Spinal minimally invasive rapid positioning puncture apparatus

Abstract

The utility model discloses a kind of spinal column minimally invasive quick positioning puncture apparatus, it is related to medical instrument technical field, to solve the process of current promoting puncture needle movement, it is difficult to ensure that hand does not shake, especially for the technical problem of spinal column oblique puncture, it can affect puncture accuracy, including installation mechanism and the positioning mechanism set on installation mechanism and the puncture mechanism set on positioning mechanism, the slider of the lead screw is equipped with support column, the positioning mechanism includes the positioning plate installed at the end of support column, through the mounting hole being opened in the positioning plate, the inner wall of mounting hole is spherical surface setting, the puncture mechanism includes the positioning ball set in mounting hole. The utility model has the advantages that puncture needle can enter the spinal column of patient stably when being quickly positioned during operation, can effectively prevent hand instability from causing puncture direction deviation to puncture needle, not only improve puncture accuracy when spinal column minimally invasive surgery, but also improve the puncture efficiency.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a minimally invasive rapid positioning and puncture device for the spine. Background Technology

[0002] Minimally invasive spinal surgery utilizes advanced modern medical technology to treat spinal diseases with minimal trauma. It employs equipment such as surgical microscopes, endoscopes, and navigation systems, performing percutaneous punctures or small incisions to precisely locate the lesion, reducing damage to muscles, ligaments, and other tissues, resulting in less intraoperative bleeding. This surgery offers advantages such as rapid postoperative recovery, less pain, and fewer complications, and can effectively treat various common spinal conditions such as lumbar disc herniation, cervical spondylosis, and spinal fractures.

[0003] Minimally invasive spinal surgery is required for conditions such as osteoporotic vertebral compression fractures and vertebral tumors. This involves inserting a needle into the spine and injecting bone cement to reinforce the vertebra. During the puncture, medical staff manually advance the needle to the desired depth. Maintaining a stable hand position during this process is challenging, especially for oblique punctures, as it can affect accuracy. Therefore, we propose a minimally invasive, rapid-positioning spinal puncture device. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a minimally invasive rapid positioning puncture device for the spine. This addresses the technical problem that it is difficult to ensure that the hand does not shake during the current process of advancing the puncture needle, especially for oblique punctures of the spine, which affects the accuracy of the puncture.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a minimally invasive rapid positioning puncture instrument for the spine, comprising an installation mechanism, a positioning mechanism disposed on the installation mechanism, and a puncture mechanism disposed on the positioning mechanism. The installation mechanism includes an adjustment box, an installation plate disposed on the side end of the adjustment box, a lead screw rotatably mounted inside the adjustment box, a rotating handle rotatably mounted at the front end of the adjustment box and connected to the axis of the lead screw, a support column mounted on the slider of the lead screw, the positioning mechanism including a positioning plate mounted on the end of the support column, a through mounting hole opened on the positioning plate, the inner wall of the mounting hole being spherical, and the puncture mechanism including a positioning ball disposed within the mounting hole.

[0006] Preferably, the inner wall of the mounting hole is provided with a movable cavity, and a clamping plate is provided in the movable cavity. The front end of the clamping plate is provided with a spherical surface adapted to the positioning ball, and the front end of the clamping plate is provided with a cone.

[0007] Preferably, the positioning plate is provided with a first mounting cavity and a second mounting cavity. The first mounting cavity is connected to the movable cavity, and the second mounting cavity is connected to the first mounting cavity. A triangular block is provided at the rear end of the clamping plate. A first spring is symmetrically provided at the rear end of the triangular block. The first spring is connected to the inner wall of the first mounting cavity. A pressing rod is installed at the rear end of the triangular block, and the pressing rod extends out of the positioning plate.

[0008] Preferably, a second spring is installed in the second mounting cavity, a buckle is installed at the end of the second spring, the front end of the buckle is set with a bevel, a pull rod is installed at the rear end of the buckle, and the pull rod extends out of the positioning plate.

[0009] Preferably, the positioning ball includes a protrusion, the protrusions are symmetrically arranged on the positioning ball, the protrusions are arranged to protrude from the spherical surface of the positioning ball, a puncture positioning hole is opened at the center of the protrusion at the upper end of the positioning ball, and secondary positioning holes are arrayed on the outer surface of the positioning ball.

[0010] Preferably, a working tube is inserted into the puncture positioning hole, a puncture needle is provided inside the working tube, the tip of the puncture needle extends out of the lower end of the working tube, and a puncture handle is provided at the upper end of the puncture needle.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the design of a positioning ball structure, allows doctors to adjust the position and angle of the positioning ball before surgery based on preoperative imaging planning. The positioning ball is then further stabilized by a clamping plate and a cone, allowing for adjustment of the puncture position and angle. The spherical shape of the positioning ball provides space for multi-angle rotation, facilitating adjustment of various puncture angles. The protruding part limits the positioning ball's position, enabling medical personnel to quickly and accurately position the puncture needle during surgery, ensuring stable entry into the patient's spine. This effectively prevents hand instability from causing puncture direction deviation. In minimally invasive spinal surgery, this not only improves puncture accuracy but also efficiency, solving the problem of difficulty in maintaining hand stability during needle advancement, especially for oblique punctures of the spine, which can affect puncture accuracy.

[0013] 2. This utility model also designs a clamping plate structure, which, through the cooperation of triangular blocks and buckle structures, can quickly complete the clamping and loosening of the positioning ball. The secondary positioning holes on the surface of the cone and the positioning ball can facilitate the angle adjustment of the positioning ball and quickly and firmly fix the positioning ball, ensuring that the puncture needle is stably advanced along the predetermined direction during minimally invasive spinal surgery, thus ensuring the smooth progress of the surgery. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a schematic diagram of the positioning mechanism structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the puncture mechanism of this utility model;

[0017] Figure 4 This is a partial exploded view of the present invention;

[0018] Figure 5 This is a schematic diagram of one usage state of the present invention.

[0019] The following are the labeling instructions in the diagram: 100, Installation mechanism; 101, Adjustment box; 102, Mounting plate; 103, Lead screw; 104, Rotating handle; 105, Support column; 200, Positioning mechanism; 201, Positioning plate; 202, Mounting hole; 203, Movable cavity; 204, Clamping plate; 2041, Cone; 205, Triangular block; 206, First mounting cavity; 207, First spring; 208, Pressing rod; 209, Second mounting cavity; 210, Second spring; 211, Buckle; 212, Pull rod; 300, Puncture mechanism; 301, Positioning ball; 3011, Protrusion; 3012, Puncture positioning hole; 3013, Secondary positioning hole; 302, Working tube; 303, Puncture needle; 304, Puncture handle. Detailed Implementation

[0020] like Figures 1 to 5 As shown, this utility model relates to a minimally invasive rapid positioning and puncture instrument for the spine, including an installation mechanism 100, a positioning mechanism 200 provided on the installation mechanism 100, and a puncture mechanism 300 provided on the positioning mechanism 200. The installation mechanism 100 includes an adjustment box 101, an installation plate 102 provided on the side end of the adjustment box 101, a lead screw 103 rotatably installed inside the adjustment box 101, and a rotating handle 104 rotatably installed at the front end of the adjustment box 101 and connected to the axis of the lead screw 103. A support column 105 is installed on the slider of the lead screw 103. The positioning mechanism 200 includes a positioning plate 201 installed at the end of the support column 105, and a through installation hole 202 is opened on the positioning plate 201. The inner wall of the installation hole 202 is spherical. The puncture mechanism 300 includes a positioning ball 301 disposed in the installation hole 202. This invention allows for adjustment of the puncture position and angle before surgery, and rapid positioning during surgery to ensure that the puncture needle 303 can stably enter the patient's spine. It can effectively prevent hand instability from causing deviation of the puncture direction of the puncture needle 303. This not only improves the accuracy of puncture during minimally invasive spinal surgery, but also improves the efficiency of puncture.

[0021] Specifically, the inner wall of the mounting hole 202 has a movable cavity 203, and a clamping plate 204 is disposed within the movable cavity 203. The front end of the clamping plate 204 is spherically shaped to fit the positioning ball 301, and a cone 2041 is provided at the front end of the clamping plate 204. The spherical shape at the front end of the clamping plate 204 increases the contact area with the positioning ball 301, allowing the clamping plate 204 to firmly fix the positioning ball 301 during the procedure. At the same time, the cone 2041 at the front end of the clamping plate 204 can be inserted into the secondary positioning hole 3013 for secondary positioning, ensuring stability during the puncture procedure.

[0022] Furthermore, the positioning plate 201 is provided with a first mounting cavity 206 and a second mounting cavity 209. The first mounting cavity 206 communicates with the movable cavity 203, and the second mounting cavity 209 communicates with the first mounting cavity 206. A triangular block 205 is provided at the rear end of the clamping plate 204. A first spring 207 is symmetrically provided at the rear end of the triangular block 205. The first spring 207 is connected to the inner wall of the first mounting cavity 206. A pressing rod 208 is installed at the rear end of the triangular block 205, and the pressing rod 208 extends out of the positioning plate 201. When the triangular block 205 is disengaged from the limit of the buckle 211, the first spring 207 can pull the clamping plate 204, thereby moving the two clamping plates 204 away from each other. When the two pressing rods 208 are pressed, the triangular block 205 can be squeezed into the two buckles 211. The buckles 211 can limit and fix the triangular block 205, thereby fixing the position of the clamping plate 204 on the positioning ball 301.

[0023] It is worth noting that a second spring 210 is installed inside the second mounting cavity 209. A latch 211 is installed at the end of the second spring 210. The front end of the latch 211 is beveled, and a pull rod 212 is installed at the rear end of the latch 211. The pull rod 212 extends out of the positioning plate 201. When the pull rod 212 is pulled, the latch 211 can be moved outward, thereby allowing the triangular block 205 to disengage from the latch 211.

[0024] It is worth mentioning that the positioning ball 301 includes a protrusion 3011, which is symmetrically arranged on the positioning ball 301. The protrusion 3011 is a spherical part that protrudes from the positioning ball 301. A puncture positioning hole 3012 is provided at the center of the protrusion 3011 at the upper end of the positioning ball 301. Secondary positioning holes 3013 are arrayed on the outer surface of the positioning ball 301. The spherical design of the positioning ball 301 provides space for multi-angle rotation, facilitating the adjustment of various puncture angles. The protrusion 3011 limits the positioning ball 301, preventing the puncture positioning hole 3012 of the positioning ball 301 from rotating into the mounting hole 202. While the clamping plate 204 positions the positioning ball 301, the cone 2041 can be inserted into the secondary positioning hole 3013 for secondary positioning. During the operation, medical personnel can quickly and accurately position the puncture needle 303, ensuring that the puncture needle 303 can stably enter the patient's spine. This effectively prevents hand instability from causing deviation in the puncture direction of the puncture needle 303.

[0025] It is worth noting that a working tube 302 is inserted into the puncture positioning hole 3012, and a puncture needle 303 is installed inside the working tube 302. The tip of the puncture needle 303 extends out of the lower end of the working tube 302, and a puncture handle 304 is installed at the upper end of the puncture needle 303. Manually pressing the puncture handle 304 allows the puncture needle 303 and the working tube 302 to be inserted into the patient's spine. During the process, the puncture direction is fixed by the positioning ball 301, which can prevent the puncture direction from deviating and improve the puncture accuracy. After puncture, the puncture needle 303 is removed, and bone cement is injected into the spine through the working tube 302.

[0026] Working Principle: This embodiment provides a minimally invasive rapid positioning puncture instrument for the spine. During use, the instrument is fixed to a suitable position on the operating table via the mounting plate 102. When the patient is on the operating table, the spine is positioned below the positioning ball 301. The puncture position is planned according to the preoperative image, and the angle of inclination during puncture is adjusted. When an inclination puncture is required, the two levers 212 are pulled. Under the pull of the first spring 207, the triangular block 205 disengages from the limit of the latch 211, thereby releasing the clamping plate 204 from its clamping and fixing of the positioning ball 301. At this time, the angle of the positioning ball 301 can be adjusted. Because the spherical design of the positioning ball 301 provides space for multi-angle rotation, it facilitates the adjustment of various puncture angles. The protrusion 3011 limits the positioning ball 301, preventing the puncture positioning hole 3012 of the positioning ball 301 from rotating into the mounting hole 202. After the angle is adjusted, the two pressing levers 208 are pressed, causing the triangular block 205 to press against the two latches 211. The two latches 211 limit the triangular block 205, allowing the clamping plate 204 to hold and fix the positioning ball 301. Simultaneously, the cone 2041 can be inserted into the secondary positioning hole 3013 to prevent the positioning ball 301 from rotating. Then, by rotating the handle 104, the lead screw 103 rotates, causing the positioning ball 301 to move along the trajectory of the lead screw 103. This allows adjustment of the puncture position for minimally invasive spinal surgery. After adjustment, medical personnel can perform the puncture procedure. The puncture needle 303 and the working tube 302 pass through the puncture positioning hole 3012, which can quickly position the puncture needle 303. Manually pressing the puncture handle 304 allows the puncture needle 303 and the working tube 302 to be inserted into the patient's spine. During the process, the puncture direction is fixed by the positioning ball 301, which can effectively prevent the puncture needle 303 from deviating due to hand instability, thus improving the accuracy of puncture. After puncture, the puncture needle 303 is pulled out, and bone cement is injected into the spine through the working tube 302.

[0027] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A minimally invasive rapid positioning puncture instrument for the spine, characterized in that, The device includes an installation mechanism (100), a positioning mechanism (200) provided on the installation mechanism (100), and a piercing mechanism (300) provided on the positioning mechanism (200). The installation mechanism (100) includes an adjustment box (101), an installation plate (102) provided on the side end of the adjustment box (101), a lead screw (103) rotatably installed inside the adjustment box (101), a rotating handle (104) rotatably installed at the front end of the adjustment box (101) and connected to the axis of the lead screw (103), a support column (105) installed on the slider of the lead screw (103), the positioning mechanism (200) includes a positioning plate (201) installed at the end of the support column (105), a through installation hole (202) opened on the positioning plate (201), the inner wall of the installation hole (202) is spherical, and the piercing mechanism (300) includes a positioning ball (301) provided in the installation hole (202).

2. The minimally invasive rapid positioning puncture instrument for the spine according to claim 1, characterized in that, The inner wall of the mounting hole (202) is provided with a movable cavity (203), and a clamping plate (204) is provided in the movable cavity (203). The front end of the clamping plate (204) is a spherical surface adapted to the positioning ball (301), and a cone (2041) is provided at the front end of the clamping plate (204).

3. The minimally invasive rapid positioning puncture instrument for the spine according to claim 2, characterized in that, The positioning plate (201) is provided with a first mounting cavity (206) and a second mounting cavity (209). The first mounting cavity (206) is connected to the movable cavity (203), and the second mounting cavity (209) is connected to the first mounting cavity (206). A triangular block (205) is provided at the rear end of the clamping plate (204). A first spring (207) is symmetrically provided at the rear end of the triangular block (205). The first spring (207) is connected to the inner wall of the first mounting cavity (206). A pressing rod (208) is installed at the rear end of the triangular block (205). The pressing rod (208) extends out of the positioning plate (201).

4. The minimally invasive rapid positioning puncture instrument for the spine according to claim 3, characterized in that, A second spring (210) is installed in the second mounting cavity (209). A buckle (211) is installed at the end of the second spring (210). The front end of the buckle (211) is set with a slope. A pull rod (212) is installed at the rear end of the buckle (211). The pull rod (212) extends out of the positioning plate (201).

5. The minimally invasive rapid positioning puncture instrument for the spine according to claim 4, characterized in that, The positioning ball (301) includes a protrusion (3011), which is symmetrically arranged on the positioning ball (301). The protrusion (3011) is spherical and protrudes from the positioning ball (301). A puncture positioning hole (3012) is provided at the center of the protrusion (3011) at the upper end of the positioning ball (301). Secondary positioning holes (3013) are arrayed on the outer surface of the positioning ball (301).

6. The minimally invasive rapid positioning puncture instrument for the spine according to claim 5, characterized in that, A working tube (302) is inserted into the puncture positioning hole (3012), and a puncture needle (303) is provided inside the working tube (302). The tip of the puncture needle (303) extends out of the lower end of the working tube (302), and a puncture handle (304) is provided at the upper end of the puncture needle (303).

Images