CN219629580U - Endoscopic cannula and intervertebral foramen mirror device - Google Patents

Abstract

The utility model relates to an endoscopic cannula and an intervertebral foramen mirror device. The endoscope sleeve comprises a tube body and a window tube, wherein the tube body comprises a first end and a second end which are oppositely arranged along the axial direction, a handheld part is arranged at the first end, the second end is detachably connected with the window tube, the inner diameter of the window tube is equal to that of the tube body, the window tube and the inside of the tube body form a channel, the channel is used for allowing an endoscope to pass through, the window tube comprises a transparent material, and the ratio of the length of the window tube to the length of the tube body is less than 1:6.

Description

Endoscopic cannula and intervertebral foramen mirror device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an endoscopic cannula and an intervertebral foramen mirror device.

Background

In the prior art, the endoscope sleeve is typically made of an opaque metallic material. The passage of the endoscope sleeve is used for passing the endoscope. In the case of an intervertebral operation, intraoperative hemorrhage can affect the operator's view of the underlying tissue structure. Hemostasis is typically required. But bleeding out of the endoscope cannula is often not easily observed, thereby affecting the progress of the procedure.

Therefore, a new technical solution is needed to solve the above technical problems.

Disclosure of Invention

An object of the present utility model is to provide a new technical solution for an endoscope sleeve.

According to a first aspect of the present utility model, an endoscopic cannula is provided. The inner diameter sleeve comprises a pipe body and a window pipe, wherein the pipe body comprises a first end and a second end which are oppositely arranged along the axial direction, a handheld part is arranged at the first end, the second end is detachably connected with the window pipe, the inner diameter of the window pipe is equal to that of the pipe body, a channel is formed between the window pipe and the inside of the pipe body, the channel is used for allowing an endoscope to pass through, the window pipe comprises a transparent material, and the ratio of the length of the window pipe to the length of the pipe body is less than 1:6.

Optionally, an external thread is provided on an outer surface of one of the tube body and the window tube, and an internal thread is provided on an inner surface of the other of the tube body and the window tube, and the external thread and the internal thread form a threaded connection.

Optionally, a chute is provided on an outer surface of one of the tube body and the window tube, the chute includes a first chute extending circumferentially and a second chute located at a side portion of the first chute, the first chute is communicated with the second chute, an opening communicated with one end of the second chute is provided on an end face of the second end, a protrusion is provided on an inner surface of the other of the tube body and the window tube, and the protrusion passes through the second chute and is clamped in the first chute.

Optionally, the first chute forms an interference fit with the protrusion.

Optionally, a plane mirror or a magnifying glass is arranged on the window tube.

Optionally, the window tube includes an annular frame, a plurality of windows are provided on the annular frame, and transparent materials are embedded in the windows.

Optionally, the length of the window tube is 0.5 cm to 2 cm.

Optionally, the endoscope sleeve further comprises a protection ring, the protection ring is connected with the window tube, the protection ring is located on one side of the window tube opposite to the tube body, the inner diameter of the window tube is equal to the inner diameter of the protection ring, and the hardness of the protection ring is greater than that of the window tube.

Optionally, the transparent material is glass, transparent resin or transparent metal.

According to a second aspect of the present utility model, an intervertebral foramen mirror device is provided. The intervertebral foramen device comprising an endoscope and an endoscope sleeve as claimed in any one of the preceding claims, said endoscope being passable through said channel.

The utility model has the technical effects that through the detachable connection between the tube body and the window tube, an operator can select the matched window tube according to different conditions of patients so as to be matched with the used tube body, and the suitability of the window tube is improved. And the length of the window tube is smaller than that of the tube body, so that the operator can intensively observe the tissue of the required monitoring part, and the influence on the sight of the operator due to overlarge visual area is avoided.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.

Fig. 2 is a schematic cross-sectional view of a threaded connection according to an embodiment of the present utility model.

Fig. 3 is an enlarged partial cross-sectional schematic view of a threaded connection according to an embodiment of the present utility model.

Fig. 4 is a schematic cross-sectional view of a chute according to an embodiment of the utility model.

Fig. 5 is an enlarged partial cross-sectional view of a chute connection according to an embodiment of the utility model.

FIG. 6 is a schematic cross-sectional view of a view tube in the form of an annular frame in accordance with an embodiment of the present utility model.

FIG. 7 is an enlarged partial cross-sectional view of a view tube as an annular frame in accordance with an embodiment of the present utility model.

FIG. 8 is a schematic cross-sectional view of a window tube with a protective ring in accordance with an embodiment of the present utility model.

In the figure, 1-tube body; 11-a first end; 12-a second end; 13-a hand-held part; 2-a window tube; 21-external threads; 22-internal threads; 23-sliding grooves; 231-a first chute; 232-a second chute; 24-bulge; 25-magnifier; 26-an annular frame; 27-windowing; 3-channel; 4-an endoscope; and 5-protecting ring.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

The embodiment of the utility model provides an endoscope sleeve. The endoscope sleeve comprises a tube body 1 and a window tube 2. The tube body 1 comprises a first end 11 and a second end 12 arranged axially opposite each other. A hand-held portion 13 is provided at the first end 11. At said second end 12 a view tube 2 is detachably connected. The inner diameter of the window tube 2 is equal to the inner diameter of the tube body 1. A channel 3 is formed between the window tube 2 and the inside of the tube body 1. The channel 3 is used for passing an endoscope 4. The view tube 2 comprises a transparent material. The ratio of the length of the window tube 2 to the length of the tube body 1 is less than 1:6.

As shown in fig. 1, a grip 13 is provided at the first end 11 of the tube body 1. The hand-holding portion 13 has an I-shape, an X-shape, a cross-shape, or the like, which is convenient to hold. The holding part 13 is provided with an opening communicated with the tube body 1 for the endoscope 4 to enter the tube body 1. At the second end 12 of the tube body 1, i.e. at the end of the tube body 1 opposite to the grip 13, a view tube 2 is connected. The inner diameter of the window tube 2 is equal to the inner diameter of the tube body 1, so that the problem of unsmooth movement such as blocking in the process of moving the endoscope 4 in the channel 3 is avoided. The window tube 2 is made of transparent materials so as to observe the tissue structure under the endoscope when the endoscope 4 is used, and stop bleeding in time when the bleeding position is found, thereby reducing bleeding and providing a clear view for operation.

The length of the window tube 2 is smaller than the tube body 1. When in use, the local tissue can be observed and treated through the window tube 2, so that a large-area visual range is avoided, and the operator is prevented from intensively observing the local tissue.

Of course, the hand-held portion 13 is not limited to the above structure in the embodiment of the present utility model, and those skilled in the art can set the hand-held portion according to actual needs.

In one example, an external thread 21 is provided on the outer surface of one of the tube body 1 and the sight tube 2, and an internal thread 22 is provided on the inner surface of the other of the tube body 1 and the sight tube 2, the external thread 21 and the internal thread 22 forming a threaded connection.

As shown in fig. 2 to 3, the tube body 1 and the window tube 2 are detachably connected by screw threads. An external thread 21 is provided on the outer surface of the second end 12 of the tube body 1. An internal thread 22 is provided at one end of the window tube 2, i.e. the end connected to the tube body 1 is provided with an internal thread 22 matching the external thread 21. The window tube 2 can be detachably connected with the second end 12 of the tube body 1 by rotating. Or the rotary tube body 1 can be detachably connected with the window tube 2. Or, still alternatively, the tube body 1 and the window tube 2 are rotated at the same time, so that the detachable connection of the tube body 1 and the window tube 2 can be realized.

Of course, the threaded connection is not limited to the above structure in the embodiment of the present utility model, and those skilled in the art can set the threaded connection according to actual needs. For example, the external thread 21 is provided on the window tube 2, and the internal thread 22 matching the external thread 21 is provided on the tube body 1, thereby realizing the detachable connection of the window tube 2 and the tube body 1.

In one example, a chute 23 is provided on the outer surface of one of the tube body 1 and the view tube 2, the chute 23 includes a first chute 231 extending circumferentially and a second chute 232 located at the side of the first chute 231, the first chute 231 communicates with the second chute 232, an end surface of the second end 12 is provided with an opening communicating with one end of the second chute 232, a protrusion 24 is provided on the inner surface of the other of the tube body 1 and the view tube 2, and the protrusion 24 passes through the second chute 232 and is engaged in the first chute 231.

As shown in fig. 4 to 5, the tube body 1 and the window tube 2 are detachably connected through a chute 23. A protrusion 24 is provided on the outer surface of the second end 12 of the tube body 1. A chute 23 is provided at one end of the view tube 2. The chute 23 is L-shaped. The pipe body 1 is rotated so that the boss 24 corresponds in position to the first slide groove 231. The push tube body 1 moves toward the view tube 2, and thus the protrusion 24 moves along the first chute 231. When the projection 24 moves to the opening position where the first chute 231 communicates with the second chute 232, the window tube 2 is rotated. The projection 24 moves in the direction of the second runner 232. Thereby realizing the detachable connection of the window tube 2 and the tube body 1.

Of course, the connection of the chute 23 in the embodiment of the present utility model is not limited to the above-described structure, and those skilled in the art can set the connection according to actual needs. For example, the projection 24 is provided on the window tube 2, and the chute 23 is provided on the tube body 1, thereby realizing the detachable connection of the window tube 2 and the tube body 1.

Of course, the shape of the chute 23 in the embodiment of the present utility model is not limited to the L-shape described above, and may be configured to be, for example, T-shape, J-shape, Z-shape, etc., and those skilled in the art may configure the chute according to actual needs.

In one example, the first runner 231 forms an interference fit with the boss 24.

As shown in fig. 4 to 5, when the window tube 2 is fixed, the protrusion 24 of the tube body 1 moves along the first slide groove 231, the first slide groove 231 is engaged with the protrusion 24, and the first slide groove 231 plays a role of guiding the protrusion 24. When the protrusion 24 slides to the opening position where the first sliding groove 231 communicates with the second sliding groove 232, the pipe body 1 is rotated, the protrusion 24 slides into the second sliding groove 232, and the second sliding groove 232 cooperates with the protrusion 24. The second sliding groove 232 plays a role of preventing the window tube 2 from being separated from the tube body 1. And the first sliding groove 231 forms interference fit with the protrusion 24, so that the window tube 2 can be secondarily prevented from being separated from the tube body 1.

When the protrusion 24 is located in the second sliding groove 232, the protrusion 24 is prevented from sliding out of the sliding groove 23, and the situation that the tube body 1 is separated from the window tube 2 is avoided, so that double-layer protection is formed.

In one example, a plane mirror or magnifying glass 25 is provided in the view tube 2.

As shown in fig. 1, 2 and 4 to 8, a magnifying lens 25 may be provided on the view tube 2 to facilitate more clear viewing and treatment of the details of the tissue surrounding the endoscope sleeve during surgery. The view tube 2 can also be arranged to be plane or change the refractive angle of the structure of the edge view tube 2 so as to more truly visualize the real imaging of the surrounding tissue outside the endoscope sleeve.

The functional lenses such as the plane mirror or the magnifying lens 25 can be inlaid on the window tube 2, or the functional lenses such as the plane mirror or the magnifying lens 25 and the window tube 2 can be manufactured into a whole during manufacturing of the window tube 2.

Of course, the view tube 2 in the embodiment of the present utility model is not limited to the above-described structure, and those skilled in the art can set the view tube according to actual needs.

In one example, the window tube 2 includes an annular frame 26, and a plurality of windows 27 are provided on the annular frame 26, and a transparent material is embedded in the windows 27.

As shown in fig. 6 to 7, an annular frame 26 with transparent material is connected to the second end 12 of the tube body 1. The inside of the annular frame 26 forms a channel 3 with the inside of the tube body 1. As the endoscope 4 enters the passageway 3, the endoscope 4 may then view and treat details of the tissue surrounding the endoscope sleeve through the transparent material on the annular frame 26. An annular frame 26 with transparent material is connected to the tube body 1 to provide the operator with a wide surgical field, thus reducing the difficulty of the operation.

In one example, the length of the view tube 2 is 0.5 cm to 2 cm.

As shown in fig. 1 to 8, the length of the window tube 2 is smaller than the length of the tube body 1. The view tube 2 may be designed as a replaceable or detachable extension tube. The window tube 2 can also be designed as a working sleeve which is not detachable and is in an integrated structure with the tube body 1.

Of course, the length of the window tube 2 in the embodiment of the present utility model is not limited to the above-mentioned dimensions, and those skilled in the art can set the length according to actual needs. The ratio of the length of the window tube 2 to the length of the tube body 1 is less than 1:6.

In one example, the endoscope sleeve further comprises a protection ring 5, the protection ring 5 is connected with the view tube 2, the protection ring 5 is located on the side of the view tube 2 opposite to the tube body 1, the inner diameter of the view tube 2 is equal to the inner diameter of the protection ring 5, and the hardness of the protection ring 5 is greater than that of the view tube 2.

As shown in fig. 8, the window tube 2 is connected to the tube body 1 on one side and to the protection ring 5 on the other side. The inner diameter of the protection ring 5, the inner diameter of the view tube 2 and the inner diameter of the tube body 1 are equal to avoid the problem of unsmooth movement of the endoscope 4 in the process of moving in the channel 3.

The protection ring 5 is a metal pipe with the diameter of 1mm-3 mm. The hardness of the protection ring 5 is larger than that of the window tube 2, so that the window tube 2 is protected, and the risk of damage to the instrument is reduced.

Of course, the material and length of the protection ring 5 in the embodiment of the present utility model are not limited to the above, and those skilled in the art can set the protection ring according to actual needs.

In one example, the transparent material is glass, transparent resin, or transparent metal.

Of course, the transparent material in the embodiment of the present utility model is not limited to the above materials, and those skilled in the art can set the transparent material according to actual needs. The transparent material may be any transparent material that is hard and has good light transmittance, for example, plastic or the like.

In another example, an embodiment of the present utility model provides an intervertebral foramen mirror device. The intervertebral foramen mirror device comprises an endoscope 4 and an endoscope sleeve according to any of the preceding claims, said endoscope 4 being passable through said channel 3.

As shown in fig. 1, the endoscope 4 penetrates through the inside of the tube body 1 into the view tube 2, and the surrounding tissue outside the endoscope sleeve is observed through the view tube 2. The magnifying glass 25 on the viewing tube 2 can provide more detailed tissue conditions for the operator to facilitate treatment of the patient and reduce the difficulty of the operation.

The foregoing embodiments mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in consideration of brevity of line text, no further description is given here.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (10)

1. An endoscope sleeve, comprising: pipe body (1) and window pipe (2), pipe body (1) are including setting up first end (11) and second end (12) relatively along the axial first end (11) is provided with handheld portion (13) second end (12) detachably is connected with window pipe (2), the internal diameter of window pipe (2) with the internal diameter of pipe body (1) equals window pipe (2) with the inside of pipe body (1) constitutes passageway (3), passageway (3) are used for supplying scope (4) to pass through, window pipe (2) include transparent material, the length of window pipe (2) with the ratio of the length of pipe body (1) is less than 1:6.

2. An endoscope sleeve according to claim 1, characterized in that an external thread (21) is provided on the outer surface of one of the tube body (1) and the viewing tube (2), and an internal thread (22) is provided on the inner surface of the other of the tube body (1) and the viewing tube (2), said external thread (21) constituting a threaded connection with said internal thread (22).

3. An endoscope sleeve according to claim 1, characterized in that a chute (23) is provided at the outer surface of one of the tube body (1) and the view tube (2), the chute (23) comprising a first chute (231) extending circumferentially and a second chute (232) located at the side of the first chute (231), the first chute (231) being in communication with the second chute (232), the end face of the second end (12) being provided with an opening in communication with one end of the second chute (232), a protrusion (24) being provided at the inner surface of the other of the tube body (1) and the view tube (2), the protrusion (24) being via the second chute (232) and being snapped into the first chute (231).

4. An endoscope sleeve according to claim 3, characterized in that the first runner (231) forms an interference fit with the protrusion (24).

5. An endoscope sleeve according to claim 1, characterized in that a plane mirror or magnifying glass (25) is provided in the view tube (2).

6. An endoscope sleeve according to claim 1, characterized in that the view tube (2) comprises an annular frame (26), a plurality of windows (27) being provided on the annular frame (26), a transparent material being embedded in the windows (27).

7. An endoscope sleeve according to claim 1, characterized in that the length of the view tube (2) is 0.5 cm to 2 cm.

8. An endoscope sleeve according to any of claims 1-7, characterized in that it further comprises a protection ring (5), said protection ring (5) being connected to said view tube (2), said protection ring (5) being located on the opposite side of said view tube (2) from said tube body (1), the inner diameter of said view tube (2) being equal to the inner diameter of said protection ring (5), the hardness of said protection ring (5) being greater than the hardness of said view tube (2).

9. The endoscope sleeve of any one of claims 1-7 wherein said transparent material is glass, transparent resin or transparent metal.

10. An intervertebral foramen mirror device, characterized by comprising an endoscope (4) and an endoscope sleeve according to any of claims 1-9, the endoscope (4) being passable through the channel (3).