CN218792190U - Blocking element, insertion tube, insertion assembly and endoscope of endoscope - Google Patents

Abstract

The utility model relates to a blocking element, insert tube, insertion assembly and endoscope of endoscope, blocking element include connecting portion and two at least separation portions, separation portion is connected with connecting portion, separation portion sets up on the coplanar, is provided with spacing passageway in the separation portion, spacing passageway is used for through the haulage rope, separation portion is used for stopping the cover to establish the spring pipe on the haulage rope. The utility model discloses utilize the separation portion of blocking element to carry out the separation to the spring pipe, let the effort of spring pipe must pass to initiative bending section through separation portion again, increase the lifting surface area of initiative bending section, and then under based on same effort, the pressure of acting initiative bending section will greatly reduce, make the connection terminal surface of initiative bending section and passive bending section, and the insert tube can bear bigger bending deformation and can not damage, effective improve equipment's safety in utilization and convenience.

Description

Blocking element, insertion tube, insertion assembly and endoscope of endoscope

Technical Field

The utility model belongs to the technical field of the endoscope technique and specifically relates to a blocking element, stand pipe, insertion assembly and endoscope of endoscope are related to.

Background

Endoscopes have been widely used as current medical instruments. When in use, the inserting part of the endoscope enters the human body through the natural pore canal of the human body or a small incision made by operation, and a doctor can directly peep the change of the relevant part. In the prior art, the insertion portion of the endoscope generally comprises an active bending section, a passive bending section, a traction rope and a spring tube sleeved on the traction rope, and the applicant finds that the connecting end surface of the active bending section and the passive bending section is extremely easy to damage in the process of implementing the invention, which affects the normal use of the endoscope.

SUMMERY OF THE UTILITY MODEL

The present application aims to provide a blocking element, an insertion tube, an insertion assembly and an endoscope of an endoscope, which solve the above technical problems in the prior art, and mainly comprises the following four aspects:

this application first aspect provides an endoscope block component, including connecting portion and two at least separation portions, separation portion is connected with connecting portion, separation portion sets up on the coplanar, is provided with spacing passageway in the separation portion, spacing passageway is used for through the haulage rope, and spacing passageway is for setting up pore or channel in separation portion, separation portion and haulage rope one-to-one set up, and separation portion is used for blockking the spring pipe of cover on the haulage rope.

Further, the connecting part is of an arc, circular or elliptical ring structure.

Further, the blocking portion is located inside the connecting portion.

Further, the barrier element further comprises a reinforcing part, the reinforcing part is positioned on the inner side of the connecting part, and the end part of the reinforcing part is connected with the connecting part and/or the blocking part.

Further, the connecting part and the blocking part are integrally arranged.

The application second aspect provides an insert tube of endoscope, including the crooked section of initiative, passive crooked section and foretell component that blocks, be provided with first intercommunication passageway along the axial on the crooked section of initiative, be provided with second intercommunication passageway along the axial on the crooked section of passive, block that the component is located between the crooked section of initiative and the passive crooked section, first intercommunication passageway is through spacing passageway and second intercommunication passageway intercommunication.

Furthermore, the first communicating channels, the limiting channels and the second communicating channels are arranged in a one-to-one correspondence manner; in the corresponding first communicating channel, the limiting channel and the second communicating channel, the maximum inscribed circle of the first communicating channel, the maximum inscribed circle of the limiting channel and the maximum inscribed circle of the second communicating channel are coaxially arranged.

Further, the blocking element is at least partially embedded in the active bending section and/or the passive bending section.

The application third aspect provides an insertion assembly of endoscope, including front end portion, haulage rope and foretell insertion tube, be provided with the spring pipe in the second intercommunication passageway, the haulage rope passes spring pipe, spacing passageway and first intercommunication passageway in proper order to with front end portion connection, the distal end and the separation portion butt of spring pipe.

A fourth aspect of the present application provides an endoscope comprising the above-described blocking element, the above-described insertion tube, or the above-described insertion assembly.

The utility model discloses relative to prior art have following technological effect at least:

the utility model discloses utilize the separation portion of blocking element to carry out the separation to the spring pipe, let the effort of spring pipe must pass to initiative bending section through separation portion again, increase the lifting surface area of initiative bending section, and then under based on same effort, the pressure of acting initiative bending section will greatly reduce, make the connection terminal surface of initiative bending section and passive bending section, and the insert tube can bear bigger bending deformation and can not damage, effective improve equipment's safety in utilization and convenience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the structure of the blocking element of the present invention;

FIG. 2 is a schematic view of the insert assembly (hidden front end) of the present invention;

figure 3 is an exploded view of the insert assembly (hidden front end) of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a cross-sectional view of the insert assembly (concealing the front end) of the present invention;

FIG. 6 is a partial enlarged view at B in FIG. 5;

fig. 7 is a schematic view of a second construction of the blocking element of the invention;

fig. 8 is a third structural view of the blocking element of the present invention;

in the figure, the position of the upper end of the main shaft,

100. a blocking element; 110. a connecting portion; 120. a blocking section; 121. a limiting channel; 130. a reinforcing portion; 200. an active bending section; 210. a first communicating passage; 300. a passive bend section; 310. a second communicating passage; 400. a hauling rope; 500. a spring tube.

Detailed Description

The following description provides many different embodiments, or examples, for implementing different features of the invention. The particular examples set forth below are illustrative only and are not intended to be limiting.

To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

In addition, in the utility model, the "near end" and the "far end" are far and near positions of the structure relative to the operation of the human body in the use environment, so as to conveniently describe the position relationship between the components and facilitate understanding; for the same component, "proximal" and "distal" are relative positional relationships of the component, and are not absolute; therefore, the concept of the present invention should be understood in view of the implementation of the principle, without deviating from the essence of the present invention.

Example 1:

the embodiment of the application provides a blocking element 100 of an endoscope, as shown in fig. 1, 7 and 8, including connecting portion 110 and at least two separation portions 120, separation portion 120 is connected with connecting portion 110, separation portion 120 sets up on the coplanar, is provided with spacing passageway 121 on the separation portion 120, spacing passageway 121 is used for passing through haulage rope 400, and spacing passageway 121 is the pore canal or the channel of setting on separation portion 120, separation portion 120 sets up with haulage rope 400 one-to-one, and separation portion 120 is used for blockking the spring pipe 500 of cover on haulage rope 400.

The insertion part of the existing endoscope generally comprises an active bending section 200, a passive bending section 300, a traction rope 400 and a spring tube 500 sleeved on the traction rope 400, wherein the spring tube 500 is arranged in the passive bending section 300, the far end of the spring tube 500 is abutted to the active bending section 200, and the spring tube 500 is limited by the active bending section 200, but the applicant finds that when the insertion part is bent and deformed, the spring tube 500 can generate thrust to the active bending section 200, and the contact surface of the spring tube 500 and the active bending section 200 is point, curve or circular ring and has small contact area, so that the pressure of the spring tube 500 acting on the active bending section 200 is very high, and the connection end surface of the active bending section 200 and the passive bending section 300 is easily damaged, thereby influencing the normal use of the endoscope; therefore, in the present embodiment, a blocking element 100 is designed, the blocking portion of the blocking element 100 is used to block the spring tube 500, so as to prevent the spring tube 500 from directly contacting the active bending section 200, and the acting force of the spring tube 500 must pass through the blocking portion 120 and then be transmitted to the active bending section 200, and the contact between the blocking portion 120 and the active bending section 200 is surface contact, and the contact area thereof is much larger than the contact area between the spring tube 500 and the active bending section 200, and further, based on the same acting force, the pressure acting on the active bending section 200 will be greatly reduced, so that the connection end surfaces of the active bending section 200 and the passive bending section 300 and the insertion tube can bear larger bending deformation without damage, thereby effectively improving the use safety and convenience of the device.

Specifically, as shown in fig. 1 and 7, the connection portion 110 has an annular structure. When the active bending section 200 and the passive bending section 300 are in uniform tubular structures, the connecting part 110 can be set to be in an annular structure with an inner diameter matched with the inner diameter, so that the contact area between the blocking element 100 and the active bending section 200 can be increased, the influence of the spring tube 500 on the active bending section 200 is reduced, the blocking element 100 can be embedded into the active bending section 200 and/or the passive bending section 300 through hot melting, the blocking element 100 is convenient and fast and stable to install, and the influence on a pipeline inserted into the tube cannot be caused.

In some embodiments, as shown in fig. 8, the connecting portion 110 may be configured to be an arc-shaped structure, the passive bending section 300 is generally a tubular structure, and the arc-shaped connecting portion 110 is adapted to an end surface of the tubular passive bending section 300, so that on the basis of increasing the contact area between the blocking element 100 and the active bending section 200, the arc-shaped connecting portion 110 is embedded in the adapted end surface of the passive bending section 300 in a hidden manner, thereby ensuring stable installation of the blocking element 100 without affecting other pipelines inserted into the pipe; it can be understood that the arc-shaped connection portion 110 may also be adapted to the end surface of the active bending section 200 and embedded on the adapted end surface of the active bending section 200, and a part of the arc-shaped connection portion 110 may also be embedded on the adapted end surface of the active bending section 200, and another part of the arc-shaped connection portion 110 may be embedded on the adapted end surface of the passive bending section 300.

In some embodiments, when the connecting end surface of the active bending section 200 or the passive bending section 300 is provided with an oval pipe wall, the connecting portion 110 may be provided with an adaptive oval structure to increase the contact area and facilitate the fixed installation of the blocking element 100.

In some embodiments, 3, 4, or even more barriers 120 can be provided on the blocking element 100, depending on the need for bending manipulation of the endoscope insertion portion.

It should be noted that the fitting object of the connecting portion 110 may be a whole tube wall region of the end surface of the active bending section 200 or the passive bending section 300, or a partial tube wall region of the end surface of the active bending section 200 or the passive bending section 300, such as a wall surface corresponding to an instrument channel on the active bending section 200 and the passive bending section 300, or a wall surface corresponding to a camera module channel.

Specifically, the blocking portion 120 is located inside the connection portion 110. Generally, the spring tube 500 is disposed inside the passive bending section 300, and in order to facilitate the fixing and installation of the blocking element 100 between the active bending section 200 and the passive bending section 300 and reduce the influence on the lumen channel of the insertion tube, it is preferable to design the annular connecting portion 110 to have the same inner diameter as that of the passive bending section 300, so that the connecting portion 110 will not affect the instrument lumen and the image pickup module lumen, and the blocking portion 120 on the inner side can block the spring tube 500, thereby ensuring the safety of the insertion tube.

In some embodiments, when the tube wall regions of the end surfaces of the active bending section 200 or the passive bending section 300 are matched, for example, the connecting portion 110 is matched with the wall surface of the corresponding cavity of the instrument cavity, in order to ensure that the blocking portion 120 blocks the spring tube 500, the blocking portion 120 may be disposed outside the annular connecting portion 110.

Specifically, as shown in fig. 1 and 3 to 6, the blocking element 100 further includes a reinforcing portion 130, and the reinforcing portion 130 is located inside the connecting portion 110; in order to improve the mechanical strength of the blocking element 100, the reinforcing part 130 can be additionally arranged, so that the reinforcing part 130 is matched with the wall surface between the instrument cavity and the camera module cavity, and the blocking element 100 can be reinforced without influencing the pipeline inserted into the pipe; suitably, when two blocking portions 120 are provided, the connection line of the two blocking portions 120 passes through the center of the insertion tube, at this time, the reinforcing portion 130 is disposed between the two blocking portions 120, and two ends of the reinforcing portion 130 are connected to the blocking portions 120, respectively, and in addition, one end or two ends of the reinforcing portion 130 may be connected to the connecting portion 110, which is not limited herein.

Specifically, the connecting portion 110 and the blocking portion 120 are integrally formed, and the blocking element 100 may be manufactured by stamping and forming to facilitate manufacturing; in some embodiments, the connecting portion 110 and the blocking portion 120 may be formed by fixing and connecting the connecting portion 110 and the blocking portion 120 after the connecting portion 110 and the blocking portion 120 are separately processed.

Example 2:

the embodiment of the application provides an insertion tube of an endoscope, as shown in fig. 2 to 6, comprising an active bending section 200, a passive bending section 300 and a blocking element 100 in embodiment 1, wherein a first communicating channel 210 is axially arranged on the active bending section 200, a second communicating channel 310 is axially arranged on the passive bending section 300, the blocking element 100 is positioned between the active bending section 200 and the passive bending section 300, and the first communicating channel 210 is communicated with the second communicating channel 310 through a limiting channel 121.

In order to avoid the damage of the active bending section 200 caused by the influence of the spring tube 500 in the insertion tube, the blocking element 100 is additionally arranged between the active bending section 200 and the passive bending section 300 in the embodiment, the spring tube 500 is blocked by the blocking element 100, the spring tube 500 is prevented from directly contacting with the active bending section 200, when the insertion tube is bent and deformed, the acting force of the spring tube 500 directly acts on the blocking element 100, the force is transmitted to the active bending section 200 through the blocking element 100, the stress area of the active bending section 200 is effectively increased, the pressure on the unit contact area of the active bending section 200 is effectively reduced, the insertion tube can bear larger bending deformation and cannot be damaged, and the use safety and convenience of the device are effectively improved.

Specifically, the first communicating channel 210, the limiting channel 121 and the second communicating channel 310 are arranged in a one-to-one correspondence; in the corresponding first communicating channel 210, limiting channel 121 and second communicating channel 310, the maximum inscribed circle of the first communicating channel 210, the maximum inscribed circle of the limiting channel 121 and the maximum inscribed circle of the second communicating channel 310 are coaxially arranged. One spacing passageway 121 corresponds a haulage rope 400, and the aperture of spacing passageway 121 is less than the external diameter of spring pipe 500, and the separation portion 120 that blocks element 100 just can implement effectively to block spring pipe 500 like this, reduces and transmits the initiative bending segment 200 because of spring pipe 500 produces the effort, to the influence that initiative bending segment 200 caused, and through the biggest inscribed circle with first intercommunication passageway 210, the biggest inscribed circle of spacing passageway 121 and the biggest inscribed circle coaxial arrangement of second intercommunication passageway 310, guarantees that haulage rope 400 can effectively implement the bending and control.

It should be noted that the first communicating channel 210 may be a hole disposed inside the active bending section 200, or a channel disposed on the peripheral wall of the active bending section 200, and similarly, the second communicating channel 310 may be a hole disposed inside the passive bending section 300, or a channel disposed on the peripheral wall of the passive bending section 300, and is not limited herein; when the passage is a channel provided on the outer circumferential wall, the maximum inscribed circle means the maximum inscribed circle between the passage and the cladding body clad on the insertion tube.

In particular, the blocking element 100 is at least partially embedded in the active bending section 200 and/or the passive bending section 300 to improve the connection stability of the blocking element 100 on the insertion tube while reducing the influence of the blocking element 100 on the insertion tube inner line.

Example 3:

the embodiment of the application provides an insertion assembly of an endoscope, as shown in fig. 2 to 6, comprising a front end part, a pull rope 400 and an insertion tube in embodiment 2, wherein a spring tube 500 is arranged in the second communication channel 310, the pull rope 400 sequentially passes through the spring tube 500, the limiting channel 121 and the first communication channel 210 and is connected with the front end part, and the far end of the spring tube 500 is abutted to the blocking part 120.

Example 4:

embodiments of the present application provide an endoscope comprising the blocking element 100 of embodiment 1, the insertion tube of embodiment 2, or the insertion assembly of embodiment 3.

It should be noted that the endoscope in the embodiment of the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, an enteroscope, an otoscope, a rhinoscope, an odontoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, and the like, and the kind of the endoscope is not particularly limited in the embodiment of the present application.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims (10)

1. The utility model provides an endoscope block component, its characterized in that includes connecting portion and two at least separation portions, separation portion is connected with connecting portion, separation portion sets up on the coplanar, is provided with spacing passageway in the separation portion, spacing passageway is used for through the haulage rope, and spacing passageway is for setting up pore or channel in separation portion, separation portion and haulage rope one-to-one set up, and separation portion is used for blockking the spring pipe of cover on the haulage rope.

2. A barrier element as claimed in claim 1 wherein the connecting portion is of arcuate, circular or elliptical configuration.

3. A barrier element as claimed in claim 2, wherein the barrier portion is located inside the connecting portion.

4. A barrier element as claimed in claim 2, further comprising a reinforcement part located inside the connection part, the reinforcement part being connected at its ends to the connection part and/or the barrier part.

5. A barrier element as claimed in any one of claims 1 to 4, wherein the connecting portion and the barrier portion are integrally provided.

6. An insertion tube of an endoscope, comprising an active bending section, a passive bending section and a blocking element as claimed in any one of claims 1 to 5, wherein the active bending section is provided with a first communicating channel along the axial direction, the passive bending section is provided with a second communicating channel along the axial direction, the blocking element is positioned between the active bending section and the passive bending section, and the first communicating channel is communicated with the second communicating channel through a limiting channel.

7. The insertion tube of claim 6, wherein the first communication channel, the limiting channel, and the second communication channel are arranged in a one-to-one correspondence; in the corresponding first communicating channel, the limiting channel and the second communicating channel, the maximum inscribed circle of the first communicating channel, the maximum inscribed circle of the limiting channel and the maximum inscribed circle of the second communicating channel are coaxially arranged.

8. The insertion tube according to claim 6 or 7, characterized in that the blocking element is at least partially embedded in the active bending section and/or the passive bending section.

9. An insertion assembly of an endoscope, comprising a front end portion, a pulling rope and an insertion tube according to any one of claims 6 to 8, wherein a spring tube is arranged in the second communication channel, the pulling rope sequentially passes through the spring tube, the limiting channel and the first communication channel and is connected with the front end portion, and the far end of the spring tube is abutted to the blocking portion.

10. An endoscope comprising a blocking element according to any one of claims 1 to 5, an insertion tube according to any one of claims 6 to 8, or an insertion set according to claim 9.

Images