CN211658369U

CN211658369U - Tumor-free device for laparoscopic tumor surgery

Info

Publication number: CN211658369U
Application number: CN201922292546.XU
Authority: CN
Inventors: 李钢
Original assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Current assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-10-13
Anticipated expiration: 2029-12-18

Abstract

A non-tumor device for laparoscopic tumor surgery comprises a hollow guide pin, a guide rod, a support ring and a covering film, wherein the guide rod is perpendicular to the plane of the support ring and is fixed at the edge of the support ring; the film is circular, a fan-shaped notch is arranged close to the edge, and the edge of the film is curled and fixed on one surface of the film to form a wrapping structure; the edge covering structure is sleeved on the support ring, and the guide rod is positioned at the opening; the guide rod drives the support ring and the coating film to move in the guide pin and extend out of the guide pin. The utility model discloses can solve the unexpected tumour that bumps in the peritoneoscope tumour operation and scatter and arouse the problem that tumour cell abdominal cavity was planted.

Description

Tumor-free device for laparoscopic tumor surgery

Technical Field

The utility model belongs to peritoneoscope operation apparatus field, concretely relates to no tumour device of peritoneoscope tumour operation.

Background

Tumor-free technique was first proposed by Cole et al, physicians in 1954. It refers to a series of measures taken to reduce or prevent the shedding, planting and dissemination of tumor cells in malignant tumor surgical operations, including no need for compression, tumor isolation, tumor-free irrigation, and the like. The purpose is to prevent the tumor from spreading along the blood channel and the lymphatic channel; and secondly, the tumor cell wound surface is prevented from being planted. It is the basic principle that surgical staff must follow during surgery.

Principle of tumor-free technology:

1. the principle of non-extrusion in tumor surgery is that the operation of malignant tumor emphasizes that the movement should be as gentle as possible without extruding the tumor. For example, when the ovarian tumor is operated, the tumor is not broken as much as possible, and the tumor is touched little or not touched; when the cervical tumor is operated, the cervical tumor tissue is not extruded when the uterus is lifted and operated by the open cervical cancer operation, and the uterine lifter with the spiral head is used in the laparoscopic operation, so that the tumor tissue is extruded into the interstitium and is brought into the uterine cavity, and the tumor tissue can also be extruded into the blood sinus and enter the blood circulation, thereby accelerating the distant metastasis of the tumor.

2. The principle of tumor isolation is to separate tumor tissues from normal tissues and reduce the possibility of planting. And taking out the operation specimen in a bag and the like.

3. The acute tumor dissection principle is that the operation range of malignant tumors is relatively large, the risk is high, blunt tearing is avoided, bleeding can be reduced, injury is reduced, and meanwhile, extrusion to the tumors is reduced. The bipolar and ultrasonic scalpel of the laparoscopic surgery can close small lymph nodes and blood vessels and reduce the chance of tumor cells entering blood.

4. The principle of reducing the diffusion chance in the tumor operation is that instruments and auxiliary materials which contact with the tumor body in the operation are not used; emphasis is placed on irrigation in malignant tumor surgery, etc.

5. The principle of reducing cancer cell pollution is to avoid cancer cell shedding, to plant on the operation wound surface and to avoid blood flowing out to pollute the operation area (to avoid blood pollution).

6. The principle of tumor mass excision is to completely excise the cancer focus and the peripheral subclinical focus. Cystic emphasis on envelope integrity and solid tumors emphasize complete resection at a distance from the tumor.

With the development of medicine, the principle of tumor free is in equal position with the principle of sterility.

However, in laparoscopic surgery, there is no intraoperative method to protect the insulation following the tumor-free principle.

The patent application No. CN201720044707.1 'a tumor-free device for colorectal cancer without incision' provides a tumor-free device, but the device only plays a role of widening an operation channel, and the problem that the tumor is accidentally knocked off in the operation to cause the abdominal cavity planting of tumor cells can not be effectively prevented and solved.

Disclosure of Invention

For overcoming the defects of the prior art, the utility model provides a non-tumor device for laparoscopic tumor surgery, which can solve the problem that the tumor accidentally collided and scattered in the laparoscopic tumor surgery causes the tumor cell to be planted in the abdominal cavity.

The utility model adopts the following technical proposal:

a tumor-free device for laparoscopic tumor surgery, which comprises a hollow guide pin, a guide rod, a support ring and a covering film,

the guide rod is perpendicular to the plane of the support ring and fixed on the edge of the support ring, the edge of the support ring is provided with an opening at the opposite side of the guide rod, and the opening divides the support ring into two sections;

the film is circular, a fan-shaped notch is arranged close to the edge, and the edge of the film is curled and fixed on one surface of the film to form a wrapping structure;

the edge covering structure is sleeved on the support ring, and the guide rod is positioned at the opening; the guide rod drives the support ring and the coating film to move in the guide pin and extend out of the guide pin.

The edge of the film is flush with the inner edge of the notch.

The support ring is made of memory material.

The support ring is made of super-elastic nickel-titanium alloy material.

The film is a biological film or a protein film.

The supporting ring is close to two ends of the opening and is provided with a circle of annular groove around the outer wall, two sides of the opening are located on the edge covering structure and are provided with wire holes, and connecting wires are arranged to connect the annular groove and the wire holes.

A method for manufacturing a tumor-free device for laparoscopic tumor surgery comprises the following steps:

1) tying a connecting wire: respectively tying two ends of the connecting wire on the annular groove and the wire hole;

2) preparing a film: the edge of the covering film is curled and fixed on one side of the covering film to form a covering edge structure; and sleeving the edge covering structure into the end part of the support ring from the inlet ends on two sides of the opening, and pulling the inlet end of the edge covering structure to enable the edge covering structure to be sleeved on the support ring, wherein the guide rod is positioned at the position of the opening.

The fixing mode that the edge of the film is curled and fixed on one surface of the film is hot melting fixing.

A method for using a laparoscopic tumor surgery tumor-free device, comprising the steps of:

1) making an incision at the surgical site and placing a laparoscope;

2) searching for tumor positions: the guide pin is punctured into the abdominal cavity from the surgical site, the support ring and the covering film are placed into the guide pin, and the guide rod is pushed while the abdominal cavity condition is observed through the laparoscope; adjusting the guide rod to enable the support ring and the covering film to be positioned at the bottom of the tumor;

3) coating the tumor: pulling the guide rod outwards, enabling the covering film to be attached to the tumor and gradually wrapping the bottom of the tumor; the edge-covering structure fades out of the supporting ring due to the force of the tumor;

4) closing: the guide rod is continuously pulled outwards to drive the connecting wire, and the connecting wire pulls the edge covering structure to enable the edge covering structure to be in a closing trend;

5) and (3) placing a scalpel, cutting blood vessels and tissues of the tumor left outside the covering film, and adjusting the guide rod and the connecting wire to enable the covering film to wrap the tumor as much as possible, so that the complete tumor which is not scattered can be taken out from the operation incision.

The utility model discloses there is following positive beneficial effect:

1) through the anti-scattering device which can be placed in from the laparoscopic puncture outfit, the effects of wrapping the tumor and isolating the tumor from the abdominal cavity can be achieved, so that the tumor cell abdominal cavity planting caused in the operation is reduced.

2) The memory material is used, the fixing and forming are easy after the needle enters the abdominal cavity, and the needle is convenient to come in and go out from the inside of the guide needle.

Drawings

FIG. 1 is a schematic structural view of a guide rod and a support ring of the present invention;

figure 2 is a top view of the present invention from figure 1;

FIG. 3 is a schematic structural view of the supporting ring sleeved with the film;

figure 4 is a top view of the present invention from figure 3;

FIG. 5 is a sectional view showing the inner structure of the supporting ring with the film covered thereon;

FIG. 6 is a partial enlarged view of the portion A of FIG. 5;

FIG. 7 is a partial enlarged view of the portion B of FIG. 5;

FIG. 8 is a schematic representation of a cover being placed under a tumor;

FIG. 9 is a schematic view of the cover gradually wrapping the tumor;

FIG. 10 is a schematic view of the cover membrane wrapping the tumor with the support ring separated from the cover membrane;

FIG. 11 is a schematic view of the guide pin with the guide bar positioned therein;

fig. 12 is a schematic view of the covering film not yet having been made into a hem structure.

Numbering: 1-guide pin, 2-guide rod, 3-support ring, 31-opening, 32-annular groove, 4-covering film, 41-notch, 42-line hole, 5-connecting line and 6-tumor.

Detailed Description

The following describes the embodiments of the present invention with reference to the accompanying drawings.

The following examples are given for the purpose of illustrating the present invention in a clear manner and are not intended to limit the scope of the present invention. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art based on the following description, and it is within the spirit of the present invention that such variations and modifications are within the scope of the present invention.

Referring to the figures, the tumor-free device for the laparoscopic tumor surgery comprises a hollow guide pin 1, a guide rod 2, a support ring 3 and a covering film 4,

the guide rod 2 is perpendicular to the plane of the support ring 3 and fixed at the edge of the support ring 3, the edge of the support ring 3 is provided with an opening 31 at the opposite side of the guide rod 2, and the opening 31 divides the support ring 3 into two sections;

the covering film 4 is circular, a fan-shaped notch 41 is arranged close to the edge, and the edge of the covering film 4 is curled and fixed on one surface of the covering film 4 to form a covering edge structure;

the edge covering structure is sleeved on the support ring 3, and the guide rod 2 is positioned at the opening 41; the guide rod 2 drives the support ring 3 and the coating film 4 to move in the guide pin 1 and extend out of the guide pin 1.

The edge of the covering film 4 is flush with the inner edge of the notch 41.

The support ring 3 is made of memory material.

The support ring 3 is made of super-elastic nickel-titanium alloy material.

The coating film 4 is a biological film or a protein film.

Two ends of the support ring 3, which are close to the opening 31, are provided with a circle of annular grooves 32 around the outer wall, two sides of the opening 41 are positioned on the edge covering structure and are provided with wire holes 42, and a connecting wire 5 is arranged to connect the annular grooves 32 and the wire holes 42.

1) tying a connecting wire 5: two ends of the connecting wire 5 are tied on the annular groove 32 and the wire hole 42 respectively;

2) preparing a film: the edge of the covering film 4 is curled and fixed on one surface of the covering film 4 to form a wrapping structure; and sleeving the edge covering structure into the end part of the support ring 3 from the inlet ends on two sides of the opening 41, and pulling the inlet end of the edge covering structure to enable the edge covering structure to be sleeved on the support ring 3, wherein the guide rod 2 is positioned at the position of the opening 41.

The fixing mode that the edge of the covering film 4 is curled and fixed on one surface of the covering film 4 is hot melting fixing.

1) making an incision at the surgical site and placing a laparoscope;

2) searching for tumor positions: the guide needle 1 is punctured into the abdominal cavity from the operation position, the support ring 3 and the covering film 4 are placed into the guide needle 1, and the guide rod 2 is pushed while the abdominal cavity condition is observed through the laparoscope; adjusting the guide rod 2 to enable the support ring 3 and the covering film 4 to be positioned at the bottom of the tumor;

3) coating the tumor: the guide rod 2 is pulled outwards, the coating film 4 is attached to the tumor and gradually wraps the bottom of the tumor; the edge-covering structure fades out of the supporting ring 3 due to the force of the tumor;

4) closing: the guide rod 2 is continuously pulled outwards to drive the connecting wire 5, and the connecting wire 5 pulls the edge covering structure to enable the edge covering structure to be in a closing trend;

5) and (3) placing a scalpel, cutting blood vessels and tissues of the tumor left on the outer side of the covering film 4, adjusting the guide rod 2 and the connecting wire 5 to enable the covering film 4 to wrap the tumor as much as possible, and taking out the complete tumor without scattering from the operation incision.

Claims

1. A non-tumor device for laparoscopic tumor surgery, which comprises a hollow guide pin (1), and is characterized by also comprising a guide rod (2), a support ring (3) and a coating (4),

the guide rod (2) is perpendicular to the plane of the support ring (3) and fixed at the edge of the support ring (3), the edge of the support ring (3) is provided with an opening (31) at the opposite side of the guide rod (2), and the opening (31) divides the support ring (3) into two sections;

the covering film (4) is circular, a fan-shaped notch (41) is arranged close to the edge, and the edge of the covering film (4) is curled and fixed on one surface of the covering film (4) to form a wrapping structure;

the edge covering structure is sleeved on the support ring (3) and the guide rod (2) is positioned at the opening (41); the guide rod (2) drives the support ring (3) and the coating film (4) to move in the guide pin (1) and extend out of the guide pin (1).

2. A laparoscopic tumor-free surgical device according to claim 1, wherein said membrane (4) has an edge flush with the inner edge of said slit (41).

3. The laparoscopic tumor-surgery tumor-free device according to claim 1, wherein said support ring (3) is made of memory material.

4. The non-tumor device for laparoscopic tumor surgery according to claim 3, wherein said support ring (3) is a super-elastic nitinol material.

5. The non-tumor device for laparoscopic tumor surgery according to claim 1, wherein said covering membrane (4) is a biological membrane or a protein membrane.

6. The tumor-free device for the laparoscopic tumor surgery as claimed in claim 1, wherein a ring of annular groove (32) is formed around the outer wall of the support ring (3) near both ends of said opening (31), thread holes (42) are formed on the edge-covering structure on both sides of said gap (41), and a connecting line (5) is arranged to connect said annular groove (32) and said thread holes (42).