Semi-automatic depth finder for spinal surgery

Abstract

The utility model relates to the technical field of spinal operation tools, in particular to a spinal operation semi-automatic sounding device which comprises an outer sleeve used for wrapping and protecting an internal measuring mechanism, a sounding hook rod is installed in the outer sleeve, a hook head is installed at one end of the sounding hook rod, and a plurality of locking rings are arranged on the sounding hook rod. A scale plate is installed at the other end of the depth measuring hook rod, and a buckle mechanism is installed at the position, close to the depth measuring hook rod, of the inner wall of the outer sleeve. According to the semi-automatic sounding device for the spinal surgery, the depth of a nail channel can be accurately measured through the cooperation of the sounding hook rod and the locking ring and the accurate scales of the scale plate. And the locking ring can lock the position of the sounding hook rod in the measurement process, so that the measurement stability is ensured, and the measurement accuracy is greatly improved. According to a traditional screw length selection method, an operator needs to use a ball probe for multiple times for probing, and selection is carried out according to experience. The device integrates probing and measuring, and the design of the hook head facilitates probing of the nail channel.

Description

TECHNICAL FIELD

[0001] The utility model relates to a spine operation tool technical field, concretely, relate to a spine operation semi -automatic depth finder. BACKGROUND

[0002] As an important field of orthopedic medicine, spine surgery focuses on the diagnosis, treatment, and prevention of diseases related to the spine and its associated structures. The spine structure is complex, including vertebral body, intervertebral disc, ligament, nerve root and spinal cord, etc. Any damage or disease can have a serious impact on the patient's daily life. Therefore, spine surgery requires high precision and safety.

[0003] In spine surgery, especially the operation involving cervical and thoracolumbar vertebrae, screw implantation is a common operation. Accurate placement of screws is crucial for the stability of the operation and the postoperative recovery of patients. However, the traditional screw length selection method mainly relies on the experience of the surgeon and the ball probe comparison, which has many shortcomings.

[0004] Firstly, the traditional screw length selection process is tedious and time-consuming. The surgeon needs to use the ball probe to probe the nail channel and select the appropriate screw length according to the probe results and their own experience. This process not only needs to be tried and adjusted many times, but also is easily affected by human factors, resulting in measurement errors.

[0005] Secondly, due to the complexity of the spine structure and the existence of individual differences of patients, the traditional screw length selection method often cannot adapt to the anatomical characteristics of different patients and surgical sites. This further increases the risk and uncertainty of the operation, which may cause serious complications such as pedicle wall penetration and nerve damage. INVENTION CONTENTS

[0006] The utility model aims at providing a spine operation semi -automatic depth finder to solve the problem of the traditional screw length selection method mainly relying on the experience of the surgeon and the ball probe comparison, which has many shortcomings.

[0007] To achieve the above purpose, the utility model provides a spine operation semi -automatic depth finder, including the outer sleeve, be used for wrapping and protecting the internal measuring mechanism, install the depth hook rod in the outer sleeve, the one end of depth hook rod installs the hook head, be used for the probe to the nail channel, be provided with a plurality of locking ring on the depth hook rod, be used for locking the position of depth hook rod in the measuring process, the other end of depth hook rod installs the scale board, be used for showing the measuring depth, the inner wall of outer sleeve is installed with buckle mechanism near depth hook rod, be used for the release locking ring after measuring, so as to carry out the next measurement.

[0008] As preferred, the hook head adopts a hook structure, facilitating the exploration of the four walls after the nail channel is implanted, and without the need to change surgical instruments.

[0009] As preferred, the locking ring is in a ring structure, arranged at equal intervals on the outer wall of the outer sleeve, and when the depth measuring hook rod is pushed inward, the locking ring is locked in position through the buckle mechanism, ensuring the accuracy of the measurement.

[0010] As preferred, the scale plate is provided with scale lines for more accurate reading of the measured depth.

[0011] As preferred, the outer sleeve is provided with a hidden compartment near the buckle mechanism, and the outer wall of the hidden compartment is provided with an inspection cover for storing or repairing the internal parts of the device.

[0012] As preferred, the buckle mechanism includes a locking rod, one end of the locking rod passes through the outer wall of the hidden compartment and is provided with a locking buckle, the locking buckle is clamped between two adjacent locking rings, and the locking rod is connected with a pressing rod through a flap rod on one side, and the outer end of the pressing rod is provided with a button.

[0013] As preferred, the end of the locking rod away from the locking buckle is provided with a locking spring, one end of the locking spring abuts against the inner wall of the hidden compartment, and the other end abuts against a stop ring provided on the outer wall of the locking rod.

[0014] As preferred, the middle part of the flap rod is rotationally connected to the inner wall of the hidden compartment through a flap shaft, and the two ends of the flap rod are each provided with a sliding groove, the top end of the pressing rod is slidably connected with one sliding groove through a first clamping column, the locking rod is provided with a connecting piece on one side, the connecting piece is slidably connected with the other sliding groove through a second clamping column, and the hidden compartment is provided with a limiting groove near the end of the pressing rod, and the pressing rod is insertedly connected with the limiting groove.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] In the spinal surgery semi-automatic depth measuring device, through the cooperation of the depth measuring hook rod and the locking ring, and the accurate scale of the scale plate, the utility model can realize accurate measurement of the depth of the nail channel. The locking ring can lock the position of the depth measuring hook rod during measurement, ensuring the stability of the measurement, thereby greatly improving the accuracy of the measurement.

[0017] The traditional screw length selection method needs the surgeon to use the ball probe multiple times for exploration and select according to experience. The utility model integrates exploration and measurement, the hook head is designed to facilitate the exploration of the nail channel, without the need to change surgical instruments, greatly simplifying the operation process and saving the operation time.

[0018] The depth measuring device is reasonable in design, can be adjusted according to different patients and operation sites, and better adapts to the complexity of the spine structure and individual differences of patients. This reduces the operation risk, improves the accuracy and safety of the operation. The design of the buckle mechanism enables the locking ring to be easily unlocked after measurement, and the next measurement is performed. At the same time, the hidden bin and the maintenance cover are arranged to facilitate storage and maintenance of the internal parts of the device, and the usability and maintainability of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is an internal structure schematic view of the utility model;

[0021] Figure 3 It is the utility model Figure 2 It is a local enlarged structure schematic view of A in the utility model;

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

[0023] The meanings of various reference numerals in the drawing are as follows:

[0024] 1, outer sleeve; 2, depth hook rod; 3, hook head; 4, locking ring; 5, scale plate; 6, scale line; 7, buckle mechanism; 71, button; 72, pressing rod; 73, sliding groove; 74, first clamping column; 75, rocker shaft; 76, rocker lever; 77, second clamping column; 78, locking rod; 79, locking buckle; 710, connecting piece; 711, blocking ring; 712, locking spring; 8, maintenance cover; 9, hidden bin. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] The utility model provides a kind of semi-automatic depth measuring device for spine surgery, such as Figures 1-4As shown, including the outer sleeve 1, for wrapping and protecting the internal measuring mechanism, the depth hook rod 2 is installed in the outer sleeve 1, one end of the depth hook rod 2 is provided with a hook head 3, which is used to explore the nail channel, a plurality of locking rings 4 are arranged on the depth hook rod 2, which is used to lock the position of the depth hook rod 2 during measurement, the other end of the depth hook rod 2 is provided with a scale plate 5, which is used to display the measured depth, the inner wall of the outer sleeve 1 is provided with a buckle mechanism 7 near the depth hook rod 2, which is used to release the locking ring 4 after the measurement is completed, so as to facilitate the next measurement.

[0027] In this embodiment, the hook head 3 adopts a hook structure, which is convenient for exploring the four walls of the nail channel after implantation, and does not need to replace the surgical instrument.

[0028] Specifically, the locking ring 4 is in a ring structure, which is arranged on the outer wall of the outer sleeve 1 at equal intervals, when the depth hook rod 2 is pushed inward, the locking ring 4 is locked by the buckle mechanism 7, which ensures the accuracy of measurement.

[0029] Further, the scale plate 5 is provided with a scale line 6, which is used to more accurately read the measured depth.

[0030] Further, the outer sleeve 1 is provided with a hidden warehouse 9 near the buckle mechanism 7, the outer wall of the hidden warehouse 9 is provided with an inspection cover 8, which is used to store or repair the internal parts of the device.

[0031] Further, the buckle mechanism 7 includes a locking rod 78, one end of the locking rod 78 penetrates through the outer wall of the hidden warehouse 9 and is provided with a locking buckle 79, the locking buckle 79 is clamped between the two adjacent locking rings 4, one side of the locking rod 78 is connected with a pressing rod 72 through a flap rod 76, the outer end of the pressing rod 72 is provided with a button 71.

[0032] Further, the end of the locking rod 78 away from the locking buckle 79 is sleeved with a locking spring 712, one end of the locking spring 712 abuts on the inner wall of the hidden warehouse 9, and the other end abuts on the stop ring 711 arranged on the outer wall of the locking rod 78.

[0033] Further, the middle part of the flap rod 76 is rotationally connected to the inner wall of the hidden warehouse 9 through a flap shaft 75, the two ends of the flap rod 76 are respectively provided with a sliding groove 73, the top end of the pressing rod 72 is slidably connected with one of the sliding grooves 73 through a first clamping column 74, one side of the locking rod 78 is provided with a connecting piece 710, the connecting piece 710 is slidably connected with the other sliding groove 73 through a second clamping column 77, the end of the hidden warehouse 9 near the pressing rod 72 is provided with a limiting slot, and the pressing rod 72 is insertedly connected with the limiting slot.

[0034] The spinal surgery semi-automatic depth finder in the utility model is used, first, the depth finder is in the unused state, the depth hook rod 2 is completely accommodated in the outer sleeve 1, the locking ring 4 is locked, the scale line 6 on the scale plate 5 is clearly visible.

[0035] Then the hook head 3 of the depth finder is inserted into the nail channel, the hook structure of the hook head 3 is used to explore the four walls of the nail channel, and the accuracy and patency of the nail channel are ensured.

[0036] After the exploration is completed, the user presses the button 71, the pressing rod 72 moves inward, the locking rod 78 moves outward through the transmission action of the flap rod 76 and the sliding groove 73, the locking buckle 79 is separated from the locking ring 4, and the locking of the depth hook rod 2 is released.

[0037] After the measurement is completed, the position indicated by the scale line 6 on the scale plate 5 can be observed, the depth of the nail channel can be accurately read, and the locking ring 4 is released so as to be used for next measurement or the depth finder is taken out.

[0038] After the locking ring 4 is released, the operator can repeat the above measurement process according to the need, or the depth finder is taken out of the nail channel.

[0039] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above examples, the above examples and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and the changes and improvements all fall within the scope of the utility model. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A semi-automatic depth measuring device for spinal surgery, comprising an outer sleeve (1), characterized in that: A depth measuring hook rod (2) is installed inside the outer sleeve (1). A hook head (3) is installed at one end of the depth measuring hook rod (2). Several locking rings (4) are provided on the depth measuring hook rod (2). A scale plate (5) is installed at the other end of the depth measuring hook rod (2). A buckling mechanism (7) is installed on the inner wall of the outer sleeve (1) near the depth measuring hook rod (2).

2. The semi-automatic depth measuring device for spinal surgery according to claim 1, characterized in that: The hook head (3) adopts a hook-shaped structure.

3. The semi-automatic depth measuring device for spinal surgery according to claim 1, characterized in that: The locking ring (4) is a ring structure and is arranged at equal intervals on the outer wall of the outer sleeve (1).

4. The semi-automatic depth measuring device for spinal surgery according to claim 1, characterized in that: The scale plate (5) is provided with scale lines (6).

5. The semi-automatic depth measuring device for spinal surgery according to claim 1, characterized in that: The outer sleeve (1) is provided with a hidden compartment (9) near the buckle mechanism (7), and the outer wall of the hidden compartment (9) is equipped with a maintenance cover (8).

6. The semi-automatic depth measuring device for spinal surgery according to claim 5, characterized in that: The latching mechanism (7) includes a locking rod (78), one end of which passes through the outer wall of the hidden compartment (9) and is fitted with a locking buckle (79). The locking buckle (79) is engaged between two adjacent locking rings (4). One side of the locking rod (78) is connected to a pressing rod (72) via a rocker arm (76). A button (71) is installed on the outer end of the pressing rod (72).

7. The semi-automatic depth measuring device for spinal surgery according to claim 6, characterized in that: A locking spring (712) is fitted on one end of the locking rod (78) away from the locking buckle (79). One end of the locking spring (712) abuts against the inner wall of the hidden compartment (9), and the other end abuts against the retaining ring (711) provided on the outer wall of the locking rod (78).

8. The semi-automatic depth measuring device for spinal surgery according to claim 6, characterized in that: The middle part of the rocker arm (76) is rotatably connected to the inner wall of the hidden compartment (9) via the rocker shaft (75). Both ends of the rocker arm (76) are provided with sliding grooves (73). The top end of the pressing rod (72) is slidably engaged with one sliding groove (73) via the first locking pin (74). A connector (710) is installed on one side of the locking rod (78). The connector (710) is slidably engaged with another sliding groove (73) via the second locking pin (77). A limiting groove is provided at the end of the hidden compartment (9) near the pressing rod (72). The pressing rod (72) is inserted into the limiting groove.

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