CN112773581A

CN112773581A - Split type binary channels work sleeve pipe

Info

Publication number: CN112773581A
Application number: CN202110210623.1A
Authority: CN
Inventors: 贺石生; 倪海键; 冯超博
Original assignee: Shanghai Tenth Peoples Hospital
Current assignee: Shanghai Tenth Peoples Hospital
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-05-11

Abstract

The invention discloses a split type double-channel working sleeve which is provided with a hollow pipe body and an interlayer, wherein the two ends of the hollow pipe body are open, the interlayer is arranged in the hollow pipe body, the interlayer is communicated with the end part and the tail part of the hollow pipe body, and the inner part of the hollow pipe body is divided into two independent channels which are a working channel and an endoscope channel. By applying the invention, the design of the whole tube body conforms to the three-dimensional anatomical structure of the Kamb i n triangle (safe triangle working area), the extra damage to a patient in the placing process is reduced, and the safety is improved.

Description

Split type binary channels work sleeve pipe

Technical Field

The invention relates to a medical instrument for an intervertebral fusion, in particular to a working sleeve used in the intervertebral fusion.

Background

With the idea of minimally invasive spine surgery going deep into the heart, more and more spine surgeons use minimally invasive surgery as the preferred treatment strategy at present due to the advantages of small injury, quick recovery and the like. In the operation of reconstructing the stability of the spine, the intervertebral fusion has an important position, and the key of the intervertebral fusion is to place the intervertebral cage.

The chinese patent CN202011043424.8 previously applied by the applicant discloses a dual-channel working cannula, but because of the limited minimally invasive operation space and the limited surgical field, in the current intervertebral fusion, for different types of fusion devices, the operator can only place the channel matched with the fusion device or use the expandable fusion device. For larger size fusion cages, the placement of a large channel would increase the risk of tissue and nerve damage and would only translate into the use of expandable fusion cages. However, the difference between the material problem of the expandable fusion cage and the elastic modulus of bones is large, so that the operation failure caused by end plate damage, collapse, non-fusion of bone grafting and the like is easy to occur. Meanwhile, the whole-process visualization cannot be realized by the current operation channel design, particularly when the fusion device is finally driven in, the endoscope is withdrawn and is changed into a channel with a larger diameter, and the operation is carried out only by means of perspective and under the condition of hand feeling blind vision, so that the risk of nerve injury is increased.

Therefore, how to realize the minimal channel for placing the intervertebral fusion device and realize the whole visual process is the problem that is continuously solved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a novel working sleeve for intervertebral fusion, which is convenient to separate and expand quickly.

The technical scheme of the invention is as follows:

the utility model provides a split type binary channels working sleeve, this working sleeve have body and intermediate layer, the body is the uncovered cavity body in both ends, inside it is arranged in to the intermediate layer, this intermediate layer intercommunication the tip and the afterbody of body to with the body is inside to be cut apart into two independent passageways, for working channel and scope passageway, the body is the disconnect-type body, cuts apart into two parts along its axis, is first tubular product and second tubular product respectively, be equipped with on the first tubular product and bear the weight of the mechanism, be equipped with on the second tubular product with bear the roll adjustment mechanism that the mechanism corresponds, adjust the distance that opens and shuts between the two through the cooperation of bearing between mechanism and the roll adjustment mechanism between first tubular product and the second tubular product.

As a further scheme of the invention, the bearing mechanism is composed of a plurality of adjusting columns, the adjusting columns are arranged at the front end of the first pipe symmetrically from top to bottom, and a constant distance is arranged between the adjusting columns.

As a further scheme of the invention, the distance adjusting mechanism is an F-shaped adjusting plate, the bottom of the adjusting plate is connected with the front end of the second pipe and is arranged in a bilateral symmetry manner, and the inner surface of the upper part of the adjusting plate is clamped on the outer surface of the adjusting column.

As a further aspect of the present invention, the bearing mechanism is a nut, which is symmetrically disposed, one on each side.

As a further scheme of the invention, the distance adjusting mechanism comprises a mounting plate and adjusting screws, the mounting plate and the adjusting screws are arranged at the front end of the outer part of the second pipe and are arranged symmetrically left and right, and the adjusting screws are connected with the nuts.

As a further aspect of the present invention, the separation position of the first tube and the second tube is located at a working channel in the pipe body, and the working channel is equally divided into two along the axis thereof.

As a further aspect of the invention, the endoscope channel is integrated on the second tube.

Has the advantages that:

(1) by applying the invention, the design of the whole tube body conforms to the three-dimensional anatomical structure of a Kamb i n triangle (a safe triangle working area), so that the extra damage to a patient in the placing process is reduced, and the safety is improved;

(2) by applying the invention, the visual whole-process driving into the intervertebral fusion cage is realized, the operation is simpler, more convenient and more flexible, and the operation difficulty is reduced;

(3) by applying the invention, the operation channel is expanded in the operation, the unnecessary use of the expandable vertebral body fusion cage is reduced, and the efficiency and the success rate of the spinal operation are improved.

Drawings

FIG. 1 is a schematic structural diagram 1 according to example 1 of the present invention;

FIG. 2 is a schematic structural diagram 2 according to embodiment 1 of the present invention;

FIG. 3 is an enlarged view of part A of example 1 of the present invention;

FIG. 4 is a schematic structural diagram 1 according to embodiment 2 of the present invention;

FIG. 5 is a schematic structural diagram of example 2 of the present invention;

FIG. 6 is an enlarged partial view of the section B in example 2 of the present invention;

FIG. 7 is a schematic structural diagram 1 according to example 3 of the present invention;

FIG. 8 is a schematic structural view of example 3 of the present invention, FIG. 2;

fig. 9 is a partially enlarged view of the point C in embodiment 3 of the present invention.

Description of reference numerals:

1-tube, 11-working channel, 12-endoscope channel;

2-interlayer;

3-a first pipe, 31-a bearing mechanism, 311-an adjusting column and 312-a nut;

4-a second pipe, 41-a distance adjusting mechanism, 411-an adjusting plate, 412-a mounting plate and 413-an adjusting screw;

5-handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a split type binary channels working sleeve, this working sleeve have body 1 and intermediate layer 2, body 1 is the uncovered cavity body 1 in both ends, it is inside that intermediate layer 2 arranges in, this intermediate layer 2 intercommunication the tip and the afterbody of body 1 to with body 1 inside split into two independent passageways, for working channel 11 and scope passageway 12, body 1 is disconnect-type body 1, splits into two parts along its axis, is first tubular product 3 and second tubular product 4 respectively, be equipped with on the first tubular product 3 and bear mechanism 31, be equipped with on the second tubular product 4 with the roll adjustment mechanism 41 that bears mechanism 31 corresponds, adjust the distance that opens and shuts between the two through the cooperation between bearing mechanism 31 and the roll adjustment mechanism 41 between first tubular product 3 and the second tubular product 4.

As a further scheme of the present invention, the bearing mechanism 31 is composed of a plurality of adjusting columns 311, the plurality of adjusting columns 311 are symmetrically disposed at the front end of the first tube 3 from top to bottom, and a constant distance is set between the adjusting columns 311.

As a further aspect of the present invention, the distance adjusting mechanism 41 is an "F" shaped adjusting plate 411, the bottom of the adjusting plate 411 is connected to the front end of the second tube 4, and is arranged symmetrically, and the inner surface of the upper portion thereof is clamped to the outer surface of the adjusting column 311.

As a further aspect of the present invention, the bearing mechanism 31 is a nut 312, which is symmetrically disposed, one on each side.

As a further aspect of the present invention, the distance adjusting mechanism 41 includes a mounting plate 412 and an adjusting screw 413, the mounting plate 412 and the adjusting screw 413 are disposed at the front end of the exterior of the second tube 4, and are symmetrically disposed, and the adjusting screw 413 is connected to the nut 312.

As a further development of the invention, the separation position of the first tube 3 and the second tube 4 is located at a working channel 11 in the tubular body 1, and equally divides the working channel 11 in two along its axis.

As a further aspect of the invention, the endoscope channel 12 is integrated on the second tube 4.

The working principle of the invention is further explained below with reference to fig. 1-9:

example 1

Referring to fig. 1-3, the tube body 1 is a hollow cylinder with two open ends, and the middle part is provided with an interlayer 2, and the interlayer 2 is communicated with the first end and the last end of the tube body 1 and divides the tank body into a working channel 11 and an endoscope channel 12.

The tube body 1 is of a separate type, the separate cut is positioned at the axis of the working channel 11 and is divided into two parts along the axis, one part is called as a first tube 3, the other part is called as a second tube 4, and the second tube 4 is integrated with the endoscope channel 12. The front end, the left side and the right side of the first pipe 3 are respectively provided with a plurality of adjusting columns 311 which are arranged at equal intervals, and the adjusting columns 311 are arranged in a shape like a Chinese character '1'. And F-shaped adjusting plates 411 corresponding to the adjusting columns 311 are respectively arranged at the front section, the left side and the right side of the second pipe 4, and the bottoms of the adjusting plates 411 are fixed on the outer surface of the second pipe 4 through pin shafts and can axially rotate along the pin shafts. When the expansion joint is used, the F-shaped adjusting plate 411 is clamped on different adjusting columns 311, and the purpose of controlled vertical expansion between the first pipe 3 and the second pipe 4 can be achieved.

Example 2

Referring to fig. 4-6, nuts 312 are disposed on two sides of the front outer surface of the first tube 3, the nuts 312 are connected to the first tube 3 by pins (not shown), and the nuts 312 can be angularly adjusted along the pins. And the mounting plates 412 corresponding to the nuts 312 are arranged on the two sides of the outer surface of the front end of the second pipe 4, the mounting plates 412 are provided with adjusting screws 413, and the mounting plates 412 are connected with the nuts 312 through the adjusting screws 413. When the device is used, the purpose of adjusting the controlled up-and-down expansion between the first pipe 3 and the second pipe 4 can be realized through the rotation of the adjusting screw 413.

Example 3

Referring to fig. 7-9, the separation position of the first tube 3 and the second tube 4 is cut from top to bottom along the central axis of the working channel, so that the first tube 3 and the second tube 4 are separated from each other left and right, and the adjusting columns 311 are symmetrically arranged left and right and are respectively arranged at the top and the bottom of the front end of the first tube 3. The top and the bottom of the front end of the second tube 4 are provided with adjusting plates 411 corresponding to the adjusting columns 311, and the adjusting plates 411 are also F-shaped and can be clamped on the adjusting columns 311. When the sleeve works, the first tubular product 3 and the second tubular product 4 can be separated from each other left and right.

Finally, it is worth noting that in order to facilitate the use of the sleeve, in the solution disclosed in the present embodiment, the first end of the second tube 4 is fixedly connected with the handle 5. In order to facilitate the handheld operation in the operation, a through hole for facilitating the movement of the first tube 3 is formed in the handle 5, and the through hole is larger than the maximum offset of the first tube 3. It should be noted that, when the sleeve is used, the sleeve is used together with other constraint equipment, so that the tail part of the separation part of the first tubular product 3 and the second tubular product 4 does not need to be additionally provided with a constraint mechanism.

Claims

1. The utility model provides a split type binary channels working sleeve, this working sleeve have body and intermediate layer, the body is the uncovered cavity body in both ends, inside it is arranged in to the intermediate layer, this intermediate layer intercommunication the tip and the afterbody of body to with the body is inside to be cut apart into two independent passageways, for working channel and scope passageway, its characterized in that: the pipe body is a separated pipe body, the pipe body is divided into two parts along the axis of the pipe body, the two parts are respectively a first pipe and a second pipe, the first pipe is provided with a bearing mechanism, the second pipe is provided with a distance adjusting mechanism corresponding to the bearing mechanism, and the opening and closing distance between the first pipe and the second pipe is adjusted through the matching between the bearing mechanism and the distance adjusting mechanism.

2. The split dual channel working sleeve of claim 1, wherein: the bearing mechanism is composed of a plurality of adjusting columns, the adjusting columns are arranged in a plurality of numbers and are symmetrically arranged at the front end of the first pipe from top to bottom, and a constant distance is arranged between the adjusting columns.

3. The split dual channel working sleeve of claim 1 or 2, wherein: the roll adjustment mechanism is an F-shaped adjusting plate, the bottom of the adjusting plate is connected with the front end of the second pipe and is arranged in a bilateral symmetry mode, and the inner surface of the upper portion of the adjusting plate is connected with the outer surface of the adjusting column in a clamping mode.

4. The split dual channel working sleeve of claim 1, wherein: the bearing mechanisms are nuts which are symmetrically arranged, and one bearing mechanism is arranged on each side.

5. The split dual channel working sleeve of claim 1 or 4, wherein: the roll adjustment mechanism contains mounting panel and adjusting screw, the outside front end of second tubular product is arranged in to mounting panel and adjusting screw, and bilateral symmetry sets up, adjusting screw connects the nut.

6. The split dual channel working sleeve of claim 1, wherein: the separation position of the first pipe and the second pipe is positioned at a working channel in the pipe body, and the working channel is equally divided into two parts along the axis of the working channel.

7. The split dual channel working sleeve of claim 1, wherein: the endoscope channel is integrated on the second tube.