Neurosurgical positioning and puncture device
By designing a head fixation base and puncture positioning structure, combined with worm gear transmission and limiting components, the problem of difficulty in fine-tuning the angle of the puncture needle was solved, enabling rapid and accurate positioning of the puncture needle and improving the accuracy and efficiency of neurosurgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PEOPLES HOSPITAL OF LUOJIANG DISTRICT DEYANG CITY
- Filing Date
- 2025-03-03
- Publication Date
- 2026-08-04
AI Technical Summary
In the use of existing neurosurgical positioning puncture devices, the angle of the puncture needle is difficult to fine-tune, causing the puncture needle to deviate in position and making it impossible to quickly and accurately locate the needle.
A neurosurgical positioning and puncture device was designed, which includes a head fixation base and a puncture positioning structure. The patient's head is fixed by a clamping component, and the position and angle of the puncture needle are precisely adjusted by an adjustment component and a limiting component. Fine-tuning is achieved by combining a worm gear transmission to ensure accurate positioning of the puncture needle.
It enables rapid and precise positioning of the puncture needle, avoiding puncture position deviation caused by head movement, and improving the accuracy and efficiency of the surgery.
Smart Images
Figure CN224584820U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, and in particular relates to a neurosurgical positioning and puncture device. Background Technology
[0002] Ventricular puncture and drainage, also known as cistern puncture and drainage, is a general neurosurgical technique. Ventricular drainage tube surgery is a new method of postoperative drainage in neurosurgery. It is an emergency measure to reduce intracranial pressure by inserting a drainage tube into the patient's skull.
[0003] Chinese patent announcement number CN210494188U discloses a neurosurgical positioning puncture device, including a connecting ring. The outer surface of the connecting ring is equipped with a positioning device and an adjustment device. The outer surface of the adjustment device is equipped with a clamping device. In use, the positioning ring is pulled outward, and then the screw ring is rotated to clamp the inner surface of the positioning rod onto the patient's head. Then, the second positioning nut is adjusted, and then the adjustment device is rotated to drive the second sleeve to slide on the outer surface of the connecting ring. After the adjustment is appropriate, the second positioning nut is positioned. Then, the position of the guide ring is adjusted by adjusting the third positioning nut. Finally, the fourth positioning nut is adjusted. At the same time, the inner surface of the puncture needle positioning shaft fixing plate and the clamping plate are fixed, and the third sleeve is positioned in the appropriate position. Finally, the puncture operation is performed accurately. This effectively solves the problems of difficult needle insertion and difficulty in controlling the puncture direction in previous cranial puncture procedures. The structure is simple and the use is reliable and convenient.
[0004] However, this device has the following drawbacks during use: Although it can slide the third sleeve along the surface of the guide ring to move the clamping device as a whole, the angle of the puncture needle changes significantly when the clamping device slides along the surface of the guide ring, making it impossible to fine-tune the puncture needle and quickly adjust it to the appropriate position. To address these drawbacks, we propose a neurosurgical positioning puncture device. Utility Model Content
[0005] The purpose of this invention is to provide a neurosurgical positioning and puncture device to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, the specific technical solution of this utility model is as follows: A neurosurgical positioning puncture device, comprising:
[0007] A head fixing base, the head fixing base including a base plate and a clamping assembly disposed on the upper surface of the base plate for fixing the head;
[0008] The puncture positioning structure includes a first fixing plate and a second fixing plate fixedly installed on the upper surface of a base plate, an arc-shaped guide plate rotatably installed between the first fixing plate and the second fixing plate, a puncture needle guide assembly disposed on the surface of the arc-shaped guide plate, and an adjustment assembly disposed on the surface of the second fixing plate.
[0009] The puncture needle guide assembly includes a slide plate, a fixing component disposed on the surface of the slide plate, a mounting plate fixedly mounted on the front of the slide plate by bolts, a rotating shaft rotatably mounted on the front of the mounting plate, a guide cylinder fixedly mounted on the front of the rotating shaft, and a limiting component disposed on the surface of the mounting plate.
[0010] The limiting components include a limiting plate fixedly mounted on the surface of the rotating shaft, a connecting plate fixedly mounted on the front of the mounting plate, a plug inserted into the surface of the connecting plate, a limiting block fixedly mounted at the lower end of the plug, and limiting grooves arranged in a circumferential array on the surface of the limiting plate.
[0011] Preferably, the surface of the plug is fitted with a tension spring that can drive the limiting block to insert into the inner wall of the limiting groove.
[0012] Preferably, the fixing component includes a threaded post fixedly installed on the upper surface of the slide plate, a washer sleeved on the surface of the threaded post, a nut threadedly connected to the surface of the threaded post, and a track groove formed on the surface of the arc-shaped guide plate.
[0013] Preferably, the track groove allows threaded posts to pass through.
[0014] Preferably, the clamping assembly includes two support plates symmetrically fixedly mounted on the upper surface of the base plate, a locking bolt threaded to the surface of the support plates, and a clamping plate rotatably mounted on the surface of the locking bolt.
[0015] Preferably, the adjusting assembly includes a worm gear and a worm shaft that are rotatably mounted on the left side of the second fixed plate, and the worm gear and the worm shaft engage in transmission.
[0016] Preferably, the right side of the worm gear passes through the second fixed plate and is fixedly connected to the left side of the arc-shaped guide plate.
[0017] The neurosurgical localization and puncture device of this invention has the following advantages:
[0018] 1. This neurosurgical positioning and puncture device, by setting a puncture positioning structure, after placing the patient's head on the base plate, slides the threaded column along the inner wall of the track groove, thereby allowing the guide cylinder to move left and right above the patient's head. The adjustment component can drive the arc-shaped guide plate to rotate along the axis of the worm gear, thereby initially determining the position of the guide cylinder. Then, the limiting component can drive the guide cylinder to rotate, thereby fine-tuning the angle of the guide cylinder. Finally, the puncture needle is inserted along the inner wall of the guide cylinder, thus facilitating and quickly guiding and positioning the puncture needle.
[0019] 2. This neurosurgical positioning puncture device, by setting a head fixation seat, allows the patient's head to be placed on the base plate. At this time, the locking bolts can be turned to drive the clamps to clamp the patient's head on both sides, thereby fixing the patient's head and preventing the problem of puncture position displacement caused by the movement of the patient's head. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a three-dimensional structural diagram of the fixing component of this utility model;
[0023] Figure 3 This is a three-dimensional structural diagram of the limiting component of this utility model;
[0024] Figure 4 This is a side sectional view of the arc-shaped guide plate of this utility model.
[0025] The markings in the diagram are as follows: 10 Base plate, 20 First fixing plate, 21 Second fixing plate, 22 Arc-shaped guide plate, 30 Slide plate, 31 Mounting plate, 32 Rotating shaft, 33 Guide cylinder, 40 Limiting plate, 41 Connecting plate, 42 Bolt, 43 Limiting block, 44 Limiting groove, 45 Tension spring, 50 Threaded post, 51 Washer, 52 Nut, 53 Track groove, 60 Support plate, 61 Locking bolt, 62 Clamping plate, 70 Worm gear, 71 Worm. Detailed Implementation
[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0030] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0031] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a neurosurgical positioning and puncture device.
[0032] like Figure 1-4As shown, the present invention provides a neurosurgical positioning and puncture device, comprising: a head fixation base and a puncture positioning structure.
[0033] The head fixing base includes a base plate 10 and a clamping assembly disposed on the upper surface of the base plate 10 for fixing the head. The clamping assembly includes two support plates 60 that are symmetrically fixedly mounted on the upper surface of the base plate 10, a locking bolt 61 that is threadedly connected to the surface of the support plate 60, and a clamping plate 62 that is rotatably mounted on the surface of the locking bolt 61.
[0034] After placing the patient's head on the base plate 10, the locking bolt 61 can be turned to drive the clamp 62 to clamp the patient's head on both sides, thereby fixing the patient's head and preventing the puncture position from shifting due to the patient's head movement.
[0035] The puncture positioning structure includes a first fixing plate 20 and a second fixing plate 21 fixedly installed on the upper surface of the base plate 10, an arc-shaped guide plate 22 rotatably installed between the first fixing plate 20 and the second fixing plate 21, a puncture needle guide assembly disposed on the surface of the arc-shaped guide plate 22, and an adjustment assembly disposed on the surface of the second fixing plate 21.
[0036] The puncture needle guide assembly includes a slide plate 30, a fixing component disposed on the surface of the slide plate 30, a mounting plate 31 fixedly mounted on the front of the slide plate 30 by bolts, a rotating shaft 32 rotatably mounted on the front of the mounting plate 31, a guide cylinder 33 fixedly mounted on the front of the rotating shaft 32, and a limiting component disposed on the surface of the mounting plate 31. The puncture needle can be inserted into the inner wall of the guide cylinder 33 to guide the puncture needle.
[0037] The fixing components include a threaded post 50 fixedly mounted on the upper surface of the slide plate 30, a washer 51 sleeved on the surface of the threaded post 50, a nut 52 threadedly connected to the surface of the threaded post 50, and a track groove 53 formed on the surface of the arc-shaped guide plate 22. The track groove 53 allows the threaded post 50 to pass through. The threaded post 50 slides along the inner wall of the track groove 53, thereby driving the slide plate 30 to move synchronously. At this time, the guide cylinder 33 can move left and right above the patient's head. When the guide cylinder 33 moves to the appropriate position, tightening the nut 52 can fix the slide plate 30 on the arc-shaped guide plate 22.
[0038] The adjustment assembly includes a worm gear 70 and a worm 71, which are rotatably mounted on the left side of the second fixed plate 21. The worm gear 70 and the worm 71 mesh and drive each other. The right side of the worm gear 70 passes through the second fixed plate 21 and is fixedly connected to the left side of the arc-shaped guide plate 22. Rotating the worm 71, the worm gear 70 and the worm 71 mesh and drive each other, thereby driving the arc-shaped guide plate 22 to rotate. At this time, the guide cylinder 33 will rotate synchronously with the arc-shaped guide plate 22. The self-locking principle of the worm gear 70 and the worm 71 can prevent the arc-shaped guide plate 22 from rotating under force. The guide cylinder 33 can move left and right above the patient's head. With the help of the adjustment assembly, the arc-shaped guide plate 22 can be driven to rotate along the axis of the worm gear 70, thereby initially determining the position of the guide cylinder 33.
[0039] The limiting components include a limiting plate 40 fixedly mounted on the surface of the rotating shaft 32, a connecting plate 41 fixedly mounted on the front of the mounting plate 31, a plug 42 inserted on the surface of the connecting plate 41, a limiting block 43 fixedly mounted on the lower end of the plug 42, and limiting grooves 44 arranged in a circumferential array on the surface of the limiting plate 40. A tension spring 45 is sleeved on the surface of the plug 42 to drive the limiting block 43 to insert into the inner wall of the limiting groove 44.
[0040] After the position of the guide cylinder 33 is initially determined, pulling the plunger 42 can drive the limiting block 43 to disengage from the limiting groove 44. After the limiting block 43 disengages from the limiting groove 44, the guide cylinder 33 can be rotated to drive the rotating shaft 32 to rotate, thereby fine-tuning the angle of the guide cylinder 33. After the angle is adjusted, loosening the plunger 42 and using the spring force of the tension spring 45 to reset can drive the limiting block 43 to insert into the limiting groove 44, thereby fixing the rotating shaft 32 and the guide cylinder 33. Then, the puncture needle is inserted along the inner wall of the guide cylinder 33, which can facilitate and quickly guide and position the puncture needle.
[0041] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A neurosurgical positioning and puncture device, characterized by, include: A head fixing seat, the head fixing seat includes a base plate (10) and a clamping assembly disposed on the upper surface of the base plate (10) for fixing the head; The puncture positioning structure includes a first fixing plate (20) and a second fixing plate (21) fixedly installed on the upper surface of the base plate (10), an arc-shaped guide plate (22) rotatably installed between the first fixing plate (20) and the second fixing plate (21), a puncture needle guide assembly disposed on the surface of the arc-shaped guide plate (22), and an adjustment assembly disposed on the surface of the second fixing plate (21). The puncture needle guide assembly includes a slide plate (30), a fixing component disposed on the surface of the slide plate (30), a mounting plate (31) fixedly mounted on the front side of the slide plate (30) by bolts, a rotating shaft (32) rotatably mounted on the front side of the mounting plate (31), a guide cylinder (33) fixedly mounted on the front side of the rotating shaft (32), and a limiting component disposed on the surface of the mounting plate (31). The limiting components include a limiting plate (40) fixedly mounted on the surface of the rotating shaft (32), a connecting plate (41) fixedly mounted on the front of the mounting plate (31), a plug (42) inserted into the surface of the connecting plate (41), a limiting block (43) fixedly mounted on the lower end of the plug (42), and limiting grooves (44) arranged in a circumferential array on the surface of the limiting plate (40).
2. The neurosurgical positioning and puncture device according to claim 1, characterized in that: The surface of the plug (42) is fitted with a tension spring (45) that can drive the limiting block (43) to insert into the inner wall of the limiting groove (44).
3. The neurosurgical positioning and puncture device according to claim 1, characterized in that: The fixing components include a threaded post (50) fixedly mounted on the upper surface of the slide plate (30), a washer (51) sleeved on the surface of the threaded post (50), a nut (52) threadedly connected to the surface of the threaded post (50), and a track groove (53) opened on the surface of the arc-shaped guide plate (22).
4. The neurosurgical positioning and puncture device according to claim 3, characterized in that: The track groove (53) allows the threaded post (50) to pass through.
5. The neurosurgical positioning and puncture device according to claim 1, characterized in that: The clamping assembly includes two support plates (60) that are symmetrically fixed on the upper surface of the base plate (10), a locking bolt (61) threaded to the surface of the support plate (60), and a clamping plate (62) rotatably mounted on the surface of the locking bolt (61).
6. The neurosurgical positioning and puncture device according to claim 1, characterized in that: The adjustment assembly includes a worm wheel (70) and a worm (71) that are rotatably mounted on the left side of the second fixed plate (21), and the worm wheel (70) and the worm (71) engage in transmission.
7. The neurosurgical positioning and puncture device according to claim 6, characterized in that: The right side of the worm gear (70) passes through the second fixed plate (21) and is fixedly connected to the left side of the arc-shaped guide plate (22).