CN219271013U

CN219271013U - Flexible gun rod supporting piece and anastomat

Info

Publication number: CN219271013U
Application number: CN202222332035.8U
Authority: CN
Inventors: 龚毓; 罗兰
Original assignee: Hunan Huawai Medical Technology Co ltd
Current assignee: Hunan Huawai Medical Technology Co ltd
Priority date: 2022-08-17
Filing date: 2022-09-01
Publication date: 2023-06-30
Anticipated expiration: 2032-09-01

Abstract

The utility model discloses a flexible gun rod supporting piece, which is characterized in that a plurality of connecting joints are sequentially connected to form a bending main body, the bending main body is connected with an executing piece for supporting an anastomat, the angle adjusting structure drives two adjacent connecting joints to bend so as to drive the bending main body to bend and turn, the anastomosis angle of the anastomat is adjusted, and as the plurality of connecting joints can form a plurality of pairs of two adjacent connecting joints, the bending and turning of the bending main body at a large angle can be realized through the bending and turning of the two adjacent connecting joints at a small angle, so that the anastomosis angle adjusting range of the anastomat is wide, meanwhile, the bending and turning range of a single pair of two adjacent connecting joints is small, and the two adjacent connecting joints can form a plurality of angle adjusting intervals so as to realize the accurate adjustment of the anastomosis angle of the anastomat. In addition, the utility model also discloses an anastomat comprising the flexible gun rod supporting piece.

Description

Flexible gun rod supporting piece and anastomat

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a flexible gun rod support. In addition, the utility model also relates to a anastomat comprising the flexible gun rod supporting piece.

Background

Anastomat is commonly used in endoscopic surgery. The laparoscopic surgery is to transmit images of various organs in the abdominal cavity photographed by a camera inserted into the abdominal cavity to a screen through a small incision in the abdominal or thoracic cavity, and a doctor performs the surgery by observing the images and operating the surgical instrument outside the body through a channel established in the abdominal/thoracic cavity wall. A stapler is one of the surgical instruments that performs an extracorporeal operation.

Anastomat is a device used in medicine to replace manual suturing, and generally consists of an executing piece, a cutting knife, a supporting piece and other structures. In operation, the tissue to be anastomosed is clamped and snapped in the executing piece (comprising a nail bin assembly and a nail felt assembly), the handle of the instrument gun is pressed down to drive the cutting knife to separate the tissue, meanwhile, the anastomotic nail arranged in the nail bin assembly is pushed out to anastomose the tissue, and the supporting piece is used for connecting and supporting the executing piece and the cutting knife.

However, the support and the actuator in the existing anastomat mainly adopt the following two connection modes: (1) The linear anastomat is fixedly connected with the support piece and the execution piece, and the linear anastomat can not adjust the anastomosis angle of the execution piece through the support piece; (2) The end of the supporting piece is provided with a deflection anastomat which a steering mechanism is connected with the executing piece, and the deflection anastomat can adjust the anastomosis angle of the executing piece through the supporting piece, but the adjustment range of the anastomosis angle of the anastomat is narrow, usually 60 degrees at most and can not accurately adjust the steering angle due to the fixed bending (bending) radius of the steering mechanism and the small bending (bending) radius. Because the anastomotic angle is limited by the abdominal cavity or the intrathoracic space, the anastomotic angle adjusting range of the traditional anastomat is narrow, and meanwhile, the anastomotic angle cannot be accurately adjusted, so that the components at the operation part cannot be effectively clamped, cut and anastomosed, and the operation effect is poor.

Disclosure of Invention

The utility model provides a flexible gun rod supporting piece and an anastomat, which are used for solving the technical problems that the anastomat in the prior art is narrow in anastomotic angle adjusting range and cannot be accurately adjusted.

According to one aspect of the present utility model, there is provided a flexible gun rod support comprising a bending main body flexibly arranged for connecting and supporting an actuator of a stapler, the bending main body comprising a plurality of connecting joints sequentially connected in a length direction and an angle adjusting structure respectively connected with the plurality of connecting joints for driving the bending of two adjacent connecting joints to realize bending and steering of the bending main body so as to accurately adjust an anastomosis angle of the actuator of the stapler.

As a further improvement of the above technical scheme:

further, the angle adjusting structure comprises a steering stretching rope which is movably penetrated in the length direction of the bending main body and is used for applying force and traction along the length direction of the bending main body to drive the two adjacent connecting joints to be relatively close so as to drive the bending main body to bend, and an elastic resetting piece which is sleeved on the steering stretching rope and is fixedly connected with the two adjacent connecting joints respectively and is used for resetting and straightening after the two adjacent connecting joints are bent.

Further, spherical surface matching is adopted between two adjacent connecting joints, and the bending main body further comprises an elastic isolation film which is sleeved outside the connecting joints in an elastic stretching manner along the length direction of the bending main body and is used for fixing and sealing the connecting joints.

Further, a connecting ball head is arranged at a first end in the length direction of the connecting joint, and a connecting ball groove for accommodating the connecting ball heads of adjacent connecting joints to realize spherical surface matching steering is arranged at a second end in the length direction of the connecting joint.

Further, the connecting joint comprises a connecting part which is fixedly connected with the connecting ball head and is sunken to form a connecting ball groove.

Further, the edge of the connecting portion comprises a first accommodating cavity which is formed along the length direction of the bending main body and used for accommodating the steering stretching rope, and the first accommodating cavities on the two adjacent connecting portions are correspondingly distributed.

Further, a plurality of steering stretching ropes are distributed at intervals along the circumferential direction of the connecting part, and the steering stretching ropes are distributed in one-to-one correspondence with the first accommodating cavities.

Further, a connecting ball of a connecting joint connected with the end part of the elastic isolation film in the length direction in the bending main body extends out of the elastic isolation film and is used for connecting an executing piece of the anastomat.

Further, the middle part of the connecting joint comprises a second accommodating cavity which is formed along the length direction of the bending main body, and the second accommodating cavities on two adjacent connecting joints are correspondingly distributed and form functional channels.

According to another aspect of the present utility model there is also provided a stapler comprising a flexible gun rod support as described above.

The utility model has the following beneficial effects:

according to the flexible gun rod supporting piece, the bending main body is formed through the plurality of connecting joints which are sequentially connected, the actuating piece of the anastomat is connected and supported through the bending main body which can be arranged in a bending mode, the angle adjusting structure drives the adjacent two connecting joints to bend so as to drive the bending main body to bend and steer, the anastomosis angle of the anastomat is adjusted, and as the plurality of connecting joints can form a plurality of pairs of adjacent two connecting joints, the bending steering of the bending main body with a large angle can be realized through the bending steering of the plurality of pairs of adjacent two connecting joints with a small angle, so that the anastomosis angle adjusting range of the anastomat is wide, meanwhile, the bending steering range of the single pair of adjacent two connecting joints is small, and the plurality of pairs of adjacent two connecting joints can form a plurality of angle adjusting intervals so as to realize the accurate adjustment of the anastomosis angle of the anastomat; according to the technical scheme, the plurality of connecting joints are connected to form the bending main body, the bending angle is adjusted through the angle adjusting structure, compared with the prior art, the bending radius of the bending main body is large, the anastomotic angle adjusting range of the anastomat is wide, the bending of the bending main body is realized by two adjacent connecting joints, the accurate adjustment of the anastomotic angle of the anastomat can be realized, in order to effectively clamp, cut and anastomose components of an operation part in endoscopic surgery, the surgical effect is good, the practicability is strong, and the surgical stapler is suitable for wide popularization and application.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic cross-sectional view of a flexible firearm support of a preferred embodiment of the utility model.

Legend description:

100. bending the body; 110. a connecting joint; 111. connecting a ball head; 112. a connecting ball groove; 113. a connection part; 114. a first accommodation chamber; 120. an elastic isolation film; 130. turning the tensile cord; 140. an elastic reset piece; 200. the catheter is bent.

Detailed Description

Embodiments of the utility model are described in detail below with reference to the attached drawing figures, but the utility model can be practiced in a number of different ways, as defined and covered below.

As shown in fig. 1, the flexible gun rod supporting member of the present embodiment includes a bending main body 100 which is flexibly arranged and is used for connecting and supporting an actuating member of the anastomat, wherein the bending main body 100 includes a plurality of connecting joints 110 which are sequentially connected along a length direction, and an angle adjusting structure which is respectively connected with the plurality of connecting joints 110 and is used for driving two adjacent connecting joints 110 to bend so as to realize bending and steering of the bending main body 100 and further accurately adjust an anastomosis angle of the actuating member of the anastomat. Specifically, the flexible gun rod supporting piece of the utility model forms the bending main body 100 through the plurality of connecting joints 110 which are sequentially connected, so as to connect and support the executing piece of the anastomat through the bending main body 100 which can be arranged in a bending way, then drives the adjacent two connecting joints 110 to bend through the angle adjusting structure, so as to drive the bending main body 100 to bend and turn, and realizes the adjustment of the anastomat angle, and as the plurality of connecting joints 110 can form a plurality of pairs of adjacent two connecting joints 110, the bending and turning of the bending main body 100 in a large angle can be realized through the bending and turning of the plurality of pairs of adjacent two connecting joints 110 in a small angle, so that the anastomat angle adjusting range of the anastomat is wide, meanwhile, the bending and turning range of the single pair of adjacent two connecting joints 110 is small, and the plurality of pairs of adjacent two connecting joints 110 can form a plurality of angle adjusting sections, so as to realize the accurate adjustment of the anastomat angle; the bending main body 100 is formed by connecting the plurality of connecting joints 110, the bending angle is adjusted through the angle adjusting structure, compared with the prior art, the bending radius of the bending main body 100 is large, the anastomotic angle adjusting range of the anastomat is wide, the bending of the bending main body 100 is realized by the two adjacent connecting joints 110, the accurate adjustment of the anastomotic angle of the anastomat can be realized, the components at the operation position can be effectively clamped, cut and anastomosed in the endoscopic operation, the operation effect is good, the practicability is strong, and the surgical stapler is suitable for wide popularization and application. It should be understood that the larger the length dimension of the connection joint 110, the larger the bending (bending) radius, and the smaller the length dimension, the smaller the bending (bending) radius, and thus, can be designed according to the use requirement; it is also possible to arrange that the length of the connection joint 110 gradually increases, or gradually decreases, or the middle size gradually decreases toward both ends, or the middle size gradually increases toward both ends. It should be appreciated that bending of adjacent connector segments 110 or bending of adjacent connector segments 110 may be effected in the same or similar manner to effect bending of curved body 100.

As shown in fig. 1, in the present embodiment, the angle adjusting structure includes a steering stretching rope 130 movably penetrating the plurality of connection joints 110 along the length direction of the bending main body 100 for exerting force and traction along the length direction of the bending main body 100 to drive the two adjacent connection joints 110 to be relatively close to each other so as to drive the bending main body 100 to bend, and an elastic restoring member 140 sleeved on the steering stretching rope 130 and fixedly connected with the two adjacent connection joints 110 respectively and used for restoring and straightening the two adjacent connection joints 110 after bending. Specifically, when the anastomosis angle of the anastomat needs to be adjusted, the steering stretching ropes 130 are pulled by applying force so as to bend and relatively approach the adjacent two connecting joints 110, and further bend and steer the bending main body 100, thereby realizing adjustment of the anastomosis angle of the anastomat; when the traction steering stretching rope 130 is not applied, the elastic reset piece 140 enables the two connecting joints 110 to be reset and straightened, so that other media can be conveniently penetrated in the operation process. Alternatively, the bending direction angle of the bending main body 100 is adjusted by stretching the steering tension rope 130 by the driving motor. Alternatively, the elastic restoring member 140 is a compression spring. Optionally, the angle adjusting structure is provided with a plurality of groups along the circumferential direction, and the plurality of groups are uniformly distributed and mutually form a limit of circumferential rotation. Alternatively, the first end of the steering tension rope 130 is fixedly connected to the connecting joint 110 of the first joint, and the second end is connected to a control device for applying force to pull the steering tension rope 130. Optionally, the elastic restoring member 140 is a rubber spring, when the bending main body 100 is bent upwards, the upper ends of two adjacent connecting joints 110 are close to each other, and the elastic restoring member 140 arranged at the upper ends of the connecting joints 110 is compressed, and is stretched away from the elastic restoring member 140 arranged at the lower ends of the connecting joints 110, so that the restoring and straightening of the bending main body 100 is realized when the steering stretching rope 130 is pulled without traction and force application.

As shown in fig. 1, in this embodiment, two adjacent connection joints 110 are in spherical fit, and the bending main body 100 further includes elastic isolation films 120 which are elastically stretched along the length direction of the bending main body 100 and are respectively and fixedly sleeved outside the connection joints 110 for fixing and sealing the connection joints 110. Specifically, the adjacent two connection joints 110 are spherically matched, so that the connection joints 110 can rotate to bend and turn, the elastic isolation film 120 is elastically stretched when the adjacent two connection joints 110 are bent, the connection joints 110 are fixed and sealed, and the bending and turning of the bending main body 100 are not interfered at the same time, so that the circumferential rotation and the relative bending or bending between the adjacent two connection joints 110 are limited to a certain extent; while also being able to place adjacent two of the connection nodes 110 in force apart from one another. Alternatively, in another embodiment, two ends of the connection joint 110 are provided with connection rings, and the connection rings of two adjacent connection joints 110 are sleeved with each other. It should be understood that the bending (bending) radius, as well as the bending (bending) range, is also associated with the spherical radius.

As shown in fig. 1, in the present embodiment, a first end in the length direction of the connection joint 110 is provided with a connection ball head 111, and a second end in the length direction of the connection joint 110 is provided with a connection ball groove 112 for accommodating the connection ball head 111 of an adjacent connection joint 110 to realize spherical surface mating steering. Specifically, the outer spherical surface of the connection ball 111 and the inner spherical surface of the connection ball groove 112 are engaged with each other, so that the adjacent two connection joints 110 can be bent and turned to adjust the turning angle. Alternatively, in another embodiment, in two adjacent connection joints 110, two ends of one connection joint 110 are respectively provided with a connection ball 111, and two ends of the other connection joint 110 are respectively provided with a connection ball groove 112. Optionally, the connecting ball groove 112 covers a region greater than half the spherical surface region (cross-section) of the connecting ball head 111 to achieve a snap fit between each other and avoid disengagement. As shown in fig. 1, in the present embodiment, the connection joint 110 includes a connection portion 113 fixedly connected with the connection ball 111 and recessed to form a connection ball groove 112. Specifically, the connecting portion 113 is recessed to form the connecting ball groove 112, and the connecting portion 113 and the connecting ball 111 are fixedly connected in an integrally formed manner. Optionally, a limiting structure for limiting the rotation range between the connecting ball 111 and the connecting portion 113 is provided on the connecting ball 111, so as to avoid the connecting ball 111 from being separated (separated from the limiting position) due to excessive rotation.

As shown in fig. 1, in this embodiment, the edge of the connecting portion 113 includes a first accommodating cavity 114 that is opened along the length direction of the bending main body 100 and is used for accommodating the steering tension rope 130, and the first accommodating cavities 114 on two adjacent connecting portions 113 are correspondingly arranged. Specifically, the steering tension rope 130 is accommodated by the first accommodating chamber 114, and the steering tension rope 130 is pulled by applying force to drive the two connecting parts 113 to approach each other so as to bend the two adjacent connecting joints 110; when the first accommodating cavity 114 is opened at the edge of the connecting portion 113, the force is applied to pull the steering tension rope 130 to apply force to the edge of the connecting portion 113, so that a relatively large moment can be formed to drive the two adjacent connecting joints 110 to bend. It should be appreciated that the end of the diverting tension rope 130 is provided with a fixed head protruding outside the connecting part 113, the outer diameter of the fixed head being greater than the inner diameter of the first receiving chamber 114.

As shown in fig. 1, in this embodiment, a plurality of steering tension ropes 130 are arranged at intervals along the circumferential direction of the connection portion 113, and the steering tension ropes 130 are arranged in one-to-one correspondence with the first accommodating chambers 114 on the connection portion 113. Specifically, when the length direction of the bending main body 100 is horizontally laid, the bending main body 100 bends upward to turn when the turning tensile cord 130 located in the upper end portion of the connection portion 113 is forcibly pulled, and bends downward when the turning tensile cord 130 located in the lower end portion of the connection portion 113 is forcibly pulled, that is, bending of the bending main body 100 in multiple directions can be achieved by laying a plurality of turning tensile cords 130. Alternatively, the end surface of the elastic restoring member 140 is fixedly connected with the connecting portion 113; or the end surface of the connecting portion 113 is provided with a clamping groove for accommodating and clamping the elastic restoring member 140.

As shown in fig. 1, in the present embodiment, a connecting ball 111 of a connecting joint 110 connected to a longitudinal end of an elastic isolation membrane 120 in a bending body 100 extends out of the elastic isolation membrane 120 and is used for connecting an actuator of a stapler. Specifically, the bending body 100 is connected to the actuator of the stapler through a connecting ball 111 protruding outside the elastic isolating membrane 120.

As shown in fig. 1, in this embodiment, the middle portion of the connection joint 110 includes a second accommodating cavity formed along the length direction of the bending main body 100, and the second accommodating cavities on two adjacent connection joints 110 are correspondingly arranged and form functional channels. Specifically, the bending conduit 200 may be disposed in the functional channel, and the compressed gas or the hydraulic medium is transmitted through the bending conduit 200 to drive the executing member to work, or the cleaning solution is transmitted to clean the executing member, and the second accommodating cavity is disposed in the middle, so that the bending conduit 200 and the bending main body 100 bend to the same angle, the bending conduit 200 is prevented from being broken due to overlarge bending angle, smooth gas-liquid transmission is ensured, and meanwhile, the bending conduit 200 can also restrict each connecting joint 110, and each connecting joint 110 is prevented from being separated from each other; a power-on wire may also be routed within the functional channel to transmit operating power to the actuator.

The anastomat of the embodiment comprises the flexible gun rod supporting piece. Specifically, through adopting above-mentioned flexible stock support piece, make the accommodation of anastomotic angle wide, and anastomotic angle can be accurately regulated to in the laparoscopic surgery, carry out centre gripping, cutting and anastomotic to the subassembly of operation position effectively, the operation is effectual, and the practicality is strong, is suitable for extensive popularization and application.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The flexible gun rod supporting piece is characterized by comprising a bending main body (100) which is flexibly arranged and used for being connected with an actuating piece of a supporting anastomat, wherein the bending main body (100) comprises a plurality of connecting joints (110) which are sequentially connected in the length direction, and an angle adjusting structure which is respectively connected with the plurality of connecting joints (110) and is used for driving two adjacent connecting joints (110) to bend so as to realize bending and steering of the bending main body (100) and further accurately adjust the anastomosis angle of the actuating piece of the anastomat.

2. The flexible gun rod supporting member according to claim 1, wherein the angle adjusting structure comprises a steering stretching rope (130) movably penetrating the plurality of connecting joints (110) along the length direction of the bending main body (100) and used for applying force and pulling along the length direction of the bending main body (100) so as to drive the two adjacent connecting joints (110) to be relatively close to each other and further drive the bending main body (100) to bend, and an elastic resetting member (140) sleeved on the steering stretching rope (130) and fixedly connected with the two adjacent connecting joints (110) respectively and used for resetting and straightening the two adjacent connecting joints (110) after bending.

3. The flexible lance holder according to claim 2, wherein the adjacent two connecting joints (110) are spherically coupled, the bending body (100) further comprising an elastic isolation membrane (120) for fixing and sealing the connecting joints (110) and elastically stretchable around the plurality of connecting joints (110) along the length direction of the bending body (100).

4. A flexible lance holder according to claim 3, characterised in that a first lengthwise end of the joint (110) is provided with a joint ball (111) and a second lengthwise end of the joint (110) is provided with a joint ball groove (112) for receiving a joint ball (111) of an adjacent joint (110) for effecting a spherical mating steering.

5. A flexible lance holder according to claim 4, wherein the connection joint (110) comprises a connection part (113) fixedly connected to the connection bulb (111) and recessed to form a connection bulb recess (112).

6. The flexible lance holder according to claim 5, wherein the edges of the connecting parts (113) comprise first receiving cavities (114) provided along the length of the curved body (100) for receiving the steering tension ropes (130), the first receiving cavities (114) of adjacent connecting parts (113) being correspondingly arranged.

7. The flexible lance holder according to claim 6, wherein a plurality of diverting tension ropes (130) are arranged at intervals along the circumference of the connecting part (113), the diverting tension ropes (130) being arranged in a one-to-one correspondence with the first receiving cavities (114).

8. The flexible lance holder according to claim 4, wherein the connecting bulb (111) of the connecting joint (110) in the bending body (100) connected to the longitudinal end of the elastic isolation diaphragm (120) extends outside the elastic isolation diaphragm (120) and is adapted to be connected to an actuator of a stapler.

9. A flexible lance holder according to claim 2, wherein the middle part of the connecting section (110) comprises a second receiving cavity open along the length of the curved body (100), the second receiving cavities on adjacent connecting sections (110) being arranged in correspondence and forming the functional channel.

10. A stapler comprising the flexible lance support according to any one of claims 1 to 9.