Tumor intervention puncture needle fixing equipment

Abstract

The invention discloses tumor intervention puncture needle fixing equipment which comprises a template fixator body and a plurality of rows of guide blocks evenly arranged on the template fixator body at equal intervals and further comprises needle passages formed in the guide blocks. The first shaft is arranged on the guide block and is connected with the template fixer main body; the multiple rotary knobs are evenly distributed on the template fixator body at equal intervals, and the multiple rotary knobs correspond to the multiple rows of guide blocks in a one-to-one mode; the switching operation is completed through the switching assembly, then the hollow rubber body is loosened to reset the piston, at the moment, the knob is rotated, the adjusting assembly is used for driving the guide block to deflect, then the needle channels are deflected, the multiple needle channels can be adjusted by rotating the knob, the flexibility of the device body is improved, and medical staff can use the device conveniently; and the treatment effect is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a tumor interventional puncture needle fixation device. Background Technology

[0002] Radioactive particle implantation, also known as "interstitial radiotherapy," falls under the category of brachytherapy. It involves using image-guided techniques (CT, ultrasound, MRI) to implant radioactive nuclides (iodine-125 particles) into the tumor, destroying it through close-range irradiation. Traditional particle implantation procedures typically use a flat template fixator or a 3D-printed template customized according to TPS (Transplantation System Design). The flat template fixator has many vertically arranged needle tracks, all pointing in the same direction. Therefore, when the patient's prostate is too large, this type of template cannot guide the puncture needle to avoid bone or blood vessels reaching the designated location on the tumor. The other option is a 3D-printed template customized according to TPS. This template allows the particle implantation needle to be implanted into the tumor at a planned angle and direction, effectively avoiding bone and blood vessels.

[0003] However, the production cycle of this 3D printed template is relatively long. During this stage, the tumor may undergo unpredictable changes, making it impossible to adjust the needle path in real time. This reduces the accuracy of brachytherapy and affects the quality of brachytherapy. At the same time, although the existing planar template fixator has a certain angle adjustment function, it can only adjust one row of needle paths at a time, which is not very flexible. Therefore, we propose a tumor interventional puncture needle fixation device. Summary of the Invention

[0004] The purpose of this invention is to provide a tumor interventional puncture needle fixation device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tumor interventional puncture needle fixation device, comprising a template fixator body and multiple rows of guide blocks evenly and equidistantly arranged on the template fixator body, and further comprising a needle channel, wherein the needle channel is formed on the guide blocks;

[0006] Shaft 1, which is disposed on the guide block and connected to the template holder body;

[0007] The knobs are provided in multiples and are evenly distributed at equal intervals on the template holder body, and each of the multiple knobs corresponds to one of the multiple rows of guide blocks;

[0008] An adjustment component is provided on the template holder body and connected to a shaft. Rotating the knob and using the adjustment component to drive the shaft to rotate causes the needle path to deflect.

[0009] A switching component is provided on the main body of the template fixator. This component allows the adjustment component to be sequentially connected to multiple shafts. Unlike existing technologies, in actual use, the switching operation is completed via the switching component. Then, the hollow rubber body is released to allow the piston to reset. At this point, rotating the knob and using the adjustment component to drive the guide block to deflect causes the needle path to deflect. This allows multiple needle paths to be adjusted individually by rotating the knob, thus improving the flexibility of the device and making it easier for medical personnel to use, thereby improving treatment effectiveness.

[0010] Preferably, the adjustment component includes a worm gear disposed on the shaft one, a hollow shaft two disposed at one end of the shaft one, a worm gear meshing with the worm gear disposed on the hollow shaft two, and the hollow shaft two is connected to the template holder body, rotating the hollow shaft two causes the guide block to deflect;

[0011] One end of the hollow shaft is provided with a gear disk, and the template holder body is provided with a shaft three. The shaft three is provided with a gear disk two that meshes with the gear disk one. Rotating the shaft three will drive the hollow shaft two to rotate.

[0012] One end of the shaft three is provided with a gear plate three, and the template holder body is provided with a shaft four. One end of the shaft four is connected to the knob, and one end of the shaft four is provided with a gear plate four that meshes with the gear plate three. Rotating the knob drives the shaft three to rotate.

[0013] Preferably, the template holder body is provided with a fixing shaft, which slides through the hollow shaft.

[0014] Preferably, the switching component includes a shaft five disposed within the template holder body, a screw disposed on the shaft five, and a hollow shaft six disposed on the gear disc two. A shaft three passes through the hollow shaft six, and a movable frame is disposed on the shaft three. The hollow shaft six is ​​located within the movable frame, and the shaft three slides through the movable frame. A sliding rod is disposed at one end of the movable frame, and the screw passes through the sliding rod. Rotating the shaft five causes the movable frame to move, so that the gear disc two sequentially engages with multiple gear discs one.

[0015] The shaft three is provided with a sliding groove one, and the hollow shaft six is ​​provided with a sliding protrusion one, one end of which is located in the sliding groove one to guide and limit the hollow shaft six;

[0016] A gear disk five is provided at one end of the shaft five, and an auxiliary component is provided inside the knob. The auxiliary component is used to drive the shaft four to move so that the gear disk four disengages from the gear disk three and engages with the gear disk five.

[0017] Preferably, the auxiliary component includes a hollow rubber body disposed at one end of the knob, and a second groove is provided inside the knob. The hollow rubber body is in communication with the second groove. One end of the fourth shaft is located inside the second groove, and a piston is provided at one end of the fourth shaft. Squeezing the hollow rubber body drives the piston to move, thereby moving the fourth shaft.

[0018] The shaft four is provided with a sliding groove three, and the knob is provided with a sliding protrusion three. One end of the sliding protrusion three is located in the sliding groove three to guide and limit the shaft four.

[0019] Preferably, springs are provided at both ends of the hollow shaft, and one end of each spring is connected to the inner wall of the movable frame.

[0020] Preferably, one end of the sliding frame is provided with a round rod, the main body of the template holder is provided with a four-slide groove, one end of the round rod passes through the four-slide groove, and multiple round protrusions are evenly arranged at equal intervals on the main body of the template holder.

[0021] Preferably, the template holder body is provided with a fixing component, which is used to fix the template holder body.

[0022] Preferably, the fixing component includes a strap disposed on the body of the template fixator, the strap being a Velcro design.

[0023] Preferably, the fixing component includes a flexible adhesive strip disposed on the template holder body.

[0024] The present invention has at least the following beneficial effects:

[0025] Unlike existing technologies, in actual use, the switching operation is completed by switching components. Then, the hollow rubber body is released to allow the piston to reset. At this time, the knob is rotated and the guide block is deflected by the adjustment component, thereby deflecting the needle channel. Thus, multiple needle channels can be adjusted by rotating the knob, which improves the flexibility of the device body, making it more convenient for medical staff to use and improving the treatment effect. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0027] Figure 2 For the present invention Figure 1 Schematic diagram of partial cross-section;

[0028] Figure 3 For the present invention Figure 2 Schematic diagram of partial cross-section;

[0029] Figure 4 For the present invention Figure 3Schematic diagram of partial cross-section;

[0030] Figure 5 For the present invention Figure 4 Schematic diagram of partial cross-section;

[0031] Figure 6 For the present invention Figure 5 Schematic diagram of partial cross-section;

[0032] Figure 7 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention.

[0033] In the diagram: 1- Template holder body; 2- Guide block; 3- Needle path; 4- Shaft 1; 5- Knob; 6- Adjustment component; 7- Switching component; 61- Worm gear; 62- Hollow shaft 2; 63- Worm; 64- Gear disc 1; 65- Shaft 3; 66- Gear disc 2; 67- Gear disc 3; 68- Shaft 4; 69- Gear disc 4; 71- Fixed shaft; 72- Shaft 5; 73- Screw; 74- Hollow shaft 6; 75- Movable frame; 76- Sliding rod; 77- Slide groove 1; 78- Slide protrusion 1; 79- Gear disc 5; 81- Auxiliary component; 82- Hollow rubber body; 83- Slide groove 2; 84- Piston; 85- Slide groove 3; 86- Slide protrusion 3; 87- Spring; 88- Round rod; 89- Slide groove 4; 91- Round protrusion; 92- Fixed component; 93- Strap; 94- Flexible adhesive. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] Please see Figure 1-6 The present invention provides a technical solution: a tumor interventional puncture needle fixation device, including a template fixator body 1 and multiple rows of guide blocks 2 evenly arranged on the template fixator body 1 at equal intervals, and also includes a needle channel 3, which is opened on the guide blocks 2, and the puncture needle is inserted into the human body through the needle channel 3.

[0037] Shaft 4 is fixedly connected to guide block 2 and rotatably connected to template holder body 1;

[0038] Knob 5, multiple knobs 5 are provided and are evenly and equidistantly arranged on the template holder body 1, and multiple knobs 5 correspond one-to-one with multiple rows of guide blocks 2. One end of knob 5 is located inside the template holder body 1 and is rotatably connected to it through a bearing.

[0039] Adjustment component 6 is set on the template holder body 1. In the initial state, adjustment component 6 is only connected to one shaft 4. Rotating knob 5 and using adjustment component 6 to drive shaft 4 to rotate will drive guide block 2 to deflect, thereby causing needle path 3 to deflect.

[0040] The switching component 7 is set on the main body 1 of the template fixator. The switching component 7 is used to connect the adjustment component 6 to multiple shafts 4 in sequence. Thus, the adjustment component 6 can be connected to multiple shafts 4 respectively by switching component 7, so that multiple needle channels 3 can be adjusted by rotating the knob 5. This improves the flexibility of the main body of the device, making it more convenient for medical staff to use and improving the treatment effect.

[0041] The adjusting component 6 includes a worm gear 61 fixedly connected to shaft 4. A hollow shaft 62 is provided at one end of shaft 4. The hollow shaft 62 is rotatably connected to the inner wall of the template holder body 1. A worm 63 that meshes with the worm gear 61 is fixedly connected to the hollow shaft 62. Rotating the hollow shaft 62 drives the worm 63 to rotate, thereby driving the worm gear 61 to rotate, which in turn drives shaft 4 to rotate, thereby causing the guide block 2 to deflect.

[0042] One end of the hollow shaft 62 is fixedly connected to the gear disk 64. The template holder body 1 is rotatably connected to the shaft 65 through the bearing. The shaft 65 is provided with the gear disk 66 that meshes with the gear disk 64. Rotating the shaft 65 drives the gear disk 66 to rotate, thereby driving the gear disk 64 to rotate, and in turn driving the hollow shaft 62 to rotate.

[0043] One end of shaft 65 is fixedly connected to gear disk 67, and shaft 68 is rotatably connected inside the template holder body 1. One end of shaft 68 is connected to knob 5, and one end of shaft 68 is fixedly connected to gear disk 69 that meshes with gear disk 67. Rotating knob 5 drives shaft 68 to rotate, thereby driving gear disk 69 to rotate, which in turn drives gear disk 67 to rotate, thereby driving shaft 65 to rotate.

[0044] A fixed shaft 71 is fixedly connected inside the template holder body 1. The fixed shaft 71 slides through the hollow shaft 62, so that the hollow shaft 62 can rotate relative to the fixed shaft 71. The fixed shaft 71 further improves the stability of the hollow shaft 62 when it rotates, thereby improving the limiting and fixing effect of the needle channel 3 on the puncture needle.

[0045] The switching assembly 7 includes a fifth shaft 72 rotatably connected to the template holder body 1 via a bearing. A screw 73 is fixedly connected to the fifth shaft 72, and a hollow shaft 74 is fixedly connected to the second gear 66. A third shaft 65 slides through the hollow shaft 74. A movable frame 75 is provided on the third shaft 65, and the hollow shaft 74 is located inside the movable frame 75. The third shaft 65 slides through the movable frame 75, and a sliding rod 76 is fixedly connected to one end of the movable frame 75. The screw 73 is threaded through the sliding rod 76. Rotating the fifth shaft 72 drives the screw 73 to rotate, thereby driving the sliding rod 76 to move, which in turn drives the movable frame 75 to move, so that the second gear 66 engages with multiple first gears 64 in sequence to complete the switching.

[0046] A sliding groove 77 is provided on the shaft 3 65, and a sliding protrusion 78 is fixedly connected to the inner wall of the hollow shaft 6 74. One end of the sliding protrusion 78 is located in the sliding groove 77 to guide and limit the hollow shaft 6 74.

[0047] One end of shaft 5 72 is fixedly connected to gear disk 5 79, and an auxiliary component 81 is provided inside the knob 5. The auxiliary component 81 drives shaft 4 68 to move, so that gear disk 4 69 disengages from gear disk 3 67 and engages with gear disk 5 79. Thus, rotating the knob 5 can drive shaft 5 72 to rotate.

[0048] The auxiliary component 81 includes a hollow rubber body 82 fixedly connected to one end of the knob 5, and a second slide groove 83 is provided inside the knob 5. The hollow rubber body 82 is connected to the second slide groove 83. One end of the shaft 68 is located inside the second slide groove 83, and a piston 84 is fixedly connected to one end of the shaft 68. The piston 84 is slidably connected to the inner wall of the second slide groove 83. Squeezing the hollow rubber body 82 causes the piston 84 to move, thereby causing the shaft 68 to move, and then causing the gear plate 69 to move.

[0049] A sliding groove 85 is provided on the shaft 68, and a sliding protrusion 86 is fixedly connected to the inner wall of the knob 5. One end of the sliding protrusion 86 is located in the sliding groove 85 and is slidably connected to its inner wall, which is used to guide and limit the shaft 68.

[0050] Both ends of the hollow shaft 6 74 are provided with springs 87, one end of the spring 87 is fixedly connected to the inner wall of the movable frame 75, and the other end is in contact with the end of the hollow shaft 6 74. Thus, when the movable frame 75 is moved, the spring 87 pushes the toothed disc 2 66 to move, so that the toothed disc 2 66 meshes more smoothly with the toothed disc 1 64.

[0051] A round rod 88 is fixedly connected to one end of the sliding frame. A sliding groove 89 is provided on the main body 1 of the template holder. One end of the round rod 88 slides through the sliding groove 89. Multiple round protrusions 91 are fixedly connected at equal intervals on the main body 1 of the template holder. Each round protrusion 91 corresponds to a guide block 2 in a row. Thus, when medical staff switch, they can determine which needle channel 3 to adjust when rotating the knob 5 according to which round protrusion 91 the round rod 88 moves to. This is convenient and practical.

[0052] The template holder body 1 is equipped with a fixing component 92, which is used to fix the device body to the human body.

[0053] The fixing component 92 includes a strap 93 that is fixedly connected to the template fixing body 1. The strap 93 adopts a Velcro design for easy disassembly and installation.

[0054] During the normal operation of the tumor interventional puncture needle fixation device, squeezing the hollow rubber body 82 pushes the piston 84 to move, thereby moving the shaft 68, which in turn causes the gear disc 69 to disengage from the gear disc 67 and engage with the gear disc 79. While squeezing the hollow rubber body 82, rotating the knob 5 causes the gear disc 79 to rotate, which in turn causes the shaft 72 to rotate, which in turn causes the screw 73 to rotate, which in turn causes the sliding rod 76 to move, which in turn causes the movable frame 75 to move. This allows the gear disc 66 to sequentially engage with multiple gear discs 64, completing the switching operation. Then, the hollow rubber body 82 is released. The rubber body 82 is rotated to reset the piston 84. At this time, rotating the knob 5 drives the gear plate 67 to rotate, which in turn drives the shaft 65 to rotate, which in turn drives the hollow shaft 74 to rotate, which in turn drives the gear plate 66 to rotate, which in turn drives the gear plate 64 to rotate, which in turn drives the hollow shaft 62 to rotate, which in turn drives the worm gear 63 to rotate, which in turn drives the worm wheel 61 to rotate, which in turn drives the shaft 4 to rotate, which in turn drives the guide block 2 to deflect, which in turn deflects the needle track 3. Thus, rotating the knob 5 can adjust multiple needle tracks 3 separately, which improves the flexibility of the main body of the device, making it easier for medical staff to use and improving the treatment effect.

[0055] Example 2

[0056] Please see Figure 2-7 The present invention provides a technical solution: a tumor interventional puncture needle fixation device, including a template fixator body 1 and multiple rows of guide blocks 2 evenly arranged on the template fixator body 1 at equal intervals, and also includes a needle channel 3, which is opened on the guide blocks 2, and the puncture needle is inserted into the human body through the needle channel 3.

[0057] Shaft 4 is fixedly connected to guide block 2 and rotatably connected to template holder body 1;

[0058] Knob 5, multiple knobs 5 are provided and are evenly and equidistantly arranged on the main body 1 of the template holder, and multiple knobs 5 correspond one-to-one with multiple rows of guide blocks 2;

[0059] Adjustment component 6 is set on the template holder body 1. In the initial state, adjustment component 6 is only connected to one shaft 4. Rotating knob 5 and using adjustment component 6 to drive shaft 4 to rotate will drive guide block 2 to deflect, thereby causing needle path 3 to deflect.

[0060] The switching component 7 is set on the main body 1 of the template fixator. The switching component 7 is used to connect the adjustment component 6 to multiple shafts 4 in sequence. Thus, the adjustment component 6 can be connected to multiple shafts 4 respectively by switching component 7, so that multiple needle channels 3 can be adjusted by rotating the knob 5. This improves the flexibility of the main body of the device, making it more convenient for medical staff to use and improving the treatment effect.

[0061] The adjusting component 6 includes a worm gear 61 fixedly connected to shaft 4. A hollow shaft 62 is provided at one end of shaft 4. The hollow shaft 62 is rotatably connected to the inner wall of the template holder body 1. A worm 63 that meshes with the worm gear 61 is fixedly connected to the hollow shaft 62. Rotating the hollow shaft 62 drives the worm 63 to rotate, thereby driving the worm gear 61 to rotate, which in turn drives shaft 4 to rotate, thereby causing the guide block 2 to deflect.

[0062] One end of the hollow shaft 62 is fixedly connected to the gear disk 64. The template holder body 1 is rotatably connected to the shaft 65 through the bearing. The shaft 65 is provided with the gear disk 66 that meshes with the gear disk 64. Rotating the shaft 65 drives the gear disk 66 to rotate, thereby driving the gear disk 64 to rotate, and in turn driving the hollow shaft 62 to rotate.

[0063] One end of shaft 65 is fixedly connected to gear disk 67, and shaft 68 is rotatably connected inside the template holder body 1. One end of shaft 68 is connected to knob 5, and one end of shaft 68 is fixedly connected to gear disk 69 that meshes with gear disk 67. Rotating knob 5 drives shaft 68 to rotate, thereby driving gear disk 69 to rotate, which in turn drives gear disk 67 to rotate, thereby driving shaft 65 to rotate.

[0064] A fixed shaft 71 is fixedly connected inside the template holder body 1. The fixed shaft 71 slides through the hollow shaft 62, so that the hollow shaft 62 can rotate relative to the fixed shaft 71. The fixed shaft 71 further improves the stability of the hollow shaft 62 when it rotates, thereby improving the limiting and fixing effect of the needle channel 3 on the puncture needle.

[0065] The switching assembly 7 includes a fifth shaft 72 rotatably connected to the template holder body 1 via a bearing. A screw 73 is fixedly connected to the fifth shaft 72, and a hollow shaft 74 is fixedly connected to the second gear 66. A third shaft 65 slides through the hollow shaft 74. A movable frame 75 is provided on the third shaft 65, and the hollow shaft 74 is located inside the movable frame 75. The third shaft 65 slides through the movable frame 75, and a sliding rod 76 is fixedly connected to one end of the movable frame 75. The screw 73 is threaded through the sliding rod 76. Rotating the fifth shaft 72 drives the screw 73 to rotate, thereby driving the sliding rod 76 to move, which in turn drives the movable frame 75 to move, so that the second gear 66 engages with multiple first gears 64 in sequence to complete the switching.

[0066] A sliding groove 77 is provided on the shaft 3 65, and a sliding protrusion 78 is fixedly connected to the inner wall of the hollow shaft 6 74. One end of the sliding protrusion 78 is located in the sliding groove 77 to guide and limit the hollow shaft 6 74.

[0067] One end of shaft 5 72 is fixedly connected to gear disk 5 79, and an auxiliary component 81 is provided inside the knob 5. The auxiliary component 81 drives shaft 4 68 to move, so that gear disk 4 69 disengages from gear disk 3 67 and engages with gear disk 5 79. Thus, rotating the knob 5 can drive shaft 5 72 to rotate.

[0068] The auxiliary component 81 includes a hollow rubber body 82 fixedly connected to one end of the knob 5, and a second slide groove 83 is provided inside the knob 5. The hollow rubber body 82 is connected to the second slide groove 83. One end of the shaft 68 is located inside the second slide groove 83, and a piston 84 is fixedly connected to one end of the shaft 68. The piston 84 is slidably connected to the inner wall of the second slide groove 83. Squeezing the hollow rubber body 82 causes the piston 84 to move, thereby causing the shaft 68 to move, and then causing the gear plate 69 to move.

[0069] A sliding groove 85 is provided on the shaft 68, and a sliding protrusion 86 is fixedly connected to the inner wall of the knob 5. One end of the sliding protrusion 86 is located in the sliding groove 85 and is slidably connected to its inner wall, which is used to guide and limit the shaft 68.

[0070] Both ends of the hollow shaft 6 74 are provided with springs 87, one end of the spring 87 is fixedly connected to the inner wall of the movable frame 75, and the other end is in contact with the end of the hollow shaft 6 74. Thus, when the movable frame 75 is moved, the spring 87 pushes the toothed disc 2 66 to move, so that the toothed disc 2 66 meshes more smoothly with the toothed disc 1 64.

[0071] A round rod 88 is fixedly connected to one end of the sliding frame. A sliding groove 89 is provided on the main body 1 of the template holder. One end of the round rod 88 slides through the sliding groove 89. Multiple round protrusions 91 are fixedly connected at equal intervals on the main body 1 of the template holder. Each round protrusion 91 corresponds to a guide block 2 in a row. Thus, when medical staff switch, they can determine which needle channel 3 to adjust when rotating the knob 5 according to which round protrusion 91 the round rod 88 moves to. This is convenient and practical.

[0072] The template holder body 1 is equipped with a fixing component 92, which is used to fix the device body to the human body.

[0073] The fixing component 92 includes a flexible adhesive tape 94 that is fixedly connected to the template fixing body 1. The device body is fixed by attaching it to the patient's skin through the flexible adhesive tape 94.

[0074] During the normal operation of the tumor interventional puncture needle fixation device, squeezing the hollow rubber body 82 pushes the piston 84 to move, thereby moving the shaft 68, which in turn causes the gear disc 69 to disengage from the gear disc 67 and engage with the gear disc 79. While squeezing the hollow rubber body 82, rotating the knob 5 causes the gear disc 79 to rotate, which in turn causes the shaft 72 to rotate, which in turn causes the screw 73 to rotate, which in turn causes the sliding rod 76 to move, which in turn causes the movable frame 75 to move. This allows the gear disc 66 to sequentially engage with multiple gear discs 64, completing the switching operation. Then, the hollow rubber body 82 is released. The rubber body 82 is rotated to reset the piston 84. At this time, rotating the knob 5 drives the gear plate 67 to rotate, which in turn drives the shaft 65 to rotate, which in turn drives the hollow shaft 74 to rotate, which in turn drives the gear plate 66 to rotate, which in turn drives the gear plate 64 to rotate, which in turn drives the hollow shaft 62 to rotate, which in turn drives the worm gear 63 to rotate, which in turn drives the worm wheel 61 to rotate, which in turn drives the shaft 4 to rotate, which in turn drives the guide block 2 to deflect, which in turn deflects the needle track 3. Thus, rotating the knob 5 can adjust multiple needle tracks 3 separately, which improves the flexibility of the main body of the device, making it easier for medical staff to use and improving the treatment effect.

[0075] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0076] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tumor interventional puncture needle fixation device, comprising a template fixator body (1) and multiple rows of guide blocks (2) evenly spaced on the template fixator body (1), characterized in that: It also includes a needle channel (3), which is formed on the guide block (2); Shaft 1 (4), which is disposed on the guide block (2) and connected to the template holder body (1); The knob (5) is provided in multiple and evenly distributed on the template holder body (1), and the multiple knobs (5) correspond one-to-one with the multiple rows of guide blocks (2); Adjustment component (6), the adjustment component (6) is set on the template holder body (1) and connected to a shaft (4), the knob (5) is rotated and the shaft (4) is driven to rotate by the adjustment component (6) so that the needle path (3) deflects; A switching component (7) is disposed on the template holder body (1) and the switching component (7) is used to connect the adjustment component (6) to multiple shafts (4) in sequence.

2. The tumor interventional puncture needle fixation device according to claim 1, characterized in that: The adjustment component (6) includes a worm gear (61) disposed on the shaft (4), a hollow shaft (62) disposed at one end of the shaft (4), a worm (63) disposed on the hollow shaft (62) and meshing with the worm gear (61), and the hollow shaft (62) is connected to the template holder body (1), and rotating the hollow shaft (62) causes the guide block (2) to deflect; One end of the hollow shaft 2 (62) is provided with a gear disk 1 (64), and the template holder body (1) is provided with a shaft 3 (65). The shaft 3 (65) is provided with a gear disk 2 (66) that meshes with the gear disk 1 (64). Rotating the shaft 3 (65) will drive the hollow shaft 2 (62) to rotate. One end of the shaft three (65) is provided with a gear plate three (67), and the template holder body (1) is provided with a shaft four (68). One end of the shaft four (68) is connected to the knob (5), and one end of the shaft four (68) is provided with a gear plate four (69) that meshes with the gear plate three (67). Rotating the knob (5) drives the shaft three (65) to rotate.

3. The tumor interventional puncture needle fixation device according to claim 2, characterized in that: The template holder body (1) is provided with a fixing shaft (71), which slides through the hollow shaft (62).

4. The tumor interventional puncture needle fixation device according to claim 3, characterized in that: The switching component (7) includes a fifth shaft (72) disposed in the template holder body (1), a screw (73) disposed on the fifth shaft (72), and a hollow sixth shaft (74) disposed on the second gear disc (66). A third shaft (65) passes through the hollow sixth shaft (74), and a movable frame (75) is disposed on the third shaft (65). The hollow sixth shaft (74) is located inside the movable frame (75). The third shaft (65) slides through the movable frame (75), and a sliding rod (76) is disposed at one end of the movable frame (75). The screw (73) passes through the sliding rod (76). Rotating the fifth shaft (72) drives the movable frame (75) to move, so that the second gear disc (66) meshes with multiple first gear discs (64) in sequence. The shaft three (65) is provided with a sliding groove one (77), and the hollow shaft six (74) is provided with a sliding protrusion one (78). One end of the sliding protrusion one (78) is located in the sliding groove one (77) to guide and limit the hollow shaft six (74). One end of the shaft five (72) is provided with a toothed disc five (79), and the knob (5) is provided with an auxiliary component (81). The auxiliary component (81) is used to drive the shaft four (68) to move so that the toothed disc four (69) disengages from the toothed disc three (67) and engages with the toothed disc five (79).

5. The tumor interventional puncture needle fixation device according to claim 4, characterized in that: The auxiliary component (81) includes a hollow rubber body (82) disposed at one end of the knob (5), and a second groove (83) is provided in the knob (5). The hollow rubber body (82) is connected to the second groove (83). One end of the shaft (68) is located in the second groove (83), and a piston (84) is provided at one end of the shaft (68). Squeezing the hollow rubber body (82) drives the piston (84) to move, so that the shaft (68) moves. The shaft four (68) is provided with a sliding groove three (85), and the knob (5) is provided with a sliding protrusion three (86). One end of the sliding protrusion three (86) is located in the sliding groove three (85) to guide and limit the shaft four (68).

6. The tumor interventional puncture needle fixation device according to claim 5, characterized in that: Both ends of the hollow shaft (74) are provided with springs (87), and one end of the spring (87) is connected to the inner wall of the movable frame (75).

7. The tumor interventional puncture needle fixation device according to claim 6, characterized in that: One end of the sliding frame is provided with a round rod (88), and the template holder body (1) is provided with a sliding groove (89). One end of the round rod (88) passes through the sliding groove (89), and multiple round protrusions (91) are evenly arranged at equal intervals on the template holder body (1).

8. The tumor interventional puncture needle fixation device according to claim 7, characterized in that: The template holder body (1) is provided with a fixing component (92), which is used to fix the template holder body (1).

9. The tumor interventional puncture needle fixation device according to claim 8, characterized in that: The fixing component (92) includes a strap (93) disposed on the template fixing body (1), the strap (93) being a Velcro design.

10. A tumor interventional puncture needle fixation device according to claim 7, characterized in that: The fixing component (92) includes a flexible adhesive tape (94) disposed on the template fixing body (1).

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