Puncture equipment for assisting vertebroplasty

Abstract

The utility model discloses puncture equipment for assisting vertebroplasty, and relates to the technical field of medical instruments, in particular to puncture equipment for assisting vertebroplasty, which comprises a placing plate and a puncture needle. According to the auxiliary puncture equipment for the vertebroplasty, a first rectangular frame, a first servo motor, a first screw rod, a first threaded ring block, a first sliding block, a supporting plate, a second rectangular frame, a second servo motor, a second screw rod, a second threaded ring block and a second sliding block are arranged; the auxiliary puncture equipment for vertebroplasty has the effect of improving the flexibility of adjustment of the puncture position, through cooperation of a first screw rod and a first threaded ring block, the puncture position can be conveniently moved and adjusted in the left-right direction, through cooperation of a second screw rod and a second threaded ring block, the puncture position can be conveniently moved and adjusted in the front-back direction, and the puncture effect is improved. The flexibility of adjusting the puncture position is improved, and the purpose of improving the practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a puncture device for assisting vertebroplasty. Background Art

[0002] In recent years, percutaneous puncture and injection of fillers into the vertebral body have been used for vertebral reinforcement (called vertebroplasty), or balloons or other mechanical devices have been used to expand the compressed vertebral body to partially or completely correct the kyphosis deformity, and then fillers have been injected for vertebral reinforcement. This can achieve the purpose of stabilizing fractures, restoring vertebral mechanical strength and relieving pain.

[0003] The puncture device for assisting vertebroplasty in the prior art has poor flexibility in adjusting the position of the puncture needle before puncture, which affects the puncture work. In addition, the existing puncture device for assisting vertebroplasty needs to replace the puncture needle after use to avoid cross infection caused by multiple use of the same puncture needle, and it is inconvenient to disassemble and replace the puncture needle. A puncture device for assisting vertebroplasty is now invented to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a puncture device for assisting vertebroplasty, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a puncture device for auxiliary vertebroplasty, including a placement plate and a puncture needle, the bottom of the placement plate is respectively installed with support legs and a first rectangular frame, a first servo motor is installed on one side of the first rectangular frame, the output end of the first servo motor is installed with a first screw rod with the same center as the axis of the output end of the first servo motor, the outer surface of the first screw rod is transmission-connected with a first threaded ring block, the rear of the first threaded ring block is installed with a first slider, the top of the first threaded ring block is installed with a support plate, the inner top wall of the support plate is installed with a second rectangular frame, the front of the second rectangular frame is installed with a second servo motor, and the second servo motor is installed with a A second screw with the same center as the axis of the output end of the second servo motor is installed at the output end, and a second threaded ring block is transmission-connected to the outer surface of the second screw, a second slider is installed on one side of the second threaded ring block, a matching plate is installed on the top of the second threaded ring block, an electric hydraulic push rod is installed on the inner top wall of the matching plate, a cavity block is installed on the movable end of the electric hydraulic push rod, a positioning groove with the left and right direction as the depth direction and the front and back direction as the length direction is opened inside the cavity block, a limiting spring is installed inside the positioning groove, a positioning slider is installed on the end of the limiting spring, a limiting rod is installed on the end of the positioning slider, a pull plate is installed on the end of the limiting rod, and a positioning block is installed on the top of the puncture needle.

[0008] Optionally, the inner rear wall of the first rectangular frame is provided with a first slide groove having a front-to-rear direction as a depth direction and a left-to-right direction as a length direction, the end of the first slider is located inside the first slide groove, and the first slider can slide along the length direction of the first slide groove.

[0009] Optionally, the inner wall of the second rectangular frame is provided with a second slide groove having the left-right direction as the depth direction and the front-back direction as the length direction, the end of the second slider is located inside the second slide groove, and the second slider can slide along the length direction of the second slide groove.

[0010] Optionally, the first screw is rotatably connected to the inner wall of the first rectangular frame via a bearing, and the second screw is rotatably connected to the inner wall of the second rectangular frame via a bearing.

[0011] Optionally, the first servo motor, the second servo motor and the electric hydraulic push rod are all electrically connected to an external power source via wires, and the height of the supporting legs is greater than the height of the first rectangular frame.

[0012] Optionally, a positioning groove with the vertical direction as the depth direction is formed at the bottom of the cavity block, and the end of the positioning block is inserted into the interior of the positioning groove.

[0013] Optionally, the front and rear of the positioning block are provided with limiting grooves with the front-to-rear direction as the depth direction, and the end of the limiting rod away from the pull plate is inserted into the limiting groove, and the pull plate is located outside the cavity block.

[0014] Optionally, the end of the positioning slider is located inside the positioning slot, and the positioning slider can slide along the length direction of the positioning slot, and the position of the puncture needle corresponds to the position of the placement plate.

[0015] (III) Beneficial effects

[0016] The utility model provides a puncture device for assisting vertebroplasty, which has the following beneficial effects:

[0017] 1. The puncture device for assisting vertebroplasty has the effect of improving the flexibility of adjusting the puncture position through the arrangement of the first rectangular frame, the first servo motor, the first screw, the first threaded ring block, the first slider, the support plate, the second rectangular frame, the second servo motor, the second screw, the second threaded ring block and the second slider. The cooperation of the first screw and the first threaded ring block facilitates the movement and adjustment of the puncture position in the left-right direction, and the cooperation of the second screw and the second threaded ring block facilitates the movement and adjustment of the puncture position in the front-back direction, thereby improving the flexibility of adjusting the puncture position and achieving the purpose of improving practicality.

[0018] 2. The puncture device for assisting vertebroplasty has the effect of facilitating the replacement of the puncture needle through the arrangement of the cavity block, the limit spring, the positioning slider, the limit rod, the pull plate and the positioning block. The positioning block plays a role in positioning and installation, and the limit rod plays a role in limiting, which facilitates the rapid installation of the puncture needle, and vice versa, facilitates the rapid disassembly of the puncture needle, thereby achieving the purpose of improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 3 It is a schematic diagram of the structure of the side cross-section of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the utility model in a top view;

[0023] Figure 5 For this utility model Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0024] In the figure: 1. placement plate; 2. puncture needle; 3. support leg; 4. first rectangular frame; 5. first servo motor; 6. first screw; 7. first threaded ring block; 8. first slider; 9. support plate; 10. second rectangular frame; 11. second servo motor; 12. second screw; 13. second threaded ring block; 14. second slider; 15. matching plate; 16. electric hydraulic push rod; 17. cavity block; 18. limit spring; 19. positioning slider; 20. limit rod; 21. pull plate; 22. positioning block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] See also Figures 1 to 4 The utility model provides a technical solution: a puncture device for auxiliary vertebroplasty, including a placement plate 1 and a puncture needle 2, the bottom of the placement plate 1 is respectively installed with a support leg 3 and a first rectangular frame 4, the inner rear wall of the first rectangular frame 4 is provided with a first slide groove with a front-to-back direction as a depth direction and a left-to-right direction as a length direction, the end of the first sliding block 8 is located inside the first slide groove, the first sliding block 8 can slide along the length direction of the first slide groove, a first servo motor 5 is installed on one side of the first rectangular frame 4, the first servo motor 5, the second servo motor 11 and the electric hydraulic push rod 16 are all electrically connected to an external power supply through a wire, the height of the support leg 3 is greater than the height of the first rectangular frame 4, the output end of the first servo motor 5 is installed with a first screw 6 with the same center as the axis of the output end of the first servo motor 5, the first screw 6 is rotatably connected to the inner wall of the first rectangular frame 4 through a bearing, and the second screw 12 is rotatably connected to the inner wall of the second rectangular frame 10 through a bearing. The outer surface of the first screw rod 6 is transmission-connected with the first threaded ring block 7, the back of the first threaded ring block 7 is installed with the first slider 8, the top of the first threaded ring block 7 is installed with a support plate 9, the inner top wall of the support plate 9 is installed with a second rectangular frame 10, the inner wall of the second rectangular frame 10 is provided with a second slide groove with the left-right direction as the depth direction and the front-back direction as the length direction, the end of the second slider 14 is located inside the second slide groove, the second slider 14 can slide along the length direction of the second slide groove, the front of the second rectangular frame 10 is installed with a second servo motor 11, the output end of the second servo motor 11 is installed with a second screw rod 12 with the same center as the axis of the output end of the second servo motor 11, the outer surface of the second screw rod 12 is transmission-connected with the second threaded ring block 13, the second slider 14 is installed on one side of the second threaded ring block 13, the top of the second threaded ring block 13 is installed with a matching plate 15, and the inner top wall of the matching plate 15 is installed with an electric hydraulic push rod 16.

[0028] When in use, during puncture, the anesthetized patient is placed on the placement plate 1. When adjusting the puncture position of the puncture needle 2, the first servo motor 5 drives the first screw 6 to rotate, and the first screw 6 is transmission-connected with the first threaded ring block 7, and the end of the first sliding block 8 is located inside the first slide groove, so that the first threaded ring block 7 drives the first sliding block 8, the supporting plate 9 and the puncture needle 2 to move in the left and right directions, so that the first sliding block 8 moves along the length direction of the first slide groove, and the second servo motor 11 drives the second screw 12 to rotate, and the second screw 12 is transmission-connected with the second threaded ring block 13, and the end of the second sliding block 14 is located inside the second slide groove, so that the second threaded ring block 13 drives the second sliding block 14 and the puncture needle 2 to move in the left and right directions, so that the second sliding block 14 moves along the length direction of the second slide groove, so as to facilitate and flexibly adjust the puncture position of the puncture needle 2, and drive the puncture needle 2 to move up and down by extending or retracting the movable end of the electric hydraulic push rod 16, thereby improving practicality.

[0029] Example 2

[0030] See also Figures 1 to 5 The utility model provides a technical solution: a puncture device for assisting vertebroplasty, a cavity block 17 is installed at the movable end of an electric hydraulic push rod 16, a positioning groove with the up-down direction as the depth direction is opened at the bottom of the cavity block 17, the end of the positioning block 22 is inserted into the interior of the positioning groove, a positioning slide groove with the left-right direction as the depth direction and the front-back direction as the length direction is opened inside the cavity block 17, a limit spring 18 is installed inside the positioning slide groove, a positioning slider 19 is installed at the end of the limit spring 18, and the positioning slider 1 9 is located inside the positioning slide, and the positioning slider 19 can slide along the length direction of the positioning slide. The position of the puncture needle 2 corresponds to the position of the placement plate 1. A limiting rod 20 is installed at the end of the positioning slider 19, and a pull plate 21 is installed at the end of the limiting rod 20. A positioning block 22 is installed on the top of the puncture needle 2. The front and back of the positioning block 22 are both provided with limiting grooves with the front-to-back direction as the depth direction. The end of the limiting rod 20 away from the pull plate 21 is inserted into the inside of the limiting groove, and the pull plate 21 is located outside the cavity block 17.

[0031] When in use, when replacing the puncture needle 2, the pull plate 21 is pulled, so that the pull plate 21 drives the limit rod 20 and the positioning slide block 19 to move, so that the limit spring 18 is forced to contract, and the positioning slide block 19 is positioned and moved along the length direction of the positioning slide groove, so that the end of the limit rod 20 leaves the limit groove, and then the puncture needle 2 is moved downward, so that the positioning block 22 leaves the positioning groove, which is convenient for the removal of the puncture needle 2. When replacing a new puncture needle 2, the puncture needle 2 is moved so that the end of the positioning block 22 is inserted into the interior of the positioning groove. When the top of the positioning block 22 reaches the end of the positioning groove, the limit groove is aligned with the limit rod 20, and the pull plate 21 is released. Through the elastic tension of the limit spring 18, the end of the limit rod 20 is inserted into the interior of the limit groove, which is convenient for limiting the position of the positioning block 22, and the puncture needle 2 is convenient for completing the installation, thereby improving practicality.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A puncture device for assisting vertebroplasty, comprising a placement plate and a puncture needle, characterized in that: The bottom of the placement plate is respectively equipped with support legs and a first rectangular frame, a first servo motor is installed on one side of the first rectangular frame, an output end of the first servo motor is equipped with a first screw rod which is co-centered with the axis of the output end of the first servo motor, a first threaded ring block is transmission-connected to the outer surface of the first screw rod, a first slider is installed behind the first threaded ring block, a support plate is installed on the top of the first threaded ring block, a second rectangular frame is installed on the inner top wall of the support plate, a second servo motor is installed in front of the second rectangular frame, and a first screw rod which is co-centered with the axis of the output end of the second servo motor is installed on the output end of the second servo motor. Two screws, the outer surface of the second screw is transmission-connected with a second threaded ring block, a second slider is installed on one side of the second threaded ring block, a matching plate is installed on the top of the second threaded ring block, an electric hydraulic push rod is installed on the inner top wall of the matching plate, a cavity block is installed on the movable end of the electric hydraulic push rod, a positioning groove with the left and right direction as the depth direction and the front and back direction as the length direction is opened inside the cavity block, a limiting spring is installed inside the positioning groove, a positioning slider is installed on the end of the limiting spring, a limiting rod is installed on the end of the positioning slider, a pull plate is installed on the end of the limiting rod, and a positioning block is installed on the top of the puncture needle.

2. A puncture device for assisting vertebroplasty according to claim 1, characterized in that: The inner rear wall of the first rectangular frame is provided with a first slide groove with the front-to-rear direction as the depth direction and the left-to-right direction as the length direction. The end of the first sliding block is located inside the first slide groove, and the first sliding block can slide along the length direction of the first slide groove.

3. The puncture device for assisting vertebroplasty according to claim 1, characterized in that: The inner wall of the second rectangular frame is provided with a second slide groove with the left-right direction as the depth direction and the front-back direction as the length direction. The end of the second slider is located inside the second slide groove, and the second slider can slide along the length direction of the second slide groove.

4. The puncture device for assisting vertebroplasty according to claim 1, characterized in that: The first screw is rotatably connected to the inner wall of the first rectangular frame through a bearing, and the second screw is rotatably connected to the inner wall of the second rectangular frame through a bearing.

5. The puncture device for assisting vertebroplasty according to claim 1, characterized in that: The first servo motor, the second servo motor and the electric hydraulic push rod are all electrically connected to an external power source through wires, and the height of the supporting legs is greater than the height of the first rectangular frame.

6. The puncture device for assisting vertebroplasty according to claim 1, characterized in that: A positioning groove with the up-down direction as the depth direction is opened at the bottom of the cavity block, and the end of the positioning block is inserted into the interior of the positioning groove.

7. The puncture device for assisting vertebroplasty according to claim 1, characterized in that: The front and rear of the positioning block are both provided with limiting grooves with the front-rear direction as the depth direction, and the end of the limiting rod away from the pull plate is inserted into the limiting groove, and the pull plate is located outside the cavity block.

8. The puncture device for assisting vertebroplasty according to claim 1, characterized in that: The end of the positioning slide block is located inside the positioning slide groove, and the positioning slide block can slide along the length direction of the positioning slide groove, and the position of the puncture needle corresponds to the position of the placement plate.

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