Three-axis adjustable positioner for vertebral pedicle positioning

Abstract

The utility model provides a three-axis adjustable positioner for positioning a vertebral pedicle, which comprises a puncture outer sleeve, a puncture inner core guide rod, a guide rod fixing plate, a guide rod force application plate, an anchoring inner core, an inner core fixing plate and an inner core force application plate, the guide rod fixing plate is fixedly mounted at the top end of the puncture inner core guide rod, and the guide rod force application plate is fixedly mounted on the surface of the guide rod fixing plate; the inner core fixing plate is fixedly mounted at the top end of the anchoring inner core, and the inner core force application plate is fixedly mounted on the surface of the inner core fixing plate; due to the arrangement of the puncture outer sleeve and the anchoring inner core, accurate positioning can be achieved, and the risk that a patient and medical staff are radiated due to a long-time operation is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to orthopedics operation technical field especially, relates to a three -axis adjustable positioner of pedicle positioning. BACKGROUND

[0002] Pedicle positioning technology has an important role in spinal surgery, especially in the operation process of vertebroplasty, percutaneous pedicle implantation and endoscopic spine, its accuracy and stability directly affect the success rate of operation and the recovery of patients. The traditional positioning technology mainly depends on intraoperative fluoroscopy, which not only increases the operation time, but also causes radiation risk to patients and medical staff. In order to solve these problems, a three -axis adjustable positioner of pedicle positioning is proposed to improve the accuracy and safety of operation. However, the existing pedicle positioning structure still has the problems of inaccurate positioning and inability to prevent radiation risk of patients and medical staff caused by long time operation.

[0003] Therefore, it is necessary to invent a three -axis adjustable positioner of pedicle positioning. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems, the utility model provides a three -axis adjustable positioner of pedicle positioning to solve the problems of the existing pedicle positioning structure, such as inaccurate positioning and inability to prevent radiation risk of patients and medical staff caused by long time operation. A three -axis adjustable positioner of pedicle positioning, including puncture outer sleeve, puncture inner heart guide rod, guide rod fixed plate, guide rod force plate, anchoring inner core, inner core fixed plate and inner core force plate, wherein: the puncture inner heart guide rod or the anchoring inner core is slidably installed in the inside of the puncture outer sleeve, and the guide rod fixed plate is fixedly installed at the top end of the puncture inner heart guide rod, and the guide rod force plate is fixedly installed on the surface of the guide rod fixed plate; the inner core fixed plate is fixedly installed at the top end of the anchoring inner core, and the inner core force plate is fixedly installed on the surface of the inner core fixed plate.

[0005] The puncture outer sleeve includes sleeve body, conical end, positioning end and fixed leather ring, the conical end is fixedly installed at the head end of the sleeve body, and the positioning end is fixedly installed at the tail end of the sleeve body; the fixed leather ring is fixedly installed on the outside of the positioning end.

[0006] The anchoring inner core includes anchoring pipeline, positioning seat, positioning pipeline and anchoring tooth, the positioning seat is fixedly installed on the inner wall of the anchoring pipeline, and the positioning pipeline is fixedly installed on the positioning seat; the anchoring tooth is fixedly installed at the top end of the anchoring pipeline.

[0007] The sleeve main body inside the puncture outer sleeve is made of a medical plastic pipeline with a length of 115mm, an outer diameter of 3.5mm and an inner diameter of 3.0mm; the conical end head is conical, the length of the conical end head is 10mm, the outer diameter of the farthest end is 3.2mm, and the inner diameter is 3.0mm; the fixed leather hoop is made of an annular rubber hoop, and the fixed leather hoop can be deformed, the fixed leather hoop can cover the guide rod fixing plate and the inner core fixing plate inside it, and has the following effects, ① guiding effect: the puncture outer sleeve provides a stable guiding path for the puncture inner core guide rod, ensures the accuracy of the direction and position in the puncture process, the inner diameter of the sleeve main body matches the outer diameter of the puncture inner core guide rod and the anchor inner core, so that it can smoothly slide and provide support during operation; ② positioning and fixing effect: the annular rubber hoop of the fixed leather hoop can be deformed, and the guide rod fixing plate and the inner core fixing plate are covered inside it, which further enhances the stability of the positioner; ③ support rotation and adjustment: the puncture outer sleeve allows the puncture inner core guide rod and the anchor inner core to slide and rotate inside it, and by rotating the angle and position of the anchor inner core, accurate positioning is ensured.

[0008] The outer diameter of the anchor pipeline inside the anchor inner core is 3mm, and the outer diameter of the positioning pipeline is 1mm, the positioning pipeline adopts 3 groups, and is evenly distributed and installed inside the anchor pipeline through the positioning seat; the positioning pipeline can be inserted into a positioning guide needle with a diameter of 0.8mm and a length of 200mm; the anchor teeth adopt three groups of metal sharp heads, and have the following effects, ① preliminary positioning: the anchor inner core contains multiple positioning pipelines, one of which can be preliminarily positioned through the positioning guide needle, which ensures the initial fixation of the inner core on the target position; ② rotation adjustment: the preliminarily positioned positioning pipeline is the center, and the anchor inner core can be rotated and adjusted. This design allows fine adjustment of the position of the inner core after positioning to ensure more accurate positioning; ③ double-point fixation: after rotating to the appropriate position, a second positioning guide needle is inserted through another positioning pipeline to realize two-point positioning. The design of two-point positioning provides a stable fixing basis, so that the inner core remains stable during the operation and does not rotate randomly; ④ final fixation: the anchor inner core is fixed on the bone through the three anchor teeth, providing the final stability. The anchor teeth penetrate into the bone, ensuring that the position of the inner core does not move during the entire operation.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The utility model discloses a puncture outer sleeve's setting has following effect, ① guide effect: puncture outer sleeve provides a stable guide path for puncture inner heart guide rod, ensures the accuracy of direction and position in the puncture process, and the inner diameter of sleeve main part and the outer diameter of puncture inner heart guide rod and anchoring inner core are matched, make it can slide smoothly, and provide support in the operation process, ② positioning and fixed effect: the annular rubber hoop of fixed leather band can produce deformation, and the guide rod fixed plate and inner core fixed plate are covered in its inside, further enhanced the stability of positioner, ③ support rotation and adjust: puncture outer sleeve allows puncture inner heart guide rod and anchoring inner core to slide and rotate in its inside, through the angle and position of rotating anchoring inner core, ensure accurate positioning.

[0011] The utility model discloses the setting of anchoring inner core has following effect, ① preliminary positioning: anchoring inner core contains multiple positioning pipeline, and one positioning pipeline can be through the positioning guide needle and first preliminary positioning, and this step ensures the initial fixation of inner core on target position, ② rotation adjustment: the positioning pipeline of preliminary positioning is the center, and anchoring inner core can carry out rotation adjustment. This design allows the position of inner core to be fine-tuned after positioning to ensure more accurate positioning, ③ double -point fixed: after rotating to the suitable position, through another positioning pipeline and insert the second positioning guide needle, realize two -point positioning. The design of two -point positioning provides stable fixed base, makes inner core keep stable in the operation process, and will not rotate at will, ④ final fixation: anchoring inner core is fixed on the bone through three anchoring teeth, provides the final stability. Anchoring tooth goes into the bone, ensures the position of inner core to not move in the whole operation process. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the installation after -showing of the utility model puncture inner heart guide rod.

[0013] Figure 2 It is the installation after -showing of the utility model anchoring inner core.

[0014] Figure 3 It is the structure showing of the utility model puncture outer sleeve.

[0015] Figure 4 It is the structure showing of the utility model anchoring inner core.

[0016] In the drawing:

[0017] Puncture outer sleeve 1, sleeve main body 11, conical end 12, positioning end 13, fixed leather band 14, puncture inner heart guide rod 2, guide rod fixed plate 3, guide rod force plate 4, anchoring inner core 5, anchoring pipeline 51, positioning seat 52, positioning pipeline 53, anchoring tooth 54, inner core fixed plate 6, inner core force plate 7. DETAILED DESCRIPTION

[0018] In order for the person skilled in the art to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0019] As shown in the accompanying Figure 1 to the accompanying Figure 4 as shown.

[0020] The utility model provides a kind of three-axis adjustable positioner of pedicle positioning, including puncture outer sleeve 1, puncture inner core guide rod 2, guide rod fixed plate 3, guide rod force plate 4, anchoring inner core 5, inner core fixed plate 6 and inner core force plate 7, wherein: puncture inner core guide rod 2 or anchoring inner core 5 sliding installation is in the inside of puncture outer sleeve 1, and guide rod fixed plate 3 is fixedly installed at the top end of puncture inner core guide rod 2, and the guide rod force plate 4 is fixedly installed on the surface of guide rod fixed plate 3;The inner core fixed plate 6 is fixedly installed at the top end of anchoring inner core 5, and the inner core force plate 7 is fixedly installed on the surface of inner core fixed plate 6.

[0021] Puncture outer sleeve 1 includes sleeve main body 11, conical end 12, positioning end 13 and fixed leather hoop 14, and conical end 12 is fixedly installed at the head end of sleeve main body 11, and positioning end 13 is fixedly installed at the tail end of sleeve main body 11;The fixed leather hoop 14 is fixedly installed on the outside of positioning end 13.

[0022] Anchoring inner core 5 includes anchoring pipeline 51, positioning seat 52, positioning pipeline 53 and anchoring tooth 54, and positioning seat 52 is fixedly installed on the inner wall of anchoring pipeline 51, and positioning pipeline 53 is fixedly installed on positioning seat 52;The anchoring tooth 54 is fixedly installed at the top end of anchoring pipeline 51.

[0023] The three-axis adjustable positioner of pedicle positioning is a kind of medical instrument for accurately positioning pedicle, aims at reducing the number of perspective and time in surgical process, improves surgical efficiency and safety.The detailed working principle of the positioner is as follows:

[0024] Assembly introduction

[0025] Puncture outer sleeve 1: it is composed of sleeve main body 11, conical end 12, positioning end 13 and fixed leather hoop 14, mainly used for guiding and protecting.

[0026] Puncture inner core guide rod 2: sliding installation is in the inside of puncture outer sleeve 1, for puncture.

[0027] Guide rod fixed plate 3: fixedly installed at the top end of puncture inner core guide rod 2.

[0028] Guide rod force plate 4: fixedly installed on the surface of guide rod fixed plate 3.

[0029] Anchoring inner core 5: including anchoring pipe 51, positioning seat 52, positioning pipe 53 and anchoring teeth 54, used for final positioning and fixing.

[0030] Inner core fixed plate 6: fixedly installed on the top end of anchoring inner core 5.

[0031] Inner core force plate 7: fixedly installed on the surface of inner core fixed plate 6.

[0032] Working steps

[0033] 1. Preliminary positioning:

[0034] Insert the puncture outer sleeve 1 into the surgical area, use the conical end head 12 to facilitate access to the target area, and fix the skin ring 14 to ensure its stability.

[0035] Slide the puncture inner core guide rod 2 into the puncture outer sleeve 1, and use the guide rod force plate 4 to apply a pushing force to make the puncture inner core guide rod 2 penetrate to the predetermined position, then pull out the puncture inner core guide rod 2 outward and insert the anchoring inner core 5.

[0036] 2. Initial anchoring:

[0037] Slide the anchoring inner core 5 into the puncture outer sleeve 1, and insert the positioning guide needle through one of the positioning pipes 53 to fix it on the bone. This step ensures the preliminary fixation of the anchoring inner core 5.

[0038] 3. Rotation adjustment:

[0039] Take the initially fixed positioning pipe 53 as the center, rotate the anchoring inner core 5 to the appropriate position. During rotation, use the guide rod fixed plate 3 and the inner core fixed plate 6 to ensure stability and accuracy.

[0040] 4. Double-point positioning:

[0041] After rotating to the appropriate position, insert a second positioning guide needle through the other positioning pipe 53 to achieve double-point positioning. Double-point positioning provides a more stable foundation for the anchoring inner core 5 to not rotate randomly during the operation.

[0042] 5. Final fixation:

[0043] Push the anchoring inner core 5 towards the bone to make the anchoring teeth 54 penetrate into the bone. The three anchoring teeth 54 provide a firm final fixation to ensure the stability of the inner core during the entire operation.

[0044] 6. Pedicle puncture:

[0045] The anchorable Kirschner wire is used for performing pedicle puncture, vertebroplasty, percutaneous pedicle implantation or positioning of a spinal endoscope. Through the stable positioner structure, the number and time of fluoroscopy during the operation are reduced, the radiation risk is reduced, and the operation efficiency and safety are improved.

[0046] Conclusions

[0047] The three-axis adjustable positioner for pedicle positioning achieves efficient positioning during the operation through a series of accurate positioning and fixing steps. The design not only simplifies the operation process, but also significantly improves the positioning accuracy and stability, ensuring the smooth operation and safety of the patient.

[0048] The technical scheme of the utility model, or the technical scheme inspired by the utility model technical scheme by the person skilled in the art, designs similar technical scheme, and achieves the above technical effect, which falls within the protection scope of the utility model.

Claims

1. A pedicle-located tri-axial adjustable positioner, characterized by: The utility model provides a kind of puncture outer sleeve (1), puncture inner core guide rod (2), guide rod fixed plate (3), guide rod force plate (4), anchoring inner core (5), inner core fixed plate (6) and inner core force plate (7), wherein: puncture inner core guide rod (2) or anchoring inner core (5) sliding installation is in the inside of puncture outer sleeve (1), and guide rod fixed plate (3) is fixedly installed at the top of puncture inner core guide rod (2), and the guide rod force plate (4) is fixedly installed on the surface of guide rod fixed plate (3);The inner core fixed plate (6) is fixedly installed at the top of anchoring inner core (5), and the inner core force plate (7) is fixedly installed on the surface of inner core fixed plate (6).

2. A tri-axial adjustable pedicle locator as in claim 1, wherein: The puncture outer sleeve (1) includes sleeve body (11), tapered end (12), positioning end (13) and fixed skin hoop (14), and the tapered end (12) is fixedly installed at the head end of sleeve body (11), and the positioning end (13) is fixedly installed at the tail end of sleeve body (11);The fixed skin hoop (14) is fixedly installed on the outside of positioning end (13).

3. A tri-axial adjustable pedicle locator as in claim 1, wherein: The anchoring inner core (5) includes anchoring pipeline (51), positioning seat (52), positioning pipeline (53) and anchoring tooth (54), and the positioning seat (52) is fixedly installed on the inner wall of anchoring pipeline (51), and the positioning pipeline (53) is fixedly installed on the positioning seat (52);The anchoring tooth (54) is fixedly installed at the top of anchoring pipeline (51).

4. A tri-axial adjustable pedicle locator as in claim 2, wherein: The sleeve body (11) in the inside of the puncture outer sleeve (1) adopts a medical plastic pipeline with a length of 115mm, an outer diameter of 3.5mm and an inner diameter of 3.0mm;The tapered end (12) is conical, and the length of tapered end (12) is 10mm, the outer diameter of the farthest end is 3.2mm, and the inner diameter is 3.0mm;The fixed skin hoop (14) adopts an annular rubber hoop, and the fixed skin hoop (14) can be deformed, and the fixed skin hoop (14) can cover the guide rod fixed plate (3) and the inner core fixed plate (6) inside it.

5. A tri-axial adjustable pedicle locator as in claim 3, wherein: The outer diameter of the anchoring pipeline (51) in the inside of the anchoring inner core (5) is 3mm, and the outer diameter of the positioning pipeline (53) is 1mm, and the positioning pipeline (53) adopts 3 groups, and is evenly distributed and installed in the inside of anchoring pipeline (51) by positioning seat (52);The positioning pipeline (53) can be inserted into positioning guide needle with a diameter of 0.8mm and a length of 200mm inward;The anchoring tooth (54) adopts three groups of metal sharp heads.

Images