CN211325541U

CN211325541U - Telescopic brush for arthroscope

Info

Publication number: CN211325541U
Application number: CN201921101126.2U
Authority: CN
Inventors: 杨波
Original assignee: Peking Union Medical College Hospital Chinese Academy of Medical Sciences
Current assignee: Peking Union Medical College Hospital Chinese Academy of Medical Sciences
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-08-25
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses a telescopic hairbrush for arthroscope, which comprises a brush head, a brush handle and a sleeve; the brush head is arranged at the front end of the brush handle; the inner diameter of the sleeve is larger than the outer diameter of the brush handle, the sleeve is sleeved outside the brush head and the brush handle, and the length of the sleeve is larger than or equal to that of the brush head. This application convenient operation compares with traditional planing tool bit and radio frequency vaporization tool bit, both can clear away the pathological change tissue on articular surface furthest, can not harm articular cartilage again, makes things convenient for the small incision of business turn over moreover.

Description

Telescopic brush for arthroscope

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to telescopic brush for arthroscope.

Background

Thanks to the rapid development of arthroscopic minimally invasive techniques and instruments, the arthroscopic surgery has more and more extensive adaptation cards and continuously improved surgery effect. Many autoimmune diseases such as: rheumatoid arthritis, systemic lupus erythematosus, ankylosing spondylitis and the like can cause synovium inflammation of different joints of the whole body, and when patients with the arthritis are ineffectively treated through regular conservative treatment, the pathological synovium tissue is completely removed through arthroscopic surgery so as to relieve the symptoms of the patients and improve the functions of the joints. It is often found that many diseased synovial tissues adhere to the articular cartilage surface during surgery (as shown in figures 9 to 11); when the patients with gouty synovitis cannot relieve pain or joint dysfunction is caused by conservative treatment, arthroscopic surgery is also needed to clean the pathological synovium and urate crystals in joint cavities, and a large amount of white urate crystals are found to be attached to the surface of articular cartilage in the surgery; in addition, when intra-articular infection occurs after the artificial joint replacement, arthroscopic surgery may be needed to clean the focus, and a layer of false membrane caused by the infection is covered on the surface of the joint prosthesis during the surgery. All the situations need to remove the diseased tissues on the surfaces of the articular cartilage or the articular prosthesis, and the more thorough and clean removal is more beneficial to improving the postoperative effect, but the currently used removing tools only comprise a planing tool bit (shown in figure 12) and a radio frequency vaporization tool bit (shown in figure 13), the front end of the planing tool bit is divided into a toothed tool bit and a toothless tool bit, but the planing tool bit is sharper, so that the smooth, fragile and difficult-to-regenerate articular cartilage or the artificial articular prosthesis with polished surfaces can be damaged in the process of removing the diseased tissues inevitably; the radio frequency vaporization cutter head can generate a certain heat effect on the cartilage when the lesion on the surface of the cartilage is cleaned, the cleaning depth is difficult to control, and the normal cartilage tissue below the radio frequency vaporization cutter head is easy to damage while the lesion is removed by vaporization. Therefore, the utility model aims at designing a telescopic brush which is easy to pass in and out of the joint cavity, which is used for thoroughly removing the pathological change tissues on the surfaces of the articular cartilage or the artificial joint prosthesis, and simultaneously can not cause the apparatuses damaged by important structures, thereby not only improving the operation effect, but also leading the operation to be further minimally invasive.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a telescopic brush for arthroscope can brush out the pathological change synovial membrane, urate crystallization or the infectivity false membrane on patient's articular cartilage surface or artificial joint prosthesis surface.

One aspect of the utility model provides a telescopic brush for arthroscope, which comprises a brush head, a brush handle and a sleeve; the brush head is arranged at the front end of the brush handle; the inner diameter of the sleeve is larger than the outer diameter of the brush handle, the sleeve is sleeved outside the brush head and the brush handle, and the length of the sleeve is larger than or equal to that of the brush head.

Above the telescopic hair brush for arthroscopy, preferably, the bristles of the brush head are provided with at least two levels of branches, so that the bristles are more plump, and the brushing effect is better.

Above the telescopic brush for arthroscope, preferably, the rear end of the brush handle is also provided with a brush handle pull ring. Preferably, the aperture of the handle pull ring is slightly larger than the diameter of the fingers of a common person, so that the manual operation is convenient.

Above the telescopic hairbrush for arthroscope, preferably, the outer side wall of the sleeve is further provided with a sleeve pull ring. Preferably, the aperture of the sleeve pull ring is slightly larger than the diameter of an ordinary finger, so that the sleeve pull ring is convenient to fold and operate.

The telescopic hairbrush for the arthroscope is preferably provided with two sleeve pull rings.

Above telescopic brush for arthroscope, preferably, the brush holder still is equipped with articulated parts, articulated parts include articulated piece, bolt and lock nut down, the bolt passes go up articulated piece with articulated piece down, the lock nut cover is located the bolt tail end. The angle of the brush head can be adjusted by loosening the locking nut, the locking nut is screwed up after the angle suitable for operation is adjusted, the angle of the brush head is fixed, and pathological tissues on the surfaces of cartilages at different parts and different outlines in joints can be conveniently brushed off.

The retractable brush for arthroscopy described above is preferably configured such that the length of the brush handle below the lower hinge plate is greater than the length of the sleeve, so that the hinge part can be operated when the sleeve is completely pulled to the rear end.

Advantageous effects

The utility model discloses a telescopic hairbrush for arthroscope, which comprises a brush head, a brush handle and a sleeve; the brush head is arranged at the front end of the brush handle; the inner diameter of the sleeve is larger than the outer diameter of the brush handle, the sleeve is sleeved outside the brush head and the brush handle, and the length of the sleeve is larger than or equal to that of the brush head. The utility model discloses be suitable for and use under the arthroscope, when patient's articular cartilage or artificial joint prosthesis surface adhere to pathological change synovial membrane, urate crystallization or infects false membrane and need clear away, stretch into patient's joint through the brush with this application in, through the angle of adjusting the brush head, thoroughly brush away the pathological change tissue on cartilage or prosthesis surface. The brush head is wrapped by the outer sleeve, the outer wall of the outer sleeve is smooth, and compared with the brush head, the arthroscope brush can conveniently enter and exit a small incision, the outer sleeve is sleeved outside the brush head and enters the incision, the outer sleeve is pulled out after the incision enters the incision, the brush head is popped out to clean pathological change tissues on the surface of a joint, the brush handle is pulled to enable the brush head to be retracted into the outer sleeve after the operation is finished, and the arthroscope brush is integrally pulled out; this application convenient operation compares with traditional planing tool bit and radio frequency vaporization tool bit, both can clear away the pathological change tissue on articular surface furthest, can not harm articular cartilage again, and it is just convenient to be wicresoft.

Drawings

FIG. 1 is a front view of the retractable brush for arthroscope of the present invention;

FIG. 2 is a left side view of the retractable brush for an arthroscope of the present invention;

FIG. 3 is a top view of the retractable brush for an arthroscope of the present invention;

FIG. 4 is a bottom view of the retractable brush for an arthroscope of the present invention;

FIG. 5 is a diagram showing the state that the retractable brush for arthroscope of the present invention enters the joint cavity;

FIG. 6 is a view showing the state of the retractable brush for arthroscope entering and exiting the incision;

FIG. 7 is an exploded view of an embodiment 2 of the retractable brush for an arthroscope according to the present invention;

FIG. 8 is an enlarged view of a part of bristles of the retractable brush for an arthroscope according to the present invention;

FIG. 9 shows synovial tissue attached to the cartilage surface of knee joint of rheumatoid arthritis patients;

FIG. 10 shows an infectious pseudomembrane (white) with the surface of the prosthesis not cleaned after the artificial total knee replacement surgery;

FIG. 11 shows crystals (white) of urate attached to the articular cartilage and meniscus surface of a patient with knee osteoarthritis;

FIG. 12 is a toothed planing tool head for an arthroscope;

fig. 13 is an arthroscopic radio frequency vaporization blade.

The reference numbers are as follows:

the toothbrush comprises a toothbrush head 1, a toothbrush handle 11, a toothbrush handle pull ring 12, a sleeve 2, a sleeve pull ring 21, an upper hinge sheet 31, a lower hinge sheet 32, a bolt 33 and a locking nut 34.

Detailed Description

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.

As used herein, the terms "front", "front" and "front" refer to the end of the patient that is closer to the wound during use, and the terms "back", "rear" and "rear" refer to the end of the patient that is farther from the wound during use, and the terms "upper", "lower" and "lower" refer to the directions and positions shown in the drawings.

Example 1

Referring to fig. 1 to 6 and 8, the embodiment provides a telescopic brush for an arthroscope, which comprises a brush head 1, a brush handle 11 and a sleeve 2; the brush head 1 is arranged at the front end of the brush handle 11; the 2 internal diameters of sleeve pipe are greater than 11 external diameters of brush holder, cup joint in

brush head

1 and 11 outsides of brush holder, and 2 length of sleeve pipe are greater than or equal to brush head 1 length, and the sleeve pipe need cover brush head 1 just can avoid brush head 1 and incision friction too big, be difficult to pass through when business turn over joint incision operation.

Preferably, the bristles of the brush head 1 have at least two levels of branches, and the multi-level bristles can increase the contact chance of the brush head 1 with the joint and clean the joint surface in all directions at multiple angles.

Preferably, handle pull ring 12 is further provided at the rear end of handle 11. It is further preferred that handle pull ring 12 have an aperture slightly larger than the diameter of a typical human finger to facilitate insertion of the finger therein to pull or push the handle during operation.

Preferably, the outer side wall of the casing is further provided with a casing pull ring 21. Still preferably, the aperture of the cannula pull ring 21 is slightly larger than the diameter of an ordinary human finger, so that the finger can be conveniently inserted into the cannula pull ring to pull or push the cannula 2.

Preferably, the number of the sleeve pull rings 21 is two, so that uniform force application is facilitated when the sleeve 2 is pulled, and the pulling is smoother.

During the use, push away sleeve pipe 2 forward until covering brush head 1, then stretch into the joint incision with the brush of this application, observe under the arthroscope, brush head 1 stretches into behind the suitable length and pulls out sleeve pipe 2 backward, exposes brush head 1, and the surperficial pathological change tissue of joint is removed in the brush holder 11 brush of operation, advances sleeve pipe 2 forward after the operation is accomplished, covers brush head 1, pulls out the brush of this application is whole again.

Example 2

Referring to fig. 7, in the retractable brush for arthroscopy provided by the present embodiment, the brush handle 11 is further provided with a hinge component, the hinge component comprises an upper hinge plate 31, a lower hinge plate 32, a bolt 33 and a lock nut 34, the bolt 33 passes through the upper hinge plate 31 and the lower hinge plate 32, and the lock nut 34 is sleeved on the tail end of the bolt 33. The angle of the brush head can be adjusted by loosening the lock nut 34, and the lock nut 34 is tightened after the angle is adjusted to a proper angle for operation, so that the angle of the brush head is fixed. Other structures of this embodiment are the same as those of embodiment 1, and are not described herein again.

During the use, push away sleeve pipe 2 forward until covering brush head 1, then stretch into the joint incision with the brush of this application, observe under the arthroscope, operation brush head 1 stretches into behind the suitable length and pulls out sleeve pipe 2, expose brush head 1, pull sleeve pipe 2 to brush holder 11 rearmost end, unscrew lock nut 34, adjust brush head 1 angle, adjust to after the suitable position, screw up lock nut 34, operation brush holder 11 brushes and removes articular surface pathological change tissue, loosen lock nut 34 again after the operation is accomplished, make brush head 1 and brush holder 11 locate on a straight line, impel sleeve pipe 2 forward, cover brush head 1, again with the whole drawing-out of the brush of this application.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A telescopic hairbrush for an arthroscope is characterized by comprising a brush head, a brush handle and a sleeve; the brush head is arranged at the front end of the brush handle; the inner diameter of the sleeve is larger than the outer diameter of the brush handle, the sleeve is sleeved outside the brush head and the brush handle, and the length of the sleeve is larger than or equal to that of the brush head.

2. The retractable arthroscopic brush of claim 1 wherein said bristles of said head have at least two secondary branches.

3. The retractable bristle brush for arthroscope of claim 1, wherein a handle pull ring is provided at the rear end of the handle.

4. The retractable bristle brush for arthroscope of claim 1, wherein the sleeve has a sleeve pull ring on the outer side wall.

5. The retractable brush for an arthroscope of claim 4, wherein the number of the sleeve tabs is two.

6. The retractable brush for arthroscope of claim 1, wherein the brush handle is further provided with a hinge part, the hinge part comprises an upper hinge plate, a lower hinge plate, a bolt and a locking nut, the bolt penetrates through the upper hinge plate and the lower hinge plate, and the locking nut is sleeved on the tail end of the bolt.

7. The retractable brush for arthroscopy of claim 6, wherein the length of the handle below the lower hinge plate is greater than the length of the sleeve.