Nucleus pulposus forceps with warning coating

By providing a warning coating and a limiting structure on the nucleus pulposus forceps, the problem of inaccurate depth judgment of the nucleus pulposus forceps is solved, the precise insertion of the nucleus pulposus forceps during surgery is achieved, and the risk of damage to the patient's soft tissue is reduced.

CN223473828UActive Publication Date: 2025-10-28SUN YAT SEN MEMORIAL HOSPITAL SUN YAT SEN UNIV
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Patent Information

Application Number
CN202422003015.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-19
Publication Date
2025-10-28
Estimated Expiration
2034-08-19

AI Technical Summary

Technical Problem

It is difficult to accurately judge the depth of the existing nucleus pulposus forceps during use, which may cause damage to the anterior ligament and large blood vessels.

Method used

Two movable warning coatings are set on the nucleus pulposus forceps body to mark the minimum and maximum depths. A limit plate, a scale and a limit ring are optional to accurately control the depth and avoid over-insertion.

Benefits of technology

Through visual identification and limiting structure, the nucleus pulposus forceps are ensured to be inserted into the correct depth during surgery, thus avoiding damage to the patient's soft tissue.

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Abstract

The utility model relates to nucleus pulposus forceps with warning coatings. The nucleus pulposus forceps comprise a nucleus pulposus forceps body. A threaded rod is fixedly connected to a connecting rod of the nucleus pulposus forceps body in a sleeving mode, the threaded rod is sleeved with two threaded cylinders in a threaded mode, and warning coatings are arranged on the outer surfaces of the two threaded cylinders. Compared with the prior art, the device has the advantages that before an operation, the two threaded cylinders are rotated according to lesion points in the body of a patient, and the two warning coatings move on the threaded rods, so that the two warning coatings can be moved to corresponding positions according to operation requirements; the front end face of the front warning coating and the rear end face of the rear warning coating correspond to the minimum value and the maximum value of the depth, stretching into the human body, of the nucleus pulposus forceps body in the operation process respectively, the two warning coatings are arranged on the nucleus pulposus forceps body and serve as obvious visual marks, and when medical workers conduct the operation, the medical workers can conveniently conduct the operation on the nucleus pulposus forceps body. The depth of the nucleus pulposus forceps body extending into the intervertebral disc can be known through the warning coating.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a nucleus pulposus clamp with a warning coating. Background Technology

[0002] The nucleus pulposus clamp is one of the commonly used medical instruments in spinal surgery. It is mainly used to clamp the intervertebral disc tissue of the spine.

[0003] In clinical practice, nucleus pulposus forceps are used to remove diseased intervertebral disc nucleus pulposus and annulus fibrosus. Currently, most clinicians rely on their personal experience to judge the depth of the forceps into the intervertebral disc. If they are not careful, the forceps may be inserted too deeply. In front of the intervertebral disc are the anterior longitudinal ligament and major abdominal blood vessels. If the insertion depth is too great, it may damage the ligaments and major blood vessels in front, leading to disastrous consequences. Utility Model Content

[0004] The purpose of this invention is to provide a nucleus forceps with a warning coating to solve the above-mentioned problems existing in the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A nucleotomy forceps with a warning coating includes a nucleotomy forceps body; a threaded rod is fixedly sleeved on the connecting rod of the nucleotomy forceps body, and two threaded cylinders are threaded onto the upper thread of the threaded rod, with a warning coating provided on the outer surface of both threaded cylinders.

[0007] The beneficial effects of this invention are as follows: Before surgery, based on the lesion points in the patient's body, two threaded cylinders are rotated, and two warning coatings move on the threaded rods, allowing the two warning coatings to move to the corresponding positions according to the surgical needs. Specifically, the front end face of the front warning coating and the rear end face of the rear warning coating correspond to the minimum and maximum depths of the nucleus pulposus clamp body inserted into the human body during the surgery, respectively. By setting two warning coatings on the nucleus pulposus clamp body, the warning coatings serve as clear visual markers, making it easy for medical staff to know the depth of the nucleus pulposus clamp body inserted into the intervertebral disc during surgery, thereby avoiding the nucleus pulposus clamp body being inserted too deeply into the patient's body and causing damage to other soft tissues in the body.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, a limiting plate is provided at the rear end of the threaded rod.

[0010] Furthermore, it also includes a fixing plate and two connecting cylinders. Connecting cylinders are fixedly installed at both ends of the threaded rod. The limiting plate is sleeved on the connecting cylinders at the rear. The fixing plate is parallel to the threaded rod and passes through the limiting plate. Both ends are fixedly installed on the two connecting cylinders respectively. A mounting plate is fixedly installed on one side surface of the limiting plate corresponding to the fixing plate. Bolts are threaded into the mounting plate. The fixing plate has a plurality of threaded holes at intervals that match the bolts.

[0011] Furthermore, it also includes a scale, which is parallel to the threaded rod and passes through the limiting plate, with its two ends fixedly mounted on the two connecting cylinders respectively.

[0012] Furthermore, a limiting ring is fixedly provided on the connecting rod on each of the two connecting cylinders on opposite sides to limit the position of the limiting plate.

[0013] Furthermore, both the threaded rod and the connecting cylinder are made of stainless steel. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram showing the connection relationship between the threaded rod and the threaded cylinder of this utility model;

[0016] Figure 3 This is a schematic diagram showing the connection relationship between the limiting plate, the mounting plate, and the fixing plate of this utility model.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Nucleus pulposus forceps body; 101. Connecting rod; 2. Threaded rod; 3. Threaded cylinder; 4. Warning coating; 5. Connecting cylinder; 6. Limiting plate; 7. Limiting ring; 8. Fixing plate; 9. Mounting plate; 10. Bolt; 11. Threaded hole; 12. Scale. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] like Figures 1 to 3 As shown, Embodiment 1 of this utility model provides a nucleotomy forceps with a warning coating, comprising a nucleotomy forceps body 1; a threaded rod 2 is fixedly sleeved on the connecting rod 101 of the nucleotomy forceps body 1, and two threaded cylinders 3 are threadedly sleeved on the upper thread of the threaded rod 2, and a warning coating 4 is provided on the outer surface of both threaded cylinders 3.

[0021] Before surgery, based on the lesion points in the patient's body, the two threaded cylinders 3 are rotated, and the two warning coatings 4 move on the threaded rod 2, so that the two warning coatings 4 can move to the corresponding positions according to the needs of the surgery. That is, the front end face of the front warning coating 4 and the rear end face of the rear warning coating 4 correspond to the minimum and maximum depths of the nucleus pulposus clamp body 1 inserted into the human body during the operation, respectively. By setting two warning coatings 4 on the nucleus pulposus clamp body 1, the warning coatings 4 serve as obvious visual markers, making it easy for medical staff to know the depth of the nucleus pulposus clamp body 1 inserted into the intervertebral disc during surgery, thereby avoiding the nucleus pulposus clamp body 1 being inserted too deeply into the patient's body and causing damage to other soft tissues in the body.

[0022] Embodiment 2 of this utility model provides a nucleotomy clamp with a warning coating. Based on Embodiment 1, a limiting plate 6 is provided at the rear end of the threaded rod 2.

[0023] By setting the limiting plate 6, when medical staff accidentally insert it too deeply, the limiting plate 6 can contact the facet joints and other parts, thereby limiting the nucleus pulposus clamp body 1, preventing the nucleus pulposus clamp body 1 from going further in, and avoiding damage to the soft tissues in the patient's body from inserting the nucleus pulposus clamp body 1 too deeply.

[0024] According to Embodiment 3 of this utility model, a nucleotomy forceps with a warning coating, based on Embodiment 2, further includes a fixing plate 8 and two connecting cylinders 5. The connecting cylinders 5 are fixedly installed at both ends of the threaded rod 2. The limiting plate 6 is sleeved on the rear connecting cylinder 5. The fixing plate 8 is parallel to the threaded rod 2 and passes through the limiting plate 6, and is fixedly installed at both ends on the two connecting cylinders 5 respectively. A mounting plate 9 is fixedly installed on one side surface of the limiting plate 6 corresponding to the fixing plate 8. Bolts 10 are threaded into the mounting plate 9. The fixing plate 8 is provided with a plurality of threaded holes 11 that match the bolts 10 at intervals.

[0025] The limiting plate 6 is adjustable at the rear end of the threaded rod 2 by means of the connecting cylinder 5, the fixing plate 8, the mounting plate 9 and the bolt 10, which allows the surgeon to adjust the position of the limiting plate 6 according to the patient's body shape.

[0026] This utility model embodiment 4 provides a nucleotomy forceps with a warning coating. Based on embodiment 3, it also includes a scale 12. The scale 12 is parallel to the threaded rod 2 and passes through the limiting plate 6. Both ends are fixedly mounted on the two connecting cylinders 5.

[0027] The scale 12 provides an intuitive visual reference, enabling operators to precisely adjust the positions of the limit plate 6 and the threaded cylinder 3, thereby accurately controlling the range of motion of the limit plate 6 and the threaded cylinder 3. This allows operators to easily adjust and position the equipment without relying on complex measuring tools or methods.

[0028] This utility model embodiment 5 is a nucleoside clamp with a warning coating. Based on embodiment 3, a limiting ring 7 is fixedly provided on the connecting rod 101 and on the opposite side of the two connecting cylinders 5 to limit the limiting plate 6.

[0029] The limiting ring 7 limits the limiting plate 6, so that when the staff adjusts the limiting plate 6, the limiting plate 6 will not slide out of the nucleus pulposus forceps body 1.

[0030] Embodiment 6 of this utility model provides a nucleotomy clamp with a warning coating. Based on Embodiment 3, both the threaded rod 2 and the connecting cylinder 5 are made of stainless steel.

[0031] By making the threaded rod 2 and the connecting cylinder 5 stainless steel, the threaded rod 2 and the connecting cylinder 5 can be compatible with human tissue when inserted into the human body, without causing allergies, toxicity or immune rejection, thus reducing the occurrence of surgical accidents.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nucleoside clamp with a warning coating, characterized in that, The device includes a nucleoside clamp body (1); a threaded rod (2) is fixedly sleeved on the connecting rod (101) of the nucleoside clamp body (1), and two threaded cylinders (3) are threaded onto the upper thread of the threaded rod (2), and a warning coating (4) is provided on the outer surface of the two threaded cylinders (3).

2. The nucleoplasty forceps with a warning coating according to claim 1, characterized in that, The threaded rod (2) is provided with a limiting plate (6) at its rear end.

3. The nucleoplasty forceps with a warning coating according to claim 2, characterized in that, It also includes a fixing plate (8) and two connecting cylinders (5). The two ends of the threaded rod (2) are fixedly provided with connecting cylinders (5). The limiting plate (6) is sleeved on the connecting cylinder (5) behind. The fixing plate (8) is parallel to the threaded rod (2) and passes through the limiting plate (6). The two ends are fixedly provided on the two connecting cylinders (5) respectively. One side surface of the limiting plate (6) is fixedly provided with a mounting plate (9) corresponding to the fixing plate (8). Bolts (10) are threaded into the mounting plate (9). The fixing plate (8) has a plurality of threaded holes (11) that match the bolts (10) spaced apart on its upper surface.

4. The nucleoplasty forceps with a warning coating according to claim 3, characterized in that, It also includes a scale (12), which is parallel to the threaded rod (2) and passes through the limiting plate (6), with its two ends fixedly mounted on the two connecting cylinders (5).

5. A nucleoside clamp with a warning coating according to claim 3, characterized in that, The connecting rod (101) is fixedly provided with a limiting ring (7) on each of the two connecting cylinders (5) on opposite sides to limit the limiting plate (6).

6. The nucleoplasty forceps with a warning coating according to claim 3, characterized in that, Both the threaded rod (2) and the connecting cylinder (5) are made of stainless steel.