CN211156105U - Puncture positioning device used under CT guidance - Google Patents

Abstract

The utility model relates to a puncture positioning device under CT guidance, which comprises a support frame, a support rod arranged on the support frame, a bent arm rod connected with one end of the support rod through a bent arm component, an instrument frame connected with one end of the bent arm rod through a steering component, and a template clamp arranged at one end of the instrument frame; the support frame is for spaning the gantry structure that the bed surface set up, and the support frame includes the bracing piece of a horizontal setting, the armful armed lever of two vertical settings, bracing piece and armful through the installation of cross fastening frame detachable between the armed lever, the lower extreme detachable of armful armed lever is equipped with the centre gripping subassembly that sets up perpendicularly with it, the centre gripping subassembly includes the backup pad that a level set up, the both ends of backup pad weld respectively and are equipped with bent shape grip block, bent shape grip block comprises horizontal part, rake. The utility model discloses it is more stable during the installation, and be applicable to and use, be applicable to and use on multiple bed type on the bed surface of multiple width, satisfied the needs of equidirectional and angle in the clinical treatment.

Description

Puncture positioning device used under CT guidance

Technical Field

The utility model belongs to the technical field of the calibrating device that radiation was treated, especially, relate to a puncture positioner for CT guide is down.

Background

At present, CT scanning and puncture are widely applied to the field of clinical puncture biopsy and puncture treatment, and are indispensable technologies for modern medical diagnosis and treatment, and CT examination is short for electronic computed tomography. Because the density of human tissue and lesion tissue are different, the CT examination can give density images of human body and lesion parts and express the density images by CT values. The radioactive particles are implanted under the guidance of CT, so that tumor cells die due to continuous irradiation, the influence on surrounding normal tissues is extremely low, the complications are few, and the radioactive particles are widely applied to the treatment of malignant tumors. In order to ensure the accuracy of the implantation of the particles and the accuracy of the radiation dose, most of the conventional manual needle-holding blind puncturing methods based on experience are adopted, the precision is low, and an effective positioning assisting, fixing and calibrating device is lacked.

Chinese patent CN203107988U discloses a "dual-axis inclination digital display navigator for minimally invasive treatment of tumors", which comprises an upright post, a lifting assembly, a bent arm assembly, and a template clamp with a template and a template frame mounted on a steering assembly in a shaft joint manner, wherein a chip box with a content dual-axis inclination sensor is formed on the template clamp, and a port at one end of the chip box is connected with a computer through a data line and displays inclination data of an X axis and a Y axis of the template. When this device has the following disadvantages:

1) when in use, the bottom plate needs to be placed under the patient, which not only causes discomfort to the patient, but also has poor stability and poor toppling safety.

2) The use and operation are inconvenient, and meanwhile, the device occupies a large space and is not easy to store, carry and transport.

3) The applicable bed surface type is limited, the bed surface type is not applicable to the common flat bed in clinic, and the application range is narrow.

In addition, chinese patent CN107928764A discloses a "puncture template navigation positioning device", which includes a fixed base, a fixed guide rail, a sliding base, a column guide rail, a lifting slide seat, a transverse guide rail mounting seat, a transverse guide rail, a transverse slide seat, a longitudinal guide rail mounting seat, a longitudinal guide rail, a fixed joint, a first movable joint, a second movable joint, an electronic gyroscope, a puncture template, a bluetooth signal transmitter, a bluetooth signal receiver, and a display. However, the following disadvantages are often present:

1) the single-arm type arm has poor stability and is easy to topple and have poor safety.

2) The fixing base is provided with the clamping groove which is in a straight line shape, the type suitable for installing the bed surface has certain limitation when the fixing base is installed, the fixing base is only suitable for being installed on a flat bed with a thin edge, the fixing base is not suitable for a concave bed which is common in clinic, and the application range is narrow.

Therefore, based on the problems, the puncture positioning device for CT guidance, which is more stable in installation, improves the use safety and the operation accuracy, is suitable for being used on bed surfaces with various widths, flat beds, concave beds and other bed types, meets the requirements of different directions and angles in clinical treatment, and has important practical significance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome among the prior art application scope narrow, stability is relatively poor, the security is relatively poor not enough etc, it is more stable when providing an installation, improved the security of use, the accuracy of operation, and be applicable to use on the bed surface of multiple width, be applicable to and use on multiple bed types such as dull and stereotyped bed, concave surface bed, puncture positioner under being used for CT guide of the needs of equidirectional and angle in having satisfied clinical treatment.

The utility model discloses take following technical scheme to realize:

a puncture positioning device under CT guidance comprises a support frame, a support rod arranged on the support frame, a bent arm rod connected with one end of the support rod through a bent arm assembly, an instrument frame connected with one end of the bent arm rod through a steering assembly, and a template clamp arranged at one end of the instrument frame;

the support frame is for striding the gantry structure that the bed surface set up, the support frame includes that a horizontal bracing piece that sets up, two vertical settings embrace the armed lever, the bracing piece with embrace through the installation of cross fastening frame detachable between the armed lever, the lower extreme detachable who embraces the armed lever is equipped with the centre gripping subassembly that sets up perpendicularly with it, the centre gripping subassembly includes the backup pad that a level set up, the both ends of backup pad weld respectively and are equipped with bent shape grip block, bent shape grip block comprises horizontal part, rake, horizontal part and rake enclose into the joint notch that the contained angle is 45.

Preferably, the supporting rod is detachably mounted on the supporting rod through a transverse sliding seat, a supporting rod hole and a supporting rod hole which are vertically arranged and are respectively used for inserting the supporting rod and the supporting rod are formed in the transverse sliding seat, and two first locking bolts which are respectively used for locking the supporting rod hole and the supporting rod hole are further arranged on the transverse sliding seat.

Preferably, the cross fastening frame is provided with a transverse hole and a longitudinal hole which are perpendicular to each other and are respectively used for inserting the support rod and the arm holding rod, and the cross fastening frame is further provided with two second locking bolts respectively used for locking the transverse hole and the longitudinal hole.

Preferably, a bed board clamping bolt penetrates through the curved clamping plate, screw holes for the bed board clamping bolt to penetrate through and be in threaded connection with the horizontal part and the supporting plate are formed in the horizontal part and the supporting plate, and a protective sleeve is arranged at the lower end of the bed board clamping bolt.

Preferably, the length direction of the supporting plate is perpendicular to the length direction of the supporting plate, and a jack platform which is fastened by an arm locking bolt and used for holding the arm is arranged in the middle of the upper end face of the supporting plate.

Preferably, the template clamp is provided with a puncture template through a template fastening bolt.

Further preferably, bolt wrenches are respectively arranged at the upper ends of the first locking bolt, the second locking bolt, the bed board clamping bolt, the arm holding rod locking bolt and the template fastening bolt.

The utility model has the advantages that:

1. the utility model discloses in, bracing piece, armful arm pole assemble into the longmen structure through cross fastening frame, and cross fastening frame can guarantee the bracing piece, armful arm pole sets up perpendicularly all the time for it is more stable during the installation, improved the security of using, the accuracy of operation.

2. The utility model discloses in, can be according to the width adjustment interval of bed surface two armful arm poles on the bracing piece, according to the position of required altitude mixture control bracing piece on embracing the arm pole to be applicable to the patient of different sizes, be applicable to and use on the bed surface of multiple width.

3. The utility model discloses in, two centre gripping subassemblies centre gripping respectively are on the both sides border of bed surface, and two armful armed levers of adduction are the clamp type and embrace the bed surface border tightly, and the gantry structure of support frame for spaning the bed surface setting through two cross fastening framves on the locking support frame, can realize that the support frame is more firm, and wherein, the horizontal part encloses into the joint notch that the contained angle is 45 with the rake, is applicable to and installs on the bed surface border of multiple thickness, is applicable to and uses on multiple bed types such as flat bed, concave surface bed.

4. The utility model discloses can realize about, about the puncture template, around three-dimensional stereotactic adjustable, the multi-angle, it is diversified, satisfied the needs of equidirectional and angle in the clinical treatment, improve the practicality of using.

5. The utility model discloses in, can unpack apart each part of this device one by one after the operation is accomplished, reduce occupation space, portable transportation and accomodate, the utility model discloses convenient to detach is convenient for install, and simple installation.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic top view of the installation state of the present invention;

FIG. 3 is a schematic perspective view of the cross fastening frame of the present invention;

FIG. 4 is a schematic perspective view of the lateral sliding base of the present invention;

fig. 5 is a schematic perspective view of the clamping assembly of the present invention;

fig. 6 is a schematic front view of the clamping assembly of the present invention.

In the figure: 1. the multifunctional clamp comprises a support rod, 2 bending arm components, 3 bending arm rods, 4 steering components, 5 instrument holders, 6 template clamps, 7 supporting frames, 71 supporting rods, 72 armful arm rods, 8 cross fastening frames, 9 supporting plates, 10 curved clamping plates, 101 horizontal parts, 102 inclined parts, 11 transverse sliding seats, 12 supporting rod holes, 13 supporting rod holes, 14 first locking bolts, 15 transverse holes, 16 longitudinal holes, 17 second locking bolts, 18 template clamping bolts, 19 protective sleeves, 20 armful arm rod locking bolts, 21 inserting hole tables, 22 template fastening bolts, 23 bolt wrenches, 24 bending arm locking bolts, 25 steering bolts, 26 boxes and 27 bed surfaces.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1-6, a positioning device for CT-guided puncture comprises a support frame 7, a support rod 1 mounted on the support frame 7, a bent arm rod 3 connected with one end of the support rod 1 through a bent arm assembly 2, an instrument frame 5 connected with one end of the bent arm rod 3 through a steering assembly 4, and a template clamp 6 mounted at one end of the instrument frame 5; the gantry structure that support frame 7 set up for crossing bed surface 27, support frame 7 includes that a horizontal bracing piece 71 that sets up, two vertical settings embrace arm pole 72, bracing piece 71 and embrace through the installation of cross fastening frame 8 detachable between the arm pole 72, the lower extreme detachable of embracing arm pole 72 is equipped with the centre gripping subassembly that sets up perpendicularly with it, the centre gripping subassembly includes the backup pad 9 that a level set up, the both ends of backup pad 9 weld respectively and are equipped with bent shape grip block 10, bent shape grip block 10 comprises horizontal part 101, rake 102, horizontal part 101 encloses into the joint notch that the contained angle is 45 with rake 102.

Example (b): when the device is used, the support rod 71 and the arm holding rod 72 are assembled into a gantry structure through the cross fastening frame 8, the cross fastening frame can ensure that the support rod 71 and the arm holding rod 72 are always vertically arranged, so that the installation is more stable, the distance between the two arm holding rods 72 on the support rod 71 is adjusted according to the width of a bed surface 27 to be used, the position of the support rod 71 on the arm holding rod 72 is adjusted according to the required height, and the gantry structure is suitable for patients with different body types and is suitable for being used on bed surfaces with various widths, the lower end of the arm holding rod 72 is installed on a clamping component, a support frame 7 stretches across the upper part of the bed surface 27 after the adjustment is completed, the two clamping components are respectively clamped on the two side edges of the bed surface 27, the two inward-folded arm holding rods 72 are in a clamp type and hold the edges of the bed surface tightly, the support frame is in a gantry structure, can realize that the support frame is more firm, do not influence patient's removal, comfort when increasing patient's inspection, wherein, horizontal part 101 encloses into the contained angle with rake 102 and is 45 joint notch, be applicable to and install on the bed surface border of multiple thickness, and be applicable to dull and stereotyped bed, install on multiple bed surfaces such as concave surface bed, through adjusting the subassembly 2 of crooking one's arm after the installation is accomplished, turn to subassembly 4 and then can make the chip box 26 of the content biax angular transducer chip of installation on instrument holder 5, the puncture template of installation is realized from top to bottom on the template clamp 6, control, three-dimensional stereotactic is adjustable around, multi-angle, it is multi-azimuth, the needs of not equidirectional and angle in the clinical treatment have been. Can unpack apart each part of this device one by one after the operation is accomplished, reduce occupation space, portable transportation and accomodate, the utility model discloses convenient to detach, the installation of being convenient for, and simple installation.

The arm bending component 2 comprises an arm bending connecting piece, two slots which are arranged in parallel and used for being inserted with the supporting rod 1 and the arm bending rod 3 are formed in the arm bending connecting piece, the supporting rod 1 and the arm bending rod 3 are respectively inserted into the respective slots and can freely rotate 360 degrees in the slots, and an arm bending locking bolt 24 used for locking the relative positions of the supporting rod 1 and the arm bending rod 3 is further arranged on the arm bending connecting piece.

The two slots which are arranged in parallel and are respectively used for inserting the support rod 1 and the bent arm rod 3 are formed in the bent arm connecting piece, so that the support rod 1 can freely slide and rotate on the bent arm connecting piece, the bent arm rod 3 can freely slide and rotate on the bent arm connecting piece, and the bent arm locking bolt 24 is used for locking the position, the front and back positions and the inclination angle of the puncture template are adjusted, and the requirements of different directions and angles in clinical treatment are met.

The steering assembly 4 comprises a steering joint fixedly connected to one side, far away from the template clamp 6, of the instrument frame 5, the other end of the bent arm rod 3 is movably inserted into the steering joint, and a steering locking bolt 25 is arranged on the steering joint.

The other end of the bent arm rod 3 is movably inserted on the steering joint, so that the inclination angle of the puncture template is adjusted, and the requirements of different directions and angles in clinical treatment are met.

The instrument comprises an instrument frame 5, wherein a chip box 26 containing a double-shaft tilt angle sensor chip is installed on the instrument frame 5.

Still further, can be in the utility model discloses in consider, branch 1 is installed on bracing piece 71 through horizontal slide 11 detachable, set up perpendicular setting each other and be used for grafting branch 1, bracing piece 71's bracing piece hole 12, bracing piece hole 13 respectively on the horizontal slide 11, still be equipped with two first locking bolt 14 that are used for locking bracing piece hole 12, bracing piece hole 13 respectively on the horizontal slide 11.

The transverse sliding seat 11 is provided with a supporting rod hole 12 and a supporting rod hole 13 which are vertically arranged and are respectively used for inserting the supporting rod 1 and the supporting rod 71, so that the transverse sliding seat 11 can freely slide and rotate on the supporting rod 71, the supporting rod 1 can slide and rotate in the transverse sliding seat 11, and locking positions are carried out through respective first locking bolts 14, thereby realizing that the puncture template is adjustable in vertical, horizontal and front-back three-dimensional directions, and meeting the requirements of different directions and angles in clinical treatment.

Still further, can also be in the utility model discloses in consider, set up perpendicular setting each other and be used for grafting bracing piece 71, embracing the horizontal hole 15 of arm pole 72, vertical hole 16 respectively on the cross fastening frame 8, still be equipped with two second locking bolt 17 that are used for locking horizontal hole 15, vertical hole 16 respectively on the cross fastening frame 8. The supporting rod 71 and the arm holding rod 72 can slide in the transverse hole 15 and the longitudinal hole 16 of the cross fastening frame 8 respectively, so that the device is suitable for being used on bed surfaces with various widths, and the distance between the supporting rod 71 and the bed surface 27 can be adjusted according to actual requirements.

Still further, can also be in the utility model discloses in consider, it is equipped with bed board clamping bolt 18 to run through on the bent shape grip block 10, set up on horizontal part 101, the backup pad 9 and supply bed board clamping bolt 18 to pass and threaded connection's screw with it, bed board clamping bolt 18's lower extreme is equipped with protective sheath 19.

Wherein, bent shape grip block 10 includes horizontal part 101 and rake 102 that the contained angle is 45 between, it embraces bed surface 27 border to be the clamp type, and protective sheath 19 is used for pressing from both sides tight bed surface border downwards, and then make the tight centre gripping of bent shape grip block 10 on bed surface border, through rotating bed board clamping bolt 18, bed board clamping bolt 18 can revolve the precession and screw out in the screw, then make protective sheath 19 along with the removal of bed board clamping bolt 18, be convenient for carry out the centre gripping to the bed surface border of different thickness, protective sheath 19 sets up not only helps pressing from both sides tight bed surface, and can also play certain guard action to the bed surface, prevent that bed board clamping bolt 18 from causing the damage to the bed surface, wherein, the material of protective sheath 19 can but not be limited to the silica.

Still further, can also be in the utility model discloses in consider, the length direction of backup pad 9 is mutually perpendicular with the length direction of bracing piece 71, backup pad 9 up end middle part is equipped with embraces the jack platform 21 of armed lever 72 through embracing the fastening of armed lever locking bolt 20. The jack platform 21 is used for installing the armful arm 72, and the armful arm locking bolt 20 is used for fastening the armful arm 72 on the jack platform 21.

Still further, it is contemplated in the present invention that the form clamp 6 is provided with a piercing form by form fastening bolts 22. The puncture template can be placed in the notch of the template clamp 6 and locked and fixed through the template fastening bolt 22.

In some other embodiments of the present invention, the present invention can be further directed to freely and flexibly configuring the present invention so as to fully exert the technical advantages of the present invention. This is exemplified below.

For example, the first locking bolt 14, the second locking bolt 17, the deck clamping bolt 18, the jib locking bolt 20, and the template fastening bolt 22 are provided with bolt wrenches 23 at upper ends thereof, respectively. The bolt wrench 23 may facilitate manual turning of the bolt to which it is attached.

It should be noted that the chip box containing the dual-axis tilt sensor chip used in the device may adopt a structure of the chip box containing the dual-axis tilt sensor chip in the prior art, and the specific structure, the working principle and the circuit structure of the chip box containing the dual-axis tilt sensor chip are all the prior art, for example, the issued patent CN203107988U discloses a "tumor minimally invasive treatment dual-axis tilt digital display navigator", and the specific structure, the working principle and the circuit structure of the chip box containing the dual-axis tilt sensor chip have been described in the specification, and only the power line of the chip box is required to be connected with a mains supply (charging) to work, so detailed explanation is not given.

To sum up, the utility model provides a during installation more stable, improved the security of use, the accuracy of operation, and be applicable to use on the bed surface of multiple width, be applicable to and use on multiple bed types such as dull and stereotyped bed, concave surface bed, puncture positioner under the CT guide that is used for of the needs of different directions and angle has been satisfied in clinical treatment.

Claims (7)

1. The utility model provides a be used for CT guide to pierce down positioner, includes support frame (7), installs branch (1) on support frame (7), through the pole of crooking one's arm (3) that crooking one end link to each other of arm subassembly (2) and branch (1), through instrument frame (5) that turn to subassembly (4) and crooking one end and install template clamp (6) in instrument frame (5) one end, its characterized in that:

the gantry type clamping device is characterized in that the support frame (7) is of a gantry structure and is arranged on a cross bed surface (27), the support frame (7) comprises a transverse support rod (71) and two vertically-arranged arm holding rods (72), the support rod (71) and the arm holding rods (72) are detachably mounted through a cross fastening frame (8), a clamping assembly which is perpendicular to the support rod is arranged at the lower end of each arm holding rod (72) in a detachable mode, the clamping assembly comprises a horizontal support plate (9), the two ends of the support plate (9) are respectively welded with curved clamping plates (10), each curved clamping plate (10) is composed of a horizontal portion (101) and an inclined portion (102), and each horizontal portion (101) and each inclined portion (102) are surrounded to form a clamping notch with an included angle of 45 degrees.

2. The device of claim 1, wherein the puncture positioning device comprises: branch (1) are installed on bracing piece (71) through horizontal slide (11) detachable, set up perpendicular setting each other and be used for branch hole (12), the bracing piece hole (13) of grafting branch (1), bracing piece (71) respectively on horizontal slide (11), still be equipped with two first locking bolt (14) that are used for locking branch hole (12), bracing piece hole (13) respectively on horizontal slide (11).

3. The device of claim 1, wherein the puncture positioning device comprises: the cross fastening frame (8) is provided with a transverse hole (15) and a longitudinal hole (16) which are perpendicular to each other and are respectively used for inserting the supporting rod (71) and the arm holding rod (72), and the cross fastening frame (8) is further provided with two second locking bolts (17) which are respectively used for locking the transverse hole (15) and the longitudinal hole (16).

4. The device of claim 1, wherein the puncture positioning device comprises: a bed board clamping bolt (18) penetrates through the curved clamping plate (10), a screw hole for the bed board clamping bolt (18) to penetrate through and be in threaded connection with is formed in the horizontal part (101) and the supporting plate (9), and a protective sleeve (19) is arranged at the lower end of the bed board clamping bolt (18).

5. The device of claim 1, wherein the puncture positioning device comprises: the length direction of backup pad (9) is mutually perpendicular with the length direction of bracing piece (71), backup pad (9) up end middle part is equipped with and embraces jack platform (21) of armed lever (72) through embracing armed lever locking bolt (20) fastening.

6. The device of claim 1, wherein the puncture positioning device comprises: and a puncture template is arranged on the template clamp (6) through a template fastening bolt (22).

7. A positioning device for CT guided puncture according to claim 2, wherein: and bolt wrenches (23) are respectively arranged at the upper ends of the first locking bolt (14), the second locking bolt (17), the bed board clamping bolt (18), the arm holding rod locking bolt (20) and the template fastening bolt (22).

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