CN216985002U

CN216985002U - Guiding tube and anastomat guiding device

Info

Publication number: CN216985002U
Application number: CN202122652352.3U
Authority: CN
Inventors: 陈新华; 李国新; 张惠敏; 余江; 胡彦锋; 林填; 陈豪; 陈佳仪
Original assignee: Southern Hospital Southern Medical University
Current assignee: Southern Hospital Southern Medical University
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-07-19
Anticipated expiration: 2031-11-01

Abstract

The utility model provides a guide tube and a guide device of an anastomat, which comprises a tube body, a fixing clamp and a pull wire, wherein the tube body comprises an inner end and an outer end which are communicated with each other, the fixing clamp is arranged in the tube body and is positioned at the inner end of the tube body, the fixing clamp comprises at least two clamping jaws, the inner end of the tube body is provided with an inlet matched with the position of the fixing clamp, one end of the pull wire is connected with the clamping jaws, the other end of the pull wire extends out of the outer end of the tube body, and the pull wire is used for driving the clamping jaws to be opened or closed. The adapter sleeve can be clamped by the fixing clamp, so that stable connection of the guide tube and the adapter sleeve is guaranteed, the traction wire can control the fixing clamp to be opened or closed, connection and release of the adapter sleeve are controllable, the guide effect of the adapter sleeve is improved, and the guide tube can be connected with the adapter sleeve more firmly.

Description

Guiding tube and anastomat guiding device

Technical Field

The utility model relates to the field of anastomosis instruments, in particular to a guide tube and an anastomat guide device.

Background

At present, laparoscopic full-gastric resection of the Overlap requires a small hole to be opened on the left side of the broken end of the esophagus, a 60mm anastomat is placed in a 12mm Trocar (sleeve) on the left side of the operator, a nail bin is inserted into the jejunum, a nail anvil is inserted into a small opening of the esophagus, and the esophageal jejunum side anastomosis is performed.

The anvil of the stapler, when inserted into the esophageal opening, may be inserted into a layer other than the esophageal mucosa, creating a "false lumen," a potential "false lumen" risk that limits the use of Overlap to some extent. A joint sleeve is usually designed in the current surgical scheme, the joint sleeve is sleeved on a nail anvil, the nail anvil is guided to be in butt joint with a gastric tube, and the nail anvil is guided to be inserted into an esophagus through the gastric tube.

However, since the connection between the conventional gastric tube and the joint sleeve is not sufficiently secure, it is difficult to guide the stapler well for the esophageal sidewall opening, which prolongs the completion time of this step. Meanwhile, because the traditional stomach tube is relatively soft and the direction is easy to change, the anastomat is inaccurate and needs more shearing when cutting the side wall of the esophagus, the injury to the esophagus is large, and the bad healing risk of an anastomotic stoma is increased. Therefore, there is a clinical need for improving the Overlap anastomosis, improving the precision and efficiency of esophageal sidewall shearing, and reducing the damage to the esophagus.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a guide tube and a guide device of a anastomat, wherein the guide tube can be more firmly connected with a joint sleeve.

The guide tube provided by the utility model comprises a tube body, a fixing clamp and a traction wire, wherein the tube body comprises an inner end and an outer end which are mutually communicated, the fixing clamp is arranged in the tube body and is positioned at the inner end of the tube body, the fixing clamp comprises at least two clamping jaws, an inlet matched with the fixing clamp in position is formed in the inner end of the tube body, one end of the traction wire is connected with the clamping jaws, the other end of the traction wire extends out of the outer end of the tube body, and the traction wire is used for driving the clamping jaws to be opened or closed.

The guide tube provided by the utility model at least has the following technical effects: the adapter sleeve can be clamped by the fixing clamp, so that stable connection of the guide tube and the adapter sleeve is guaranteed, the traction wire can control the fixing clamp to be opened or closed, connection and release of the adapter sleeve are controllable, the guide effect of the adapter sleeve is improved, and the guide tube can be connected with the adapter sleeve more firmly.

According to some embodiments of the utility model, one end of the jaw is attached to the sidewall of the tubular body and the pull wire is attached to the other end of the jaw.

According to some embodiments of the utility model, the clamping jaw is resilient.

According to some embodiments of the utility model, the traction wire comprises a main wire and a spare wire, one of the main wire and at least one of the spare wires being connected to each of the jaws.

According to some embodiments of the utility model, each of the clamping jaws is arranged in a circumferential array.

According to some embodiments of the utility model, the diameter of the inlet is adapted to the engagement sleeve.

According to some embodiments of the utility model, the body inner end includes a guide head, the guide head having a diameter that gradually decreases in a direction from the body outer end to the body inner end.

According to some embodiments of the utility model, the edges of the inner end of the body are smoothly blended.

According to some embodiments of the utility model, the material of the pipe body is polyvinyl chloride material.

The anastomat guide device provided by the utility model comprises an adapter sleeve and the guide tube provided by the utility model.

According to the anastomat guide device provided by the utility model, at least the following technical effects are achieved: the adapter sleeve is connected with the nail anvil, the guide tube is connected with the adapter sleeve, and by using the guide tube provided by the utility model, the anastomat guide device can stably guide the anastomat to perform esophageal side wall opening.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an axial schematic view of the stapler guide device of the present invention;

FIG. 2 is an enlarged view of a portion of the area A in FIG. 1;

FIG. 3 is a schematic axial view of the retaining clip of the present invention in an open position;

fig. 4 is an isometric view of the retaining clip of the present invention in a closed position.

Reference numerals:

body 100, guide head 101, clamping jaw 200, pull wire 300, clutch collar 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the essential numbers, and greater than, less than, etc. are understood as including the essential numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise specifically limited, terms such as set, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.

The guide tube provided by the utility model comprises a tube body 100, a fixing clamp and a pull wire 300, wherein the tube body 100 comprises an inner end and an outer end which are communicated with each other, the fixing clamp is arranged in the tube body 100 and is positioned at the inner end, the fixing clamp comprises at least two clamping jaws 200, the inner end of the tube body is provided with an inlet matched with the position of the fixing clamp, one end of the pull wire 300 is connected with the clamping jaws 200, the other end of the pull wire 300 extends out of the outer end of the tube body, and the pull wire 300 is used for driving the clamping jaws 200 to open or close.

According to the guide tube provided by the utility model, the fixing clamp can clamp the adapter sleeve 400, so that the stable connection between the guide tube and the adapter sleeve 400 is ensured, the pull wire 300 can control the opening or closing of the fixing clamp, the connection and the release of the adapter sleeve 400 are controllable, the guide effect of the adapter sleeve 400 is improved, and the guide tube can be more firmly connected with the adapter sleeve 400.

When the anastomat is used, the nail anvil of the anastomat is connected to the joint sleeve 400 in vitro, the joint sleeve 400 is inserted into the inlet of the guide tube under the view of a laparoscope, the fixing clamp is controlled to be in an open state at the moment, the joint sleeve 400 drives the anastomat to move to a proper position and then is controlled to be in a closed state, the fixing clamp is tightly connected with the joint sleeve 400, esophagus-jejunum side anastomosis is further completed, excessive shearing of the anastomat when the esophagus side wall is cut is avoided, the shearing accuracy and efficiency of the esophagus side wall are improved, damage to the esophagus is reduced, and the risk of poor healing of an anastomotic stoma after an operation is reduced. After the anastomosis is finished, the fixing clamp is controlled to be opened again, meanwhile, the user takes the joint sleeve 400 out of the guide tube by controlling the anastomat in vitro, and then the joint sleeve and the anastomat are taken out together through the abdominal cavity, and finally, the user takes the guide tube out through the oral cavity of the patient, so that the operation is simple, convenient and easy.

It will be appreciated that in some embodiments the pull wire 300 may be responsible for driving the jaws 200 open, and in other embodiments the pull wire 300 may be responsible for driving the jaws 200 closed. For example, the initial state of the clamp is designed as a closed state, and when the pull wire 300 pulls the jaws 200, the positions of the jaws 200 are changed to switch the clamp to an open state, and when the pull wire 300 releases the pulling of the jaws 200, the jaws 200 are reset to return the clamp to the closed state.

The pull wire 300 may pull the jaws 200 in a variety of embodiments, in some embodiments one end of the jaws 200 is attached to a sidewall of the tubular body 100 and the pull wire 300 is attached to the other end of the jaws 200. At this time, the clamping jaw 200 forms a cantilever beam structure, and when the traction wire 300 draws the unconstrained end of the clamping jaw 200, the clamping jaw 200 can be effectively pulled, so that the position of the clamping jaw 200 is changed. Of course, the pull wire 300 is not necessarily connected to all the jaws 200, and only some of the jaws 200 may be connected to the pull wire 300, and the state of the clamp may be switched by changing the positions of some of the jaws 200.

It will be appreciated that there are many possible implementations of the positional variation of the jaws 200 and repositioning of the jaws 200. In some embodiments, the jaws 200 are resilient. The clamping jaw 200 may be displaced by its elastic deformation, or may be automatically restored to its original state after the traction force of the traction wire 300 is lost. In some embodiments, it may be that the tube 100 has elasticity, and the tube 100 deforms when traction force is applied and the tube 100 recovers when traction force is lost, thereby opening and closing the fixing clip. In some embodiments, the retaining clip may be provided with additional resilient members to accomplish repositioning of the jaws 200.

In some embodiments, the pull wire 300 includes a main wire and a spare wire, one connected to each jaw 200. The spare wire is arranged to share the stress of the main wire, and the accidental breakage of the traction wire 300 is avoided.

In some embodiments, the individual clamping jaws 200 are arranged in a circumferential array. For example, referring to fig. 2, the mounting clip includes two centrally symmetric clamping jaws 200.

In some embodiments, the diameter of the inlet is adapted to the adapter sleeve 400. Since the fixing clip is located inside the pipe body 100, the inlet has a small diameter, which can reduce the shaking of the engaging sleeve 400 after insertion, so that the engaging sleeve 400 can be more accurately matched with the fixing clip.

In some embodiments, the body inner end includes a guide head 101, and the diameter of the guide head 101 gradually decreases in a direction from the body outer end to the body inner end. The tapered design of the guide head 101 can facilitate the introduction of the guide tube into the body. In some embodiments, the edges of the body inner end are smoothly transitioned. Can avoid scratching human tissues.

In some embodiments, the material of the tube 100 is polyvinyl chloride. Polyvinyl chloride has certain hardness, can solve the problem that traditional stomach tube is comparatively soft, the direction is changeful, improves the precision and the reliability of guiding tube guide.

The guide device for the anastomat provided by the utility model comprises an adapter sleeve 400 and a guide tube provided by the utility model.

According to the guide device of the anastomat provided by the utility model, the joint sleeve 400 is connected with the nail anvil, and the guide tube is connected with the joint sleeve 400.

The guide tube provided according to the present invention will be described in detail in one specific embodiment with reference to fig. 1 to 4. It is to be understood that the following description is illustrative only and is not intended as a specific limitation of the utility model.

The guide tube includes a tube body 100, a fixing clip, and a traction wire 300.

The tube body 100 includes an inner end and an outer end which are communicated with each other, the inner end includes a guide head 101, and the diameter of the guide head 101 is gradually reduced along the direction from the outer end to the inner end. The material of the tube 100 is polyvinyl chloride.

The fixation clamp is installed in body 100, and the fixation clamp is located internal, and the fixation clamp includes two centrosymmetric clamping jaw 200, and clamping jaw 200 has elasticity, and clamping jaw 200's cross section is the polygon, and clamping jaw 200's one end is connected on the lateral wall of body 100, and the entry with the position looks adaptation of fixation clamp is seted up to guide head 101.

A pull wire 300 is attached to the other end of the jaw 200, the pull wire 300 extending from the outer end of the body, the pull wire 300 being used to actuate the jaw 200 to open or close. The pulling wire 300 comprises a main wire and a spare wire, and each clamping jaw 200 is connected with one main wire and one spare wire.

The beneficial effects of the utility model are:

the nail anvil of the anastomat is connected with a joint sleeve 400, the joint sleeve 400 is inserted into the inlet of a guide pipe, a user pulls a pull wire 300 to enable the clamping jaws 200 on the left side and the right side to deform respectively, at the moment, the fixing clamp is changed from a closed state to an open state, after the joint sleeve 400 drives the anastomat to move to a proper position, the user loosens the pull wire 300 to enable the fixing clamp to be restored to the closed state, the fixing clamp is tightly connected with the joint sleeve 400, the esophagus-jejunum side anastomosis is further completed, the accuracy and the efficiency of shearing the esophagus side wall are improved, and the damage to the esophagus is reduced. The utility model has simple operation and improves the operation efficiency and safety.

The utility model is composed of a polyvinyl chloride hard tube, has soft texture, can adapt to the size of the esophagus, does not bring burden to the operation of pulling the nail anvil into the esophagus by the joint sleeve 400, is not easy to damage human tissues, has increased hardness of materials, more stable shape and easier control of direction compared with the traditional stomach tube, and is more beneficial to guiding the opening of the side wall of the esophagus.

The guide head 101 of the present invention facilitates accurate, centered insertion of the engaging sleeve 400 into the guide tube; in addition, the guide head 101 is relatively round and smooth, and does not cause additional burden and damage to the esophagus.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A guide tube, comprising:

a tube body including an inner end and an outer end that are communicated with each other;

the fixing clamp is arranged in the tube body and positioned at the inner end of the tube body, the fixing clamp comprises at least two clamping jaws, and the inner end of the tube body is provided with an inlet matched with the fixing clamp in position;

the one end of pull wire is connected the clamping jaw, the other end of pull wire is followed external end stretches out, the pull wire is used for driving the clamping jaw is opened or is closed.

2. The guide tube of claim 1, wherein: one end of the clamping jaw is connected to the side wall of the pipe body, and the traction line is connected to the other end of the clamping jaw.

3. The guide tube of claim 1 or 2, wherein: the clamping jaw has elasticity.

4. The guide tube of claim 1 or 2, wherein: the traction line comprises a main line and a spare line, and each clamping jaw is connected with one main line and at least one spare line.

5. The guide tube of claim 1, wherein: each of the jaws is arranged in a circumferential array.

6. The guide tube of claim 1, wherein: the diameter of the inlet is matched with that of the joint sleeve.

7. The guide tube of claim 1, wherein: the inner end of the body comprises a guide head, and the diameter of the guide head is gradually reduced along the direction from the outer end of the body to the inner end of the body.

8. The guide tube of claim 6, wherein: the edges of the inner end of the body are in smooth transition.

9. The guide tube of claim 1, wherein: the pipe body is made of polyvinyl chloride materials.

10. A stapler-guiding device, characterized by: the stapler guide device comprises an adapter sleeve and a guide tube according to any one of claims 1 to 9.