WO2018176706A1

WO2018176706A1 - Retrieval apparatus for laparoscope

Info

Publication number: WO2018176706A1
Application number: PCT/CN2017/095188
Authority: WO
Inventors: 任琼珍
Original assignee: 任琼珍
Priority date: 2017-03-27
Filing date: 2017-07-31
Publication date: 2018-10-04
Also published as: CN207356123U

Abstract

A retrieval apparatus for a laparoscope comprises a disposable retrieval bag (1), a retrieval shaft (2), an inner shaft sleeve (16), and an outer shaft sleeve (3). The disposable retrieval bag (1) has one or more openings. A first curled rim member (4) and a second curled rim member (5) are sequentially arranged at one of the openings. An elastic metal member (6) is threaded through the first curled rim member (4). A drawstring (7) is threaded through the second curled rim member (5). The elastic metal member (6) is threaded through the first curled rim member (4) and bent to form an elastic metal ring. The elastic metal ring is connected to the retrieval shaft (2). The retrieval shaft (2) has one end connected to the elastic metal member (6) and the other end passes through the inner shaft sleeve (16). The drawstring (7) is threaded through the second curled rim member and passes through the inner shaft sleeve (16). The elastic metal member (6) and the disposable retrieval bag (1) are rolled up and stored inside the outer shaft sleeve (3) and can be unrolled or rolled up with pushing or pulling of the retrieval shaft (2).

Description

Laparoscopic extractor

Technical field

The present disclosure relates to the field of medical device technology, for example, to a laparoscopic material picker.

Background technique

Laparoscopic gynecological minimally invasive surgery is performed in the pelvic and abdominal cavity. The doctor looks directly at the surveillance screen and performs surgery on the surgical instrument inserted into the pelvic and abdominal cavity outside the abdominal cavity. The gynecological laparoscopic minimally invasive surgery has small trauma, quick recovery, small postoperative scar, etc. Advantages have become the first treatment for women. Laparoscopic hysterectomy or uterine fibroids removal is performed by laparoscopically cutting the uterus or fibroids, cutting and smashing the tissue in the abdominal cavity using a fibroid rotating machine, and removing the diseased tissue through a small incision.

According to the Food and Drug Administration (FDA) analysis, about 1 in every 350 hysterectomy or hysteromyoma removals, a patient with a secret uterine sarcoma was found to be rapidly rotating. The blade disperses the tumor tissue in the pelvis and abdomen, which can cause the spread of cancer cells and reduce the chances of survival.

Chinese patent document CN201420465018.4 provides a laparoscopic surgical material picker which stringes the storage pocket on a continuous circle of memory metal elastic wire, which can make the elastic wire open when opened. The circular or elliptical structure enables the storage pocket to be opened and the diseased tissue to be stored. However, the extractor is only suitable for taking out relatively soft tissue specimens, and hard tissues such as fibroids cannot be taken out. The hard tissue of the fibroids needs to be crushed by the pulverizing instrument before being taken through the abdominal wall to puncture the small holes. Therefore, in the related art, Laparoscopic surgical instruments cannot be used for fibroids crushing.

Summary of the invention

The present disclosure proposes a laparoscopic material extractor capable of solving the problem that a hard tissue specimen is splashed into a plurality of organs when being cut. The present disclosure provides a laparoscopic extractor comprising a disposable bag, a take-up bar, an inner sleeve and an outer sleeve, the disposable bag comprising not less than one pocket, one of the a first bead and a second bead are disposed in the bag mouth, the first bead is internally provided with an elastic metal piece, and the second bead is internally provided with a pull wire, and the elastic metal piece penetrates into the first Inside the roll and the bomb The metal sheet is bent to form an elastic metal ring, and the first end of the elastic metal piece is connected to the first end of the take-up rod; the second end of the take-up rod passes through the inner sleeve rod; The pull wire passes through the second bead and the pull wire passes through the inner sleeve rod, the first end of the inner sleeve rod extends into the outer sleeve rod, and the elastic metal piece and the disposable take-up bag are wound up in the The inside of the outer sleeve can be opened or wound with the push-pull of the take-up rod and the inner sleeve.

In the present disclosure, a first bead and a second bead are disposed, wherein the first bead is provided with an elastic metal piece, the second bead is internally provided with a pull wire, and the elastic metal piece and the pull wire are respectively disposed in different curls. It can make the disposable bag more closed when tightening the bag mouth. The elastic metal sheet extends out of the outer sleeve and can easily open the pocket for easy placement of the specimen tissue. It is easy to tighten and tighten the bag by tightening the slip line to prevent tissue and gas spillage.

Optionally, the disposable bag includes four bag mouths, which are a first bag mouth, a second bag mouth, a third bag mouth, and a fourth bag mouth, and the first curling edge and the second curling edge Set at the first pocket.

The purpose of setting four pockets is to place the sheath into the other three pockets, and the CO ₂ gas is filled into the disposable bag through the sheath, so that the bag of the disposable bag is swollen to form a pseudo abdominal cavity. , expand the operational field of vision. The abdominal lens and the operating instrument (including the pulverizer head) can also be placed in the disposable bag through the sheath to facilitate smashing and taking out the specimen tissue under direct vision.

Optionally, the first bead is disposed above the second bead.

Setting the first bead on top of the second bead enables the pull wire to be pulled more easily, ensuring that the bag opening is sealed.

Optionally, the number of the elastic metal sheets is two, and the first end of each of the elastic metal sheets is connected to the first end of the take-up rod, and each of the elastic metal sheets is not connected to the take-up rod. The second end is provided with an end sleeve for preventing the elastic metal sheet from piercing the disposable bag.

Optionally, the first end of the pull wire penetrates the second curl around the first pocket and passes through the second crimping edge, and the first end of the pull wire is worn out. A slip knot is made at the exit of the second curling edge, and the second end of the pull wire passes through the slip knot and then passes through the outer sleeve rod and the inner sleeve rod.

This kind of structure can prevent the problem that the wire pulls out from the second bead and the bag mouth cannot be tightened.

Optionally, a first inner sleeve rod sleeve is disposed at a first end of the outer sleeve rod extending into the outer sleeve rod, and a second inner sleeve rod sleeve is disposed at a second end of the outer sleeve rod. The first inner sleeve sleeve is provided with a first threading hole capable of passing through the wire and a through hole passing through the elastic metal piece, the second The inner sleeve sleeve is provided with a second threading hole capable of passing through the wire and a rod hole passing through the take-up rod.

The structure enables the disposable bag to be separated from the take-up bar after the disposable bag is opened, and the tissue is placed in the disposable bag, since the cable passes through the outer sleeve and the inner sleeve, The pull wire is kept outside the patient's body, and the disposable bag is easily pulled out.

Optionally, the pull wire is provided with a pull ring through the second end of the inner sleeve rod.

Optionally, the take-up rod is provided with a push-pull handle through the second end of the outer jacket rod.

The purpose of the pull ring and the handle is to facilitate the operator to operate the picker.

Optionally, the second pocket, the third pocket, and the fourth pocket are both tapered structures.

Setting the mouth of the bag into a tapered structure can prevent the sheath from falling out, and the operation is more convenient.

DRAWINGS

1 is a schematic structural view of a laparoscopic device for unopening provided in the embodiment;

Figure 2 is a cross-sectional view of the laparoscopic material picker provided in the embodiment;

FIG. 3 is a schematic structural view of the laparoscopic device after opening according to the embodiment;

4 is a partial enlarged view of the disposable bag for the laparoscopic device according to the embodiment.

In the picture:

1. Disposable bag; 2. Take-up bar; 3. Outer bar; 4. First curl; 5. Second curl; 6. Elastic metal sheet; 7. Pull wire; 8. First bag mouth; 9. Second bag mouth; 10, third bag mouth; 11, fourth bag mouth; 12, end sleeve; 13, pull pull ring; 14, push-pull handle; 15, first inner sleeve rod head; Set rod; 17, slip knot; 18, second inner sleeve rod head.

detailed description

The technical solutions of the present disclosure will be described below with reference to the accompanying drawings and embodiments.

In this embodiment, a laparoscopic material picker is provided, which can better tie the bag of the bag, and reduce the diameter of the bag to minimize the disposable bag. The internal CO ₂ gas overflows to prevent the tissue from scattering back to the abdominal cavity. As shown in FIG. 1-4, the laparoscopic device includes a disposable bag 1, a take-up bar 2, an inner sleeve 16 and an outer sleeve 3, and the disposable bag 1 includes not less than one. The first bead 4 and the second bead 5 are provided in the mouth of the bag, and the first bead 4 or the second bead 5 provided in the embodiment is used for wearing the elastic metal piece. 6 or pull the wire 7.

Optionally, the first bead 4 is provided with an elastic metal piece 6 , and the elastic metal piece 6 is two. When the elastic metal piece 6 protrudes from the outer cover 3 , the elastic metal ring 6 can be bent to form an elastic metal ring. Open the disposable bag pocket.

The second bead 5 is provided with a pull wire 7 for tightening the bag mouth of the disposable bag 1, and the elastic metal piece 6 is bent through the first bead 4 to form an elastic metal ring for use in the picker. When the bag mouth of the disposable bag 1 is propped up to enable the tissue to smoothly enter the disposable bag 1, in order to smoothly pull the elastic metal piece out of the outer cover rod 3, the elastic metal piece is connected with the take-up rod 2 The elastic metal piece 6 is connected to the first end of the take-up rod 2, and the elastic metal piece 6 is connected to the first end of the take-up rod 2 through the first inner sleeve rod head 15; the second end of the take-up rod 2 passes through Set of rods 16.

The pull wire 7 passes through the second bead 5 and the pull wire 7 passes through the inner sleeve rod 16. The pull wire 7 passes through the inner sleeve rod 16 to facilitate the operator to tighten the closed disposable bag 1 outside the patient's body, and the inner sleeve rod 16 extends at one end. Into the outer jacket rod 3, before use, the elastic metal sheet 6 and the disposable object bag 1 are all wound up in the outer jacket rod 3. When the take-up rod 2 and the inner sleeve rod 16 are pushed, the disposable material can be taken. The bag 1 and the elastic metal piece 6 are opened. The take-up lever 2 is disposed through the inner sleeve 16 and the second end of the outer sleeve 3 is provided with a push-pull handle 14.

As shown in FIG. 3, in the embodiment, the disposable bag 1 includes four pockets, which are a first pocket 8, a second pocket 9, a third pocket 10, and a fourth. The bag mouth 11, any one of the bag mouths can be used as a tissue inlet, when one of the bag mouths is used as a tissue inlet, the other three bags are used for placing the sheath, that is, the sheaths are respectively placed In the mouth of the bag, the shape of the three pockets placed in the sheath should be a tapered structure, that is, the mouth of the bag is gradually reduced to prevent the tissue from being exposed.

In this embodiment, the first bag opening 8 is set as a tissue inlet, so the first bead 4 and the second bead 5 are disposed at the first bag opening 8; the second bag opening 9 and the third bag opening are provided. Both the 10 and fourth pockets 11 are tapered.

The first bead 4 is disposed above the second bead 5 . The first bead 4 is disposed above the second bead 5 so that the pull wire 7 can fasten the disposable bag 1 compared to the case where the elastic metal piece 6 and the wire 7 are disposed in the same bead. The structure in the middle is more capable of tightening the disposable bag 1 while also reducing the width of the bead as much as possible, so that the disposable bag can maximize the organization of the bag. In other embodiments, the second bead 5 may be above the first bead 4, which arrangement extends the first bag opening 8 as far as possible to ensure that the pull wire 7 tightens the first bag opening 8.

When the two ends of the elastic metal piece 6 are disposed in the first bead 4, the curling may be punctured by the elastic metal piece 6, affecting the use of the extractor, and the elastic metal piece 6 is from the first curling edge. The 4 punctures will also cause other tissues inside the pelvic cavity to be scratched and cause injury. Therefore, in this embodiment, when both end portions of the elastic metal piece 6 are disposed in the first bead 4, the ends of the elastic metal piece 6 are provided with ends for preventing the elastic metal piece 6 from piercing the disposable bag 1 Set of 12. The length of the elastic metal piece 6 is equal to the circumference of the first bead 4.

The disposable bag 1 has an elliptical structure, and the elliptical bag can effectively prevent the bag from blocking the lens of the laparoscope and increase the operation space. The disposable bag 1 has a volume of 3000 to 5000 ml, the first bag 8 has a diameter of 50 to 250 mm, and the second bag 9, the third bag 10, and the fourth bag 11 have a diameter of 5 to 20 mm. The length of the neck of the second bag opening 9, the neck of the third bag opening 10 and the neck of the fourth bag opening 11 are both 50 to 100 mm.

A first inner sleeve rod 15 is disposed at a first end of the outer sleeve rod 16 and the first inner sleeve rod sleeve 15 is provided with a first threading hole capable of passing through the wire 7 and Through the through holes of the elastic metal piece 6, the elastic metal piece is free to move within the via hole. The second sleeve end 18 is not disposed at the second end of the outer sleeve rod 3. The second inner sleeve rod sleeve 18 is provided with a second threading hole capable of passing through the wire 7 and passing through The rod hole of the object rod 2.

The first end of the pull wire 7 penetrates the second bead 5 around the first bag opening 8 and then passes out from the second bead 5, as shown in FIG. 3 and FIG. 4, the pull wire 7 After one end is worn out, the knot 17 is slid at the exit of the second bead 5, and the second end of the pull wire 7 passes through the slip knot 17 and then passes through the outer sleeve rod 3, the first inner sleeve rod head 15, and the inner sleeve rod 16, The second inner sleeve rod head 18 is. This structure enables the cable 7 to be easily tensioned, and also prevents excessive force from pulling the cable out of the second bead 5. In order to facilitate the operator to tighten the pull wire 7, the pull wire 7 passes through the outer sleeve rod 3 and the second end of the inner sleeve rod 16 is provided with a pull ring 13.

In other embodiments, the first end of the pull wire 7 is inserted into the second bead 5 and is fixed around the first bag opening 8 and then inserted from the pull wire 7 . The second end of the pull wire 7 is worn. The outer jacket rod 3 and the inner sleeve rod 16 are passed through. The structure can also tighten the second bead 5, but the structure may cause the wire 7 to be detached from the second bead 5, that is, the wire 7 is pulled off the wire and the laparoscopic device cannot be used. Normal sealing.

When the laparoscopic material extractor is used, the outer sleeve 3 is first inserted into the abdominal cavity through the puncture sheath, and then the inner sleeve 16 and the take-up rod 2 are moved in the direction of the wound, so that the elastic metal piece 6 and the disposable material are taken. Bag 1 Extending the outer cover rod 3, the elastic metal piece 6 can open the disposable bag 1 bag after breaking the outer cover rod 3, so that the tissue can be put into the disposable bag 1. After the tissue is placed in the disposable bag, the take-up bar 2 is pulled out from the outer cover rod 3 to prevent the take-up rod 2 from affecting the tensioning wire, and then the pull ring 13 is pulled to pull the disposable bag 1 After tightening the mouth, cut the wire that is left outside the disposable bag, cut it to a length of about 5cm (to facilitate the removal of the disposable bag from the abdominal cavity), and then coat the outer cap 3 and the inner sleeve 2 and The cut wire is pulled out from the puncture sheath to disengage the bag of the disposable bag 1 to facilitate the operation of the surgical instrument into the abdominal cavity through the puncture sheath in the subsequent step, and then the tissue is pulverized and taken out in the bag of the disposable bag 1 specimen.

In this embodiment, the uterine fibroids removal operation is taken as an example. After the uterine fibroids are loaded into the disposable bag 1 through the first bag mouth, the take-up rod 2 is pulled out, and then the pull wire 7 is pulled to seal the first bag. Tightly, after cutting the wire, the outer sleeve 3, the inner sleeve 2 and the cut wire are taken out from the abdominal cavity, and the CO ₂ gas is filled into the disposable bag 1 through the sheath to make the disposable bag 1 The bag body is bulged to form a pseudo abdominal cavity, and the operation field of view is enlarged; the fibroid pulverizer and the abdominal cavity lens are placed into the disposable bag 1 through the sheath, and the second bag mouth and the third bag of the disposable bag 1 are taken. The bag mouth and the fourth bag mouth are tightened by the other three sheaths. Under the laparoscopic direct vision, the fibroid pulverizer pulverizes the fibroids in the disposable bag 1, and then takes the disposable bag 1 Remove from the patient.

Industrial applicability

The laparoscopic material extractor provided by the present disclosure can pulverize the diseased tissue in the disposable object bag, and solves the problem that the hard tissue lesion tissue splashes into the organ at the time of cutting.

Claims

A laparoscopic extractor includes a disposable bag (1), a take-up bar (2), an inner sleeve (16) and an outer sleeve (3), and the disposable bag (1) includes No less than one pocket, one of which is provided with a first bead (4) and a second bead (5), and the first bead (4) is provided with an elastic metal piece. (6), the second bead (5) is provided with a pull wire (7), the elastic metal piece (6) penetrates into the first bead (4) and the elastic metal piece (6) extends After the outer jacket rod (3) is out, the elastic metal ring can be bent, the first end of the elastic metal piece (6) is connected with the first end of the take-up rod (2); the second end of the take-up rod (2) The end passes through the inner sleeve rod (16); the pull wire (7) passes through the second bead (5) and the pull wire (7) passes through the inner sleeve rod (16), the inner sleeve rod (16) The first end projects into the outer casing rod (3), and the elastic metal piece (6) and the disposable object bag (1) are wound up in the outer casing rod (3) and can be taken along with the take-up rod (2) ), the push-pull of the inner sleeve (16) is opened or wound.
The laparoscopic applicator according to claim 1, wherein the disposable bag (1) comprises four bag mouths, which are a first bag mouth (8) and a second bag mouth (9), The third pocket (10) and the fourth pocket (11), the first bead (4) and the second bead (5) are disposed at the first pocket (8).
The laparoscopic applicator according to claim 2, wherein the first bead (4) is disposed above the second bead (5).
The lapper applicator according to claim 3, wherein the number of the elastic metal sheets (6) is two, and the first end of each of the elastic metal sheets (6) is opposite to the object The first end of the rod (2) is connected, and the second end of each of the elastic metal sheets (6) not connected to the take-up rod (2) is provided with a sheet for preventing the elastic metal sheet (6) from piercing the disposable bag. End sleeve (12) of (1).
The laparoscopic extractor according to any one of claims 2 to 4, wherein a first end of the pull wire (7) penetrates the second bead (5) around the first pocket ( 8) After one turn, it is pierced from the second curling edge (5), and the first end of the pulling wire (7) is worn out and then a slip knot is made at the passing edge of the second curling edge (5) (17) The second end of the pull wire (7) passes through the slip knot (17) and then passes through the outer jacket rod (3) and the inner sleeve rod (16).
The laparoscopic extractor according to claim 5, wherein the inner sleeve (16) extends into the first end of the outer sleeve (3) and is provided with a first inner sleeve sleeve (15), a second inner sleeve rod (18) is disposed at a second end of the outer casing rod (3), and the first inner sleeve rod (15) is provided with a first passage through the pull wire (7) a threading hole and a through hole passing through the elastic metal piece (6), the second inner sleeve rod head (18) is provided with a second threading hole and a through hole capable of passing through the wire (7) Through the rod hole of the take-up rod (2).
The laparoscopic applicator according to claim 5, wherein the pull wire (7) is provided with a pull ring (13) through a second end of the outer cover rod (3).
The laparoscopic applicator according to claim 5, wherein the take-up lever (2) is provided with a push-pull handle (14) through a second end of the inner sleeve (16).
The laparoscopic applicator according to claim 2, wherein the second pocket (9), the third pocket (10), and the fourth pocket (11) are all tapered structures.