the top inner ring for limiting lantern ring 30 is welded with along its symmetrically arranged blocking latch, and bootstrap block 29 is remote The blocking card slot being placed equidistant with along its length is offered from the side for protruding into casing 27, and is stopped card slot and stopped latch clamping, The top outer ring fixing sleeve for protruding into casing 27, which is connected to, pushes ring 28, and the inner ring of guiding tube 25 offers and 29 pivot bush unit of bootstrap block Blocking slot.
Further, the bottom of deflecting plates 4 is welded with the rack gear for the arcuate structure being arranged along its length, on rack gear Tooth be arc-shaped structure, the inner ring and outer ring at 26 top of stuck lantern ring offers the guiding groove of ring structure, stuck lantern ring 26 are clamped with the tooth on rack gear, and the cross section of stuck lantern ring 26 is U-shaped structure, are provided between stuck lantern ring 26 and deflecting plates 4 Second spring.
Particularly, the two sides inner sidewall of window 2 offers the sliding slot being arranged along its length, the top and bottom of sliding slot Inner sidewall offers the inner groovy of array setting, and inner groovy and fixture block are clamped;
Embodiment one:
The two sides of guiding tube 25 offer the switching slot 14 of the arc-shaped structure on movable frame 22, and poke rod 24 Inside switching slot 14, the bottom of fixed plate 1 is fixedly connected with the buffer layer of ring structure, and the two sides of fixed plate 1, which are equipped with, ties up Band.
Working principle:
When use, fixed plate 1 is placed on patient and needs to carry out on the outside of the skin of the site of puncture CT, using bandage into Row bundled fixed will rotate pivoted housing ring 23 when adjusting the position of 4 entirety of deflecting plates, and the then transfer of rotational lantern ring 23 is stirred Bar 24 is rotated along switching slot 14, so that the slide block on poke rod 24 be made to rotate with it, slide block will be located inside cavity 12 Two groups of push plates 18 are mobile to the position being located remotely from each other, then under the guidance of the first limiting slot, in order to ensure 17 energy of the first push rod It enough moves entirely, the cross section of the first limiting slot is arranged using T-type structure, and the first push rod 17 protrudes into the one of the first guiding groove End is T-type structure, to keep the first push rod 17 mobile to the position of deflecting plates 4, then the drive connecting rod 16 of the first push rod 1 to 4 direction of deflecting plates is mobile, and connecting rod 16 drives tie rod 7 and retaining ring 19 mobile to the direction of deflecting plates 4, firstly, connecting rod 16 It drives 20 casees deflecting plates of the second push rod, 4 direction mobile, under the guidance for pushing channel, makes two groups of briquettings 21 to side close to each other To movement, at this time the fixture block on briquetting 21 is disengaged with the inner groovy inside the sliding slot inside window 2, pushes expansion plate 6 Slide expansion plate 6 along the length direction and width direction of window 2, so as to adjust stretching on propulsive mechanism 13 is placed on The position for entering the puncture needle bottom syringe needle inside casing 27 wears the bottom syringe needle of puncture needle patient is supracutaneous close to label Thorn point;When adjusting puncture angle, since retaining ring 19 is mobile to the direction of deflecting plates 4, make movable latch on retaining ring 19 with The first card slot on 15 side wall of holding tank disengages, and then pushes deflecting plates 4, turns deflecting plates 4 under the drive of shaft 5 It is dynamic, to adjust the tilt angle of deflecting plates 4, further by adjusting propulsive mechanism 13 be located at the position on deflecting plates 4 from And realize the three-dimensional adjustment for puncturing pin puncture direction, rotational lantern ring 23 is pushed down on, at this time poke rod 24 drives stuck Lantern ring 26 moves downward, be mounted on 4 bottom of deflecting plates rack gear on tooth disengage, then push movable frame 22, make to move Dynamic frame 22 is moved along the length direction of deflecting plates 4, to adjust the tilt angle of propulsive mechanism 13, realizes determining for puncture needle The adjustment of position, inclined direction;
When adjusting paracentesis depth, then the limitation lantern ring 30 at 25 top of rotation guiding tube limits the resistance on lantern ring 30 Block card tooth is disengaged with the blocking card slot protruded on 27 outside of casing is located at, and pushes puncture needle, and casing is protruded into puncture needle drive 27 move down along guiding tube 25, the position until being moved to needs, limit lantern ring 30 in rotation, make to stop latch and stop to block Slot contradicts, to make to protrude into the fixation of casing 27, which can adjust the fixed position of puncture needle bottom syringe needle, makes syringe needle close to mark Remember in patient body-surface mark position, while on the top for making syringe needle be always positioned at mark position when adjusting and puncturing direction Side improves and punctures precision, avoids secondary positioning operation, can adjust when puncturing and puncture direction and paracentesis depth, together When be fixed to puncturing direction and depth, reducing in operation is the damage for making puncture needle to patient because of shaking, improves and punctures essence Degree and safety.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, Unless otherwise specifically defined.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (8)

1. one kind punctures intervention guiding mechanism, including fixed plate (1) for CT, which is characterized in that the fixed plate (1) opens up There is the window (2) being arranged along its length, is provided with regulating mechanism (3) above window (2) opening, the adjusting machine The both ends of structure (3), the deflecting plates (4) including arc-shaped structure, the deflecting plates (4) are fixedly connected with shaft (5), described in two groups The side movable sleeve that shaft (5) is located remotely from each other is connected to the expansion plate (6) circumferentially rotated along it, the interposition of the expansion plate (6) It sets movable sleeve and is connected to the tie rod (7) along the setting of its axis direction, the tie rod (7) is arranged close to the one end of deflecting plates (4) Have switching mechanism (8), the tie rod (7) offers far from the one end of deflecting plates (4) along the channel of its diametrical direction setting (9), the retaining mechanism (10) of the channel (9) being internally provided with for locking offers on the deflecting plates (4) along its length The guiding channel (11) of direction setting is spent, the inner ring of the guiding channel (11) offers the cavity (12) of ring structure, described The internal activity of cavity (12) is socketed with two groups of push plates (18) disposed in parallel, and push plate (18) is located at the two of guiding channel (11) Side, the propulsive mechanism (13) that deflecting plates (4) setting is advanced for puncture needle.
2. according to claim 1 a kind of for CT puncture intervention guiding mechanism, which is characterized in that the switching mechanism It (8) include connecting rod (16) with tie rod (7) pivot bush unit, one end that the connecting rod (16) protrudes into cavity (12) fixed connects It is connected to be located at and the first push rod (17) is set between two groups of push plates (18), the one end of push plate (18) close to the first push rod (17) side The promotion slot being obliquely installed is offered, the side of slot is pushed to offer the first limiting slot along the setting of push plate (18) length direction, And first limiting slot and the first push rod (17) pivot bush unit, the side that two groups of push plates (18) are located remotely from each other is provided with and cavity (12) The first spring that inner sidewall contradicts, connecting rod (16) and shaft (5) pivot bush unit.
3. according to claim 1 a kind of for CT puncture intervention guiding mechanism, which is characterized in that the retaining mechanism (10) include two groups and offer the promotion being obliquely installed along tie rod (7) symmetrically arranged briquetting (21), two groups of briquettings (21) Channel pushes the internal activity in channel to be socketed with the second push rod (20) of L-type structure, and the second push rod (20) stretches out and pushes channel One end be fixedly connected with tie rod (7), the side that two groups of briquettings (21) are located remotely from each other be fixedly connected with array setting fixture block, And fixture block is that pyramid structure briquetting (21) are slidably socketed with channel (9).
4. according to claim 1 a kind of for CT puncture intervention guiding mechanism, which is characterized in that the expansion plate (6) one end close to deflecting plates (4), which is offered, protrudes into holding tank with the holding tank (15) of shaft (5) pivot bush unit, shaft (5) (15) one end is provided with the retaining ring (19) being fixedly attached with tie rod (7) outer ring, and retaining ring (19) is welded close to the one end of shaft (5) It is connected to and is welded with far from the one end of shaft (5) along the setting of its axial array with the guiding bar of shaft (5) pivot bush unit, retaining ring (19) Movable latch, the inner sidewall of holding tank (15) offers the first card slot along the distribution of shaft (5) axial array, and the first card slot It is clamped with movable latch.
5. according to claim 1 a kind of for CT puncture intervention guiding mechanism, which is characterized in that the propulsive mechanism It (13) include movable frame (22) with deflecting plates (4) pivot bush unit, the top fixing sleeve of movable frame (22) is connected to guiding tube (25), The outer ring movable sleeve that guiding tube (25) stretches out at the top of movable frame (22) is connected to rotational lantern ring (23), the bottom two of rotational lantern ring (23) Side is fixedly connected with poke rod (24), and the outer ring movable sleeve that guiding tube (25) stretches out movable frame (22) bottom is connected to stuck lantern ring (26), stuck lantern ring (26) is fixedly connected with poke rod (24), and the inner ring that poke rod (24) is located at cavity (12) is fixedly connected with Slide block, the movable sleeve of guiding tube (25), which is connected to, protrudes into casing (27), and the two sides outer ring for protruding into casing (27) is welded with along its length Spend the bootstrap block (29) of direction setting, the restricted lantern ring of top outer ring pivot bush unit (30) of guiding tube (25).
6. according to claim 5 a kind of for CT puncture intervention guiding mechanism, which is characterized in that the limitation lantern ring (30) top inner ring is welded with along its symmetrically arranged blocking latch, and bootstrap block (29) is opened far from the side for protruding into casing (27) Equipped with the blocking card slot being placed equidistant with along its length, and stop card slot and stop latch clamping, protrudes into outside the top of casing (27) Circle fixing sleeve, which is connected to, pushes ring (28), and the inner ring of guiding tube (25) offers and the blocking slot of bootstrap block (29) pivot bush unit.
7. according to claim 1 a kind of for CT puncture intervention guiding mechanism, which is characterized in that the deflecting plates (4) bottom is welded with the rack gear for the arcuate structure being arranged along its length, and the tooth on rack gear is arc-shaped structure, stuck set Inner ring and outer ring at the top of ring (26) offers the guiding groove of ring structure, and the tooth on stuck lantern ring (26) and rack gear is clamped, The cross section of stuck lantern ring (26) is U-shaped structure, is provided with second spring between stuck lantern ring (26) and deflecting plates (4).
8. according to claim 1 a kind of for CT puncture intervention guiding mechanism, which is characterized in that the window (2) Two sides inner sidewall offer the sliding slot being arranged along its length, the top and bottom inner sidewall of sliding slot offers array and sets The inner groovy set, and inner groovy and fixture block are clamped.
CN201910260861.6A 2019-04-02 2019-04-02 Be used for CT puncture to intervene and use guiding mechanism Active CN109984825B (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN110974371A (en) * 2019-12-31 2020-04-10 上海市肺科医院 Efficient lung puncture positioning device used under CT guidance
CN112221006A (en) * 2020-10-19 2021-01-15 湖北工业大学 Catheter intervention electromagnetic guiding device for quickly diagnosing acute pulmonary embolism
CN112244967A (en) * 2020-11-30 2021-01-22 武孟孟 Disposable thyroid puncture device positioning device
WO2022199123A1 (en) * 2021-03-24 2022-09-29 真实维度科技控股(珠海)有限公司 Auxiliary guiding and positioning apparatus for ct-guided puncture

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