Device for assisting in adjusting needle inserting angle in non-vascular intervention under guidance of CT (Computed Tomography)

Abstract

The utility model discloses a CT (computed tomography) guided non-vascular intervention auxiliary needle inserting angle adjusting device, which relates to the technical field of needle biopsy angle positioning auxiliary devices, and comprises a base, a horizontal rod and an angle scale, the horizontal rod is connected with a support column through a height adjusting rod, and the bottom end of the support column is connected with the top surface of the base; the angle scale is arranged on the bottom surface of the horizontal rod; two first holes are drilled in one end of the horizontal rod, second holes are drilled in the two ends of each height adjusting rod, the two second holes located in the top end are connected with the corresponding first holes through first bolts, and two third holes are drilled in the top end of the supporting column. The two third holes are connected with the second holes in the bottom ends of the corresponding height adjusting rods through second bolts, and the distance between the centers of the two first holes is equal to the distance between the centers of the two third holes. According to the utility model, the horizontal reference line is introduced, so that the absolute angle is accurately adjusted, and the accuracy and the safety of needle biopsy are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to puncture biopsy angle positioning auxiliary device technical field especially, it relates to a device of auxiliary adjustment needle angle under CT guide non -vascular intervention. BACKGROUND

[0006]

[0002] CT guided biopsy is a kind of tumor department common examination mode with less trauma and high diagnostic value, and the accuracy of puncture is crucial, mainly determined by needle angle and needle depth. Needle depth can be measured by CT imaging to measure the distance between the puncture target and the skin, and the inherent scale on the puncture needle is used to determine the needle depth, while the puncture angle is often determined by the puncture physician himself, which reduces the puncture accuracy to some extent, increases the puncture difficulty and the number of punctures, and is prone to many complications and even death due to repeated puncture. Therefore, an auxiliary device for solving angle positioning problem is urgently needed.

[0003] The existing patent number 202221370477.5 discloses a CT guided biopsy angle positioning auxiliary device, which comprises a fixed seat, a circular arc plate and a steering mechanism. The outer side wall of the circular arc plate is provided with a steering mechanism, and the steering mechanism is composed of a fixed plate, a bolt, a threaded rod B, a threaded sleeve B, a circular arc groove, a through hole and a scale line. The outer side wall of the fixed plate is provided with a threaded rod B, the outer side wall of the circular arc plate is provided with a circular arc groove, and the threaded rod B penetrates the circular arc groove. The threaded rod B can move in the circular arc groove. The outer side wall of the threaded rod B is threadedly connected with the threaded sleeve B. The outer side wall of the fixed plate is threadedly connected with the bolt, and the bolt can rotate on the outer side wall of the fixed plate. The outer side wall of the fixed plate is provided with a through hole, and the outer side wall of the circular arc plate is provided with a scale line. The adjusting mechanism and the steering mechanism can adjust the angle of the puncture needle in different planes, increase the angle adjustment range of the puncture needle and facilitate personnel positioning puncture.

[0004] The above-mentioned CT guided biopsy angle positioning auxiliary device has some shortcomings in actual application. The device is adhered to the surface of the patient's body and moves with the patient's body. The needle insertion path measured and planned in the CT image is an absolute angle with a horizontal line as a reference line. For example, the measurement result from the puncture point to the lesion shows that the angle between the horizontal line and the puncture needle is 39°. Because the device is adhered to the patient's body, the fixed seat changes with the change of the patient's puncture position (lying on one side, supine and prone), so it is difficult to accurately adjust the absolute angle of 39°. Therefore, its clinical use is greatly limited.

[0005] Therefore, the skilled person in the art provides a device for assisting adjustment of needle angle under CT guided non-vascular intervention to solve the problems raised in the background art. UTILITY MODEL CONTENTS

[0006] The utility model provides a device of CT guided non blood vessel intervention auxiliary adjustment needle angle of penetration is provided with horizontal reference line, realizes accurate adjustment to absolute angle, improves the accuracy and safety of puncture biopsy.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] The utility model discloses a device of CT guided non blood vessel intervention auxiliary adjustment needle angle of penetration, and the device comprises:

[0009] The base is arranged on the ground in the intervention puncture operating room.

[0010] The horizontal rod is connected with the top end of the supporting column through two height adjusting rods, and the bottom end of the supporting column is connected with the top surface of the base.

[0011] The angle disc is arranged on the bottom surface of the horizontal rod, one side of the angle disc is provided with an angle adjusting rod, and a needle holder is arranged on the angle adjusting rod.

[0012] A first hole is drilled in one end of the horizontal rod, and the center line of the two first holes is parallel to the horizontal plane; second holes are drilled in the two ends of each height adjusting rod, and the two second holes at the top end are connected with the corresponding first holes through first bolts; two third holes are drilled in the top end of the supporting column, and the center line of the two third holes is parallel to the horizontal plane; and the two third holes and the second holes at the bottom end of the corresponding height adjusting rod are connected through second bolts.

[0013] Further, the distance between the centers of the two first holes is the same as the distance between the centers of the two third holes.

[0014] Further, a vertical rod is connected to the middle of the bottom of the horizontal rod, the vertical rod is arranged perpendicularly to the horizontal rod, the horizontal end of the angle disc is embedded in the bottom surface of the horizontal rod, the vertical end of the angle disc is attached to the side surface of the vertical rod, and the angle disc has an angle scale of 0-90 degrees from the horizontal end to the vertical end.

[0015] Further, the end of the angle adjusting rod is connected with the origin of the angle disc through a third bolt, and the angle adjusting rod is attached to the angle disc.

[0016] Further, a square hole is formed in the top surface of the base near the end, the bottom end of the supporting column is inserted into the square hole, and the supporting column is arranged perpendicularly to the base.

[0017] Further, the needle holder comprises a rectangular block, a top surface of the rectangular block is recessed inward to form a clamping groove, the clamping groove is arranged away from the angle disc, and an end of the rectangular block away from the clamping groove is mounted on the angle adjusting rod.

[0018] Preferably, the number of the rectangular blocks is at least two.

[0019] In the above technical solution, the device for assisting in adjusting a needle insertion angle under non-vascular intervention under CT guidance has the following beneficial effects:

[0020] 1. The parallel quadrilateral rule is adopted to realize the horizontal rod always keeping horizontal, a horizontal reference line is introduced into the puncture angle adjusting mechanism by a physical method, the consistency of the system planning needle insertion angle and the actual adjusting angle reference line is realized under the CT guidance non-vascular intervention surgery, the accuracy of the puncture biopsy is improved, and the accuracy and safety of the puncture biopsy are improved.

[0021] 2. The device overcomes the defect that the needle insertion angle cannot be accurately adjusted due to different reference systems in the prior art, and has the characteristics of simple structure, easy manufacturing, low failure rate, safety and reliability, and convenient operation, is suitable for assisting in adjusting a needle insertion angle under non-vascular intervention under CT guidance, and improves the accuracy and safety of the puncture biopsy. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0023] Figure 1 A front view of a device for assisting in adjusting a needle insertion angle under non-vascular intervention under CT guidance provided by the embodiments of the present application;

[0024] Figure 2 A front view of a support column in the device for assisting in adjusting a needle insertion angle under non-vascular intervention under CT guidance; Figure 1

[0025] A side view of the support column in the device for assisting in adjusting a needle insertion angle under non-vascular intervention under CT guidance; Figure 3 Figure 1 A top view of the support column in the device for assisting in adjusting a needle insertion angle under non-vascular intervention under CT guidance;

[0026] Figure 4 Figure 1 A front view of a height adjusting rod in the device for assisting in adjusting a needle insertion angle under non-vascular intervention under CT guidance;

[0027] Figure 5 A front view of the height adjusting rod in the device for assisting in adjusting a needle insertion angle under non-vascular intervention under CT guidance; Figure 1

[0028] A front view of the height adjusting rod in the device for assisting in adjusting a needle insertion angle under non-vascular intervention under CT guidance;​​Figure 6 Fig. 2 is a front view of the height adjusting rod; Figure 1 Fig. 3 is a plan view of the height adjusting rod;

[0029] Figure 7 Fig. 4 is a side view of the height adjusting rod; Figure 1 Fig. 5 is a plan view of the height adjusting rod;

[0030] Figure 8 Fig. 6 is a side view of the height adjusting rod; Figure 1 Fig. 7 is a schematic view of the connecting structure of the horizontal rod, the vertical rod and the angle disc; Fig. 8 is a plan view of the height adjusting rod;

[0031] Fig. 9 is a side view of the height adjusting rod; Figure 9 Fig. 10 is a front view of the needle holder; Figure 8 Fig. 11 is a plan view of the needle holder; Fig. 12 is a side view of the needle holder;

[0032] Fig. 13 is a front view of the needle holder; Figure 10 Fig. 14 is a plan view of the needle holder; Figure 8 Fig. 15 is a side view of the needle holder; Fig. 16 is a front view of the base;

[0033] Fig. 17 is a plan view of the base; Figure 11 Fig. 18 is a side view of the base; Figure 1 Fig. 19 is a front view of the base; Fig. 20 is a plan view of the base;

[0034] Fig. 21 is a side view of the base. Figure 12 Fig. 22 is a front view of the base; Figure 1 Fig. 23 is a plan view of the base; Fig. 24 is a side view of the base.

[0035] Fig. 25 is a front view of the base; Figure 13 Fig. 26 is a plan view of the base; Figure 1 Fig. 27 is a side view of the base. Fig. 28 is a front view of the base;

[0036] Fig. 29 is a plan view of the base; Figure 14 Fig. 30 is a side view of the base. Figure 1 Fig. 31 is a front view of the base; Fig. 32 is a plan view of the base;

[0037] Fig. 33 is a side view of the base. Figure 15 Fig. 34 is a front view of the base; Figure 1 Fig. 35 is a plan view of the base; Fig. 36 is a side view of the base.

[0038] Fig. 37 is a front view of the base; Figure 16 Fig. 38 is a plan view of the base; Figure 1 Fig. 39 is a side view of the base. Fig. 40 is a front view of the base;

[0039] Fig. 41 is a plan view of the base; Fig. 42 is a side view of the base.

[0040] 1, base; 2, horizontal rod; 3, height adjusting rod; 4, supporting column; 5, angle disc; 6, angle adjusting rod; 7, needle holder; 8, first hole; 9, second hole; 10, first bolt; 11, third hole; 12, second bolt; 13, vertical rod; 14, square hole; 15, rectangular block; 16, clamping groove. DETAILED DESCRIPTION

[0041] In order to make the skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail below in combination with the drawings.

[0042] Referring to Fig. 1; Figures 1-10 Fig. 2 is a front view of the height adjusting rod; Fig. 3 is a plan view of the height adjusting rod;

[0043] The utility model discloses a device of CT guide under non blood vessel intervention auxiliary adjustment needle angle, including:

[0044] Base 1, base 1 is arranged on the ground of intervention puncture operating room,

[0045] Horizontal rod 2, one end of horizontal rod 2 is connected with one end of two height adjusting rods 3, the other end of two height adjusting rods 3 is connected with the top end of support column 4, and the bottom end of support column 4 is connected with the top surface of base 1;The ground levelness of intervention puncture operating room is very high, and it is beneficial to the horizontal state of horizontal rod;

[0046] Angle disc 5, angle disc 5 is arranged on the bottom surface of horizontal rod 2, one side of angle disc 5 is provided with angle adjusting rod 6, and needle holder 7 is arranged on angle adjusting rod 6;

[0047] One end of horizontal rod 2 is drilled with two first holes 8, and the center line of two first holes 8 is parallel to the horizontal plane, two ends of each height adjusting rod 3 are drilled with second holes 9, two second holes 9 at the top end are connected with corresponding first holes 8 through first bolts 10, and the top end of support column 4 is drilled with two third holes 11, and the center line of two third holes 11 is parallel to the horizontal plane, and two third holes 11 are connected with the second holes 9 at the bottom end of the corresponding height adjusting rod 3 through second bolts 12.

[0048] The distance between the centers of two first holes 8 is same with the distance between the centers of two third holes 11. Meanwhile, the diameters of first holes 8 and third holes 11 can also be same. Finally, it is ensured that horizontal rod is arranged in parallel with the ground of intervention puncture operating room when in use.

[0049] The first holes 8 at the end of horizontal rod 2 and the second holes 9 at the end of two height adjusting rods 3 and the third holes 11 at the top end of support column 4 are connected into parallelogram structure through first bolts 10 and second bolts 12 respectively, since the ground levelness of intervention puncture operating room is very high, and the center lines of two first holes 8 and two third holes 11 are parallel to the horizontal plane, that is, parallel to the ground of intervention puncture operating room, the horizontal state of horizontal rod 2 can be effectively ensured during puncture biopsy under CT guidance, and the angle adjustment based on this is consistent with the absolute angle measured and planned in CT image, so that the accuracy of puncture is improved.

[0050] The bottom middle part of horizontal rod 2 is connected with vertical rod 13, vertical rod 13 is arranged perpendicularly to horizontal rod 2, the horizontal end of angle disc 5 is embedded into the bottom surface of horizontal rod 2, the vertical end of angle disc 5 is attached to the side surface of vertical rod 13, vertical rod 13 serves as the vertical setting reference of the vertical end of angle disc 5, and angle disc 5 has 0-90 ° angle scale from the horizontal end to the vertical end.

[0051] The horizontal rod 2 and the vertical rod 13 arranged perpendicularly facilitate the positioning installation of the angle disc 5, and meanwhile, the accuracy is not affected due to the installation deviation of the angle disc 5.

[0052] The end of the angle adjusting rod 6 is connected with the origin of the angle disc 5 through the third bolt, and the angle adjusting rod 6 is close to the angle disc 5.

[0053] When the angle needs to be adjusted, the third bolt is loosened, the angle adjusting rod 6 is adjusted, and after the angle is adjusted to the preset angle, the third bolt is tightened to fix the angle adjusting rod 6, so that the accuracy of the detection is not affected due to the movement of the angle adjusting rod during the CT guided puncture biopsy.

[0054] Referring to Figure 1 , 14 -15 shown in the drawings;

[0055] The top surface of the base 1 is provided with a square hole 14 near the end, the bottom end of the support column 4 is inserted into the square hole 14, and the support column 4 is arranged perpendicularly to the base 1. The perpendicularly arranged base 1 and support column 4 can effectively ensure the horizontal state of the horizontal rod 2.

[0056] The top surface of the support column 4 and the middle part of the end of the horizontal rod 2 and the height adjusting rod 3 are recessed inward to form a groove, and the bottom end of the two height adjusting rods 3 extends into the corresponding groove.

[0057] Referring to Figure 1 , 11 -13 shown in the drawings;

[0058] The needle holder 7 comprises a rectangular block 15, the top surface of the rectangular block 15 is recessed inward to form a clamping groove 16, the clamping groove 16 is arranged away from the angle disc 5, and the end of the rectangular block 15 away from the clamping groove 16 is installed on the angle adjusting rod 6.

[0059] The number of the rectangular blocks 15 is at least two, so as to ensure that the length direction of the intervention puncture needle on the two needle holders 7 is parallel to the length direction of the angle adjusting rod 6, and finally ensure the accuracy of the angle adjustment.

[0060] In use, the device is placed on one side of a CT scan bed operating table, placed on the ground, and the side of the base 1 away from the square hole 14 is parallel to the bottom edge of the CT scan bed operating table, so that the device assumes a working posture in which the parallelogram movement direction is perpendicular to the long axis direction of the CT scan bed operating table; then the angle adjusting rod 6 is adjusted according to the angle measured in the CT image to make the two angles consistent; finally, the height adjusting rod 3 is adjusted to adjust the height and position of the angle adjusting rod 3, so that the angle adjusting rod 6 approaches the patient's skin, and the needle tip of the interventional puncture needle on the needle holder 7 is aimed at the needle entry point, at this time the state of the interventional puncture needle is in the state of the planned angle, and the next puncture operation can be performed. Through the above process, the device realizes the function of precise adjustment of the non-vascular interventional needle entry angle under CT guidance.

[0061] The device adopts two motion parts, one is to adjust the angle through the angle adjusting rod 6, and the other is to adjust the height through the parallelogram result, no matter how the height is adjusted, the horizontal rod 2 can be kept horizontal to achieve the purpose of introducing a horizontal reference line to obtain an absolute angle.

[0062] Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for assisting adjustment of needle insertion angle in CT-guided non-vascular intervention, characterized in that, The device comprises: a base (1) arranged on the ground in an interventional puncture operating room; a horizontal rod (2) having one end connected with two height-adjusting rods (3), the other ends of the two height-adjusting rods (3) being connected with the top end of a support column (4), the bottom end of the support column (4) being connected with the top surface of the base (1); a dial (5) arranged on the bottom surface of the horizontal rod (2), one side of the dial (5) being provided with an angle-adjusting rod (6), a needle holder (7) being arranged on the angle-adjusting rod (6); one end of the horizontal rod (2) is drilled with two first holes (8), the center line of the two first holes (8) being parallel to the horizontal plane, the two ends of each height-adjusting rod (3) are drilled with second holes (9), the two second holes (9) at the top end are connected with the corresponding first holes (8) through first bolts (10), the top end of the support column (4) is drilled with two third holes (11), the center line of the two third holes (11) being parallel to the horizontal plane, the two third holes (11) are connected with the second holes (9) at the bottom end of the corresponding height-adjusting rod (3) through second bolts (12).

2. The device for assisting adjustment of needle insertion angle in CT-guided non-vascular intervention according to claim 1, characterized in that: The distance between the centers of the two first holes (8) is the same as the distance between the centers of the two third holes (11).

3. The device for assisting adjustment of needle insertion angle in CT-guided non-vascular intervention according to claim 1, characterized in that: The bottom middle part of the horizontal rod (2) is connected with a vertical rod (13), the vertical rod (13) is arranged perpendicularly to the horizontal rod (2), the horizontal end of the dial (5) is embedded in the bottom surface of the horizontal rod (2), the vertical end of the dial (5) is fitted with the side surface of the vertical rod (13), the dial (5) has an angle scale of 0-90° from the horizontal end to the vertical end.

4. The device for assisting adjustment of needle insertion angle in CT-guided non-vascular intervention according to claim 3, characterized in that: The end of the angle-adjusting rod (6) is connected with the origin of the dial (5) through a third bolt, the angle-adjusting rod (6) is tightly fitted with the dial (5).

5. The device for assisting adjustment of needle insertion angle in CT-guided non-vascular intervention according to claim 1, characterized in that: The top surface of the base (1) is provided with a square hole (14) near the end, the bottom end of the support column (4) is inserted into the square hole (14), and the support column (4) is arranged perpendicularly to the base (1).

6. The device for assisting adjustment of needle insertion angle in CT-guided non-vascular intervention according to claim 1, characterized in that: The needle holder (7) comprises a rectangular block (15), the top surface of the rectangular block (15) is recessed inward to form a clamping groove (16), the clamping groove (16) is arranged away from the dial (5), and the end of the rectangular block (15) away from the clamping groove (16) is mounted on the angle-adjusting rod (6).

7. The device for assisting adjustment of needle insertion angle in CT-guided non-vascular intervention according to claim 6, characterized in that: The number of the rectangular blocks (15) is at least two.

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