Multi-degree-of-freedom adjustable percutaneous puncture surgery navigation device

Abstract

The invention relates to the technical field of medical instruments, and provides a degree-of-freedom adjustable percutaneous puncture surgery navigation device which comprises a support base, the support base comprises a lower-layer annular base and an upper-layer annular support, and a first supporting rod, a second supporting rod and a third supporting rod are fixedly connected between the lower-layer annular base and the upper-layer annular support; a first fixing rod, a second fixing rod and a third fixing rod are arranged on the surface of the lower-layer annular base, and a second spherical joint is arranged at one end of the first fixing rod. Through multi-dimensional adjustment, the puncture path is completely carried out according to the pre-designed path of CT / MRI, errors caused by subjective measurement of doctors are avoided, the success rate of an operation is increased, the risk of the operation is reduced, and young doctors lack of experience can accurately and successfully puncture at a time.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a multi-degree-of-freedom adjustable percutaneous puncture surgical navigation device. Background Art

[0002] Recently, minimally invasive surgeries have increasingly replaced diseases that traditionally required open surgery. After existing percutaneous punctures are located through CT or MRI, physicians need to subjectively judge the needle insertion direction angle, etc., which will cause errors. For large puncture targets, the errors can often be ignored, but for small puncture targets, the errors will be infinitely magnified, resulting in puncture failure or even serious complications, bringing pain to patients and increasing treatment costs.

[0003] Currently, there is no guiding device adapted to the guidance of CT / MRI. After CT / MRI scanning, the most ideal puncture plane and puncture path can be given, and a guiding device that can be adjusted is needed to adapt, so as to avoid the errors caused by physicians' subjective judgment and resulting in surgical failure. Therefore, a multi-degree-of-freedom adjustable percutaneous puncture surgical navigation device is proposed. Summary of the Invention

[0004] The present invention proposes a multi-degree-of-freedom adjustable percutaneous puncture surgical navigation device, which solves the key technologies of the problems of error caused by subjective measurement of operating physicians in a puncture navigation device with multi-stage precision adjustment and safety locking functions under CT / MRI guidance, and surgical failure and medical waste caused by the error.

[0005] The technical solution of the present invention is as follows: A multi-degree-of-freedom adjustable percutaneous puncture surgical navigation device, comprising:

[0006] A stent base, the stent base includes a lower annular base and an upper annular bracket. Between the lower annular base and the upper annular bracket, a first support rod, a second support rod, and a third support rod are respectively fixedly connected. On the surface of the lower annular base, a first fixed rod, a second fixed rod, and a third fixed rod are respectively provided. One end of the first fixed rod is provided with a spherical joint two.

[0007] A longitudinal adjustment mechanism, the longitudinal adjustment mechanism includes a vertical rod provided on the surface of the upper annular bracket, a first precision scale opened on the surface of the vertical rod, a first clamping shell sleeved on the surface of the vertical rod, and a first fixed thread knob threadedly connected to one side of the first clamping shell.

[0008] A transverse adjustment mechanism, the transverse adjustment mechanism includes a cross bar fixedly connected to the surface of the first clamping shell, a second precision scale opened on the surface of the cross bar, a second clamping shell sleeved on the surface of the cross bar, and a second fixed thread knob threadedly connected to the surface of the second clamping shell.

[0009] Puncture guiding mechanism, the puncture guiding mechanism includes a puncture guiding tube, and a spherical joint one is provided at the upper end of the puncture guiding tube.

[0010] Optionally, the first support rod, the second support rod and the third support rod are evenly distributed at 120° on the lower-layer annular base, and the first support rod, the second support rod and the third support rod are laser welded to the surfaces of the lower-layer annular base and the upper-layer annular bracket.

[0011] Optionally, a CT / MRI dual-mode imaging line segment is provided on the outer surface of the puncture guiding tube.

[0012] Optionally, a plurality of fixing components are provided on the surface of the lower-layer annular base. The fixing component includes a U-shaped clamping shell provided on the surface of the lower-layer annular base. One side of the U-shaped clamping shell is fixedly connected with a C-shaped piece, and a fixing screw knob three is threadedly connected to the surface of the U-shaped clamping shell.

[0013] The working principle and beneficial effects of the present invention are as follows:

[0014] First, through multi-dimensional adjustment, the puncture path of the present invention completely follows the pre-designed path of CT / MRI, avoiding the errors caused by the subjective measurement of doctors, improving the success rate of the operation, reducing the operation risk, and enabling inexperienced young doctors to also achieve accurate puncture successfully at one time.

[0015] Second, the present invention is not limited to the puncture navigation device for one part. As long as the skin of the puncture part can be firmly attached to the fixing system, this puncture navigation device can be used to participate in the operation navigation.

[0016] Third, the size of this product can be made into puncture navigation devices of different sizes according to different puncture parts, without the need to additionally design other-shaped puncture devices. Description of the Drawings

[0017] The following further elaborates on the present invention in detail in conjunction with the drawings and specific embodiments.

[0018] Figure 1 is the three-dimensional structure schematic diagram of the present invention Figure 1 ;

[0019] Figure 2 is the three-dimensional structure schematic diagram of the present invention Figure 2 ;

[0020] Figure 3 is the three-dimensional structure schematic diagram of the present invention Figure 3 ;

[0021] In the figure: 101, lower-layer annular base; 102, upper-layer annular bracket; 103, first support rod; 104, second support rod; 105, third support rod; 106, first fixing rod; 107, second fixing rod; 108, third fixing rod; 201, vertical rod; 202, first clamping shell; 203, first fixed-thread knob; 204, first precision scale; 301, cross bar; 302, second clamping shell; 303, second fixed-thread knob; 304, second precision scale; 401, puncture guiding tube; 402, first spherical joint; 403, second spherical joint; 404, CT / MRI dual-mode imaging line segment; 501, C-shaped piece; 502, U-shaped clamping shell; 503, third fixed-thread knob. Detailed implementation mode

[0022] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0023] Embodiment 1

[0024] Please refer to Figure 1 - Figure 3 , the multi-degree-of-freedom adjustable percutaneous puncture surgery navigation device provided by the present invention includes:

[0025] A bracket base, the bracket base includes a lower-layer annular base 101 and an upper-layer annular bracket 102. Between the lower-layer annular base 101 and the upper-layer annular bracket 102, a first support rod 103, a second support rod 104 and a third support rod 105 are respectively fixedly connected. On the surface of the lower-layer annular base 101, a first fixing rod 106, a second fixing rod 107 and a third fixing rod 108 are respectively provided. One end of the first fixing rod 106 is provided with a second spherical joint 403;

[0026] A longitudinal adjustment mechanism, the longitudinal adjustment mechanism includes a vertical rod 201 provided on the surface of the upper-layer annular bracket 102, a first precision scale 204 opened on the surface of the vertical rod 201. A first clamping shell 202 is sleeved on the surface of the vertical rod 201, and a first fixed-thread knob 203 is threadedly connected to one surface of the first clamping shell 202;

[0027] A transverse adjustment mechanism, the transverse adjustment mechanism includes a cross bar 301 fixedly connected to the surface of the first clamping shell 202. A second precision scale 304 is opened on the surface of the cross bar 301. A second clamping shell 302 is sleeved on the surface of the cross bar 301, and a second fixed-thread knob 303 is threadedly connected to the surface of the second clamping shell 302;

[0028] Puncture guiding mechanism. The puncture guiding mechanism includes a puncture guiding tube 401, and a first spherical joint 402 is provided at the upper end of the puncture guiding tube 401.

[0029] Further, the first support rod 103, the second support rod 104, and the third support rod 105 are evenly distributed at 120° on the lower-layer annular base 101. The first support rod 103, the second support rod 104, and the third support rod 105 are laser welded to the surfaces of the lower-layer annular base 101 and the upper-layer annular bracket 102.

[0030] Further, a CT / MRI dual-mode imaging line segment 404 is provided on the outer surface of the puncture guiding tube 401.

[0031] Further, multiple groups of fixing components are provided on the surface of the lower-layer annular base 101. The fixing components include a U-shaped clamping shell 502 provided on the surface of the lower-layer annular base 101. A C-shaped piece 501 is fixedly connected to one side of the U-shaped clamping shell 502. A third fixing screw knob 503 is threadedly connected to the surface of the U-shaped clamping shell 502.

[0032] When performing "lung puncture biopsy": The patient lies flat on the CT bed. After CT scanning, the puncture transverse plane and the puncture point are determined, and the puncture point is marked with a marker pen. The area is routinely covered with a drape and disinfected. The physician takes out the sterilized puncture navigation device under aseptic operation. The center point of the second spherical joint 403 is placed directly above the puncture point. The lower-layer annular base 101 is pressed firmly against the skin around the puncture point. First, loosen the two third fixing screw knobs 503 to adjust the C-shaped piece 501 of the fixing system. After it is completely pressed against the surrounding skin, tighten the two third fixing screw knobs 503 to complete the fixation of the C-shaped piece 501. Then, firmly fix it to the skin with a sterile butterfly adhesive tape;

[0033] The physician first loosens the first fixing screw knob 203 on the surface of the first clamping shell 202, adjusts the cross bar 301 through the first clamping shell 202, and adjusts the position of the puncture guiding tube 401 so that the CT / MRI dual-mode imaging line segment 404 at one end of the puncture guiding tube 401 is completely shown in the puncture transverse plane selected by the CT. Finally, tighten the first fixing screw knob 203 to fix it, so that the puncture path can be completely carried out within the selected plane;

[0034] Then loosen the second fixing screw knob 303 to facilitate the movement of the second clamping shell 302 on the surface of the cross bar 301, and adjust the needle insertion angle between the puncture guiding tube 401 and the skin so that the extension line of the CT / MRI dual-mode imaging line segment 404 at the end face of the puncture guiding tube 401 can pass through the puncture lesion on the CT image. Thus, the complete puncture path design is completed;

[0035] Finally, measure the needle insertion depth on the transverse plane and mark the needle insertion depth on the biopsy needle. In this way, the puncture path design is completed without any pain to the patient, and the designed path has basically no deviation. The doctor only needs to hold the puncture needle with one hand and insert it along the puncture guiding tube 401, and stop inserting the needle when reaching the preset needle insertion depth. Then, perform a repeated CT scan to clarify the position of the puncture needle tip again, take out the biopsy tissue and pull out the needle, and then remove the puncture guiding device and cover the puncture site with dressing to end the operation.

[0036] Implementation Case Two

[0037] "Percutaneous radiofrequency ablation for lumbar spinal nerve pain": The patient lies prone on the CT table. After CT scanning, clarify the transverse plane of the intervertebral foramen where the lumbar spinal nerve is located and the puncture point, and mark the puncture point with a marker pen. Routine draping and disinfection are performed. The doctor takes out the sterilized puncture navigation device under aseptic operation. Place the center point of the spherical joint two 403 directly above the puncture point, and press the lower annular base 101 firmly against the skin around the puncture point. First, loosen the two fixing screw knobs three 503 to adjust and fix the C-shaped piece 503. After it is completely attached to the surrounding skin, tighten the fixing screw knob three 503 to complete the fixation of the C-shaped piece 503. Then, firmly fix it to the skin with a sterile butterfly adhesive tape.

[0038] The doctor first loosens the fixing screw knob one 203 on the clamping shell one 201 to adjust the puncture guiding tube 401 so that the CT / MRI dual-mode imaging line segment 404 on the puncture guiding tube 401 is completely displayed on the puncture transverse plane selected by the CT, and then tightens the fixing screw knob one 203 to fix it. In this way, the puncture path can be completely carried out within the selected plane.

[0039] Then loosen the fixing screw knob two 303 to facilitate the movement of the clamping shell two 302 on the surface of the cross bar 301, and adjust the needle insertion angle between the puncture guiding tube 401 and the skin so that the extension line of the CT / MRI dual-mode imaging line segment 404 on the puncture guiding tube can reach the intervertebral foramen to be entered on the CT image. In this way, the complete puncture path design is completed.

[0040] Finally, measure the needle insertion depth on the transverse plane and mark the needle insertion depth on the biopsy needle. The doctor holds the radiofrequency coagulation cannula needle with one hand and inserts it along the puncture guiding tube 401, and stops inserting the needle when reaching the preset needle insertion depth. Since the position of each person's spinal nerve is slightly deviated, loosen the fixing screw knob one 203 and the fixing screw knob two 303 again at this time. The doctor then fine-tunes the needle tip. When abnormal nerve stimulation appears, tighten the fixing screw knob one 203 and the fixing screw knob two 303 to complete the puncture. Pull out the radiofrequency coagulation cannula needle core, insert the radiofrequency electrode, and start radiofrequency ablation for spinal nerve pain.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-degree-of-freedom adjustable percutaneous puncture surgical navigation device, characterized in that Comprising: A bracket base, the bracket base includes a lower-layer annular base (101) and an upper-layer annular bracket (102), and a first support rod (103), a second support rod (104) and a third support rod (105) are fixedly connected between the lower-layer annular base (101) and the upper-layer annular bracket (102) respectively. On the surface of the lower-layer annular base (101), a first fixing rod (106), a second fixing rod (107) and a third fixing rod (108) are respectively provided. One end of the first fixing rod (106) is provided with a second spherical joint (403); A longitudinal adjustment mechanism, the longitudinal adjustment mechanism includes a vertical rod (201) provided on the surface of the upper-layer annular bracket (102), a first precision scale (204) opened on the surface of the vertical rod (201), a first clamping shell (202) is sleeved on the surface of the vertical rod (201), and a first fixed thread knob (203) is threadedly connected to one side of the first clamping shell (202); A transverse adjustment mechanism, the transverse adjustment mechanism includes a cross bar (301) fixedly connected to the surface of the first clamping shell (202), a second precision scale (304) is opened on the surface of the cross bar (301), a second clamping shell (302) is sleeved on the surface of the cross bar (301), and a second fixed thread knob (303) is threadedly connected to the surface of the second clamping shell (302); A puncture guiding mechanism, the puncture guiding mechanism includes a puncture guiding tube (401), and a first spherical joint (402) is provided at the upper end of the puncture guiding tube (401).

2. The multi-degree-of-freedom adjustable percutaneous puncture surgical navigation device according to claim 1, wherein: The first support rod (103), the second support rod (104) and the third support rod (105) are evenly distributed on the lower-layer annular base (101) at 120°, and the first support rod (103), the second support rod (104) and the third support rod (105) are laser welded on the surfaces of the lower-layer annular base (101) and the upper-layer annular bracket (102).

3. The multi-degree-of-freedom adjustable percutaneous puncture surgical navigation device according to claim 1, wherein: A CT / MRI dual-mode imaging line segment (404) is provided on the outer surface of the puncture guiding tube (401).

4. The multi-degree-of-freedom adjustable percutaneous puncture surgical navigation device according to claim 1, wherein: A plurality of fixing components are provided on the surface of the lower-layer annular base (101), the fixing components include a U-shaped clamping shell (502) provided on the surface of the lower-layer annular base (101), a C-shaped piece (501) is fixedly connected to one side of the U-shaped clamping shell (502), and a third fixed thread knob (503) is threadedly connected to the surface of the U-shaped clamping shell (502).

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