CN218899388U - Rotating part for endoscope and endoscope - Google Patents

Abstract

The utility model is applicable to the technical field of endoscopes, and provides a rotating piece for an endoscope and the endoscope, wherein the rotating piece comprises a rotating shaft, the rotating piece is rotatably mounted on a shell of a handle through the rotating shaft, an abutting part is arranged on the rotating piece along a preset direction, and the abutting part can rotate to the radial direction of the arrangement of a haulage rope to abut against the haulage rope, so that the haulage rope is tensioned; the abutting part can rotate to the axial direction of the traction rope arrangement so as to release the tensioning state of the traction rope. In the utility model, after the traction rope is released from the tensioning state by the rotating piece, the active bending section at the far end of the endoscope can be in a limp state, and in the limp state, when an operator executes the drawing-out of the active bending section, the active bending section can follow the bending environment of the human body cavity, so that the scraping and larger force on the cavity environment can not be caused, and the stress response of a patient is solved.

Description

Rotating part for endoscope and endoscope

Technical Field

The utility model belongs to the technical field of endoscopes, and relates to a rotating part for an endoscope and the endoscope.

Background

Endoscopes are increasingly used in modern minimally invasive surgery, which can be introduced into the body through natural lumens or minimally invasive apertures of the body. The active bending section of the endoscope stretches into the human body, the operation layout of bending of the active bending section is controlled through operation, so that the body cavity is detected, and an image in an irradiation range is acquired through the image pickup module positioned at the distal end part of the active bending section, so that observation, shooting, diagnosis and the like are performed.

However, from the clinical point of view, when the endoscope is used, the patient shows a remarkable stress response during the extraction action performed by inserting the endoscope into a portion of the human body, and thus the problem is urgently needed to be solved.

Disclosure of Invention

It is an object of the present utility model to provide a rotor for an endoscope,

the rotating piece comprises a rotating shaft, the rotating piece is rotatably mounted on the shell of the handle through the rotating shaft, an abutting part is arranged on the rotating piece along a preset direction, and the abutting part can rotate to the radial direction of the arrangement of the traction ropes to abut against the traction ropes, so that the traction ropes are tensioned; the abutting part can rotate to the axial direction of the traction rope arrangement so as to release the tensioning state of the traction rope.

Preferably, the rotating member includes a base portion having a larger dimension in the first direction than in the second direction, and the abutment portions are located at both ends of the base portion in the first direction.

Preferably, the rotating member further includes a limiting portion protruding from an outer circumferential surface of the base portion in a radial direction of the base portion.

Preferably, the limiting portions are located on both sides of the base in the axial direction, respectively, and a limiting space is formed between the two limiting portions.

Preferably, the end face of the abutting portion is arc-shaped.

Preferably, the rotating member is in a dog bone structure, the abutting portion is located at an end portion of the rotating member opposite to the rotating member, and a first accommodating groove is formed in the abutting portion.

Preferably, the abutting part is a rotating wheel, the rotating wheel is rotatably mounted at two ends of the rotating piece, and a second accommodating groove is formed in the peripheral surface of the rotating wheel.

One end of the rotating shaft penetrates through the outer side of the handle, and a deflector rod is fixedly connected to the end part of the rotating shaft extending out of the handle.

The present utility model also provides an endoscope including: the above-described rotary member, and the housing, the rotary member portion being fitted into an inner space formed by the housing.

The beneficial effects are that:

1. in the utility model, after the traction rope is released from the tensioning state by the rotating piece, the active bending section at the far end of the endoscope can be in a limp state, and in the limp state, when an operator executes the drawing-out of the active bending section, the active bending section can follow the bending environment of the human body cavity, so that the scraping and larger force on the cavity environment can not be caused, and the stress response of a patient is solved.

2. According to the utility model, when the traction ropes are in a tensioning state, an operator drives the operating mechanism on the handle, at the moment, the two traction ropes in the handle synchronously move in opposite directions respectively, and the two traction ropes are abutted with the rotating wheel on the rotating piece and roll in the moving process, so that the friction resistance between the traction ropes and the abutting part is reduced, and the operator can easily operate the operating mechanism.

3. According to the utility model, an operator can instantly switch the traction rope between the tensioning state and the releasing tensioning state, the operation process is simple and quick, and the efficiency is high, so that on one hand, the convenient operation is provided for the operator, and on the other hand, the discomfort of a patient is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the embodiments of the present utility model or the drawings used in the description of the prior art, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the position of a rotating member in a state where a pulling rope in an endoscope handle is released from tension, and a schematic view of a region B in a partial enlarged manner;

FIG. 2 is a schematic view of the position of a rotating member in a tensioned state of a pulling rope inside a handle of an endoscope according to an embodiment of the present utility model, and a schematic view of a part of a region C;

FIG. 3 is a schematic view of a rotary member of an endoscope provided in an alternative embodiment of the present utility model, and a partially enlarged schematic view of a W region;

FIG. 4 is a schematic view of a first state of another rotor structure of an endoscope provided in an alternative embodiment of the present utility model, and a partially enlarged schematic view of a J region;

FIG. 5 is a schematic view of a second state of another rotor structure of an alternative embodiment of the endoscope provided by the present utility model, and a partially enlarged schematic view of area I;

FIG. 6 is a schematic view of a multi-view configuration of an alternative embodiment of the present utility model provided with an endoscope disk rotor in a de-tensioned state;

FIG. 7 is a schematic view of a multi-view structure of an endoscope disk rotor in tension provided in an alternative embodiment of the present utility model;

FIG. 8 is a schematic view of still another rotor structure of an endoscope provided in an alternative embodiment of the present utility model, and a partially enlarged schematic view of area A;

FIG. 9 is a schematic view of a further modification of the rotational member of the endoscope provided in FIG. 8, and a partially enlarged schematic view of region K, in accordance with an alternative embodiment of the present utility model;

FIG. 10 is a schematic view of a first state of the drive portion of the exterior structure of the handle housing of an endoscope, and a partially enlarged schematic view of the G region, provided in an alternative embodiment of the present utility model;

fig. 11 is a schematic view showing a second state of the driving part of the outer structure of the handle housing of the endoscope and a partially enlarged schematic view of the H region according to an alternative embodiment of the present utility model.

In the accompanying drawings: 10. a housing; 100. an inner space; 11a, a traction rope; 11b, a traction rope; 13. a rotating shaft; 14a, a rotating wheel; 14a1, a rotation shaft; 14b, a rotating wheel; 14b1, a rotation shaft; 141. a second accommodating groove; 142. a second accommodating groove; 15. a rotating member; 150a, a base; 151. an abutting portion; 152. an abutting portion; 153. a limiting plate; 1530. a limit space; 154. a limiting plate; 15a, a limiting part; 15b, a limiting part; 150b, a limiting part; 150. a limit space; 151a, guide grooves; 152a, guide grooves; 16a, an abutment; 16a1, radial projections; 16b, an abutment; 16b1, radial projections; 161. a first accommodating groove; 162. a first accommodating groove; 17. a driving section; 171. a positioning part; 20. an insertion section; 21. an active bending section; 30. an operating mechanism.

Detailed Description

The following description provides many different embodiments, or examples, for implementing different features of the utility model. The elements and arrangements described in the following specific examples are presented for purposes of brevity and are provided only as examples and are not intended to limit the utility model.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the present utility model, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less 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 human body operation under the use environment, so that the description of the position relationship among the components is convenient, and meanwhile, the understanding is convenient; for the same component, "proximal" and "distal" are relative positional relationships of the component, not absolute; accordingly, it should be understood from the perspective of implementing the principles of the present utility model without departing from the spirit of the utility model.

Referring to FIGS. 1-9, the present utility model provides a rotary member 15 for an endoscope, the rotary member 15 for providing support to a pull cord (11 a,11 b) provided in a handle of the endoscope to tension the pull cord (11 a,11 b); and, when necessary, putting the traction ropes (11 a,11 b) in a state of releasing tension. In particular, the axial direction (f 1, f 2) of the endoscope handle, and the radial direction (f 3, f 4) of the endoscope handle are shown in fig. 1-5; it should be noted that, as shown in fig. 1 and 2, in general, in the process of producing an endoscope, the pulling ropes (11 a,11 b) need to be connected to the rotating wheels (wherein the rotating wheels are a conventional part for fixing the pulling ropes (11 a,11 b), and then the pulling ropes (11 a,11 b) are pre-tensioned so that the connection relationship between the pulling ropes and the active bending section 21 and the rotating wheels reaches the above-mentioned tensioning state; in this state, the active bending section 21 inserted into the human body has a certain bending damping, and it can be understood that when the operator pulls the operating mechanism 30 to bend the active bending section 21 to a predetermined position, the acting force on the operating mechanism 30 is released; since the traction ropes (11 a,11 b) are in tension with the active bending section 21, and since there is a lack of restoring force to restore the active bending section 21 to the original state, the active bending section 21 will remain in its bent state at this time, although this state cannot be completely locked, however, to change the form of the active bending section 21 in this state to another bending form will require an external force to be provided thereto, such as the operator pulling the operating mechanism 30, or to apply a force directly on the distal end of the active bending section 21, whereas it is difficult to apply a force directly on the distal end of the active bending section 21 to force the active bending section 21 to deform because the radius of curvature of the active bending section 21 is generally small, and therefore a moment to drive the bending thereof is required to be large, resulting in the active bending section 21 in the bent state being hooked into the internal tissue of the human body or being scraped directly against the wall of the internal lumen of the human body during the process of pulling out the human body; however, the internal tissue of the human body is extremely soft, so that the active bending section 21 cannot be provided with a moment that varies with the shape of the internal cavity of the human body, i.e., the shape of the active bending section 21 does not vary with the shape of the internal cavity of the human body through which it passes during the extraction of the human body, which explains why when the endoscope is used up, the part inserted into the human body is extracted out, the patient shows a remarkable stress reaction due to the damage to the wall surface of the cavity of the human body or the tissue during the extraction of the active bending section 21. In addition, even if the operator normally adjusts the active bending section 21 to a flat state when pulling out the active bending section 21, however, when the active bending section 21 adjusted to the flat state reaches the bent corner in the body cavity of the human body, if the radius of curvature at the corner of the body cavity is small, the active bending section will also abut against the inner wall of the body cavity, causing damage to the wall surface of the body cavity or the tissue. This is why patients exhibit significant stress and is not known nor contemplated.

Therefore, based on the analysis, the problems can be solved by only rapidly switching between the tensioning and the releasing tensioning states of the traction ropes (11 a,11 b) through long-term observation and research of research personnel. For switching between these two states of tensioning and releasing the traction ropes (11 a,11 b), a turning piece 15 in the present utility model is proposed to achieve the above object.

Referring to fig. 1, the rotating member 15 includes a rotating shaft 13, the rotating member 15 is rotatably mounted to the housing 10 of the handle through the rotating shaft 13, and the rotating member 15 is provided with abutting portions (16 a,16 b) shown in fig. 1 along a predetermined direction; the preset direction refers to a long axis direction of the rotating member 15, such as the rotating member 15 shown in fig. 1 and fig. 2, in this optional embodiment, the rotating member 15 is in a dog-bone structure, the abutting portions (16 a,16 b) are located at opposite ends of the rotating member, and the abutting portions (16 a,16 b) are provided with first accommodating grooves (161, 162), in this embodiment, the first accommodating grooves (161, 162) may be in an arc structure, so that the contact between the rotating member 15 and the traction ropes (11 a,11 b) is smooth and excessive during the process of switching the rotating member 15 from the state of non-tensioning traction ropes (11 a,11 b) to the state of tensioning the traction ropes (11 a,11 b), so as to avoid the traction ropes (11 a,11 b) from being broken due to abrasion caused by long-term switching operation at contact points of the abutting traction ropes (11 a,11 b). In the above embodiment, the rotary member 15 of the dog bone structure may also be the structure shown in fig. 3, in which the size of the abutment portions (16 a,16 b) at both ends of the dog bone structure in the axial direction of the rotary shaft 13 is increased, and in the structure of the abutment portions (16 a,16 b) which are widened as shown in fig. 3, radial protrusions (16 a1, 16b 1) may be provided at both ends of the abutment portions (16 a,16 b) in the axial direction of the rotary shaft 13 in order to further restrict the pull-out of the traction ropes (11 a,11 b) in the axial direction of the rotary shaft 13.

Please refer to the position state of the rotary member 15 shown in fig. 1 and fig. 2; in fig. 2, the abutting portions (16 a,16 b) are rotatable to the radial direction in which the traction ropes (11 a,11 b) are arranged to abut against the traction ropes (11 a,11 b), so that the traction ropes (11 a,11 b) are tensioned; in this state, the active bending section 21 of the endoscope can perform normal bending observation operation, and in this state, the passive bending of the active bending section 21 needs to apply external force, for which reason the above-mentioned text is subjected to principle analysis, and details thereof will not be described here. In fig. 1, the abutment portions (16 a,16 b) are rotatable to an axial direction in which the traction ropes (11 a,11 b) are arranged, to release the tension state of the traction ropes (11 a,11 b). When the traction ropes (11 a,11 b) are released from the tension state by the rotating member 15, the active bending section 21 at the distal end of the endoscope can be in a soft state, and in the soft state, when an operator performs the drawing-out of the active bending section 21, the active bending section 21 can follow the bending environment of the human body cavity, so that the bending environment is not scratched and has a large force, and the stress response of a patient is solved.

Further, when the traction rope (11 a,11 b) is in a state of releasing tension, the traction rope (11 a,11 b) is in a loose state, in which the traction rope (11 a,11 b) can shake in the handle along with the movement of the handle, so other structures in the handle are easily disturbed, in order to solve the above problems, in an alternative embodiment of the present utility model, a limit part (15 a,15 b) is designed, a limit function is provided for the traction rope (11 a,11 b) in the loose state, so that the traction rope (11 a,11 b) is prevented from shaking in the handle, specifically, in combination with fig. 4, the limit part (15 a,15 b) is arranged in the radial direction of the rotating member 15, further, the limit part (15 a,15 b) is arranged between the abutting parts (16 a,16 b) and protrudes upwards, a limit space 150 is defined between the two limit parts (15 a,15 b), and the limit space 150 and the abutting part (16 a,16 b) are located on the same plane as the abutting part (16 a,11 b), so that when the traction rope (11 a,11 b) is in the tight state, the other structures (11 a,11 b) are not in the state, as shown in fig. 4, when the traction rope (11 b) is released from the tension, so that the traction rope (11 a,11 b) is in the state, as shown in the state of releasing tension.

The predetermined direction may be an extension line direction of a line connecting two contact portions (16 a,16 b) of the traction ropes (11 a,11 b) on the rotating member.

Referring to fig. 6 and 7, the rotating member 15 is shown as a disc structure, the rotating member 15 includes a base 150a, the base 150a has a larger dimension along a first direction than a dimension along a second direction, and the abutting portions (151, 152) are located at two ends of the base along the first direction. The first direction refers to the N direction shown in fig. 6 (a) in the present embodiment, and the second direction refers to the M direction shown in fig. 6 (a). If the base 150a is provided as a separate component, it can be understood that the rotor 15 structure shown in fig. 1 and 2; more specifically, in this embodiment, the rotating member 15 further includes a limiting portion 150b, where the limiting portion 150b is protruding on the outer peripheral surface of the base portion 150a along the radial direction of the base portion 150a, so that the outer contour of the rotating member 15 in this embodiment is a disc-type structure, and the disc-type structure may be a disc, an oval disc, or another special-shaped disc-type structure. In this embodiment, the protruding portions in the M direction shown in fig. 6 (a) are defined as limiting plates (153, 154), the limiting plates (153, 154) are respectively located on both sides of the axial direction of the base 150a, and a limiting space 1530 is formed in the region of the limiting plates (153, 154) other than the base 150a, the limiting plates (153, 154) are used for accommodating the traction ropes (11 a,11 b) when the traction ropes (11 a,11 b) are in the tension-released state, preventing the traction ropes (11 a,11 b) in the tension-released state from being displaced in the axial direction of the rotating shaft 13, and facilitating the smooth transition of the traction ropes (11 a,11 b) to the abutted portions (151, 152) when the traction ropes (11 a,11 b) are in the tension-released state, and, as is preferable, the end faces of the abutted portions (151, 152) are arc-shaped, and the guide grooves (151 a,152 a) are provided on the end faces.

In other alternative embodiments, as shown in fig. 8, the abutting portion may be a rotating wheel (14 a,14 b) structure, the rotating wheels (14 a,14 b) are rotatably mounted on two ends of the rotating member 15, and the circumferential surfaces of the rotating wheels (14 a,14 b) are provided with second accommodating grooves (141, 142). Specifically, as shown in fig. 8, the rotating wheel (14 a,14 b) is rotatably attached to the end of the rotating member 15 by a rotating shaft (14 a1, 14b 1), and a second receiving groove (141, 142) into which the traction rope (11 a,11 b) is caught is provided on the outer peripheral surface of the rotating wheel, and the purpose of the rotating wheel (14 a,14 b) is to reduce the friction between the traction rope (11 a,11 b) and the abutment portion when the traction rope is in a tensioned state, thereby facilitating the operator to handle the bending of the active bending section 21. Specifically, when the traction ropes (11 a,11 b) are in a tensioning state, the operator drives the operating mechanism 30 on the handle, at the moment, the two traction ropes (11 a,11 b) in the handle synchronously move in opposite directions respectively, the two traction ropes are abutted with the rotating wheels on the rotating piece 15 and the traction ropes (11 a,11 b) and roll in the moving process, and the friction resistance between the traction ropes (11 a,11 b) and the abutted parts is reduced, so that the operator can easily operate the operating mechanism 30.

Further, as shown in fig. 9, to solve the problem of natural shaking of the traction ropes (11 a,11 b) in the handle in the loose state, the rotating member 15 in the present embodiment may be provided with limiting portions (15 a,15 b), as shown in fig. 8. The limiting portions (15 a,15 b) may be arc-shaped protruding plate bodies in the above embodiment, or may be rod-shaped structures, and the structural form thereof is not limited.

Further, the method comprises the steps of,

one end of the rotating shaft penetrates through the outer side of the handle, and a deflector rod is fixedly connected to the end part of the rotating shaft extending out of the handle. Specifically, in the present utility model, in order to facilitate the operator to switch between the tensioning and releasing states of the pulling ropes (11 a,11 b), a shift lever 17 is provided at the other end of the rotating shaft 13, and is connected to the shift lever 17 through a positioning portion 171, the shift lever 17 is located at the outer side of the handle housing 10, so as to facilitate the operation to switch at any time, please refer to fig. 10 and fig. 11, fig. 10 and fig. 11 respectively show two states of the shift lever 17, in the states shown in fig. 10, the length direction of the shift lever 17 is substantially consistent with the axial direction of the handle, and at this time, the pulling ropes (11 a,11 b) are in the tensioned state, so that the endoscope can perform the operation normally; in the state shown in fig. 11, the longitudinal direction of the lever 17 is substantially perpendicular to the axial direction of the handle, and the pulling ropes (11 a,11 b) are in a state of being released from tension, so that the pulling-out operation of the endoscope active bending section 21 from the human body can be performed. Or the opposite states are arranged, namely when the length direction of the deflector rod 17 is basically consistent with the axial direction of the handle, the traction ropes (11 a,11 b) are in a tension releasing state, and can be used for the operation of pulling out the endoscope active bending section 21 from a human body; when the length direction of the deflector rod 17 is basically vertical to the axial direction of the handle, the pulling ropes (11 a,11 b) are in a tensioned state, and the endoscope can normally perform operation.

The present utility model also provides an endoscope including: the above-mentioned rotary member 15, and the housing 10, the rotary member 15 is partially fitted into the internal space 100 formed by the housing. The operator can switch the traction rope between the tensioning state and the releasing tensioning state instantly, the operation process is simple and quick, the efficiency is high, on one hand, the convenient operation is provided for the operator, and on the other hand, the patient is helped to reduce uncomfortable feeling

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (9)

1. A rotating member for an endoscope, characterized by:

the rotating piece comprises a rotating shaft, the rotating piece is rotatably mounted on a shell of the handle through the rotating shaft, an abutting part is arranged on the rotating piece along a preset direction, and the abutting part can rotate to the radial direction of the traction rope arrangement to abut against the traction rope, so that the traction rope is tensioned; the abutting part can rotate to the axial direction of the traction rope arrangement so as to release the tensioning state of the traction rope.

2. A rotary member for an endoscope according to claim 1 and wherein: the rotating member includes a base portion having a larger dimension in a first direction than in a second direction, and the abutment portions are located at both ends of the base portion in the first direction.

3. A rotary member for an endoscope according to claim 2 and wherein: the rotating piece further comprises a limiting part, and the limiting part is arranged on the outer peripheral surface of the base in a protruding mode along the radial direction of the base.

4. A rotary member for an endoscope according to claim 3 and wherein: the limiting parts are respectively positioned at two sides of the axial direction of the base part, and a limiting space is formed between the two limiting parts.

5. A rotary member for an endoscope according to claim 1 and wherein: the end face of the abutting part is arc-shaped.

6. A rotary member for an endoscope according to claim 5 and wherein: the rotating piece is of a dog bone structure, the abutting part is located at the end part of the rotating piece, which is opposite to the rotating piece, and a first accommodating groove is formed in the abutting part.

7. A rotary member for an endoscope according to claim 1 and wherein: the abutting part is a rotating wheel, the rotating wheel is rotatably mounted at two ends of the rotating piece, and a second accommodating groove is formed in the peripheral surface of the rotating wheel.

8. A rotary member for an endoscope according to claim 1 and wherein: one end of the rotating shaft penetrates through the outer side of the handle, and a deflector rod is fixedly connected to the end part of the rotating shaft extending out of the handle.

9. An endoscope, comprising: the rotor of any one of claims 1-8, and a housing, the rotor portion mounted into an interior space defined by the housing.

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