CN219207113U

CN219207113U - Support for flexible drive element, end effector and cutting stapler having the same

Info

Publication number: CN219207113U
Application number: CN202223120899.XU
Authority: CN
Inventors: 李程; 李凌; 辜嘉; 李中梅; 沈光国
Original assignee: Suzhou Zhongkehuaying Health Technology Co ltd
Current assignee: Suzhou Zhongkehuaying Health Technology Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-06-20
Anticipated expiration: 2032-11-23

Abstract

The utility model discloses a support of a flexible driving element, an end effector and a cutting stitching instrument with the support, wherein the support comprises: at least two connecting pieces in series, wherein a groove is arranged on a first end face of each connecting piece, and a convex plate is arranged on a second end face of each connecting piece, and the first end face and the second end face are opposite end faces in the connecting piece; in two adjacent connecting pieces, the convex plate of one connecting piece goes deep into the groove of the other connecting piece, and in the plane of the convex plate, the two connecting pieces can be connected in a rotating way. The support piece can be freely bent, and then can go deep into a natural cavity for operation, so that the support piece is very convenient to use.

Description

Support for flexible drive element, end effector and cutting stapler having the same

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a support piece of a flexible driving element, an end effector with the support piece and a cutting stitching instrument.

Background

The cutting suture device is a common cutting suture device, can finish the suture and cutting actions at the same time, greatly saves the operation time of doctors, reduces the bleeding amount and improves the success rate of the operation. As shown in fig. 1, the cutting stapler mainly includes: a handle 100, an elongated body 200, and an end effector 300, wherein the handle 100 is adapted to be held and manipulated by an operator to provide control and actuation, the distal side of the handle 100 (proximal side proximal to the operator when manipulated, distal side distal to the operator) is coupled to the end effector 300 by the elongated body 200, and a cutting and stapling apparatus 400 is disposed in the end effector 300; the end effector 300 controls the cutting and stapling apparatus 400 to cut and staple tissue under the driving of the handle 100.

In reality, the end effector 300 is generally straight, i.e., cannot bend freely, and is thus inconvenient to use, for example: in open chest hand-held procedures, the cutting stapler needs to be maneuvered deep into the natural orifice, and it is understood that since the end effector 300 is straight, it is very inconvenient to maneuver.

Disclosure of Invention

In view of the above, it is a primary object of the present utility model to provide a flexible drive element support, an end effector and a cutting stapler having the same.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows: a support for a flexible drive element, comprising: at least two connecting pieces in series, wherein a groove is arranged on a first end face of each connecting piece, and a convex plate is arranged on a second end face of each connecting piece, and the first end face and the second end face are opposite end faces in the connecting piece; in two adjacent connecting pieces, the convex plate of one connecting piece goes deep into the groove of the other connecting piece, and in the plane of the convex plate, the two connecting pieces can be connected in a rotating way.

As a modification of the embodiment of the utility model, the projection and the recess are located in the same plane in the same connector.

As an improvement of the embodiment of the utility model, in the same connecting piece, the plane of the convex plate and the plane of the groove are mutually perpendicular.

As an improvement of the embodiment of the utility model, each section of connecting piece is provided with a through hole penetrating through the connecting piece, and the through hole extends from the bottom surface of the groove to the end surface, far away from the first end surface, of the convex plate; the through holes of all the connecting pieces form a supporting guide hole for the sliding assembly of the flexible driving element.

As an improvement of the embodiment of the utility model, in the connecting piece, the first end face and the second end face are both convex cambered surfaces; in two adjacent connecting pieces, the first end face of one connecting piece and the second end face of the other connecting piece are always abutted against each other in the process of mutual rotation of the two connecting pieces.

As an improvement of the embodiment of the utility model, in the same connecting piece, a bus corresponding to the convex cambered surface where the first end face is positioned is parallel to the plane where the groove is positioned; in the same connecting piece, the bus corresponding to the convex cambered surface where the second end face is positioned is parallel to the plane where the convex plate is positioned.

As a modification of the embodiment of the present utility model, in the groove, a portion of the inner side surface near the first end surface is an inclined surface inclined in a direction away from the groove.

The embodiment of the utility model also provides an end effector, which comprises: the support parts of the two flexible driving elements, wherein in one support part, the convex plates and the grooves in all the connecting parts are positioned in the same plane; in the other support piece, the planes of the convex plates and the planes of the grooves in all the connecting pieces are mutually perpendicular; the two supports are connected in series.

As an improvement of the embodiment of the utility model, a connecting block is connected in series between the two supporting pieces.

The embodiment of the utility model also provides a cutting stitching instrument, which comprises: cutting stapling devices and end effectors as described above.

The support piece of the flexible driving element, the end effector and the cutting stitching instrument provided by the embodiment of the utility model have the following advantages: the embodiment of the utility model discloses a support piece of a flexible driving element, an end effector and a cutting stitching instrument with the support piece, wherein the support piece comprises the following components: at least two connecting pieces in series, wherein a groove is arranged on a first end face of each connecting piece, and a convex plate is arranged on a second end face of each connecting piece, and the first end face and the second end face are opposite end faces in the connecting piece; in two adjacent connecting pieces, the convex plate of one connecting piece goes deep into the groove of the other connecting piece, and in the plane of the convex plate, the two connecting pieces can be connected in a rotating way. The support piece can be freely bent, and then can go deep into a natural cavity for operation, so that the support piece is very convenient to use.

Drawings

FIG. 1 is a block diagram of a prior art cutting stapler;

FIGS. 2A and 2B are block diagrams of a support for a flexible drive element provided in accordance with an embodiment of the present utility model;

fig. 3A, fig. 3B, fig. 4A, and fig. 4B are all block diagrams of a connector according to an embodiment of the present utility model.

Detailed Description

The present utility model will be described in detail below with reference to embodiments shown in the drawings. The embodiment is not intended to limit the present utility model, and structural, methodological, or functional modifications of the utility model according to the embodiment are included in the scope of the utility model.

The following description and the drawings sufficiently illustrate specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in, or substituted for, those of others. The scope of the embodiments herein includes the full scope of the claims, as well as all available equivalents of the claims. The terms "left," "right," and the like are used herein merely to distinguish one element from another element and do not require or imply any actual relationship or order between the elements. In practice the left element can also be referred to as the right element and vice versa. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, system, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, system, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a structure, system or device comprising the element. Various embodiments are described herein in a progressive manner, each embodiment focusing on differences from other embodiments, and identical and similar parts between the various embodiments are sufficient to be seen with each other.

The terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein refer to an orientation or positional relationship based on that shown in the drawings, merely for ease of description herein and to simplify the description, and do not indicate or imply that the system or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanically or electrically coupled, may be in communication with each other within two elements, may be directly coupled, or may be indirectly coupled through an intermediary, as would be apparent to one of ordinary skill in the art.

An embodiment of the present utility model provides a support for a flexible driving element, as shown in fig. 1, 2A, 2B, 3A, 3B, 4A and 4B, including:

at least two connecting pieces 1 connected in series, wherein a first end surface 14A of each connecting piece 1 is provided with a groove 11, and a second end surface 14B is provided with a convex plate 12, and the first end surface and the second end surface are opposite end surfaces in the connecting piece 1; in the two adjacent connecting pieces 1, the convex plate 12 of one connecting piece goes deep into the groove 11 of the other connecting piece, and in the plane of the convex plate 12, the two connecting pieces 1 are rotatably connected.

Here, the support member is disposed at the articulation point of the bending end effector and is capable of guiding the bending of the flexible drive element and providing sufficient support force to perform the corresponding surgical function. The connecting piece 1 can be made of metal or plastic with high rigidity, is not easy to deform due to external force, can provide good support for the flexible driving element, and can effectively transmit the driving force required by the instrument and is not easy to generate destructive permanent deformation. Since two adjacent two connecting pieces 1 can relatively rotate by a certain angle, the whole multi-section connecting piece 1 can be bent to a set angle. Therefore, the device can be freely bent, can further go deep into a natural cavity for operation, and is very convenient to use.

Here, the specific form of the rotatable connection between the two connection members 1 is not limited, for example: the shaft is hinged or an articulation is formed between the connecting pieces 1, etc.

In this embodiment, as shown in fig. 4A and 4B, in the same connector 1, the convex plate 12 and the concave groove 11 are located in the same plane. Here, it is understood that the support is only able to bend in the plane in which the raised plate 12 and the recess 11 lie.

In this embodiment, as shown in fig. 3A and 3B, in the same connector 1, the plane of the convex plate 12 and the plane of the groove 11 are perpendicular to each other. Here, it is understood that the support is only capable of bending in any direction.

In this embodiment, each joint 1 is provided with a through hole 13 penetrating therethrough, and the through hole 13 extends from the bottom surface of the groove 11 to an end surface of the convex plate 12 away from the first end surface 14A; the through holes 13 of all the connectors 1 constitute support guide holes for the sliding assembly of the flexible driving element.

In this embodiment, as shown in fig. 2A and 2B, in the connector 1, the first end face 14A and the second end face 14B are both convex arc faces; in the adjacent two connecting members 1, the first end face 14A of one connecting member 1 and the second end face 14B of the other connecting member 1 always abut against each other during the mutual rotation of the two connecting members 1. Here, during rotation, the first end face 14A of one connector 1 and the second end face 14B of the other connector 1 always abut against each other, so that a support is formed between the two connectors 1 without affecting the mutual rotation of the two connectors 1.

In this embodiment, in the same connecting piece 1, the bus corresponding to the convex arc surface where the first end face 14A is located is parallel to the plane where the groove 11 is located; in the same connecting piece 1, the generatrix corresponding to the convex cambered surface where the second end face 14B is located is parallel to the plane where the convex plate 12 is located.

In this embodiment, as shown in fig. 3B and 4B, in the groove 11, a portion of the inner side surface close to the first end surface 14A is an inclined surface 111, and the inclined surface 111 is inclined in a direction away from the groove 11.

As shown in fig. 3A, 3B, 4A and 4B, in the connector 1, around the through hole 13, a plurality of holes are distributed along the circumference of the through hole 13, and the holes are consistent with the extending direction of the through hole 13, and when in use, nickel titanium alloy wires are penetrated into the holes, and bending of the flexible arms is controlled by stretching the wires.

A second embodiment of the present utility model provides an end effector, as shown in fig. 2A and 2B, including:

the support of the flexible driving element in the first two embodiments, wherein in one support, the convex plates 12 and the concave grooves 11 in all the connecting pieces 1 are located in the same plane; in the other support, the plane of the convex plate 12 of all the connecting pieces 1 is perpendicular to the plane of the groove 11; the two supports are connected in series.

In this embodiment, a connection block 2 is connected in series between the two support members.

An embodiment of the present utility model provides a cutting stapler, including: cutting stapling device 3 and the end effector of embodiment two.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A support for a flexible drive element, comprising:

at least two connecting pieces (1) connected in series, wherein a groove (11) is formed in a first end face (14A) of each connecting piece (1), and a convex plate (12) is arranged on a second end face (14B), and the first end face and the second end face are opposite end faces in the connecting piece (1);

in two adjacent connecting pieces (1), a convex plate (12) of one connecting piece extends into a groove (11) of the other connecting piece, and the two connecting pieces (1) are rotatably connected in a plane where the convex plate (12) is located.

2. The flexible drive element support of claim 1 wherein the flexible drive element support comprises a flexible drive element,

in the same connecting piece (1), the convex plate (12) and the groove (11) are positioned in the same plane.

3. The flexible drive element support of claim 1 wherein the flexible drive element support comprises a flexible drive element,

in the same connecting piece (1), the plane of the convex plate (12) and the plane of the groove (11) are perpendicular to each other.

4. The flexible drive element support of claim 1 wherein the flexible drive element support comprises a flexible drive element,

each section of connecting piece (1) is provided with a through hole (13) penetrating through the connecting piece, and the through hole (13) extends from the bottom surface of the groove (11) to the end surface, far away from the first end surface (14A), of the convex plate (12);

the through holes (13) of all the connecting pieces (1) form support guide holes for the sliding assembly of the flexible driving element.

5. A support for a flexible drive element according to claim 1, wherein:

in the connecting piece (1), the first end face (14A) and the second end face (14B) are both convex cambered surfaces;

in two adjacent connecting pieces (1), the first end face (14A) of one connecting piece (1) and the second end face (14B) of the other connecting piece (1) are always abutted against each other in the process of mutual rotation of the two connecting pieces (1).

6. The flexible drive element support of claim 5 wherein:

in the same connecting piece (1), a bus corresponding to the convex cambered surface where the first end face (14A) is positioned is parallel to a plane where the groove (11) is positioned;

in the same connecting piece (1), a bus corresponding to the convex cambered surface where the second end surface (14B) is positioned is parallel to the plane where the convex plate (12) is positioned.

7. A support for a flexible drive element according to claim 1, wherein:

in the groove (11), a portion of the inner side surface close to the first end surface (14A) is an inclined surface (111), and the inclined surface (111) is inclined in a direction away from the groove (11).

8. An end effector, comprising:

support for flexible driving elements according to any one of the claims 1-7, wherein in one support, the lugs (12) and the grooves (11) in all the connectors (1) lie in the same plane; in the other support piece, the plane of the convex plate (12) in all the connecting pieces (1) is perpendicular to the plane of the groove (11); the two supports are connected in series.

9. The end effector as set forth in claim 8 wherein:

a connecting block (2) is connected in series between the two supporting pieces.

10. A cutting stapler, comprising:

cutting and stapling device (3) and end effector according to claim 9.