CN210019461U

CN210019461U - Traction device for laparoscopic surgery

Info

Publication number: CN210019461U
Application number: CN201920181983.1U
Authority: CN
Inventors: 马晋平; 杨光谱; 杨杰; 张天豪; 王颖钊
Original assignee: Guangzhou Blue Shiting Biotechnology Co Ltd
Current assignee: Guangzhou Blue Shiting Biotechnology Co Ltd
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2020-02-07
Anticipated expiration: 2029-01-31

Abstract

The utility model relates to the technical field of medical equipment, a draw gear that laparoscopic surgery used is disclosed, it includes the outer permanent magnet of first body, the outer permanent magnet of second body and draws the piece, it includes the connection area body, soft magnet and hard magnet to draw the piece, soft magnet fixed connection is in the one end of connection area body, hard magnet fixed connection is in the other end of connection area body, hard magnet has relative first end and the second end that sets up, the magnetism of the first end of hard magnet is south Pole, the magnetism of the second end of hard magnet is north Pole, at the operation in-process, the outer permanent magnet of first body with soft magnet is fixed with skin layer tissue magnetism is being kept apart to the skin layer tissue magnetism, the outer permanent magnet of second body with hard magnet is fixed with skin layer tissue magnetism is kept apart. The utility model provides a draw gear that laparoscopic surgery used can reduce the damage to intestines and stomach, reduces patient and produces the risk of complication at the postoperative.

Description

Traction device for laparoscopic surgery

Technical Field

The utility model relates to the technical field of medical equipment, especially a draw gear that laparoscopic surgery used.

Background

The minimally invasive surgery is a medical science branch which is used for completing surgical operations such as inactivation, excision, repair or reconstruction of pathological changes, deformities and wounds in a human body by sending special instruments, physical energy or chemical agents into the human body through a tiny wound or a tiny approach so as to achieve the purpose of treatment, and is characterized in that the wound of a patient is obviously smaller than that of a corresponding traditional surgical operation. Laparoscopic surgery has become one of abdominal surgeries under the influence of a minimally invasive concept. In laparoscopic surgery, medical personnel only need to cut 3 to 4 poking ports on the skin of a patient, and put illumination, camera shooting, traction and operation instruments into the body of the patient through the poking ports respectively to complete complex abdominal surgery. The patient who receives the laparoscopic surgery can recover quickly after the surgery because of less physical trauma.

In laparoscopic surgery, a traction apparatus for pulling intestinal tissue is commonly used. The device generally comprises an abdominal wall external magnet, an abdominal wall internal magnet and a traction wire which is connected with the abdominal wall internal magnet and used for traction of the intestinal tract. In the operation, medical personnel fix the target tissue by using the forceps clip, and attract and fix the magnets in the abdominal wall on the abdominal wall through the magnets outside the abdominal wall, thereby achieving the effect of tissue traction. The traction device has the disadvantages that the serosal layers on the outer surfaces of the peritoneum and the intestinal tract of a human body are very smooth, and the tissue is clamped by the forceps clip, so that the serosal layers of the intestinal tract are easily over-stimulated, the surfaces of the serosal layers on the outer surfaces of the peritoneum and the intestinal tract are damaged, and further, a series of serious complications such as inflammation, intestinal adhesion and even intestinal obstruction of a patient after operation are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a draw gear that laparoscopic surgery used, it can reduce the damage to intestines and stomach, reduces patient and produces the risk of complication at the postoperative.

In order to achieve the above objects, an embodiment of the present invention provides a traction device for laparoscopic surgery, including a first external permanent magnet, a second external permanent magnet, and a traction member,

the traction piece comprises a connecting belt body, a soft magnet and a hard magnet, the soft magnet is fixedly connected with one end of the connecting belt body, the hard magnet is fixedly connected with the other end of the connecting belt body, the hard magnet is provided with a first end part and a second end part which are oppositely arranged, the magnetism of the first end part of the hard magnet is south pole, the magnetism of the second end part of the hard magnet is north pole,

in the operation process, the first external permanent magnet and the soft magnet are fixed through magnetic attraction of skin layer tissues, and the second external permanent magnet and the hard magnet are fixed through magnetic attraction of skin layer tissues.

As a preferred scheme, the hard magnet further comprises a connecting portion, the connecting portion has two ends, one end of the connecting portion is fixedly connected with the first end of the hard magnet, the other end of the connecting portion is fixedly connected with the second end of the hard magnet, and the connecting belt body is fixedly connected to the connecting portion.

Preferably, the cross section of the connecting belt body is elliptical.

Preferably, the material of the connecting belt body is thermoplastic polyurethane elastomer rubber.

Preferably, a first through hole is formed in the center of the cross section of the hard magnet, and a second through hole is formed in the center of the cross section of the soft magnet.

Preferably, the diameter of the first through hole and the diameter of the second through hole are both 2mm to 6 mm.

Preferably, the cross-sectional shape of the hard magnet and the cross-sectional shape of the soft magnet are both circular rings.

To sum up, the embodiment of the utility model provides a draw gear that laparoscopic surgery used utilizes the position of the fixed tractive piece of magnetic attraction of the external permanent magnet of first body and the external permanent magnet of second to soft magnet and hard magnet, pulls gastrointestinal tract through the area body of being connected with soft magnet and hard magnet fixed connection, and at the operation in-process, medical personnel need not be with the gastrointestinal tract of clamp centre gripping patient, avoids pulling and causes excessive stimulation to gastrointestinal tract to can reduce patient's probability that produces the complication widely.

Drawings

Fig. 1 is a schematic structural diagram of a hard magnet provided in an embodiment of the present invention;

fig. 2 is a front view of a traction element provided by an embodiment of the present invention;

fig. 3 is a side view of a traction element provided by an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a traction member and a first external permanent magnet according to an embodiment of the present invention;

FIG. 5 is a schematic view of a traction device for laparoscopic surgery according to an embodiment of the present invention;

reference numerals:

1. a first external permanent magnet, 2, a second external permanent magnet, 3, a traction member, 31, a connection band body, 32, a soft magnet, 33, a hard magnet, 331, a first end portion, 332, a second end portion, 333, a connection portion, 4, a first through hole, 5, a second through hole, 6, a skin layer tissue, 7, a gastrointestinal tract.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "lateral", "upper", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 5, an embodiment of the present invention provides a traction apparatus for laparoscopic surgery, which includes a first external permanent magnet 1, a second external permanent magnet 2 and a traction member 3, the traction member 3 includes a connection belt 31, a soft magnet 32 and a hard magnet 33, the soft magnet 32 is fixedly connected to one end of the connection belt 31, the hard magnet 33 is fixedly connected to the other end of the connection belt 31, the hard magnet 33 has a first end 331 and a second end 332 disposed oppositely, the magnetism of the first end 331 of the hard magnet 33 is south pole, the magnetism of the second end 332 of the hard magnet 33 is north pole, during surgery, the first external permanent magnet and the soft magnet 32 are magnetically fixed through a skin layer tissue 6, and the second external permanent magnet and the hard magnet 33 are magnetically fixed through the skin layer tissue 6.

Based on the above technical solution, the soft magnet 32 is made of a soft magnetic material, and the hard magnet 33 is made of a hard magnetic material. When not in use, the medical staff can use the magnetism generated by the hard magnet 33 to combine the soft magnet 32 and the hard magnet 33, so as to save the storage space of the traction piece 3. In the present embodiment, it is assumed that the soft magnet 32 is aligned with the first end 331 (i.e., south pole end) of the hard magnet 33. During surgery, the medical staff pokes a small hole in the patient's dermal tissue 6 and feeds the traction element 3 into the abdominal cavity. As shown in fig. 4, the first permanent magnet 1 is placed on the surface of the cutaneous layer tissue 6 on the side close to the gastrointestinal tract 7 outside the abdominal cavity, wherein the magnetism of the end of the first permanent magnet 1 attached to the surface of the cutaneous layer tissue 6 is the same as the magnetism of the end where the hard magnet 33 and the soft magnet 32 are attached, that is, the magnetism of the end of the first permanent magnet 1 attached to the surface of the cutaneous layer tissue 6 is also south pole. Because the coercive force of the soft magnet 32 is low, the polarity of the soft magnet 32 changes along with the polarity of an applied magnetic field, the soft magnet 32 is magnetically attracted and fixed by the first body outer permanent magnet 1, the magnetism of the first end 331 of the hard magnet 33 is the same as that of the south pole of the first body outer permanent magnet 1, and the hard magnet 33 is far away from the soft magnet 32 and the first body outer permanent magnet 1 according to the physical principle that like poles repel each other. The medical staff can operate the clamp with the laparoscope instrument to hold the hard magnet 33, so that the hard magnet 33 passes through the bottom of the gastrointestinal tract 7 from one side of the gastrointestinal tract 7 and then is positioned at the other side of the gastrointestinal tract 7, and the connecting band body 31 pulls the gastrointestinal tract 7 along with the movement of the hard magnet 33. As shown in FIG. 5, the medical staff further puts the second extrabody permanent magnet 2 on the surface of the skin layer tissue 6 close to the other side of the gastrointestinal tract 7, wherein the magnetism of the end of the second extrabody permanent magnet 2 jointed with the surface of the skin layer tissue 6 is the same as that of the first end 331 of the hard magnet 33, i.e. the magnetism of the end of the second extrabody permanent magnet 2 jointed with the surface of the skin layer tissue 6 is also south pole. After the hard magnet 33 is separated from the soft magnet 32, and passes through the bottom of the gastrointestinal tract 7, in order to make the surface of the connecting band body 31 smooth and not twisted, when the hard magnet 33 is located at the other side of the gastrointestinal tract 7, the second end 332 (north pole end) of the hard magnet 33 is close to the skin layer tissue 6, and the first end 331 (south pole end) is far away from the skin layer tissue 6. When the magnetism of one end of the second extra-corporeal permanent magnet 2, which is attached to the surface of the skin layer tissue 6, is south pole, the second extra-corporeal permanent magnet 2 attracts each other in opposite directions according to the principle of physics, and the second extra-corporeal permanent magnet 2 magnetically attracts and fixes the hard magnet 33 on the inner surface of the skin layer tissue 6, so that the effect of dragging the gastrointestinal tract 7 through the dragging piece 3 is achieved. In other embodiments, when the second end 332 (north pole end) of the hard magnet 33 is aligned with the soft magnet 32, the medical staff only needs to change the magnetism of the first external permanent magnet 1 and the second external permanent magnet 2 close to the skin layer tissue 6, that is, the first external permanent magnet 1 and the second external permanent magnet 2 are inverted on the upper surface of the skin layer tissue 6, and the operation principle of the traction device is the same as that of the above. The utility model provides a draw gear that laparoscopic surgery used utilizes the magnetism of magnet to fix traction member 3 in the abdominal cavity inside, pulls intestines and stomach 7 through the connecting band body 31, need not use the clamp centre gripping intestinal at the operation in-process, has reduced the stimulation to intestines and stomach 7, and then has reduced the risk that patient produced the complication.

As shown in fig. 1, the hard magnet 33 further includes a connecting portion 333, the connecting portion 333 has two ends, one end of the connecting portion 333 is fixedly connected to the first end 331 of the hard magnet 33, the other end of the connecting portion 333 is fixedly connected to the second end 332 of the hard magnet 33, and the connecting belt 31 is fixedly connected to the connecting portion 333, that is, the connecting belt 31 is fixedly connected to the middle position of the hard magnet 33, which will not affect the magnetic fixing of the two ends of the hard magnet 33, the soft magnet 32 and the second external permanent magnet 2. In the present embodiment, similarly, the connection tape 31 is fixedly connected to the middle of the soft magnet 32.

Specifically, as shown in fig. 2, the cross section of the connecting belt body 31 is elliptical, the area of the elliptical shape is large, when in use, the intestinal tract can be effectively supported without using a soft pad, and the connecting belt body 31 has the function of carrying and traction.

Preferably, the material of the connecting belt body 31 is thermoplastic polyurethane elastomer rubber. The thermoplastic polyurethane elastomer rubber has the characteristics of excellent wear resistance, excellent ozone resistance, high hardness, high strength, good elasticity and low temperature resistance, belongs to a soft material, and ensures that the traction piece 3 is soft and foldable, thereby saving the storage space when not in use.

In addition, as shown in fig. 2, a first through hole 4 is provided at the center of the cross section of the hard magnet 33, and a second through hole 5 is provided at the center of the cross section of the soft magnet 32. In the operation process, medical personnel need clip traction piece 3 with the clamp, and the through-hole has all been seted up at the center of hard magnet 33 and the center of soft magnet 32, and the medical personnel of being convenient for press from both sides and get. Specifically, the diameter of the first through hole 4 and the diameter of the second through hole 5 are both 2 mm-6 mm, and the preferred aperture is 4mm, so that the clamp can clamp the magnet. Furthermore, the cross section of the hard magnet 33 and the cross section of the soft magnet 32 are both circular, and the outer surfaces of the hard magnet 33 and the soft magnet 32 have no edges and corners, so that unnecessary damage to human tissues can be avoided. In the present embodiment, the diameter of the soft magnet 32 and the diameter of the hard magnet 33 are both 8 mm.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A traction device for laparoscopic surgery is characterized by comprising a first external permanent magnet, a second external permanent magnet and a traction piece,

2. The traction apparatus for laparoscopic surgery as claimed in claim 1, wherein said hard magnet further comprises a connecting portion, said connecting portion has two ends, one end of said connecting portion is fixedly connected to said first end of said hard magnet, the other end of said connecting portion is fixedly connected to said second end of said hard magnet, and said connecting strap is fixedly connected to said connecting portion.

3. The laparoscopic surgical pulling apparatus according to claim 1, wherein said connecting band has an elliptical cross-sectional shape.

4. The traction apparatus for laparoscopic surgery as claimed in claim 1, wherein said tie body is made of thermoplastic polyurethane elastomer rubber.

5. The traction apparatus for laparoscopic surgery as claimed in claim 1, wherein a first through hole is formed at a center of a cross-section of said hard magnet, and a second through hole is formed at a center of a cross-section of said soft magnet.

6. The traction apparatus for laparoscopic surgery according to claim 5, wherein the diameter of said first through hole and the diameter of said second through hole are both 2mm to 6 mm.

7. The traction apparatus for laparoscopic surgery according to claim 5, wherein the cross-sectional shape of the hard magnet and the cross-sectional shape of the soft magnet are both circular rings.