CN213249494U

CN213249494U - Cartilage endplate excising device

Info

Publication number: CN213249494U
Application number: CN202020734931.5U
Authority: CN
Inventors: 马立泰; 杨毅; 刘浩
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-05-25
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a cartilage endplate excising device, include: the upper head part, the lower head part, the movable arm, the fixed arm and the handle; the lower head part is fixedly connected with the front end of the fixed arm, the upper head part is movably connected with a pin shaft at the front end of the movable arm, the tail part of the upper head part is connected with a spring wire in the movable arm, and the spring wire is connected with a handle; the movable arm and the fixed arm are both connected with the handle; the middle part of the upper head part is provided with a through hole; the edge of the upper head part is provided with a micro blade. The utility model discloses can be fast with cartilage end plate and the separation of bony end plate, shorten the operation time, be convenient for operate in constrictive intervertebral space, reduce the operation expense, do benefit to the quick recovery of patient.

Description

Cartilage endplate excising device

Technical Field

The utility model relates to the field of medical equipment research, concretely relates to cartilage endplate excising device.

Background

Disc surgery requires removal of the entire disc, nucleus pulposus tissue, annulus fibrosus, and then also removal of the endplates at the surface of the vertebral body. The cartilage end plate is compact and is tightly attached to the bony end plate; the cartilage end plate has toughness, is difficult for scraping off when scraping off, and the cartilage end plate is flocculent when scraping off, is difficult for scraping off, and whole process is consuming time hard.

There are three methods for clinically scraping the cartilage end plate.

The first kind adopts the curette, uses the curette to slowly scrape off the cartilage end plate, need consume a large amount of time, and is difficult for scraping completely, and the very big part time of whole operation all can consume on scraping off the cartilage end plate, leads to patient anesthesia time extension, and the expense increases, and is unfavorable for the quick recovery of patient.

Secondly, the nucleus pulposus clamp is adopted for biting, when the nucleus pulposus clamp is used for biting, the cartilage end plate is filiform, the nucleus pulposus clamp does not have a cutting effect, the filiform cartilage end plate cannot be cut off, and some flocculent cartilage end plates cannot be scraped during the biting of the nucleus pulposus clamp; the head of the nucleus pulposus clamp is too thick, the opening degree after the nucleus pulposus clamp enters the intervertebral space is limited, only one cartilage end plate can be bitten each time, the operation time is prolonged, the anesthesia time of a patient is prolonged, the cost is increased, and the quick recovery of the patient is not facilitated.

The third one adopts the curet to be matched with the nucleus pulposus pincers for use, but the problems that the operation time is too long, the anesthesia time of a patient is prolonged, the cost is increased, and the quick recovery of the patient is not facilitated exist at all.

Disclosure of Invention

The utility model aims at providing a cartilage end plate excising device can be fast with cartilage end plate and the separation of bony end plate, has shortened the operation time, is convenient for operate in constrictive intervertebral space, has reduced the operation expense, does benefit to the quick recovery of patient.

In order to achieve the above object, the present invention provides a cartilage endplate resectoscope, comprising: the upper head part, the lower head part, the movable arm, the fixed arm and the handle; the lower head part is fixedly connected with the front end of the fixed arm, the upper head part is movably connected with a pin shaft at the front end of the movable arm, the tail part of the upper head part is connected with a spring wire in the movable arm, and the spring wire is connected with a handle; the movable arm and the fixed arm are both connected with the handle; the middle part of the upper head part is provided with a through hole; the edge of the upper head part is provided with a micro blade.

Preferably, the edge of the lower head part is provided with a groove which is matched with the micro blade of the upper head part.

Preferably, the lower head part is in an oval shovel shape.

Preferably, the upper head portion is elliptical.

Preferably, the upper head and the lower head are coaxial with the movable arm and the fixed arm.

Preferably, the horizontal included angle between the axes of the upper head part and the lower head part and the axes of the movable arm and the fixed arm is 30 degrees.

Preferably, the horizontal included angle between the axes of the upper head part and the lower head part and the axes of the movable arm and the fixed arm is-30 degrees.

Preferably, the microblade is in the shape of an annular sheet, and the edge of the microblade faces downwards.

The utility model discloses following beneficial effect has:

1. the cartilage end plate and the bony end plate can be quickly separated, and the operation time is shortened;

2. facilitating manipulation in the narrow intervertebral space;

3. the operation cost is reduced;

4. is beneficial to the rapid rehabilitation of patients.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of view A in FIG. 1;

FIG. 3 is a schematic structural view of the engaging surface of the lower head and the upper head;

in the figure: 1-upper head, 101-micro blade, 102-through hole, 2-lower head, 201-groove, 3-movable arm, 4-fixed arm, and 5-handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.

The utility model discloses a cartilage endplate excising device, include: the device comprises an upper head part 1, a lower head part 2, a movable arm 3, a fixed arm 4 and a handle 5; the lower head part 2 is fixedly connected with the front end of the fixed arm 4, the upper head part 1 is movably connected with a pin shaft at the front end of the movable arm 3, the tail part of the upper head part 1 is connected with a spring wire in the movable arm 3, and the spring wire is connected with a handle 5; the movable arm 3 and the fixed arm 4 are both connected with a handle 5; the middle part of the upper head part 1 is provided with a through hole 102; the edge of the upper head part 1 is provided with a micro blade 101.

Preferably, the lower head 2 is provided with a groove 201 at the edge, and the groove 201 is matched with the micro blade 101 of the upper head 1.

Preferably, the lower head 2 is in the shape of an oval shovel.

Preferably, the upper head 1 is elliptical.

Preferably, the upper head part 1 and the lower head part 2 are coaxial with the movable arm 3 and the fixed arm 4.

Preferably, the horizontal included angle between the axes of the upper head part 1 and the lower head part 2 and the axes of the movable arm 3 and the fixed arm 4 is 30 degrees.

Preferably, the horizontal included angle between the axes of the upper head part 1 and the lower head part 2 and the axes of the movable arm 3 and the fixed arm 4 is-30 degrees.

Preferably, the micro blade 101 is in the shape of a ring plate, and the edge of the micro blade 101 faces downward.

The specific operation process comprises the following steps:

the handle 5 is held by hand, the lower head 2 is enabled to shovel into a gap between the cartilage end plate and the bony end plate, the cartilage end plate is pried and peeled after the lower head 2 is inserted into the gap, the handle 5 is tightly held to control the upper head 1 after the cartilage end plate is pried and peeled, the miniature blade 101 of the upper head 1 is enabled to be meshed with the groove 201 of the lower head 2, the cartilage end plate is cut off, the cut cartilage end plate is clamped in the through hole 102 of the upper head 1, and finally the cartilage end plate is taken out.

Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.

Claims

1. A cartilage endplate resectoscope comprising: an upper head (1), a lower head (2), a movable arm (3), a fixed arm (4) and a handle (5); the lower head (2) is fixedly connected with the front end of the fixed arm (4), the upper head (1) is movably connected with a pin shaft at the front end of the movable arm (3), the tail part of the upper head (1) is connected with a spring wire in the movable arm (3), and the spring wire is connected with the handle (5); the movable arm (3) and the fixed arm (4) are both connected with a handle (5); the middle part of the upper head part (1) is provided with a through hole (102); the edge of the upper head part (1) is provided with a micro blade (101).

2. A cartilage endplate resectoscope according to claim 1, wherein: the edge of the lower head part (2) is provided with a groove (201), and the groove (201) is matched with the micro blade (101) of the upper head part (1).

3. A cartilage endplate resectoscope according to claim 1, wherein: the lower head part (2) is in an elliptic shovel shape.

4. A cartilage endplate resectoscope according to claim 1, wherein: the upper head (1) is elliptical.

5. A cartilage endplate resectoscope according to claim 1, wherein: the upper head (1) and the lower head (2) are coaxial with the movable arm (3) and the fixed arm (4).

6. A cartilage endplate resectoscope according to claim 1, wherein: the horizontal included angle between the axes of the upper head (1) and the lower head (2) and the axes of the movable arm (3) and the fixed arm (4) is 30 degrees.

7. A cartilage endplate resectoscope according to claim 1, wherein: the horizontal included angle between the axes of the upper head (1) and the lower head (2) and the axes of the movable arm (3) and the fixed arm (4) is-30 degrees.

8. A cartilage endplate resectoscope according to claim 1, wherein: the micro blade (101) is in an annular sheet shape, and the cutting edge of the micro blade (101) faces downwards.