Endoscope cannula for forehead soft tissue tumor excision

Abstract

The utility model discloses a forehead soft tissue tumor resection endoscope cannula, which comprises a puncture cannula, the front end of the puncture cannula is provided with a spreader, the rear end of the puncture cannula is provided with an incision protection plate, and the incision protection plate and the axis of the puncture cannula form an included angle of 60 degrees. The dilator end of the endoscopic cannula is inserted into a skin incision, the front end of the puncture cannula is pushed to a to-be-cut tumor site, the puncture cannula is provided with a hollow instrument channel, the instrument channel is communicated with the front end of the puncture tube and the incision protection plate, and when the front end of the puncture cannula reaches the to-be-cut tumor site, the incision protection plate is adjusted to be parallel to the forehead face in the tangential direction, and the incision protection plate is pushed to the to-be-cut tumor site. The effect of protecting the skin incision is achieved. Meanwhile, surgical instruments such as an endoscope can be conveyed to the site where the tumor is to be cut through the instrument channel for surgical operation. The incision protection plate of the endoscope cannula can be effectively attached to the frontal face hairline position, an incision is effectively protected, and therefore implementation of a follow-up endoscope operation is more convenient, and the problems existing in the prior art are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, especially a kind of frontal soft tissue tumor resection endoscope cannula. BACKGROUND

[0002] Lipoma is a common benign tumor of soft tissue, caused by abnormal proliferation of mature adipocytes. The tumor will cause compression to the surrounding tissue, causing swelling of the forehead. For superficial lipoma, usually no treatment is needed, only regular monitoring of its size change is needed; deep lipoma or larger may need to be surgically removed. In the surgical resection of frontal skin, soft tissue or frontal bone tumor represented by lipoma, the traditional method is to make a skin incision directly on the surface of the tumor with a scalpel. The biggest problem with this method is that the surgical scar will be left on the frontal face after the wound heals.

[0003] To solve this problem, endoscopic surgery through the frontal hairline hidden incision is gradually promoted in clinical practice. However, in actual application, we found that endoscopic surgery through the hairline incision increases the distance of subcutaneous dissection to the tumor, so a suitable endoscopic cannula is needed to protect the surrounding tissue and assist in completing the surgery. In the absence of a suitable endoscopic cannula protection device, the surgeon can use the puncture cannula of the gynecological laparoscope minimally invasive as disclosed in the authorized announcement No. CN212466115U. The puncture cannula includes a puncture cannula with a working channel, a gas injection tube is provided on the puncture cannula, the gas injection tube is in communication with the working channel, and a positioning and sealing assembly with variable outer diameter is connected to the outer surface of the puncture cannula. Increasing the outer diameter of the positioning and sealing assembly allows the positioning and sealing assembly to fit the skin incision of the patient. In actual use, since the frontal hairline usually has a special curvature, the protective sleeve of the conventional laparoscopic cannula cannot fit the skin incision at this location, so it is not convenient for subsequent endoscopic surgery. SUMMARY

[0004] The main purpose of the utility model is to provide a frontal soft tissue tumor resection endoscope cannula, which aims to solve the technical problem that the protective sleeve of the existing laparoscopic cannula cannot fit the skin incision at this location when used for endoscopic surgery through the frontal hairline hidden incision, which is not convenient for subsequent endoscopic surgery.

[0005] To achieve the above-mentioned purpose, the utility model provides a frontal soft tissue tumor resection endoscope cannula, which comprises a puncture cannula, the front end of the puncture cannula is provided with a dilator, the rear end of the puncture cannula is provided with an incision protection plate, and the incision protection plate forms a 60-degree angle with the axis of the puncture cannula.

[0006] Optionally, the puncture sleeve comprises a first sleeve and a second sleeve, the rear end of the first sleeve is fixedly connected with the incision protection plate, the inner wall of the first sleeve is provided with a involute arc-shaped groove, the second sleeve is sleeved in the first sleeve, the outer side wall of the second sleeve is provided with an involute arc-shaped convex wall matched with the involute arc-shaped groove, and the second sleeve is connected with the involute arc-shaped groove through the involute arc-shaped convex wall during rotation in the first sleeve.

[0007] Optionally, the inner wall of the first sleeve is provided with a group of involute arc-shaped grooves radially symmetric in the axial direction; and the outer side wall of the second sleeve is provided with a group of involute arc-shaped convex walls radially symmetric in the axial direction.

[0008] Optionally, the number of the involute arc-shaped grooves is two, and the number of the involute arc-shaped convex walls is two.

[0009] Optionally, the front end of the second sleeve is provided with an oblique guide wall, and the front end of the outer side wall of the oblique guide wall is fixedly connected with the dilator.

[0010] Optionally, the dilator is a flat-head dilator.

[0011] Optionally, the incision protection plate is an isosceles trapezoidal structure composed of a long side wall, a short side wall and a side wall, and the incision protection plate is provided with a guide hole in the middle part and in communication with the instrument channel of the puncture sleeve.

[0012] Optionally, the incision protection plate is provided with two fixed through holes, the fixed through holes are close to the long side wall and are symmetric with the axis of the guide hole.

[0013] Optionally, the outer side of the puncture sleeve is provided with a scale indicating line in the axial direction.

[0014] The beneficial effects of the utility model are:

[0015] In the use process, the dilator end of the endoscope sleeve is inserted into the skin incision, the front end of the puncture sleeve is pushed to the site of the tumor to be removed by the dilating effect of the dilator, the puncture sleeve has a hollow instrument channel, and the instrument channel is in communication with the front end of the puncture tube and the incision protection plate, when the front end of the puncture sleeve reaches the site of the tumor to be removed, the angle of the incision protection plate is adjusted so that it is parallel to the tangent plane of the forehead, thereby playing a role in protecting the skin incision. At the same time, surgical instruments such as endoscopes can be sent to the site of the tumor to be removed through the instrument channel for surgical operation. The incision protection plate of the endoscope sleeve can effectively fit the hairline of the forehead and effectively protect the incision, so that the subsequent endoscopic surgery is more convenient to implement, and the problems existing in the prior art are effectively solved.

[0016] Furthermore, the first sleeve and the second sleeve are rotationally fixedly connected by the outer surface of the involute arc-shaped convex wall and the inner surface of the involute arc-shaped groove being pressed and abutted. During use, when it is necessary to adjust the length of the puncture sleeve, the second sleeve is lengthened relative to the first sleeve to the necessary puncture length, and the second sleeve is rotated along the direction of the groove wall thickening of the involute arc-shaped groove, so that the outer surface of the involute arc-shaped convex wall and the inner surface of the involute arc-shaped groove are pressed and abutted, thereby making the first sleeve and the second sleeve relatively fixed, which is convenient for the subsequent laparoscopic surgery. When it is necessary to shorten or retract the laparoscopic sleeve, the second sleeve is rotated in the opposite direction to release the relative fixation of the first sleeve and the second sleeve. The laparoscopic sleeve for resection of forehead soft tissue tumors of this embodiment can flexibly adjust the length of the puncture tube to adapt to the different distances between the tumor to be resected and the hairline of the patient, and the operation is more flexible and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Fig. 1 This is a structural diagram of a laparoscopic cannula for forehead soft tissue tumor resection according to an embodiment of the present invention;

[0019] Fig. 2 This is a side view of a laparoscopic cannula for forehead soft tissue tumor resection according to an embodiment of the present invention;

[0020] Fig. 3 This is a disassembled diagram of the parts of the laparoscopic cannula for forehead soft tissue tumor resection according to an embodiment of the present invention;

[0021] Fig. 4 This is a cross-sectional view of a laparoscopic cannula for forehead soft tissue tumor resection according to an embodiment of the present invention.

[0022] Description of Figure Numbers:

[0023] 01 puncture cannula, 011 first cannula, 012 second cannula, 013 involute arc groove, 014 involute arc convex wall, 015 oblique guide wall, 016 instrument channel, 017 scale indicator line, 04 spreader, 041 flat-head spreader sheet, 06 incision protection plate, 061 long side wall, 062 short side wall, 063 side wall, 064 guide hole, 065 fixed through hole.

[0024] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0026] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0027] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0028] Please refer to Figs. 1 to 4 The present application provides a kind of frontal soft tissue tumor resection endoscope cannula (hereinafter referred to as endoscope cannula), including puncture cannula 01, the front end of puncture cannula 01 is provided with dilator 04, the rear end of puncture cannula 01 is provided with incision protection plate 06, the incision protection plate 06 and the axis of puncture cannula 01 form 60 degrees angle of inclusion. In use, the dilator end of endoscope cannula is inserted into skin incision, and the front end of puncture cannula is pushed to the site to be removed by the dilating effect of dilator, puncture cannula has hollow instrument channel, and the instrument channel is communicated with the front end of puncture tube and incision protection plate, when the front end of puncture cannula reaches the site to be removed, the angle of incision protection plate is adjusted, so that it is parallel to frontal plane tangential, and then the function of protecting skin incision is played. Endoscope and other surgical instruments can be sent to the site to be removed through the instrument channel for surgical operation. The incision protection plate of the present endoscope cannula can effectively fit the frontal hairline, effectively protect the incision, and thus more facilitate the implementation of subsequent endoscopic surgery, effectively solve the problems existing in the prior art.

[0029] In an embodiment, the puncture cannula 01 comprises a first sleeve 011 and a second sleeve 012, the rear end of the first sleeve 011 is fixedly connected with the incision protection plate 06, the inner wall of the first sleeve 011 is provided with an involute arc-shaped groove 013, the second sleeve 012 is sleeved in the first sleeve 011, the outer side wall of the second sleeve 012 is provided with an involute arc-shaped convex wall 014 matched with the involute arc-shaped groove 013, and the second sleeve 012 is connected with the involute arc-shaped groove 013 through the involute arc-shaped convex wall 014 during rotation in the first sleeve 011. The rotationally fixed connection of the first sleeve and the second sleeve is realized through the forced contact connection of the outer surface of the involute arc-shaped convex wall and the inner surface of the involute arc-shaped groove. During use, when the length of the puncture cannula needs to be adjusted, the second sleeve is pulled relative to the first sleeve to the necessary puncture length, the second sleeve is rotated along the thickening direction of the groove wall of the involute arc-shaped groove, the outer surface of the involute arc-shaped convex wall is forcedly contacted and connected with the inner surface of the involute arc-shaped groove, and then the first sleeve and the second sleeve are relatively fixed, thereby facilitating subsequent endoscopic surgery. When the endoscopic cannula needs to be shortened or retracted, the second sleeve is rotated in the opposite direction, and the relative fixation of the first sleeve and the second sleeve is released. The frontal soft tissue tumor resection endoscopic cannula of the embodiment can flexibly adjust the length of the puncture tube to adapt to different distances between the patient's to-be-resected tumor and the hairline, and the operation is more flexible and convenient.

[0030] In an embodiment, the inner wall of the first sleeve 011 is provided with a group of axially radially symmetrical involute arc-shaped grooves 013, and the outer side wall of the second sleeve 012 is provided with a group of axially radially symmetrical involute arc-shaped convex walls 014. Through the axially radially symmetrical involute arc-shaped grooves and the involute arc-shaped convex walls, the axis of the second sleeve does not deviate during relative rotation of the first sleeve and the second sleeve, thereby reducing secondary damage of the spreader to the incision.

[0031] Specifically, in an embodiment, the number of the involute arc-shaped grooves 013 is 2, and the number of the involute arc-shaped convex walls 014 is 2.

[0032] In another embodiment, the front end of the second sleeve 012 is provided with a diagonal guide wall 015, and the front end outer side wall of the diagonal guide wall 015 is fixedly connected with the spreader 06. The diagonal guide wall can reduce the resistance when the second sleeve enters the to-be-resected tumor site from the incision.

[0033] In an embodiment, the spreader 04 is a flat-head spreader sheet 041, and the edge of the flat-head spreader sheet 041 is an arc surface, which can reduce damage of the spreader to the internal tissue when the spreader forms a running channel for the incision.

[0034] In an embodiment, the incision protection plate 06 is an isosceles trapezoidal structure composed of long side wall 061, short side wall 062 and side wall 063, and a through hole 064 is arranged in the middle of the incision protection plate 06 and communicates with the instrument channel 016 of the puncture cannula 01. The incision protection plate of the isosceles trapezoidal structure can realize the direction indication of the site by the different long side wall and short side wall, and is more convenient for the operation of the laparoscope cannula.

[0035] In an embodiment, two fixed through holes 065 are arranged on the incision protection plate 06, the fixed through holes 065 are close to the long side wall 061 and are symmetrical to the axis of the through hole 064. The laparoscope equipment can be connected and fixed through the fixed through holes, and the subsequent operation is facilitated.

[0036] In an embodiment, the puncture cannula 01 is provided with an axial scale indication line 017 on the outside. The depth of the insertion of the dilator can be confirmed through the scale indication line.

[0037] The above-mentioned is only the optional embodiment of the utility model, and does not limit the patent range of the utility model, and the equivalent structural transformation made by utilizing the utility model specification and the attached drawings, or the direct / indirect application in other related technical fields under the utility model concept of the utility model are included in the patent protection range of the utility model.

Claims

1. A forehead soft tissue tumor resection endoscope cannula comprising a puncture cannula, characterized in that, The front end of the puncture cannula is provided with a dilator, and the rear end of the puncture cannula is provided with a cut protection plate, which forms an angle of 60 degrees with the axis of the puncture cannula; the puncture cannula comprises a first cannula and a second cannula, the rear end of the first cannula is fixedly connected with the cut protection plate, the inner wall of the first cannula is provided with a involute arc-shaped groove, the second cannula is sleeved in the first cannula, the outer side wall of the second cannula is provided with an involute arc-shaped convex wall matched with the involute arc-shaped groove, and the second cannula is connected with the involute arc-shaped groove through the involute arc-shaped convex wall in the rotating process in the first cannula; the inner wall of the first cannula is provided with a group of involute arc-shaped grooves radially and symmetrically along the axis; the outer side wall of the second cannula is provided with a group of involute arc-shaped convex walls radially and symmetrically along the axis; the cut protection plate is an isosceles trapezoidal structure composed of a long side wall, a short side wall and a side wall, and a through hole is arranged in the middle of the cut protection plate and is in communication with the instrument channel of the puncture cannula.

2. The frontal soft tissue mass resection endoscope cannula of claim 1, wherein, The number of the involute arc-shaped grooves is 2, and the number of the involute arc-shaped convex walls is 2.

3. The frontal soft tissue mass resection endoscope cannula of claim 2, wherein, The front end of the second cannula is provided with an oblique guide wall, and the front end outer side wall of the oblique guide wall is fixedly connected with the dilator.

4. The frontal soft tissue mass resection endoscope cannula according to claim 3, wherein, The dilator is a flat-head dilator.

5. The frontal soft tissue mass resection endoscope cannula of claim 1, wherein, Two fixed through holes are arranged on the cut protection plate, the fixed through holes are close to the long side wall and are symmetric with the axis of the through hole.

6. The frontal soft tissue mass resection endoscope cannula of claim 1, wherein, The outer side of the puncture cannula is provided with an axial scale indicating line.

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