CN219021102U - Endoscope protection tube and endoscope assembly for use in a transfer procedure - Google Patents

Abstract

The application discloses an endoscope protection tube and an endoscope assembly for transferring process, relating to the technical field of medical apparatus and instruments. The protection tube comprises a main body tube section and a front end tube section, wherein the front end tube section is detachably connected to the far end of the main body tube section, the main body tube section is provided with a first tube cavity, the front end tube section is provided with a second tube cavity, the first tube cavity is communicated with the second tube cavity under the condition that the front end tube section is connected to the main body tube section, and the front end tube section is used for accommodating the front end of the insertion part of the endoscope through the second tube cavity. The scheme can avoid the damage of the insertion part in the process of inserting the protection tube.

Description

Endoscope protection tube and endoscope assembly for use in a transfer procedure

Technical Field

The application relates to the technical field of medical instruments, in particular to an endoscope protection tube and an endoscope assembly used in a transferring process.

Background

In diagnosing lesions in a patient, an endoscope is generally required. In a specific use, it is necessary to insert an insertion portion of an endoscope into a patient, and examine a target site (for example, a lesion) by means of a camera, a light source, or the like at the distal end of the insertion portion.

In some endoscope transfer scenes, for example, a transportation process after shipment, a moving process before and after use, and the like, a protection tube needs to be fitted to the outside of the insertion portion in order to prevent the insertion portion of the endoscope from being knocked by foreign objects. However, the insertion portion of the endoscope is easily damaged during insertion of the insertion portion into the protective tube.

Disclosure of Invention

The application provides an endoscope protection tube and an endoscope assembly for a transferring process, which can avoid damage of an inserting part in the process of inserting the protection tube.

In order to solve the problems, the application adopts the following technical scheme:

in a first aspect, embodiments of the present application provide an endoscope protection tube for use in a transfer procedure. The protection tube comprises a main body tube section and a front end tube section, wherein the front end tube section is detachably connected to the far end of the main body tube section, the main body tube section is provided with a first tube cavity, the front end tube section is provided with a second tube cavity, the first tube cavity is communicated with the second tube cavity under the condition that the front end tube section is connected to the main body tube section, and the front end tube section is used for accommodating the front end of the insertion part of the endoscope through the second tube cavity.

In a second aspect, embodiments of the present application further provide an endoscope assembly, including an endoscope and the protection tube according to the first aspect of embodiments of the present application, wherein an insertion portion of the endoscope is inserted into and engaged with the protection tube.

The technical scheme adopted by the embodiment of the application can achieve the following beneficial effects:

in the endoscope protection tube for transferring in-process disclosed in this application embodiment, main part pipeline section and front end pipeline section can dismantle the connection, in the assembly process of insert portion and protection tube, can assemble insert portion and main part pipeline section and front end pipeline section respectively, so, can realize that insert portion assembles in the body that length is shorter to the condition of sending into of insert portion front end in the front end pipeline section is observed more easily, in order to adjust the gesture of insert portion in real time and can avoid damaging, the condition of buckling appears, thereby promoted the protection performance to insert portion, reduced the defective rate of insert portion.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application.

In the drawings:

FIG. 1 is a schematic illustration of the structure of an endoscope assembly disclosed in some embodiments of the present application;

FIG. 2 is a schematic illustration of the structure of a body tube segment and a front end tube segment prior to assembly and a partial enlarged view at A thereof, as disclosed in some embodiments of the present application;

FIG. 3 is a schematic illustration of an assembled configuration of a body tube segment and a front end tube segment, and a partial enlarged view at B thereof, as disclosed in some embodiments of the present application;

FIG. 4 is a schematic view of the structure of a front end pipe section disclosed in the first embodiment of the present application;

FIG. 6 is a schematic view of a front end pipe section according to a second embodiment of the present disclosure;

FIG. 5 is a schematic illustration of an assembly of a front end pipe section with an insert portion as disclosed in some embodiments of the present application;

fig. 7 is a schematic view illustrating an assembly of a front end pipe section and an insertion portion according to a third embodiment of the present application.

Reference numerals illustrate:

100-endoscope, 110-handle, 120-insertion portion,

200-protection tube, 210-main body tube section, 220-front end tube section, 221-second tube cavity, 222-contraction section, 223-positioning protrusion, 223 a-avoidance gap, 224-insertion channel, 225-proximal orifice, 226-first guiding surface, 227-second guiding surface, 230-joint.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The following describes in detail the technical solutions disclosed in the embodiments of the present application with reference to the accompanying drawings.

In the specific use of the relevant endoscope, the insertion portion is required to be fed into the internal cavity tract of the patient body to perform the operations of examination, surgery, etc. In order to prevent the insertion part from being damaged by foreign objects during the transfer process, a protective tube is often sleeved outside the insertion part. However, even if the above measures are taken, the insertion portion is found to have a high defective rate at the time of use, and particularly the tip of the insertion portion is easily damaged.

As a result of the study, the inventors found that, in the process of installing the insertion portion into the protection tube, since the insertion portion has a certain flexibility and length dimension, the front end thereof may rub against the inner wall of the protection tube to cause damage to front end devices (for example, a camera, a light source, etc.), and even the front end of the insertion portion collides against the inner wall of the protection tube to cause that the insertion portion cannot be smoothly inserted in place, and bending damage occurs. The above-mentioned cases are all serious to the damage of the insertion portion.

In view of the foregoing, embodiments of the present application provide an endoscope protection tube for use in a transfer procedure.

Referring to fig. 1 to 7, the protection tube 200 disclosed in the embodiment of the present application includes a main body tube section 210 and a front end tube section 220, and the front end tube section 220 is detachably connected to the distal end of the main body tube section 210, so that the main body tube section 210 and the front end tube section 220 can be assembled by butt joint to form the protection tube 200, and can be detached by detachment.

Wherein the main body section 210 has a first lumen, the front end section 220 has a second lumen 221, the first lumen communicates with the second lumen 221 with the front end section 220 connected to the main body section 210, and the front end section 220 accommodates the front end of the insertion portion 120 of the endoscope 100 through the second lumen 221.

It will be appreciated that the first lumen provides a receiving space for the main body section 210 and the second lumen 221 provides a receiving space for the front end section 220, while in the case of a connection between the main body section 210 and the front end section 220, the first lumen and the second lumen 221 can be used to receive the insertion portion 120 at the same time, thereby achieving protection of the insertion portion 120.

It should be noted that, in the embodiment of the present application, the front end of the insertion portion 120 includes a device located at the distal end of the insertion portion 120, and may also include a segment portion near the distal end thereof. "proximal" and "distal" refer to the proximal and distal positions of the endoscope 100 and its accessories relative to a user in a use environment to facilitate a description of the positional relationship between the components, while facilitating understanding.

Because the protection tube 200 of the embodiment of the present application has a detachable property, when the insertion portion 120 is assembled with the protection tube 200, the insertion portion 120 may be first sent into the main body tube section 210 until the front end of the insertion portion 120 extends out of the main body tube section 210; then, the front end of the insertion portion 120 and the front end pipe section 220 may be picked up, respectively, and after the front end of the insertion portion 120 is fed into the front end pipe section 220, the front end pipe section 220 is connected with the main body pipe section 210, thereby achieving the assembly of the insertion portion 120 and the protection pipe 200.

In the above-mentioned assembly process, the main body pipe section 210 and the front end pipe section 220 are in the separated state most of the time, and the lengths of the main body pipe section 210 and the front end pipe section 220 are smaller than the whole length of the protection pipe 200, and the bending amplitude is difficult to control as the length of the insertion part 120 extending into the pipe is longer, so that the layout can obviously effectively reduce the deformation amplitude of the insertion part 120 in the pipe, thereby reducing the insertion difficulty and the damage risk.

Meanwhile, in the case that the front pipe section 220 is separated from the main pipe section 210, the front pipe section 220 is assembled with the front end of the insertion portion 120 as a separate pipe, so that the front end of the insertion portion 120 can be observed to be fed into the front pipe section 220, and the posture of the insertion portion 120 can be adjusted in real time to avoid serious friction between the front end of the insertion portion 120 and the inner wall of the front pipe section 220 and bending of the front end of the insertion portion 120.

Based on the above analysis, compared with the related art, the protection tube 200 according to the embodiment of the present application is configured in a structure form that the main body tube section 210 and the front end tube section 220 are detachably connected, so that the insertion portion 120 can be assembled in a tube body with a shorter length, and the feeding condition of the front end of the insertion portion 120 in the front end tube section 220 can be observed more easily, so that the posture of the insertion portion 120 can be adjusted in real time, and damage and bending conditions can be avoided, thereby improving the protection performance of the insertion portion 120, and reducing the reject ratio of the insertion portion 120.

In some embodiments of the present application, the ratio of the length of the front end section 220 to the length of the main body section 210 is 1: 15-1:3. With such arrangement, the length of the front end pipe section 220 in the protection pipe 200 is smaller, and the length of the insertion portion 120 extending into the front end pipe section 220 is smaller in the process of loading the insertion portion 120 into the front end pipe section 220, so that the bending amplitude of the insertion portion 120 can be reduced, and meanwhile, the feeding condition of the front end of the insertion portion 120 in the front end pipe section 220 can be observed more conveniently, the real-time adjustment of the posture of the insertion portion 120 can be realized more conveniently, and the damage risk of the insertion portion 120 is reduced.

In particular embodiments, the ratio of the length of the front end section 220 to the main body section 210 may be 1:12, 1:10, 1:9.5, 1:8, 1:6, or the like.

As shown in fig. 2 and 3, in some embodiments of the present application, one of the distal end of the body tube segment 210 and the proximal end of the front tube segment 220 may be a plug-fit to the other and the two are interference-fit.

It will be appreciated that embodiments of the present application are not limited to a particular mating relationship of the body tube segment 210 and the front end tube segment 220, as shown in fig. 2 and 3, the body tube segment 210 being a mating plug fit in the front end tube segment 220; alternatively, the front end section 220 may be a plug-fit into the body section 210.

The embodiment of the body tube segment 210 shown in fig. 2 and 3 plugged into the front end tube segment 220 is illustrated. With this structural arrangement, the front end tube segment 220 may be provided with a constriction 222 in its region adjacent the proximal opening 225 to change the cross-sectional dimension of the second lumen 221. As shown in fig. 2, the body tube segment 210 has a width D1 and the contracted segment 222 has a minimum cross-sectional width D2, and it is apparent that D2 is less than D1, so that the body tube segment 210 may be fixedly connected by an interference fit within the loading front end tube segment 220.

In a specific assembly process, after the insertion portion 120 is installed in the front end pipe section 220, the main body pipe section 210 and the front end pipe section 220 can be butted in opposite directions to extend the main body pipe section 210 into the front end pipe section 220 until the outer wall of the main body pipe section 210 is tightly clamped with the shrinkage section 222 of the front end pipe section 220, so that the assembly of the protection pipe 200 and the assembly of the insertion portion 120 and the protection pipe 200 are completed. Of course, when the protection tube 200 needs to be disassembled, only the main body tube section 210 and the front end tube section 220 need to be separated by applying a force in the back direction.

In the embodiments of the present application, the specific detachable connection manner of the main body pipe section 210 and the front end pipe section 220 is not limited, and may be, for example, a snap fit, a magnetic attraction fit, a screw fit, or the like.

As shown in fig. 2-7, in some embodiments of the present application, the front end section 220 includes positioning protrusions 223 disposed along the periphery Xiang Bu on an inner wall of the front end section 220, the positioning protrusions 223 defining a mating channel 224 therebetween, the axis of the mating channel 224 being parallel to the axis of the front end section 220.

It will be appreciated that, under such a structural layout, the positioning protrusion 223 can occupy a part of the space of the second lumen 221, and after the insertion portion 120 is inserted through the insertion channel 224, the positioning protrusion 223 abuts against the outer surface of the insertion portion 120 to play a supporting role, so as to limit the shake of the insertion portion 120, so as to prevent the portion of the insertion portion 120 extending into the front end pipe segment 220, especially the front end device, from being damaged due to collision.

Wherein, as shown in phantom in fig. 2 and 3, the axis of the mating channel 224 is collinear with the axis of the front end spool piece 220; in other embodiments, the axis of the mating passage 224 may be offset from the axis of the front tube segment 220, so long as the two are parallel. The axial layout of the mating channels 224 may be selected based on the particular structural layout within the front end section 220.

In the embodiments of the present application, the positioning protrusion 223 may have various structural types.

In one particular embodiment, as shown in FIG. 4, the positioning projections 223 are of a closed annular configuration and are circumferentially disposed on the inner wall of the front end pipe section 220. Under such a structural layout, the overall strength of the positioning protrusion 223 is better, so that the deformation and damage resistance of the positioning protrusion 223 can be improved, and even after the protection tube 200 is assembled with the insertion portion 120 for a plurality of times, the positioning protrusion 223 of the embodiment still can support and position the insertion portion 120, so that the service life of the positioning protrusion 223 can be prolonged.

Meanwhile, the positioning protrusions 223 in the structural layout are arranged circumferentially and circumferentially, so that the supporting effect can be provided for the insertion portion 120 in the circumferential direction, the stress balance of the insertion portion 120 can be optimized, deflection of the insertion portion 120 due to uneven stress can be avoided, and damage to the insertion portion 120 due to concentrated stress can be avoided.

Alternatively, as shown in fig. 5, in another embodiment, the positioning protrusions 223 are plural, and the positioning protrusions 223 are uniformly distributed on the inner wall of the front end pipe section 220 at intervals in the circumferential direction. With this structural arrangement, the avoiding gap 223a is defined between two adjacent positioning protrusions 223, and the avoiding gap 223a provides a deformation space for the positioning protrusions 223, so that during the process of feeding the insertion portion 120 into the insertion channel 224, the positioning protrusions 223 are more easily pressed and deformed into the avoiding gap 223a, thereby reducing wear on the insertion portion 120.

In some embodiments, as shown in fig. 2 and 3, the positioning protrusion 223 may have a sheet-like cross-sectional shape, or the positioning protrusion 223 may have another cross-sectional shape such as a block-like shape.

Referring to fig. 6, only one set of positioning protrusions 223 is provided on the inner wall of the front end pipe section 220.

In the embodiment shown in fig. 7, the positioning projections 223 are divided into a plurality of groups, and the plurality of groups of positioning projections 223 are arranged at intervals along the axial direction of the front end pipe section 220. With this arrangement, each set of positioning protrusions 223 can serve as a supporting member to support and position one region of the insertion portion 120, and the plurality of sets of positioning protrusions 223 can support and position a plurality of regions of the insertion portion 120 in the axial direction of the front end pipe section 220, so that the insertion portion 120 can be supported at a plurality of positions in the axial direction thereof, and further vibration of the insertion portion 120 assembled in the front end pipe section 220 is reduced.

In some embodiments of the present application, the positioning projections 223 are elastic structures. In this manner, the positioning protrusion 223 may be elastically deformed to avoid the insertion portion 120 during the assembly of the insertion portion 120 into the front end pipe section 220, thereby avoiding the abrasion of the insertion portion 120. Meanwhile, since the positioning protrusion 223 has an elastic characteristic, it can exert a flexible supporting effect on the insertion portion 120 by storing energy during the deformation process, so as to ensure the stability of the insertion portion 120 assembled into the front end pipe section 220, thereby preventing the insertion portion 120 from being damaged due to shaking.

In the embodiment of the present application, the specific material of the positioning protrusion 223 is not limited, and may be, for example, sponge, rubber, foam, or the like.

In some embodiments of the present application, the front end section 220 is a transparent tube. With this arrangement, during the process of loading the insertion portion 120 into the front end pipe section 220, an operator can observe the condition of the insertion portion 120 in the pipe through the pipe wall of the front end pipe section 220, and can adjust the posture of the insertion portion 120 in real time to avoid serious abrasion and bending of the insertion portion with the pipe wall of the front end pipe section 220, thereby protecting the insertion portion 120.

And/or the body tube segment 210 may be a transparent tube body. With this arrangement, the insertion portion 120 can be prevented from being damaged by observing the condition of the insertion portion 120 in the tube during the process of first installing the insertion portion 120 into the main body tube segment 210.

As shown in fig. 6, in some embodiments of the present application, the cross-sectional width of the second lumen 221 gradually decreases in the direction from the proximal end of the front end tube segment 220 to the distal end thereof.

It will be appreciated that with this arrangement, the cross-sectional passage area of the second lumen 221 will be greater at a location relatively near the proximal aperture 225 of the front tube segment 220, thereby facilitating smooth insertion of the insertion portion 120. The cross-sectional area of passage within the second lumen 221 is smaller relatively near the distal end of the front end section 220, such that after the insertion portion 120 is assembled in place within the second lumen 221, the space within the second lumen 221 for receiving the front end of the insertion portion 120 is also smaller, thereby limiting the occurrence of significant wobble of the front end of the insertion portion 120 to protect the front end device.

Meanwhile, since the cross-sectional width of the second lumen 221 is gradually changed, the smoothly transiting first guide surface 226 is configured at the inner wall of the front end pipe section 220, thereby ensuring that the front end of the insertion portion 120 can slide with respect to the first guide surface 226 even if it contacts the inner wall of the front end pipe section 220, preventing the insertion portion 120 from being blocked and being bent.

As shown in fig. 6, in some embodiments of the present application, the front end pipe section 220 includes a second guide surface 227 provided at a proximal end opening thereof, and the second guide surface 227 can guide the insertion portion 120 to slide into the front end pipe section 220, thereby improving the convenience of assembling the insertion portion 120 and the front end pipe section 220 and preventing the front end of the insertion portion 120 from being damaged by being blocked during insertion.

Wherein the first guide surface 226 and the second guide surface 227 may be selected from a slope, a cambered surface, etc. from a longitudinal section view of the front end pipe section 220.

In some embodiments of the present application, the distal end of the front tube section 220 is closed to enhance the dust-proof drainage performance of the protection tube 200, thereby avoiding damage to the endoscope 100 during transfer due to external foreign matter entering the protection tube 200.

As shown in fig. 1, the proximal end of the main body section 210 may be provided with a joint 230, and the joint 230 is used to detachably connect with the distal end of the handle 110 of the endoscope 100, so as to promote the connection reliability of the protection tube 200 with the endoscope 100.

As shown in fig. 1 to 7, the embodiment of the present application further provides an endoscope 100 assembly, including the endoscope 100 and the protection tube 200 mentioned in any of the foregoing embodiments, so that the endoscope 100 assembly has the beneficial effects of any of the foregoing embodiments. The insertion portion 120 of the endoscope 100 is inserted into the protective tube 200.

The endoscope 100 of the embodiment of the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a enteroscope, an otoscope, a nasoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc., and the embodiment of the present application does not specifically limit the type of the endoscope 100.

In the embodiments described above, the differences between the embodiments are mainly described, and as long as there is no contradiction between the different optimization features between the embodiments, the different optimization features may be combined to form a better embodiment, and in consideration of brevity of line text, the description is omitted here.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (10)

1. An endoscope protection tube for use in a transfer procedure, the protection tube comprising a main body tube section and a front end tube section, the front end tube section being detachably connected to a distal end of the main body tube section, the main body tube section having a first lumen, the front end tube section having a second lumen, the first lumen being in communication with the second lumen with the front end tube section connected to the main body tube section, the front end tube section receiving a front end of an insertion portion of an endoscope through the second lumen.

2. The protective tube of claim 1, wherein one of the distal end of the main body tube segment and the proximal end of the front end tube segment is a plug-fit to the other and the two are interference-fit.

3. The protective tube of claim 1, wherein the front end tube section includes locating protrusions disposed along a perimeter Xiang Bu on an inner wall of the front end tube section, the locating protrusions defining a mating channel therebetween, an axis of the mating channel being parallel to an axis of the front end tube section.

4. A protective tube according to claim 3, wherein the positioning protrusion is of a closed annular structure and is arranged on the inner wall of the front tube section in a circumferential extension; or the positioning protrusions are distributed on the inner wall of the front pipe section at uniform intervals along the circumferential direction.

5. A protective tube according to claim 3, wherein the locating projections are divided into a plurality of groups, the plurality of groups of locating projections being spaced apart along the axial direction of the front end tube section.

6. A protective tube according to any one of claims 3 to 5, wherein the locating projections are resilient structural members.

7. The protective tube according to any one of claims 1 to 5, wherein the front end tube section is a transparent tube body and/or the main tube section is a transparent tube body.

8. The protective tube according to any one of claims 1 to 5, wherein the cross-sectional width of the second lumen gradually decreases in a direction from the proximal end of the front tube section to the distal end thereof.

9. The protective tube of any one of claims 1 to 5, wherein the distal end of the front tube section is a closed end.

10. An endoscope assembly comprising an endoscope and the protective tube of any one of claims 1 to 9, the insertion portion of the endoscope being plug-fitted to the protective tube.

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