CN213309614U

CN213309614U - Backbone endoscope working sleeve

Info

Publication number: CN213309614U
Application number: CN202022125403.2U
Authority: CN
Inventors: 杜传超; 刘晓光; 祝斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-06-01
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses a backbone endoscope work sleeve pipe, including body, tractive device and the device that contracts of expanding, the one end of body is located to the device that contracts of expanding, specifically include along the even a plurality of movable plate that sets up of body circumference, each the movable plate is articulated with the body respectively, tractive device is used for driving each movable plate and rotates around the hinge point to make each movable plate all strut and constitute loudspeaker form jointly, or all draw in and constitute the toper jointly, through setting up body, tractive device and the device that contracts of expanding, only need operate tractive device just can expand the field of vision scope and the operating space of implementing the in-process through the device that contracts of expanding when can will implementing the MISS technique, with improvement operating personnel's work efficiency.

Description

Backbone endoscope working sleeve

Technical Field

The utility model relates to a backbone scope technical field, concretely relates to backbone endoscope work sleeve pipe.

Background

Since the 80 s of the 20 th century, the Minimally Invasive Spine Surgery (MISS) technology has been rapidly developed and widely applied and approved in the industry, bringing about a boon to millions of patients with spine diseases worldwide, and the technology will lead the trend of future development of the spine surgery field. The MISS technique requires the spinal surgeon to complete the entire surgical procedure through the smallest possible surgical incision, using minimally invasive surgical instruments and devices, with the aid of imaging equipment, in order to achieve the goals of reducing the incision, reducing tissue trauma and bleeding, improving the operation accuracy and accelerating the postoperative rehabilitation. Compared with the traditional open surgery, the MISS technology can obviously reduce the amount of bleeding, reduce tissue trauma, reduce the incidence of infection, save medical expenses, relieve the pain of patients, promote postoperative recovery, shorten hospitalization time and recover the motion function of the spine as much as possible.

The minimally invasive spinal working channel is a necessary tool for completing the MISS technology, and can provide an effective operation space for the MISS technology, ensure that the operation is successfully completed in a relatively narrow space, and further reduce the damage to surrounding tissues as much as possible. The tubular working sleeve provides a working channel for the MISS technology, and an operation approach is obtained by splitting muscles, so that the damage to soft tissues such as peripheral muscles and the like can be obviously reduced, the hospitalization time is shortened, and the occurrence of postoperative pain is reduced.

In the implementation process of the existing MISS technology, due to the fact that the operation space and the visual field are limited, the operation radius is generally not more than 1cm, in a narrow space, important structures such as nerve roots, dura mater and blood vessels exist, a retracting device under an endoscope is lacked, operation risks are increased, and operation under the endoscope is limited.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a backbone endoscope work sleeve pipe to enlarge visual field scope and operating space among the implementation process, in order to improve work efficiency.

The technical scheme of the utility model is specifically as follows:

the utility model provides a backbone endoscope work sleeve pipe, includes body, tractive device and expands the device that contracts, the one end of body is located to the device that contracts that expands specifically includes along a plurality of movable plate that body circumference evenly set up, each the movable plate is articulated with the body respectively, tractive device is used for driving each movable plate and rotates around the hinge point to make each movable plate all strut and constitute loudspeaker form jointly, or all draw in and constitute the toper jointly.

Preferably, the movable plate specifically includes long limit and minor face, and the end and the body inner wall of minor face are articulated, be equipped with the contained angle between long limit and the minor face.

Preferably, the traction device includes drive arrangement, go-between and a plurality of traction unit, traction unit and activity piece one-to-one, every traction unit all includes pull rod and connecting piece, the one end of connecting piece is articulated with the long limit of activity piece, and the other end is articulated with the one end that the pull rod is close to the activity piece, each the pull rod sets up and rather than fixed connection along go-between circumference, drive arrangement is used for driving the go-between along body length direction motion.

Preferably, drive arrangement is including the rotating member, connecting rod and the rotating part that connect gradually, the surface of rotating member is equipped with the external screw thread, jar internal wall is provided with the internal thread, external screw thread and internal thread match each other, the rotating member cover is established outside the go-between and is connected through the bearing rather than, the connecting rod extends outside the body with the one end that the rotating part is connected, rotating part, connecting rod, rotating member and go-between coaxial setting to be provided with the through-hole along the axis, the through-hole is used for supplying the backbone endoscope to pass through.

Preferably, the rotating portion has an outer diameter larger than an inner diameter of the tubular body.

Preferably, each pull rod is arranged along the circumferential direction of the inner wall of the pipe body, a guide ring is arranged on the inner wall of the pipe body, the guide ring is fixedly connected with the inner wall of the pipe body and used for guiding the pull rod, and the pull rod is connected with the guide ring in a sliding manner.

Preferably, the number of the movable pieces is set to be 6-10.

Preferably, the thickness of the movable plate is 2 mm.

Preferably, the movable plate is made of stainless steel, and the edge of the movable plate is round and smooth.

Preferably, the length of the movable piece is 1/4-1/5 of the length of the tube body.

The beneficial effects of the utility model are embodied in:

the utility model provides a spinal endoscope working sleeve is through setting up body, tractive device and expanding the device that contracts, only need operate the tractive device just can enlarge visual field scope and operating space in the implementation through expanding the device that contracts when can will implementing the MISS technique to improve operating personnel's work efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a working sleeve of a spinal endoscope provided in an embodiment of the present invention in a folded state;

fig. 2 is a schematic structural view of the spinal endoscope working sleeve in an unfolded state according to the embodiment of the present invention;

FIG. 3 is a schematic structural view of a connection ring of a working sleeve of a spinal endoscope provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a driving device of a working sleeve of a spinal endoscope according to an embodiment of the present invention;

in the attached drawing, the device comprises a pipe body 1, a movable sheet 2, a connecting ring 3, a pull rod 4, a connecting piece 5, a rotating piece 6, a connecting rod 7, a rotating part 8, a through hole 9, a guide ring 10 and a bearing 11.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

The embodiment provides a backbone endoscope working sleeve, as shown in fig. 1-2, which comprises a tube body 1, a traction device and a contraction and expansion device, wherein the contraction and expansion device is arranged at one end of the tube body 1, and specifically comprises a plurality of movable sheets 2 uniformly arranged along the circumferential direction of the tube body 1, each movable sheet 2 is hinged to the tube body 1, and the traction device is used for driving each movable sheet 2 to rotate around a hinge point, so that each movable sheet 2 is unfolded to jointly form a horn shape, or folded to jointly form a cone shape.

It should be noted that, in the initial state, as shown in fig. 1, each movable plate 2 is in a folded state, one end of the expansion and contraction device of the working sleeve is inserted into the spinal incision, then the traction device is slowly operated to make each movable plate 2 rotate around its own hinge point at the same time until each movable plate 2 is unfolded to form a horn shape, as shown in fig. 2, the function of unfolding nearby tissues to expand the visual field and the operation space is achieved, then the spinal endoscope is inserted into the tube body 1, and is fixed by the fixing device when reaching a proper position.

In the present embodiment, the movable piece 2 specifically includes a long side and a short side, the end of the short side is hinged to the inner wall of the tube 1, the end of the long side extends out of the tube 1, an included angle is provided between the long side and the short side, the included angle is preferably an acute angle, and forms a "check mark" shape, and is further preferably 30 °, and the pulling device is preferably hinged to the intersection point of the long side and the short side of the "check mark" shape, so that when the pulling device moves up and down, the movable piece 2 can be driven.

In this embodiment, the pulling device includes drive arrangement, go-between 3 and a plurality of pulling unit, as shown in fig. 3, pulling unit and activity piece 2 one-to-one, every pulling unit all includes pull rod 4 and connecting piece 5, the one end of connecting piece 5 is articulated with the long limit of activity piece 2, the other end is articulated with the one end that pull rod 4 is close to activity piece 2, each pull rod 4 sets up and rather than fixed connection along 3 circumferences of go-between, drive arrangement is used for driving go-between 3 along the motion of body 1 length direction. When the connecting ring 3 moves up and down in the tube body 1, the pull rods 4 are driven to move up and down together, and the movable plate 2 can be driven to rotate.

In this embodiment, as shown in fig. 4, the driving device may include a rotating member 6, a connecting rod 7 and a rotating portion 8, which are connected in sequence, wherein an external thread is disposed on an outer surface of the rotating member 6, an internal thread is disposed on an inner wall of the tank body, the external thread and the internal thread are matched with each other, the rotating member 6 is sleeved outside the connecting ring 3 and is connected with the connecting ring through a bearing 11, one end of the connecting rod 7 connected with the rotating portion 8 extends out of the pipe body 1, the rotating portion 8, the connecting rod 7, the rotating member 6 and the connecting ring 3 are coaxially disposed, and a through hole 9 is disposed along. The outer diameter of the rotating portion 8 is larger than the inner diameter of the tubular body 1.

It should be noted that, in the initial state, each movable plate 2 is in the folded state, one end of the expansion and contraction device of the working sleeve is inserted into the spine incision, then the rotating part 8 is rotated, the rotating part 8 drives the connecting rod 7 and the rotating part 6 to rotate, since the rotary member 6 is screwed to the inner wall of the tube body 1, the rotary member 6 is displaced up and down in the tube body 1 during the rotation, because the rotating member 6 is rotatably connected with the connecting ring 3 through the bearing 11, the rotating member 6 does not drive the connecting ring 3 to rotate along with the rotating member, but the rotating part 6 can drive the connecting ring 3 to move up and down, when the connecting ring 3 moves down, the pull rods 4 are driven to move down, so that the movable sheets 2 rotate until the movable sheets 2 are expanded to jointly form a horn shape, the effect of expanding nearby tissues to expand the visual field range and the operation space is achieved, and then the spinal endoscope extends into the tube body 1 and is fixed through the fixing device when reaching a proper position.

In this embodiment, each pull rod 4 is arranged along the circumferential direction of the inner wall of the pipe body 1, the inner wall of the pipe body 1 is provided with a guide ring 10, the guide ring 10 is fixedly connected with the inner wall of the pipe body 1 and used for guiding the pull rod 4, and the pull rod 4 is slidably connected with the guide ring 10. The specific guide ring 10 can be provided in plurality, so that each pull rod 4 corresponds to one guide ring 10, or only one large guide ring 10 can be provided, and the outer diameter of the guide ring 10 is about the length obtained by subtracting the outer diameters of the two pull rods 4 from the inner diameter of the pipe body 1. The function of the guide ring 10 is to prevent the pull rod 4 from being skewed at will.

In this embodiment, the number of the movable plates 2 is set to 6-10, which can be specifically set according to the size of the tube body 1, and only after each movable plate 2 is supported into a horn shape, the tube body can support surrounding tissues well, so as to expand the visual field range of the endoscope and the operation space of medical staff. The thickness of the movable plate 2 is preferably 2mm to achieve a good supporting effect. The material preference of activity piece 2 is stainless steel, has certain mechanical strength, and the edge is blunt and smooth to prevent that the edge is sharp to cause the injury to the organizational structure in the motion process. Preferably, the length of the movable plate 2 is 1/4-1/5 of the length of the tube body 1, the length is too short to achieve the purpose of expanding the visual field range of the endoscope and the operation space of medical staff, and the length is too long, which may enlarge the wound.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A spinal endoscope working sleeve is characterized in that: the pipe comprises a pipe body, a traction device and an expansion and contraction device, wherein the expansion and contraction device is arranged at one end of the pipe body and specifically comprises a plurality of movable sheets which are uniformly arranged along the circumferential direction of the pipe body, the movable sheets are respectively hinged with the pipe body, and the traction device is used for driving the movable sheets to rotate around a hinge point so that the movable sheets are all unfolded to jointly form a horn shape or are all folded to jointly form a cone shape.

2. A spinal endoscope working cannula according to claim 1 and characterized by: the movable piece specifically includes long limit and minor face, and the end and the body inner wall of minor face are articulated, be equipped with the contained angle between long limit and the minor face.

3. A spinal endoscope working cannula according to claim 2 and also characterized by: the traction device comprises a driving device, a connecting ring and a plurality of traction units, the traction units correspond to the movable sheets one by one, each traction unit comprises a pull rod and a connecting piece, one end of each connecting piece is hinged to the long edge of each movable sheet, the other end of each connecting piece is hinged to one end, close to each movable sheet, of each pull rod, each pull rod is arranged along the circumferential direction of the connecting ring and is fixedly connected with the connecting ring, and the driving device is used for driving the connecting ring to move along the length direction of the pipe body.

4. A spinal endoscope working cannula according to claim 3 and characterized by: the driving device comprises a rotating part, a connecting rod and a rotating part which are connected in sequence, wherein an external thread is arranged on the outer surface of the rotating part, an internal thread is arranged on the inner wall of the tube body, the external thread is matched with the internal thread, the rotating part is sleeved outside the connecting ring and is connected with the connecting ring through a bearing, one end of the connecting rod connected with the rotating part extends out of the tube body, the rotating part, the connecting rod, the rotating part and the connecting ring are coaxially arranged, a through hole is formed in the axis, and the through hole is used for allowing the spinal endoscope to.

5. A spinal endoscope working sleeve according to claim 4, characterized in that: the outer diameter of the rotating part is larger than the inner diameter of the pipe body.

6. A spinal endoscope working cannula according to claim 3 and characterized by: each the pull rod sets up along body inner wall circumference, be equipped with the guide ring on the body inner wall, guide ring and body inner wall fixed connection for lead the pull rod, pull rod and guide ring sliding connection.

7. A spinal endoscope working cannula according to claim 6 and also characterized by: the number of the movable sheets is set to be 6-10.

8. A spinal endoscope working cannula according to claim 7 and wherein: the thickness of the movable sheet is 2 mm.

9. A spinal endoscope working cannula according to claim 8 and also characterized by: the movable plate is made of stainless steel, and the edge of the movable plate is round and smooth.

10. A spinal endoscope working cannula according to claim 9 and wherein: the length of the movable piece is 1/4-1/5 of the length of the tube body.