CN105078552B - Drawn with the closing for taking thing bag hard conduit opening under hysteroscope and combined the unit with control gas - Google Patents

Abstract

Combined the unit with control gas the invention discloses being drawn with the closing for taking thing bag hard conduit opening under a kind of hysteroscope, it is characterized in that：Including interior sheath universal joint, protection traction cap, epitheca air valve and split puncture cannula；Interior sheath universal joint be hard tubular structure, within sheath universal joint as take thing bag hard conduit connector assembly, interior sheath universal joint using joint external screw joint can with protection traction cap be threadedly coupled, it is also possible to be connected with epitheca gas valve threads；Split puncture cannula can be connected using sleeve external thread interface with epitheca gas valve threads.The present invention can in operation repeatedly installation and removal realize one-object-many-purposes, it has can close, suitably traction, it is closed inflation etc. various functions.

Description

Combined device of closed traction and air control for opening of hard catheter with retrieval bag under endoscope

technical field

The invention relates to a medical device, in particular to an auxiliary device for taking out resection specimens in laparoscopic surgery.

Background technique

The specimens resected by laparoscopy and other laparoscopic surgery are large in size, and it is difficult to take them out through the abdominal wall or other small incisions on the body surface. According to the principle of no tumor, surgical specimens should be placed in a specimen bag to prevent tumor dissemination and metastasis, and the specimen bag should be inflated After being crushed and taken out, this kind of specimen bag has multiple hard catheters. First, the specimen bag and the hard catheters are placed into the body cavity, and then the end of the hard catheter needs to be clamped to lift the end part out of the body under the monitoring of the endoscope. , but the edge of the end of the hard catheter is sharp, lacks protective measures in the body, and is easy to damage the tissue, and the catheter is in the shape of a round tube, which is difficult to clamp under the endoscope. The process of clamping the tube wall at the opening of the catheter and pulling it out through the puncture hole in the abdominal wall It is also difficult, especially after the tumor specimen is pulverized in the retrieval bag, the hard catheter needs to be returned to the abdominal cavity, and the open state of the catheter opening may cause tumor debris to leak out, resulting in iatrogenic dissemination and metastasis in the body cavity Although the mode of stuffing in the plug tube can be used to temporarily close the hard catheter mouth, the plug may come off when the catheter passes through the body cavity, leaving behind in the human body and causing hidden dangers.

In the above-mentioned prior art, after the opening of the hard catheter is pulled out of the body, additional inflation and air valve functions are required. However, the conventional abdominal wall trocar with the same caliber cannot be directly airtightly docked with the hard catheter, and the trocar cannula is used to directly insert the catheter It is bound to need to increase the caliber of catheter in the inside, thus just must enlarge operation incision, increases patient's operation trauma.

Contents of the invention

The invention provides a combination device for closing the traction and air control of the opening of the hard catheter of the retrieval bag used under the endoscope, and provides a device for the opening of the hard catheter of the specimen bag, which can be repeatedly installed and disassembled during the operation according to the needs. One thing is multi-purpose, and has multiple functions such as blunt sealing, suitable for traction, sealing and inflation.

The present invention adopts following technical scheme for solving technical problems:

The structural features of the closed traction and air control combination device for the opening of the hard catheter of the extraction bag under the endoscope of the present invention are: comprising a universal joint of the inner sheath tube, a protective traction cap, an outer sheath air valve and a split puncture sleeve; The universal connector of the inner sheath tube is a hard tubular structure, and the universal connector of the inner sheath tube is used as the end assembly of the rigid catheter of the retrieval bag. The universal connector of the inner sheath tube can be threaded with the protective traction cap by using the external thread interface The connection can also be threaded with the outer sheath air valve; the split puncture cannula can be threaded with the outer sheath air valve by using the outer threaded interface of the casing.

The structural features of the closed traction and air control combined device for the opening of the hard catheter of the retrieval bag under the endoscope of the present invention are also:

The protective traction cap has a closed cap tube with a closed top, a top ring is connected to the top of the closed cap tube, the lower section of the closed cap tube is a cap tube internal thread interface, and the cap tube internal thread interface is used for The joint external thread interface in the universal joint of the inner sheath is threaded, and the two can be disassembled and assembled outside the body; the top of the closed cap tube is a dome, and the top ring of the cap is an annular body that is convenient for clamping under the endoscope .

The outer sheath air valve has an outer sheath tube, the top of the outer sheath tube is connected to the outlet end of the air valve, the air valve communicates with an external gas source through an inflation tube, and the lower section of the outer sheath tube is the inner tube of the outer sheath tube. Threaded interface, the outer sheath air valve is threadedly connected with the joint outer thread interface in the inner sheath tube universal joint by using the outer sheath tube inner thread interface, and the outer sheath air valve is used to inflate the extraction bag through the inner sheath tube universal joint; laparoscopic surgery The instrument passes through the air valve, the outer sheath tube, the universal joint of the inner sheath tube and the hard catheter of the extraction bag into the extraction bag in sequence, and the air valve is used to prevent the gas in the extraction bag from leaking through the universal joint of the inner sheath tube and the outer sheath tube. gas.

The split puncture sleeve is a hard tubular structure, and the split puncture sleeve is a combined structure formed by threading the outer threaded interface of the sleeve and the outer sheath air valve, and the combined structure is used as a combined abdominal wall or chest wall puncture device.

The outer sheath air valve is rotated outside the body to remove the outer sheath air valve from the universal joint of the inner sheath tube after completing the operation of inflating the bag and pulverizing the surgical specimen, and put it on the universal joint of the inner sheath tube. Replace and install the protective traction cap, and then close the retrieval bag by closing the universal joint of the inner sheath.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

1. The present invention provides an opening for the hard catheter of the retrieval bag, that is, the specimen bag, which can be repeatedly installed and disassembled during the operation to achieve multiple functions, and has multiple functions such as sealable, suitable for traction, airtight and inflatable, etc. .

2. After the extraction bag and its hard catheter are inserted into the body cavity, on the one hand, the end of the hard catheter is closed in a dome shape, which is round and blunt, which can reduce damage and resistance. On the other hand, it also realizes hard The end of the hard catheter can be pulled by the clamp; when the hard catheter is pulled out of the body, the opening of the hard catheter can be unobstructed, and the inflatable tube can be connected to the inflatable specimen bag, and the air valve can be sealed to prevent surgical instruments from entering and exiting. Air leakage; when the tumor specimen is pulverized and taken out in the specimen bag, the end opening of the hard catheter can be sealed again, that is, the distal opening of the catheter can be closed and retracted into the body cavity, thereby preventing the tumor debris from leaking, spreading and transferring.

3. In the present invention, each device is connected by mouth, which is detachable and multi-purpose, which helps to save resources and reduce operation costs.

Description of drawings

Fig. 1 is a plane view of the universal joint of the inner sheath in the present invention;

Fig. 2 is a plan view of the protection traction cap in the present invention;

Fig. 3 is a plane view of the outer sheath air valve of the present invention.

Fig. 4 is a plan view of the split puncture sleeve in the present invention;

Figure 5 is a plan view of the combination of the inner sheath tube universal joint and the protective traction cap in the present invention;

6 is a plan view of the combination of the inner sheath tube universal joint and the outer sheath air valve in the present invention;

Fig. 7 is a plan view of the combination of the outer sheath air valve and the split puncture sleeve in the present invention.

Labels in the figure: 11 universal joint of inner sheath tube, 111 threaded port at the distal end of inner sheath tube, 112 retrieval bag hard catheter, 113 retrieval bag, 12 protective traction cap, 121 cap top ring, 122 closed cap tube, 123 cap Tube internal thread interface, 13 outer sheath air valve, 131 outer sheath tube, 132 inflatable tube, 133 air valve, 134 outer sheath tube internal thread interface, 14 split puncture sleeve, 141 sleeve external thread interface, 142 sleeve tube.

detailed description

Referring to Fig. 1, Fig. 5, Fig. 6 and Fig. 7, the closed traction and air control combination device for the hard catheter opening of the retrieval bag under the endoscope in this embodiment includes the universal joint 11 of the inner sheath tube, the protective traction cap 12, the outer sheath Sheath air valve 13 and split puncture sleeve 14; inner sheath tube universal joint 11 is a hard tubular structure, with inner sheath tube universal joint 11 as the end assembly of the hard catheter 112 of the retrieval bag, inner sheath tube universal joint 11 utilizes joint The external threaded interface 111 can be threadedly connected with the protective traction cap 12 , and can also be threadedly connected with the outer sheath air valve 13 ; the split puncture cannula 14 can be threadedly connected with the outer sheath air valve 13 by using the sleeve external threaded interface 141 .

Referring to Fig. 2 and Fig. 5, in the present embodiment, the protective traction cap 12 has a closed cap tube 122 with a closed top, and a top ring 121 is connected to the top of the closed cap tube 122, and the lower section of the closed cap tube 122 is a cap tube internal thread interface 123, the internal threaded interface 123 of the cap tube is used for threaded connection with the external threaded interface 111 of the joint in the universal joint 11 of the inner sheath tube, and the two can be disassembled and assembled in vitro; the top end of the closed cap tube 122 is a dome, that is, it is round and blunt closed , The crown ring 121 is an annular body that is convenient for clamping under the endoscope.

Referring to Fig. 3, Fig. 6 and Fig. 7, in this embodiment, the outer sheath air valve 13 has an outer sheath tube 131, and the top end of the outer sheath tube 131 is connected to the outlet end of the air valve 133, and the air valve 133 passes through the inflation tube 132 and an external air source The lower section of the outer sheath tube 131 is an outer sheath tube internal thread interface 134, and the outer sheath air valve 13 is threadedly connected with the joint external thread interface 111 in the inner sheath tube universal joint 11 by using the outer sheath tube internal thread interface 134, and the outer sheath tube The air valve 13 inflates the retrieval bag through the universal connector 11 of the inner sheath tube; the endoscopic surgical instrument passes through the air valve 133, the outer sheath tube 131, the universal connector 11 of the inner sheath tube and the hard catheter 112 of the retrieval bag to enter the retrieval bag In 113, the air valve 133 is used to prevent the gas in the retrieval bag 113 from leaking through the universal joint 11 of the inner sheath tube and the outer sheath tube 131.

Referring to Fig. 4 and Fig. 7, in this embodiment, the split puncture sleeve 14 is a hard tubular structure, and the split puncture sleeve 14 utilizes a combined structure formed by screwing the outer threaded interface 141 of the sleeve with the outer sheath air valve 13, so as to The combined structure is used as a combined abdominal wall or chest wall puncturer. Specifically, a sleeve external thread interface 141 is provided at the front end of the sleeve tube 142, and the sleeve tube 142 is threadedly connected to the outer sheath air valve 13 by using the sleeve external thread interface 141 for implementing Cavity puncture.

In this embodiment, the outer sheath air valve 13 is rotated outside the body to remove the outer sheath air valve 13 from the universal joint 11 of the inner sheath tube after completing the operation of inflating the extraction bag and pulverizing the surgical specimen, and inserting the inner sheath The protective traction cap 12 is replaced and installed on the universal joint 11 of the tube, and the extraction bag 113 is closed by closing the universal joint 11 of the inner sheath tube.

After the connection shown in Figure 5 is completed, the protective traction cap 12 is inserted into the abdominal cavity through the vagina or other auxiliary channels along with the retrieval bag 113, and the top ring 121 of the cap is clamped through the abdominal wall puncture hole, and the protective traction cap 12 and the inner sheath are used together. The joint external thread interface 111 of the joint 11 is partially pulled out of the body, and the hard catheter 112 of the retrieval bag is located in the puncture hole of the abdominal wall to form a passage for the endoscopic surgical instrument to enter the body cavity. At the same time, exit the combined abdominal wall puncture device shown in Figure 7, and disassemble and separate the split puncture sleeve 14 from the outer sheath air valve 13; then, disassemble the protective traction cap 12 from the inner sheath tube universal joint 11 in vitro , replace it with the universal joint 11 of the inner sheath and connect the outer sheath air valve 13 to form a structure as shown in FIG. 6 .

After completing the connection shown in Figure 6, use the inflation tube 132 and the outer sheath air valve 13 to inflate the object bag 113, and the surgical instrument passes through the air valve 133, the outer sheath tube 131, the inner sheath tube universal joint 11 and the object extraction bag hard catheter 112 into the retrieval bag 113, the specimen is pulverized in the retrieval bag 113, and after the operation of specimen pulverization is completed, the outer sheath air valve 13 is disassembled from the inner sheath tube universal joint 11 in vitro , replace and connect the protective traction cap 12 on the universal joint 11 of the sheath again outside the body as shown in Figure 5, so as to close the universal joint 11 of the inner sheath, after completing the sealing of the universal joint 11 of the inner sheath, the The structure retreats into the abdominal cavity as a whole, and is removed from the body through the vagina or other auxiliary channels along with the retrieval bag.

The above-mentioned embodiments are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Variations and improvements should fall within the scope of protection defined by the claims of the present invention.

Claims (5)

1. A closed traction and air control combination device for the opening of a hard catheter with a retrieval bag under an endoscope, it is characterized in that: it includes an inner sheath tube universal joint (11), a protective traction cap (12), an outer sheath air valve ( 13) and a split puncture sleeve (14); the universal joint (11) of the inner sheath tube is a hard tubular structure, and the universal joint (11) of the inner sheath tube is used as the hard catheter (112) of the extraction bag The end assembly, the inner sheath universal joint (11) can be threaded with the protective traction cap (12) by utilizing the joint external thread interface (111), and can also be threaded with the outer sheath air valve (13); The body puncture cannula (14) can be threadedly connected with the outer sheath air valve (13) by using the cannula external thread interface (141). 2. The closed traction and air control combination device for the opening of the hard catheter of the retrieval bag under endoscopy according to claim 1, characterized in that: the protective traction cap (12) has a closed cap tube (122) with the top closed ), the top of the closed cap tube (122) is connected with a cap top ring (121), the lower section of the closed cap tube (122) is a cap tube internal thread interface (123), and the cap tube internal thread interface (123 ) is used for threaded connection with the joint external thread interface (111) in the inner sheath tube universal joint (11), and the two can be disassembled and assembled in vitro; the top of the closed cap tube (122) is a vault, and the cap The top ring (121) is an annular body that is convenient for clamping under the endoscope. 3. The combined device for sealing traction and air control of the hard catheter opening of the retrieval bag under endoscopy according to claim 1, characterized in that: the outer sheath air valve (13) has an outer sheath tube (131), The top of the outer sheath (131) is connected to the outlet end of the top air valve (133), and the top air valve (133) communicates with an external gas source through an inflation tube (132), and the outer sheath (131) The lower section of the pipe is the inner threaded interface (134) of the outer sheath tube, and the outer sheath air valve (13) is threadedly connected with the outer threaded interface (111) of the inner sheath tube universal joint (11) by using the inner threaded interface (134) of the outer sheath tube , use the outer sheath air valve (13) to inflate the retrieval bag through the inner sheath tube universal joint (11); the endoscopic surgical instrument passes through the top air valve (133), outer sheath tube (131), inner sheath tube universal joint ( 11) and the retrieval bag hard conduit (112) and enter in the retrieval bag (113), utilize the top air valve (133) to prevent the gas in the retrieval bag (113) from passing through the universal joint of the inner sheath tube (11) and the outer sheath Pipe (131) leaks. 4. The closed traction and air control combination device for the hard catheter opening of the extraction bag under endoscopy according to claim 1, characterized in that: the split puncture sleeve (14) is a hard tubular structure, divided into The body puncture cannula (14) is threadedly connected with the outer sheath air valve (13) by using the outer threaded interface of the cannula (141) to form a combined structure, and the combined structure is used as a combined abdominal wall or chest wall puncturer. 5. The closed traction and air control combination device for the hard catheter opening of the extraction bag under endoscopy according to claim 1, characterized in that: the outer sheath air valve (13) is inflated after the extraction bag is completed. And after the operation of pulverizing the surgical specimen, rotate the outer sheath air valve (13) off the inner sheath tube universal joint (11) in vitro, and replace and install the protective traction cap on the inner sheath tube universal joint (11) (12), and then close the retrieval bag (113) by closing the universal joint (11) of the inner sheath tube.