WO2018161769A1

WO2018161769A1 - Combined specimen removal instrument and method of using same

Info

Publication number: WO2018161769A1
Application number: PCT/CN2018/075806
Authority: WO
Inventors: 朱莫恕
Original assignee: 成都五义医疗科技有限公司
Priority date: 2017-03-06
Filing date: 2018-02-08
Publication date: 2018-09-13
Also published as: CN109646055A; CN106798579A; CN106798579B

Abstract

Provided are a combined specimen removal instrument (500) and a method of using the same. The combined specimen removal instrument (500) comprises a disposable specimen bag product package (10) and a multi-use expansion mechanism. The product pack (10) comprises a specimen bag (100) and a sterile packaging system (200), and remains sterile when sold to and used by a customer. The sterile packaging system (200) ensures that the specimen bag (100) is in a sterile state. The specimen bag (100) comprises an open end (110) capable of being opened and closed, and a sealed bag body (120) extending from the open end (110). The specimen bag (100) further comprises a hem (109) surrounding the open end (110) and a drawstring thread (130) inserted into the hem (109). The hem (109) has a first opening (111) and a second opening (113). The specimen bag (100) can be in an unrolled state and a rolled-up state. When the specimen bag (100) is in the rolled-up state, the hem (109) is folded in half, and the first opening (111) and the second opening (113) are substantially aligned with each other. The bag body (120) is folded to form an elongated strip substantially parallel to the hem (109) or rolled up into a roll. The specimen bag (100) further comprises fastening strings (135, 141) for keeping the specimen bag (100) in the rolled-up state, thereby preventing the specimen bag (100) from automatically entering the unrolled state from the rolled-up state.

Description

Combined material picker and using method thereof

Technical field

The present invention relates to a minimally invasive surgical instrument, and more particularly to a combined retrieval device.

Background technique

In minimally invasive surgery (especially in hard laparoscopic surgery), internal tissue or diseased organs are usually removed via a small incision in the patient's skin or via a puncture catheter. How to safely and conveniently remove the intraluminal tissue or diseased organs has been a problem that plagues minimally invasive surgery. Since the first clinical application of self-hardening laparoscopic surgery, a variety of specimen bags for laparoscopic surgery have been developed at home and abroad. Although the structure and use of the specimen bags are different, they can be generally divided into two categories: the first category, a single specimen bag. U.S. Patent No. 5,037,379 discloses a singularly-opened line specimen bag which is used to hold the specimen bag and then enter the patient through a puncture catheter or a small incision. The second category consists of a specimen bag, a catheter and a retrieval device for the distraction mechanism. U.S. Patent No. 5, 546, 573, U.S. Patent No. 5, 480, 404, U.S. Patent No. 6, 383, 197, issued to U.S. Patent No. 6,383, 197, et al., the disclosure of which is incorporated herein by reference. The opening mechanism pushes the rolled specimen bag out of the catheter, and the specimen bag is opened by the opening mechanism to facilitate the insertion of the cut tissue or the diseased organ during the operation.

The aforementioned single specimen bag and the retrieval device are single-use products, and the structure of the retrieval device is complicated and the manufacturing cost is high, and the cost is urgently required. A single specimen bag is simple in construction and inexpensive to manufacture, but generally does not meet clinical needs, especially when large tissues or organs need to be removed during surgery, a single specimen bag is generally inconvenient to undertake tissue. U.S. Patent No. 8,408,112 discloses a combination picker that includes a single specimen bag and a reusable mechanism that both reduces costs and compensates for the inconvenience of a single specimen bag. However, the combined extractor disclosed in US Pat. No. 8,401,112 cannot accommodate the specimen bag in a curled state because it does not have a catheter necessary for the prior art device. When it is fed into the patient's body cavity through the puncture cannula, the specimen is taken. The disordered deformation of the bag causes the specimen bag to block the puncture cannula passage or requires a large amount of force to feed the specimen bag into the patient's body cavity. In the case of blockage or large resistance, the bag body of the specimen bag is easily damaged, and is broken by a large pressing force during the process of pulling out the body after the specimen bag is filled with the diseased tissue. In addition, the combined extractor disclosed in US Pat. No. 8,401,112 is also inconvenient for taking the specimen bag or the diseased tissue and taking it out of the patient's body. How to improve the clinical application performance of a single specimen bag is one of the important issues to be solved in the field.

Summary of the invention

Accordingly, it is an object of the present invention to provide a combination retrieval device (apparatus) comprising a pre-curled disposable specimen bag and a repetitive use deployment device.

In one aspect of the invention, a combination retrieval device is provided, comprising a disposable specimen bag product package and a repeating deployment mechanism. The single-use specimen bag product package includes a specimen bag and an aseptic packaging system and is sold in a sterile state for use by a customer, the aseptic packaging system ensuring that the specimen bag is sterile. The specimen bag includes a bag opening that can be opened and closed, and a closed bag body that extends from the mouth of the bag. The specimen bag further includes a tunnel surrounding the pocket and a pull wire interposed in the tunnel, the tunnel including a first tunnel opening and a second tunnel opening. In an optional solution, the specimen bag further includes two guiding tubes, and the guiding tubes are respectively inserted into and fixed to the first tunnel opening and the second tunnel opening.

In one aspect, the specimen bag includes a stretched state and a curled state; in the curled state, the tunnel is folded in half and the first tunnel opening and the second tunnel opening are substantially aligned, and the bag body is substantially parallel The tunnel is folded into a slender shape or rolled up into a scroll shape. The specimen bag further includes a tie coil for fixing the specimen bag in a curled state to prevent the specimen bag from automatically changing from a curled state to a stretched state.

In one implementation, the tie coil is formed from an elongated cord, including at least two live clasps, or includes at least one dead clasp and one clasp. The live clasp, that is, pulling the end of the cord constituting the clasp, the clasp is automatically unwrapped; and the dead clasp, that is, pulling the end of the cord constituting the dead clasp, The dead knot is tightened and tightened and does not automatically unravel. In a preferred solution, the tie coil, the live clasp or the dead clasp is composed of a pull wire provided by the specimen bag. In another alternative, the tie coil, the live clasp or the dead clasp is composed of an additional additional cord.

In another aspect of the invention, a method of manufacturing a crimped state of a specimen bag for the specimen bag product package is provided, comprising the following main steps:

S1: First, the reel structure of the bag mouth of the specimen bag is folded in half;

S2: then curling and/or folding the bag surface of the specimen bag along the bottom of the bag toward the neck of the bag body, and forming a slender or reel-shaped specimen bag with the folded roll structure;

S3: tying the specimen bag in a curled state with a wire structure of the specimen bag; the wire coil comprises two live buckles, or comprises one dead knot and one live buckle, and can be pulled by pulling The proximal end of the pull wire unwinds the live clasp.

In still another aspect of the present invention, a method of tying a specimen bag for the curled state is provided, comprising the following main steps:

S1: Firstly, the appropriate position of the pull cord of the pull wire is wound on the specimen bag in the curled state to form three or more tie coils, and the specimen bag is initially tied and fixed, and a first bundled and fixed by the tie coil is reserved. Live knots.

S2: re-folding the appropriate position of the cable to the second buckle and passing the first buckle, tightening the cable to reduce the first buckle to the second The buckle is fixed to complete the binding of the entire specimen bag in a curled state.

Another method of tying a specimen bag for the crimped state comprises the following main steps:

S1: First, hit a suitable button on the cable of the cable to make a dead knot;

S2: winding the cable again around the specimen bag in a curled state to form a tie coil; then folding the appropriate position of the cable to a live buckle and passing through the dead buckle, and tightening the cable to narrow the dead knot to the center The live buckle is fixed;

S3: Finally, the position of the dead knot and the live buckle is adjusted such that the tie coil binds the specimen bag in the curled state.

In still another aspect of the invention, a repeating distraction mechanism is provided that includes a handle assembly, an elongated rod assembly, and an inner core assembly. The inner core assembly includes a first elongated working edge and a second extended working edge, and the handle assembly is operable to drive the first elongated working edge and the second elongated working blade to open or close. In another implementation, the repeating distraction mechanism includes a handle assembly, an elongated rod assembly and an inner core assembly, the inner core assembly including a first resilient working edge and a second resilient working edge. The first elastic working blade includes a first rigid segment, a first elastic arc segment and a first elastic straight segment; the second elastic working blade includes a second rigid segment, a second elastic arc segment and a second elasticity Straight section. The first curved segment and the second curved segment have a flexible and shape memory function. In another implementation, the repeating expansion mechanism includes an extension rod, a first elastic piece and a second elastic piece. The first elastic piece includes a first curved segment and a first straight segment, and the second elastic piece includes a second curved segment and a second straight segment. The first elastic piece and the second elastic piece have a flexible and shape memory function.

In yet another aspect of the invention, a method of using a combination retrieval device is provided, comprising the following main steps:

S1: Firstly, tear or open the aseptic packaging system of the specimen bag product package by standard sterilizing method;

S2: using a minimally invasive surgery universal non-destructive grasping pliers or holding the specimen bag in a curled state by hand, inserting the first elongated working blade and the second elongated working blade into the first tunnel opening and the second tunnel respectively In the mouth, and insert it to the end;

S3: operating the handle assembly to maintain the first elongated working edge and the second elongated working blade in a tunnel and in a closed state, entering a patient's body cavity through the puncture cannula passage, and placing the proximal end of the pull wire outside the patient's body ;

S4: Pulling the proximal end to disengage the live buckle of the bundle that binds the specimen bag, the tie coil is loosened, and then the adjustment is performed to expand the bag body, that is, the specimen bag is switched from the curled state to the stretched state. ;

S5: fully unfolding and positioning the specimen bag to a target position where the specimen or the diseased tissue needs to be cut, and operating the repeating expansion mechanism to open the first elongated working blade and the second elongated working blade to open the pocket and the bag body Then put the specimen or diseased tissue into the specimen bag.

S6: Remove the repeated opening mechanism, and then pull the cable to close the bag opening.

S7: Finally, the puncture cannula and the specimen bag containing the specimen or diseased tissue are pulled out of the patient's body.

DRAWINGS

In order to more fully understand the essence of the present invention, a detailed description will be made with reference to the accompanying drawings, in which:

Figure 1 is a perspective view showing the development of a specimen bag according to a first embodiment of the present invention;

Figure 2 is a schematic view showing the folding of the specimen bag shown in Figure 1;

3A-3C are schematic views showing the bag body of the specimen bag shown in Fig. 2 rolled up into a roll shape;

4A-4C are schematic views of the bag body of the specimen bag shown in Fig. 2 folded into an elongated strip shape;

5A-5I are schematic diagrams of the binding of a double-lived buckle of the specimen bag shown in FIG. 3 or FIG. 4;

6A-6G are schematic diagrams of the binding of a dead buckle knot and a live buckle of the specimen bag shown in FIG. 3 or FIG. 4;

Figure 7 is a perspective view showing the package of the specimen bag product package of the present invention;

Figure 8 is a schematic view showing the unpacking of the specimen bag product package of the present invention;

Figure 9 is a schematic view of a prior art lossless gripper;

Figure 10 is a schematic illustration of a modified inner core assembly 440;

Figure 11 is a schematic view showing the first and second working edges of the gripper 400 inserted into the tunnel opening of the specimen bag;

Figure 12 is a partially enlarged schematic view of the tunnel opening of Figure 11;

Figure 13 is a schematic view showing the insertion of the specimen bag into the puncture cannula as shown in Figure 11;

Figure 14 is a schematic view of the specimen bag being inserted into the patient through the puncture cannula as shown in Figure 13;

Figure 15 is a schematic view of the pull wire release live buckle;

Figure 16 is a schematic illustration of operation in a patient to cause the specimen bag to become stretched;

Figure 17 is a schematic view showing the operation of the gripper to open the mouth of the specimen bag;

Figure 18 is a schematic view of pulling out the gripper and tightening the mouth of the bag;

Figure 19 is a schematic view showing the tissue bag containing the tissue pulled out of the body;

Figure 20 is a perspective view showing the folding of the specimen bag 100a of another embodiment;

Figure 21 is a schematic illustration of another embodiment of the inner core assembly 440a;

Figure 22 is a schematic illustration of yet another embodiment of the repeating distraction device 700;

Figure 23 is a schematic view of the repeating spreader 700 inserted into the tunnel opening of the specimen bag;

Figure 24 is a schematic illustration of the repeating distraction instrument 700 and the insertion of the specimen bag into the puncture cannula channel.

Throughout the drawings, the same reference numerals are used to refer to the same or the like.

detailed description

Embodiments of the present invention are disclosed herein, but it should be understood that the disclosed embodiments are merely examples of the invention, which may be implemented in various ways. Therefore, the disclosure of the present invention is not to be construed as limiting, but as a basis

Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. For convenience of description, one of the parties that is close to the operator is defined as the near end, and the party far from the operator is defined as the far end.

Figures 1-2 detail the construction and composition of the specimen pouch 100 of the first embodiment of the present invention. The specimen bag 100 is usually formed by overlapping and welding a single piece of film, or by welding two pieces of film. Materials for the film include, but are not limited to, polyethylene, polyvinyl chloride, polypropylene, nylon, Teflon, thermoset elastomers, and thermoplastic elastomers such as polyurethane. Film bonding processes include, but are not limited to, heat welding, ultrasonic welding, high frequency welding, radiation welding, pulse welding, and the like. In one implementation, the specimen bag 100 is formed by folding and laminating a single piece of polyurethane film 101. One end of the film 101 is rolled up and welded to form a tunnel 109, and the tunnel 109 includes a first tunnel opening 111 and a second tunnel opening 113. The film 101 is folded in two oppositely along a geometrically symmetrical axis 102 (not shown) substantially perpendicular to the direction of the tunnel 109 to form substantially opposite pocket faces 103 and pockets 104, wherein the first tunnel opening 111 and the second tunnel Port 113 is substantially aligned. Heat sealing is formed along the outer edge shape in which the pocket surface 103 and the pocket surface 104 overlap to form a heat seal weld 105. The pocket surface 103, the pocket surface 104, the weld bead 105 and the tunnel 109 collectively define a pocket 110 and a closed pocket 120 extending from the pocket 110. More specifically, the tunnel 109 is approximately circumferentially distributed along the pocket 110, and the pocket 120 extends from the tunnel 109 in a direction away from the pocket 110 to the pocket bottom 107. The bag body 120 is gradually reduced toward the distal end by the pocket opening 110, and has a shape of an approximately truncated cone shape. However, one of ordinary skill in the art will appreciate that the bag 120 can be designed in any other shape as well.

Referring to Figures 1-2, the specimen bag 100 further includes a pull wire 130. The pull wire 130 includes a distal sliding section 131 and a pull wire proximal end 139 and a pull cord 133 extending from the proximal end to the distal end. The distal end portion of the pull wire 130 passes through the tunnel 109 and the pull wire proximal end 139 passes through the sliding joint 131 to form a tie loop 132 that is substantially the same size as the pocket opening. The pull cord 132 can be reduced by pulling the pull cord proximal end 139 to slide the pull cord 133 in the sliding section 131 until the pocket opening 110 is tightened. It will be appreciated by those skilled in the art that the sliding section 131 or the proximal end 139 may also be connected to an auxiliary part such as a fixed tab.

In one aspect of the invention, a prefabricated reel-type single specimen pouch 100 is provided that includes a stretched state (as shown in Figures 1-2) and a crimped state (as shown). The curled state is that the specimen bag 100 is first folded into an elongated shape or rolled up into a roll shape, and then fixed by a thin wire (rope) or other binding device to keep it curled, and then loaded into a package. The bag is sterilized for clinical application to solve the defects of the prior art single specimen bag clinical application.

In one embodiment, the specimen bag 100 is rolled up (refer to Figures 3A-3C) or folded (refer to Figures 4A-4C) in a direction generally parallel to the tunnel 109 to form a crimped condition. Reusing the pull wire 130 of the specimen bag 100 to form a tie coil comprising at least two live clasps (refer to FIGS. 5A-5I) or comprising at least one dead clasp and a live clasp (refer to FIGS. 6A-6G) The specimen bag 100 is tied and always kept in a curled state. The live buckle is pulled to pull the proximal end 139 of the pull wire 130, and the knot formed by the pull wire is automatically unwound; and the dead buckle is pulled to pull the proximal end 139, and the knot formed by the pull wire is tightened tightly without Automatically unlocked.

3A-3C detail a method of pre-forming the specimen bag 100 into a crimped condition. Specific steps are as follows:

S1: First, the tunnel 109 of the specimen bag 100 is folded in half, so that the specimen bag 100 as a whole is in a folded state and the first tunnel opening 111 and the second tunnel opening 113 are substantially aligned (see FIG. 2);

S2: The bag body 120 is further wound up in the direction of the bag opening 110. In this process, the bottom 107 of the bag first forms a small cylinder, and by further rolling up, the bag surface 120 is wound on the small cylinder to form a larger cylinder until the roll is brought into close contact with the tunnel 109 to form The specimen bag 100 in a curled state (see Figures 3A-3B).

S3: The specimen bag 100 in the curled state is bundled by the pull wire 130 of the specimen bag 100, and the binding method is a double-lived buckle (or a dead buckle knot and a live buckle) to complete the entire prefabrication process.

4A-4C detail another method of pre-forming the specimen bag 100 into a crimped condition. Specific steps are as follows:

S2: The bag body 120 is further folded in the direction of the bag opening 110. In this process, the bag bottom 107 is first formed into a folded section by folding, and by further folding, the bag body 120 is folded a plurality of times to form a pleated type pleat body, and is closely attached to the tunnel 107 to form a specimen bag 100 in a curled state. (See Figures 4A-4B).

In the process in which the above specimen bag 100 is pre-formed into a curled state, the second step may form the elongated bag-like specimen bag 100 by rolling up or folding the bag body 120 and the tunnel 109. It will be readily apparent to those skilled in the art that the first half of the bag body 120 can be rolled up, and the second half of the bag body 120 can be folded; the first half of the bag body 120 can be folded, and the second half of the bag body 120 can be rolled. Start. Although the direction of folding or rolling in the illustrated case is generally parallel to the tunnel 109, it is also possible that the direction in which it is folded or rolled is at an arbitrary angle to the direction of the tunnel 109. Similar variations in folding are also within the scope of the invention.

5A-5I detail a method of securing the specimen bag 100 in a curled state by means of a double-snap fastener. First, the appropriate position of the pull cord 133 of the pull wire 130 is wound on the specimen bag 100 in the curled state to form three or more tie coils 135, and the specimen bag is initially tied and fixed, and one of the tie coils 135 is reserved for binding. The first live clasp 134 (as shown in Figures 5B-5E). Then re-folding the appropriate position of the cord 133 into the second flap 136 and passing through the first flap 134, tightening the cord 133 to reduce the first loop to the second The buckle 135 is fixed (as shown in FIGS. 5F-5I), and the crimping of the entire specimen bag 100 is completed. It should be understood by those skilled in the art that pulling the proximal end 139 of the pull wire 130 can cause the second buckle 136 to be reduced and finally completely disengaged from the first buckle 134, and the coil 135 is also Can be solved accordingly.

Figures 6A-6G detail a method of securing the specimen bag 100 in a crimped state in a manner that the dead knot is affixed to the knot. First, the appropriate position on the pull cord 133 of the pull wire 130 is hit by a dead buckle 137 (as shown in FIGS. 6B-6C); then the pull cord 133 is wound around the specimen bag 100 in the curled state to form a tie coil 141 (FIG. 6D); Fitting the appropriate position of the cord 133 into the live clasp 138 and passing through the dead clasp 137 (as shown in FIG. 6E), and tightening the cord 133 to reduce the dead clasp to fix the clasp 137 (Fig. 6F) -6G), and adjust the position of the dead knot 136 and the live clasp 137 such that the tie coil 141 binds the specimen bag 100 in the curled state. It will be understood by those skilled in the art that pulling the proximal end 139 of the pull wire 130 causes the live clasp 138 to be reduced and eventually completely disengaged from the dead clasp 137, and the tie coil 141 is also disengaged. 5A-5I and FIGS. 6A-6G describe in detail the common double-live fastening method and the dead-knot fastening and fastening method. One of ordinary people may think that the number of slips can be increased, or other buckles can be used. Implementation, no longer described here.

In another aspect of the invention, the specimen bag package assembly 10 includes a specimen bag 100 and a sterile packaging system 200 that are pre-formed in a crimped state. It will be readily apparent to those skilled in the art that aseptic packaging bags typically include non-porous plastic bags, high density polyethylene synthetic paper bags, non-porous materials, and poult-made paper synthetic bags. The sterilization method should be adapted to the packaging method, which usually includes gamma ray sterilization, X-ray or high-energy electron sterilization, ethylene oxide sterilization, and the like. Figures 7-8 depict a typical aseptic packaging system 200. The aseptic packaging system 200 is formed by welding a polyvinyl chloride sheet 210 and a DuPont Tyvek medical paper 220. Preferably, the specimen bag 100 is first pre-formed into a crimped state; it is then loaded into the packaging system 200; the packaging system bag 200 is then welded and melted into a closed system; finally, the sterilization is performed. The specimen bag 100 is sterile. The aseptic packaging system 200 can assure the sterility of the specimen bag 100 until the package is opened in a particular medical facility.

In yet another aspect of the invention, a combination retrieval device 500 is presented. The retrieval device 500 includes a specimen bag packaging assembly 10 and a grasping forceps 400 having an elongated working edge. 9 depicts a non-destructive grasping forceps 300 dedicated to minimally invasive surgery of the prior art, the lossless grasping forceps 300 including a handle assembly 310, a runner assembly 320, an extension rod assembly 330, and an inner core assembly 340. The handle assembly 310 includes a rear handle 313 and a front handle 315. The runner assembly 320 and the extension rod assembly 330 are coupled to the handle assembly 310 in a non-detachable or quick-disconnectable connection. The inner core assembly 340 includes a pull rod 343, a transmission assembly 345, a first working edge 347, and a second working edge 349. In the prior art disclosed, the transmission assembly includes two types of linkage mechanisms and chute mechanisms, and the transmission assembly 345 shown in this example is a linkage mechanism. The extension rod assembly 330 includes a hollow structure, the inner core assembly 340 is inserted into the interior of the extension rod assembly 330 and forms a quick-disconnectable connection thereto, and the tie rod 343 is coupled to the rear handle 313. The rear handle 343 can rotate and pull the axial movement of the pull rod 343 along the extension rod assembly, thereby driving the transmission assembly 345 to move, thereby driving the first working edge 347 and the second working edge 349 to open or closure. Different specific grasping tongs for minimally invasive surgery disclosed in the prior art, the specific implementation manners of the various functions are slightly different, and will not be described herein. In one implementation, the gripper 400 is slightly modified by the first working blade 347 and the second working blade 349 of the gripper 300, that is, the first working blade 347 and the second working blade. The 349 is elongated and the head is designed to facilitate insertion into the elongated smooth structure of the specimen bag tunnel 109. More specifically, the gripper 400 includes a handle assembly 310, a runner assembly 320, an extension rod assembly 330, and an inner core assembly 440. The inner core assembly 440 includes a pull rod 343, a transmission assembly 345, a first working edge 447 and a second working edge 449.

11-19 depict the clinical use of the combination device 500 of the present invention, the specific steps of which are as follows:

S1: The specimen bag package assembly 10 is torn or opened in a standard sterile manner (see Figure 8).

S2: the specimen bag 100 in the curled state is clamped (or picked up by hand) with the grasping pliers 300, and the first working blade 447 and the second working blade 449 of the grasping forceps 400 are respectively inserted into the first bag 100. The tunnel opening 111 and the second tunnel opening 113 are inserted into the bottom to completely enter the first and second working edges into the tunnel 109 (see Figs. 11-12).

S3: keeping the grasping forceps 400 in a clamping state, ensuring that the first working blade 447 and the second working blade 449 are in the tunnel 109, and then enter the patient body cavity through the puncture cannula passage 60, and keep the wire near Terminal 139 is outside the patient's body (see Figures 13-14).

S4: Pulling the proximal end 139 to disengage the live buckle of the bundle of the specimen bag 100, the tie coil is loosened, and then the adjustment is performed to expand the bag 120, that is, the specimen bag 100 is curled. Switch to the stretched state (see Figure 15-16).

S5: The specimen bag 100 is fully deployed and positioned to a target position where the specimen or the diseased tissue needs to be cut, and the grasping forceps 400 is operated to open the first working blade 447 and the second working blade 449 to each other, thereby opening the pocket 110 and the bag. Body 120. The specimen or diseased tissue is then loaded into the specimen bag 100 (see Figure 17).

S6: Remove the gripper 400, and then pull the cord 133 to narrow the loop 132 until the pocket 110 is closed (see Figure 18).

S7: The puncture cannula 60 and the specimen bag 100 containing the specimen or diseased tissue are pulled out of the patient's body (see Figure 19).

20 depicts an improved specimen bag 100a that includes a specimen bag 100, a pull wire 130 (not shown), and two guide tubes 117. The guide tube 117 is made of a material such as polytetrafluoroethylene, polypropylene, a thermoplastic elastomer, a thermosetting elastomer, or the like, and may be rigid or flexible. The guiding tube 117 is fixed to the first tunnel opening 111 and the second tunnel opening 113 by means of bonding or interference fit. The pull wire 130 includes a distal sliding section 131 and a pull wire proximal end 139 and a pull cord 133 extending from the proximal end to the distal end. The distal end portion of the pull wire 130 passes through the tunnel 109 and the guide tube 117 simultaneously, and the pull wire proximal end 139 passes through the slide joint 131 to form a loop 132 that is substantially the same size as the pocket. It will be appreciated by those skilled in the art that the specimen bag 100a can be in a reeled state as described above, and the specimen bag 100 that can replace the aforementioned combination retrieval device 500 can be used to remove tissue or specimen from the patient during surgery. The guide tube 117 facilitates rapid alignment of the first working edge 447 and the second working edge 449 with the first tunnel opening 111 and the second tunnel opening 113.

21 depicts an improved grasping forceps 400a that includes a handle assembly 310, a runner assembly 320, an extension rod assembly 330, and an inner core assembly 440a. The inner core assembly 440a includes a pull rod 343, a transmission assembly 345, a first working edge 447a and a second working edge 449a. Only the first working edge 447a and the second working edge 449a are depicted in Fig. 21, other structures are omitted in this figure, and can be seen with reference to Figs. The first working blade 447a includes a working blade 347 and a first elastic piece 450 fixed thereto, and the first elastic piece 450 includes a straight section 453 and an arc segment 455. The second working edge 449a includes a working edge 349 and a second elastic piece 460 fixed thereto, and the second elastic piece 460 includes a straight section 463 and a curved section 465. The first elastic piece 450 and the second elastic piece 460 have a flexible and shape memory function. When pressed by an external force, the arcuate segments 455 (465) of the first and second elastic pieces may be deformed into an approximately straight section and elongated along the axial direction of the tie rod 343; when the external force is removed, First, the curved section 455 (465) of the second elastic piece can be restored into an arc shape and retracted in the axial direction of the pull rod 343. The grasping forceps 400a can be used in place of the grasping forceps 400 in the prior art combination device 500 to remove tissue or specimen from the patient during surgery.

Figure 22 depicts another modified dedicated re-use distraction instrument 700. The distraction instrument 700 includes a metal elongated rod 710 and a first elastic piece 750 and a second elastic piece 760 connected thereto. The first elastic piece 750 includes a straight section 753 and an arcuate section 755. The second elastic piece 760 includes a straight section 763 and an arcuate section 765. The first elastic piece 750 and the second elastic piece 760 have a flexible and shape memory function. The arcuate section 755 (765) of the first and second elastic pieces may be deformed into an approximately straight section and elongated along an axial direction of the rod 710 when pressed by an external force; First, the arcuate section 755 (765) of the second shrapnel can be restored to an arc shape and retracted in the axial direction of the rod 710. The distraction instrument 700 can be used in place of the grasping forceps 400 in the combination retrieval device 500 described above for applying tissue or specimens from a patient during surgery. Referring to FIGS. 23-24, the straight section 753 of the first elastic piece 750 and the straight section 763 of the second elastic piece 760 are respectively inserted into the first tunnel opening 111 and the second tunnel opening 113 of the specimen bag 100 in the curled state. Inserting the first elastic piece 750 and the second elastic piece 760 substantially completely into the tunnel 109, and then inserting the specimen bag 100 and the instrument 700 into the patient through the puncture cannula passage 60 and maintaining the wire. The proximal end 139 of 130 is outside the patient's body. Since the first elastic piece 750 and the elastic piece 760 have flexibility, they can be automatically deformed to pass through the casing passage 60 with little resistance and smoothness. After the pull wire is released to release the live buckle according to the method described above, since the first elastic piece 750 and the second elastic piece 760 have a shape memory function and are automatically restored, the specimen bag 100 can be automatically deployed.

Many different embodiments and examples of the invention have been shown and described. One of ordinary skill in the art can make adaptations to the methods and apparatus by appropriate modifications without departing from the scope of the invention. For example, a simple adaptive modification is made by using the shackled live buckle method disclosed in other inventions. Several corrections have been mentioned, and other modifications are also conceivable to those skilled in the art. Therefore, the scope of the invention should be construed in the appended claims and the claims

Claims

A combined retrieval device comprising a disposable specimen bag product package and a repeating opening mechanism, the specimen bag product package comprising a specimen bag and an aseptic packaging system, and being sold in a sterile state for use by a customer, The bacteria packaging system ensures that the specimen bag is in a sterile state; the specimen bag includes a bag opening that can be opened and closed, and a closed bag body extending from the bag mouth; the specimen bag further includes a tunnel surrounding the bag mouth And a pull wire interposed in the tunnel, characterized by:

1) the tunnel includes a first tunnel port and a second tunnel port;

2) the specimen bag includes a stretched state and a curled state;

3) in the curled state, the tunnel is folded in half and the first tunnel opening and the second tunnel opening are substantially aligned, and the bag body is folded into an elongated shape or rolled up into a reel in a manner substantially parallel to the tunnel. shape;

4) The specimen bag further includes a tie coil for fixing the specimen bag to a curled state to prevent the specimen bag from automatically changing from a curled state to a stretched state.
A combination retrieval apparatus according to claim 1, wherein said tie coil is formed of an elongated string comprising at least two live clasps or comprising at least one dead clasp and a clasp.
The combination pickup apparatus according to claim 2, wherein said tie coil is constituted by a pull wire provided by said specimen bag.
The combination pickup apparatus according to claim 2, wherein said specimen bag further comprises two guide tubes which are respectively inserted into and fixed to said first tunnel opening and said second tunnel opening.
The combination retrieval device of claim 1 wherein said repeating distraction mechanism comprises a handle assembly, an elongated rod assembly and an inner core assembly; said inner core assembly comprising a first elongated working edge and a second extended working The blade, operating the handle assembly, drives the first elongated working edge and the second elongated working blade to open or close.
The combination retrieval apparatus according to claim 1, wherein said repeating expansion mechanism comprises an extension rod, a first elastic piece and a second elastic piece. The first elastic piece includes a first curved segment and a first straight segment, and the second elastic piece includes a second curved segment and a second straight segment. The first elastic piece and the second elastic piece have a flexible and shape memory function.
A method for manufacturing a crimped state of a specimen bag for use in a combination retrieval device according to claim 3, comprising the following main steps:

S1: First, the reel structure of the bag mouth of the specimen bag is folded in half;

S2: then curling and/or folding the bag surface of the specimen bag along the bottom of the bag toward the neck of the bag body, and forming a slender or reel-shaped specimen bag with the folded roll structure;

S3: tying the specimen bag in a curled state with a wire structure of the specimen bag; the wire coil comprises two live buckles, or comprises one dead knot and one live buckle, and can be pulled by pulling The proximal end of the pull wire unwinds the live clasp.
A method for tying a specimen bag for a combination retrieval device according to claim 3, comprising the following main steps:

S1: Firstly, the appropriate position of the pull cord of the pull wire is wound on the specimen bag in the curled state to form three or more tie coils, and the specimen bag is initially tied and fixed, and a first bundled and fixed by the tie coil is reserved. Live knots.

S2: re-folding the appropriate position of the cable to the second buckle and passing the first buckle, tightening the cable to reduce the first buckle to the second The buckle is fixed to complete the binding of the entire specimen bag in a curled state.
A method for tying a specimen bag for a combination retrieval device according to claim 3, comprising the following main steps:

S1: First, hit a suitable button on the cable of the cable to make a dead knot;

S2: winding the cable again around the specimen bag in a curled state to form a tie coil; then folding the appropriate position of the cable to a live buckle and passing through the dead buckle, and tightening the cable to narrow the dead knot to the center The live buckle is fixed;

S3: Finally, the position of the dead knot and the live buckle is adjusted such that the tie coil binds the specimen bag in the curled state.
A method of using a combination retrieval device according to any of claims 3 or 5, comprising the following main steps:

S1: Firstly, tear or open the aseptic packaging system of the specimen bag product package by standard sterilizing method;

S2: using a minimally invasive surgery universal non-destructive grasping pliers or holding the specimen bag in a curled state by hand, inserting the first elongated working blade and the second elongated working blade into the first tunnel opening and the second tunnel respectively In the mouth, and insert it to the end;

S3: operating the handle assembly to maintain the first elongated working edge and the second elongated working blade in a tunnel and in a closed state, entering a patient's body cavity through the puncture cannula passage, and placing the proximal end of the pull wire outside the patient's body ;

S4: Pulling the proximal end to disengage the live buckle of the bundle that binds the specimen bag, the tie coil is loosened, and then the adjustment is performed to expand the bag body, that is, the specimen bag is switched from the curled state to the stretched state. ;

S5: fully unfolding and positioning the specimen bag to a target position where the specimen or the diseased tissue needs to be cut, and operating the repeating expansion mechanism to open the first elongated working blade and the second elongated working blade to open the pocket and the bag body Then put the specimen or diseased tissue into the specimen bag. S6: Remove the repeated opening mechanism, and then pull the cable to close the bag opening. S7: Finally, the puncture cannula and the specimen bag containing the specimen or diseased tissue are pulled out of the patient's body.