CN217014149U - Nucleus pulposus pincers with adjustable probing depth - Google Patents

Abstract

A nucleus pulposus clamp with adjustable probing depth comprises a fixed clamp body, a movable handle, a safety structure and an adjusting structure; the adjusting structure comprises a fixed block, a moving block, a micrometer knob, a guide structure and a tensioning structure. According to actual conditions, the micrometer knob in the adjusting structure drives the moving block to adjust a certain distance along the guide structure, so that the probing depth of the movable clamp body is limited, the unexpected condition caused by deep insertion of the nucleus pulposus clamp is avoided, and the safety factor in the operation is improved. The adjusting structure is fixed at the designated positions on the fixed clamp body and the movable clamp body through the fixing blocks, and the micrometer knob is arranged, so that the position precision during adjustment is improved; the tensioning structure plays a tensioning role for the moving structure, and the position deviation of the moving structure is avoided.

Description

Nucleus pulposus pincers with adjustable probing depth

Technical Field

The utility model relates to the field of medical instruments, in particular to nucleus pulposus forceps with adjustable probing depth.

Background

Nucleus pulposus pincers are one of the common surgical medical instruments, mainly used for clamping spinal disc tissues. However, there are a number of important nervous tissue structures in the intervertebral space and adjacent to the aortic vessels, and the depth of insertion of the nucleus pulposus clamp at the time of surgery is generally experienced by the physician, which means that the depth of insertion of the nucleus pulposus clamp is not controlled and, if it is not done so carelessly, it will be inserted too deep, thus damaging the blood vessels or nerves in front of the intervertebral space and causing irreparable damage to the patient.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide nucleus pulposus pincers with adjustable probing depth, which solve the problems existing in the use of the nucleus pulposus pincers.

The technical scheme is as follows: the utility model provides a nucleus pulposus clamp with adjustable probing depth, which comprises a fixed clamp body, a movable handle, a safety structure and an adjusting structure, wherein the movable clamp body is arranged above the fixed clamp body; the adjusting structure comprises a fixed block, two moving blocks, a micrometer knob, a guide structure and three tensioning structures, wherein the moving blocks and the fixed block are arranged in parallel, the micrometer knob is arranged on the fixed block, the guide structures are arranged in two groups in number, are arranged on the moving blocks in parallel and are connected with the fixed block, and the tensioning structures are arranged in three groups in number and are arranged between the fixed block and the moving block in parallel. According to actual conditions, the micrometer knob in the adjusting structure drives the moving block to adjust a certain distance along the guide structure, so that the probing depth of the movable clamp body is limited, the unexpected condition caused by deep insertion of nucleus pulposus clamps is avoided, and the safety factor in the operation is improved. The adjusting structure is fixed at the appointed positions on the fixed clamp body and the movable clamp body through the fixed block, and the micrometer knob is arranged, so that the position precision during adjustment is improved; the tensioning structure plays a tensioning role for the moving structure, and the position deviation of the moving structure is avoided.

Furthermore, the guide structure comprises a first guide rod structure, a second guide rod structure and a limiting plate, and the first guide rod structure and the second guide rod structure are arranged on the limiting plate in parallel and fixed through bolts. The limiting plate plays a limiting role in limiting the maximum adjusting distance of the adjusting structure.

Furthermore, the first guide rod structure and the second guide rod structure are the same in structure, the first guide rod structure comprises a guide rod and a guide sleeve, and the guide sleeve is arranged on the guide rod. The guide sleeve is fixed on the fixed block, the end part of the guide rod is fixed on the movable block, and when the micrometer knob pushes the movable block to adjust the position, the movable block moves along the guide sleeve through the guide rod, so that the moving position precision is improved.

Furthermore, the tensioning structure comprises a first spring fixing seat, a spring and a second spring fixing seat, wherein the first spring fixing seat and the second spring fixing seat are arranged at two ends of the spring. The first spring fixing seat and the second spring fixing seat are respectively fixed on the fixing block and the moving block, and when the micrometer knob pushes the moving block to adjust the position, the moving block is tensioned through tension generated when the springs deform.

Furthermore, the position of the adjusting structure mounted on the fixed clamp body is provided with scales.

The technical scheme shows that the utility model has the following beneficial effects: 1) the adjusting structure is arranged, so that the specific deep position of the nucleus pulposus clamp is limited during the operation, and the safety factor during the use is greatly improved; 2) the micrometer knob is arranged for distance adjustment, and position limitation is carried out through the guide structure and the tensioning structure, so that the accuracy and precision of distance adjustment are greatly improved; 3) simple structure, convenient operation and wide applicability.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a perspective view of the adjustment structure.

In the figure: the clamp comprises a fixed clamp body 1, a scale 11, a movable clamp body 2, a movable handle 3, a safety structure 4, an adjusting structure 5, a fixed block 51, a moving block 52, a micrometer knob 53, a guide structure 54, a first guide rod structure 541, a guide rod 5411, a guide sleeve 5412, a second guide rod structure 542, a limiting plate 543, a tensioning structure 55, a first spring fixing seat 551, a spring 552 and a second spring fixing seat 553.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Example one

As shown in fig. 1, the front view of the present invention includes a fixed pincer body 1, a movable pincer body 2, a movable handle 3, a safety structure 4 and an adjusting structure 5, wherein the movable pincer body 2 is arranged above the fixed pincer body 1, the movable handle 3 is arranged at the tail end of the movable pincer body 2 and connected with the fixed pincer body 1, the safety structure 4 is arranged between the movable handle 3 and the handle of the fixed pincer body 1, and the adjusting structure 5 is arranged on the fixed pincer body 1 and the movable pincer body 2; the adjusting structure 5 is shown in a perspective view in fig. 2, and includes a fixed block 51, a moving block 52, a micrometer knob 53, a guiding structure 54, and a tensioning structure 55, where the moving block 52 and the fixed block 51 are arranged in parallel, the micrometer knob 53 is arranged on the fixed block 51, the guiding structures 54 are arranged in two groups, are arranged in parallel on the moving block 52 and are connected to the fixed block 51, and the tensioning structure 55 is arranged in three groups, and is arranged in parallel between the fixed block 51 and the moving block 52.

The guide structure 54 includes a first guide rod structure 541, a second guide rod structure 542, and a limiting plate 543, and the first guide rod structure 541 and the second guide rod structure 542 are arranged in parallel on the limiting plate 543 and fixed by bolts.

The first guide bar structure 541 and the second guide bar structure 542 have the same structure, the first guide bar structure 541 includes a guide bar 5411 and a guide sleeve 5412, and the guide sleeve 5412 is disposed on the guide bar 5411.

The tensioning structure 55 comprises a first spring fixing seat 551, a spring 552 and a second spring fixing seat 553, wherein the first spring fixing seat 551 and the second spring fixing seat 553 are arranged at two ends of the spring 552.

The position of the adjusting structure 5 arranged on the fixed clamp body 1 is provided with a scale 11.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims (5)

1. The utility model provides a nucleus pulposus pincers with adjustable probe-in depth which characterized in that: the adjustable clamp comprises a fixed clamp body (1), a movable clamp body (2), a movable handle (3), a safety structure (4) and an adjusting structure (5), wherein the movable clamp body (2) is arranged above the fixed clamp body (1), the movable handle (3) is arranged at the tail end of the movable clamp body (2) and is connected with the fixed clamp body (1), the safety structure (4) is arranged between the movable handle (3) and the handle position of the fixed clamp body (1), and the adjusting structure (5) is arranged on the fixed clamp body (1) and the movable clamp body (2); the adjusting structure (5) comprises a fixed block (51), a moving block (52), a micrometer knob (53), a guiding structure (54) and a tensioning structure (55), wherein the moving block (52) and the fixed block (51) are arranged in parallel, the micrometer knob (53) is arranged on the fixed block (51), the guiding structures (54) are two in number, are arranged on the moving block (52) in parallel and are connected with the fixed block (51), and the tensioning structure (55) is three in number and is arranged between the fixed block (51) and the moving block (52) in parallel.

2. The adjustable insertion depth nucleus pulposus clamp of claim 1, wherein: the guide structure (54) comprises a first guide rod structure (541), a second guide rod structure (542) and a limiting plate (543), and the first guide rod structure (541) and the second guide rod structure (542) are arranged on the limiting plate (543) in parallel and fixed through bolts.

3. The adjustable insertion depth nucleus pulposus clamp of claim 2, wherein: the first guide rod structure (541) and the second guide rod structure (542) are identical in structure, the first guide rod structure (541) comprises a guide rod (5411) and a guide sleeve (5412), and the guide sleeve (5412) is arranged on the guide rod (5411).

4. The adjustable insertion depth nucleus pulposus clamp of claim 1, wherein: the tensioning structure (55) comprises a first spring fixing seat (551), a spring (552) and a second spring fixing seat (553), wherein the first spring fixing seat (551) and the second spring fixing seat (553) are arranged at two ends of the spring (552).

5. The adjustable insertion depth nucleus pulposus clamp of claim 1, wherein: the fixed clamp body (1) is provided with an adjusting structure (5) and scales (11) at the position.

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