阅读说明：本技术 一种腔镜外科切除组织的磁性快速取出器 (Magnetic rapid extractor for excised tissues of endoscopic surgery ) 是由 杜肇清 林雨昕 吴荣谦 于 2021-08-18 设计创作，主要内容包括：本发明涉及一种腔镜外科切除组织的磁性快速取出器,可根据需要装袋取出的切除组织或器官尺寸进行调节,避免占用手术空间或影响术中视野。其结构包括固定手柄、固定塞、外管、活动手柄、推杆、叶片、磁体扣和标本套袋。通过露出外管的叶片可张开的特性支撑一次性标本袋口。装袋完成后通过磁体扣相互吸引,叶片完全收入外管后迅速闭合,可实现对标本套袋第一次迅速封口,此后拉动位于标本套袋的拉环,实现对标本套袋第二次封口,从而简化腔镜外科手术中取出切除脏器或组织的流程,极大地节省时间,起到减轻患者痛苦,降低麻醉、交叉感染和癌细胞种植等风险的作用。(The invention relates to a magnetic rapid extractor for an endoscopic surgical excised tissue, which can be used for bagging the excised tissue or organ to be extracted according to the requirement and adjusting the size of the excised tissue or organ to avoid occupying the operation space or influencing the visual field in the operation. The structure of the utility model comprises a fixed handle, a fixed plug, an outer tube, a movable handle, a push rod, a blade, a magnet buckle and a specimen bag. The disposable specimen pocket is supported by the expandable nature of the leaves which expose the outer tube. After bagging, the blades are completely taken in the outer tube and then are closed rapidly, so that the specimen bag can be rapidly sealed for the first time, the pull ring positioned in the specimen bag is pulled, and the specimen bag is sealed for the second time, so that the process of taking out and cutting the visceral organs or tissues in the endoscopic surgery is simplified, the time is greatly saved, the pain of a patient is relieved, and the risks of anesthesia, cross infection, cancer cell planting and the like are reduced.)

1. A magnetic rapid extractor for excision of tissues in endoscopic surgery is characterized by comprising an outer tube (5) and a push rod (6) which is positioned in the outer tube (5) and can slide along the tube, the tail end of the outer tube (5) is connected with a fixed handle (1), the tail end of the push rod (6) is connected with a movable handle (2), the front end of the push rod (6) is connected with the tail ends of a plurality of blades (7) which can be opened like an umbrella, the front ends of the blades (7) are closed when being put into the outer tube (5) or extend out of the outer tube (5) to be opened like an umbrella under the driving of the movable handle (2) and the push rod (6), the front ends of the blades (7) are provided with a magnet buckle (8), the magnet buckle (8) comprises a magnet disc (20) connected to the front end of the blade (7) and a snap fastener used for clamping a single layer of the opening part of the specimen bagging (9), and the magnet disc (20) and the snap fastener are attracted through magnetic force.

2. The magnetic rapid extractor for the laparoscopic surgical excision of tissues according to claim 1, wherein the included angle between the fixed handle (1) and the outer tube (5) is more than 0 degree and less than 180 degrees, a groove (11) with a rectangular and two-semicircular combined cross section is arranged on the fixed handle (1) along the length direction of the fixed handle, a long hole (10) is arranged in the groove (11) along the length direction of the groove, a wheel (12) is arranged on the movable handle (2), the wheel (12) is composed of a wheel disc (13) and a wheel shaft (14), the wheel disc (13) is positioned in the groove (11), the wheel shaft (14) is inserted into the long hole (10), the diameter of the wheel shaft (14) is the same as the width of the long hole (10) and can freely slide in the long hole (10), and the diameter of the wheel disc (13) is the same as the width of the groove (11) and can freely slide in the groove (11).

3. The magnetic rapid extractor for the laparoscopic surgery excised tissue as claimed in claim 2, wherein the wheel disc (13) is provided with a square hole penetrating to the groove (11) for inserting the fixing plug (4), the fixing plug (4) is a solid block with four radial symmetry, and consists of a cuboid with a square cross section and a cylinder, wherein the cuboid is matched with the groove (11) in part, namely a square hole, and the cuboid is inserted into the groove (11) through the square hole, so that the relative positions of the fixing wheel (12), the groove (11) and the long hole (10) are unchanged.

4. The magnetic rapid extractor for the laparoscopic surgical removal of tissue according to claim 3, characterized in that the end of said push rod (6) is connected to the movable handle (2) through a pulley (3).

5. The magnetic rapid extractor of tissue of endoscopic surgical resection according to claim 4, wherein said fixed handle (1), fixed plug (4), outer tube (5), push rod (6), wheels (12) are made of medical stainless steel, said pulley (3) is made of ABS plastic, said blade (7) is made of memory alloy suitable for sterilization by current surgical disinfection and bendable 3 ten thousand times or more.

6. Magnetic quick extractor for the laparoscopic surgical removal of tissue according to claim 1 or 2 or 3 or 4 or 5, characterized in that each of said blades (7) is L-shaped and comprises a long arm (18) and a short arm (19), wherein the ends of each long arm (18) are connected to each other and to the front end of the pusher (6) and can be housed closed in said external tube (5), the short arms (19) are projecting outwards, and said magnetic disk (20) is fixed to the short arm (19) on the side remote from the long arm (18).

7. The magnetic rapid extractor of tissue removed in endoscopic surgery as claimed in claim 6, wherein the snap fastener comprises a female fastener (16) and a male fastener (15), the male fastener (15) generates an opening and closing force when the raised dots are pressed into the holes of the female fastener (16) to clamp the specimen sheath (9), and the snap fastener fixes the portion of the specimen sheath (9) close to the mouth of the bag on the blade (7) in the closed state.

8. The magnetic rapid extractor for the laparoscopic surgical excision of tissues according to claim 6, wherein the magnetic disc (20), the female buckle (16) and the male buckle (15) are made of strong magnetic materials harmless to human body, and the magnetic disc (20) and the male buckle (15) have mutually attractive magnetic force.

9. The magnetic rapid extractor of laparoscopic surgical resection tissue according to claim 6, characterized in that said specimen bag (9) is a disposable specimen bag with pull ring and a tying string (17).

10. The magnetic rapid extractor for the laparoscopic surgical removal of tissue according to claim 6, characterized in that the number of said blades (7) is 3, each blade (7) has a maximum length of 200mm, when the included angles of the three blades (7) are 90 ° to each other, the maximum diameter of 300mm tissue or organ can be inserted, the size of said magnet buckle (8) is adjusted according to the specification of the blade (7), and the magnetic field strength is not more than 200mT at most.

Technical Field

The invention belongs to the technical field of surgical medical instruments, and particularly relates to a magnetic rapid extractor for excised tissues of endoscopic surgery.

Background

Laparoscopic minimally invasive surgery is a surgical technique of thoraco-laparoscopic surgery, which is a small incision made in the thoraco-abdominal wall, together with optics allowing visualization inside the thoraco-abdominal cavity. Compared with the traditional operation, the endoscopic surgery has obvious advantages, can effectively reduce pain, shorten postoperative recovery and hospitalization time, and improve prognosis. In endoscopic surgery, removal of tissue or organs often requires complete removal. The extraction equipment applied to clinic has complicated style and lacks of a common standard instrument design. At present, home-made bags are used in clinic, the difficulty of the processes of cutting off the viscera or tissue bags and taking out the viscera or tissue bags is obviously increased in extremely limited minimally invasive vision and operation space, the time of operation and postoperative healing is invisibly increased, and the risk of postoperative cross infection and even tumor cell planting is increased.

With the continuing improvement in modern surgical techniques and the use of new biomaterials, despite the efforts of clinicians, there is still a lack of a reasonable and robust solution. For example, the currently widely used method for removing excised organs or tissues in clinical practice is: after the excised organ or tissue is loaded into a disposable self-made or specially-made specimen bag under the endoscope, the specimen is taken out by prolonging the operation incision and assisting the oval forceps. It is characterized in that: the operation difficulty is higher, the specimen is not easy to be packed and taken out, the operation time is prolonged, the pain of the patient is aggravated, the anesthesia and infection risks are improved, even the risk of cancer cell planting is increased, and the prognosis of the patient is influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a magnetic quick extractor for tissues cut out in endoscopic surgery, so that the bagging and the extraction can be conveniently and quickly completed, the process of taking out the cut organs or tissues in the endoscopic surgery is simplified, the time is greatly saved, and the effects of relieving the pain of a patient and reducing the risks of anesthesia, cross infection, cancer cell planting and the like are achieved.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a quick extractor of magnetism of laparoscopic surgery excision tissue, includes outer tube 5 and is located outer tube 5 and can follow the gliding push rod 6 of pipe, the end-to-end connection of outer tube 5 has fixed handle 1, the end-to-end connection of push rod 6 has movable handle 2, the tip of a plurality of umbelliform blades 7 of opening of ability is connected to the front end of push rod 6, the front end of a plurality of blades 7 is closed or is stretched out outer tube 5 and open by umbelliform in income outer tube 5 under the drive of movable handle 2 and push rod 6, the front end of each blade 7 is provided with magnet and detains 8, magnet detains 8 including connecting in the magnet dish 20 of blade 7 front end and the snap-fastener that is used for centre gripping sample bagging-off 9 sack part individual layer, magnet dish 20 is inhaled through magnetic force with the snap-fastener mutually.

The included angle between the fixed handle 1 and the outer tube 5 is larger than 0 degree and smaller than 180 degrees, a groove 11 with a rectangular and two-semicircular combined cross section is arranged on the fixed handle 1 along the length direction of the fixed handle, a long hole 10 is arranged in the groove 11 along the groove length direction, a wheel 12 is arranged on the movable handle 2, the wheel 12 consists of a wheel disc 13 and a wheel shaft 14, the wheel disc 13 is positioned in the groove 11, the wheel shaft 14 is inserted into the long hole 10, the diameter of the wheel shaft 14 is the same as the width of the long hole 10 and can freely slide in the long hole 10, the diameter of the wheel disc 13 is the same as the width of the groove 11 and can freely slide in the groove 11.

There is the quad slit that link up to recess 11 that is used for inserting fixed stopper 4 on the rim plate 13, fixed stopper 4 is the solid piece of a four sides radiation symmetry, comprises a cuboid and a cylinder that a cross section is the square, and wherein cuboid and recess 11 part shape are square shape promptly, the cuboid passes through relative position is unchangeable between quad slit inserted recess 11 internal fixation wheel 12 and recess 11, slot hole 10.

The tail end of the push rod 6 is connected with the movable handle 2 through the pulley 3.

The fixing handle 1, the fixing plug 4, the outer tube 5, the push rod 6 and the wheels 12 are all made of medical stainless steel, the pulley 3 is made of ABS plastic, and the blades 7 are made of memory alloy which is suitable for disinfection by a current surgical disinfection method and can be bent for 3 ten thousand times or more.

Each blade 7 is L-shaped, and comprises a long arm 18 and a short arm 19, wherein the tail ends of the long arms 18 are connected with each other and the front end of the push rod 6, the long arms can be closed and contained in the outer tube 5, the short arms 19 extend outwards, and the magnet disc 20 is fixed on one surface, far away from the long arms 18, of the short arms 19.

The snap fastener comprises a female buckle 16 and a male buckle 15, the male buckle 15 generates opening and closing force when the raised dots are pressed into the holes of the female buckle 16 to clamp the specimen sleeve bag 9, and the part of the specimen sleeve bag 9 close to the bag opening is fixed on the blade 7 when the snap fastener is in a buckling state.

The magnet disc 20, the female buckle 16 and the male buckle 15 are made of strong magnetic materials harmless to human bodies, attractive magnetic force is formed between the magnet disc 16 and the male buckle 15, and attractive magnetic force is formed between the magnet disc 20 and the male buckle 15.

The specimen cap bag 9 is a disposable specimen cap bag with a pull ring and a tying rope 17.

The number of the blades 7 is 3, the longest of each blade 7 is 200mm, when the included angles of the three blades 7 form 90 degrees, the maximum blades can be loaded into tissues or organs with the diameter of 300mm, the size of the magnet buckle 8 is adjusted according to the specification of the blades 7, and the magnetic field intensity is not more than 200mT at most.

Compared with the prior art, the invention has the beneficial effects that:

1. the endoscope organ or tissue taking tool has the advantages that the fixed handle and the movable handle are connected with the wheels on the movable handle through the grooves and the long holes in the fixed handle, which are special in shape, so that the problems of influence on disinfection, easiness in damage and the like caused by complex structures such as nuts or knobs and the like are avoided.

2. The fixed plug can ensure that the fixed handle and the movable handle do not move relatively completely, so that the device is more stable and safer and is not easy to damage.

3. When the blades are exposed out of the outer tube, the blades are umbrella-shaped, the disposable specimen bag fixed on the short arm can be unfolded, and when the blades are completely retracted, the blades are closed to assist the closing of the specimen bag and save space.

4. During the use, the size of the tissue of bagging-off as required or organ is adjusted the blade and is exposed length to the sample bag that the cooperation size is suitable is used, when accomplishing to practice thrift the valuable operation space as far as possible, avoiding influencing the field of vision in the art, can avoid again influencing the organ bagging-off because of the sack struts the degree not enough.

5. The gap that can hold the disposable sample bag of single-layer area pull ring exists between the box and the pin thread of snap-fastener, and the power of opening and shutting that the pin thread produced when protruding dot is pressed into the hole of box can firmly press from both sides tight sample bag with the magnetic attraction combined action between pin thread and the box, avoids the magnet abdominal cavity that drops, and is safer. The attractive force between the snap fastener and the magnet disc can lead the part of the disposable specimen bag with the pull ring, which is close to the bag opening, to be fixed on the short arm, thereby avoiding the slippage of the specimen bag.

6. The risk of cancer cell planting is greatly reduced by rapidly sealing for the first time. The pull ring of the disposable sample bag of pulling afterwards still can realize sealing the disposable sample bag the second time, and is safe convenient more, greatly shortens sample bagging-off time.

Drawings

FIG. 1 is a schematic view of the construction of the present invention with the paddles fully extended out of the outer tube and spreading the largest specimen envelope available.

FIG. 2 is a schematic view of the construction of the present invention with the sheath fully closed with the blades fully retracted into the outer tube.

FIG. 3 is a schematic view of the blade in an intermediate state during the sliding motion of the movable handle of the present invention.

Fig. 4 is a schematic diagram of a fixed handle with an outer tube after a fixed plug is installed.

Figure 5 is a schematic view of the wheels on the movable handle.

Fig. 6 is a schematic view of a fixed plug.

Fig. 7 is a partial schematic view of the blade and magnet clasp junction.

Detailed Description

The invention is further described below with reference to the drawings and specific embodiments, it is obvious that the following drawings are only examples of the invention and that, to a person skilled in the art, other drawings can be derived on the basis of these drawings without inventive effort.

As shown in figures 1, 2 and 3, the magnetic quick extractor for the laparoscopic surgical excision of tissue comprises an outer tube 5 and a push rod 6, wherein the push rod 6 is positioned in the outer tube 5 and can slide along the tube. The tail end of the outer tube 5 is connected with a fixed handle 1, and the tail end of the push rod 6 is connected with a movable handle 2 (which can be connected through a pulley 3). The front end of the push rod 6 is connected with the tail ends of three blades 7 which can be opened in an umbrella shape, the front end of each blade 7 is retracted into the outer tube 5 to be closed or extends out of the outer tube 5 to be opened in an umbrella shape under the driving of the movable handle 2 and the push rod 6, namely, the three blades 7 can be opened in an umbrella shape when being partially exposed out of the outer tube 5 and closed when being completely retracted. The front end of each blade 7 is provided with a magnet buckle 8, each magnet buckle 8 comprises a magnet disc 20 connected to the front end of each blade 7 and a snap fastener used for clamping a single layer of the opening part of the specimen bag cover 9, the magnet discs 20 and the snap fasteners attract each other through magnetic force, and the specimen bag cover 9 is a disposable specimen bag cover with a pull ring and a tying rope 17.

Referring to fig. 4, in the present invention, the fixed handle 1 and the outer tube 5 are not located on the same straight line, i.e. the included angle between the two is greater than 0 ° and less than 180 °, so as to facilitate holding. A groove 11 with a rectangular and two-semicircular combined cross section is arranged on the fixed handle 1 along the length direction of the fixed handle, a long hole 10 is arranged in the groove 11 along the groove length direction, and the long hole 10 is connected with the square holes.

Referring to fig. 5, the movable handle 2 is provided with a wheel 12, the wheel 12 is composed of a wheel disc 13 and an axle 14, the wheel disc 13 is located in the groove 11, the axle 14 is inserted into the slot 10, the diameter of the axle 14 is the same as the width of the slot 10 and can slide freely in the slot 10, and the diameter of the wheel disc 13 is the same as the width of the groove 11 and can slide freely in the groove 11.

In the invention, a square hole penetrating through the groove 11 for inserting the fixing plug 4 is arranged on the wheel disc 13, the cross section of the groove 11 is a combination of a rectangle and two semicircles, referring to fig. 6, the fixing plug 4 is a solid block with four radial symmetry, and consists of a cuboid with a square section and a cylinder, wherein the cuboid is matched with the groove 11 in part shape, namely a square hole, the relative position between the fixing wheel 12, the groove 11 and the long hole 10 is unchanged when the cuboid is inserted into the groove 11 through the square hole, and the cuboid is not directly connected with other parts when the cuboid is not positioned in the groove 11.

Referring to fig. 7, in the present invention, the blade 7 is L-shaped, and includes a long arm 18 and a short arm 19, wherein the ends of the long arms 18 are connected to each other and the front end of the push rod 6, and can be received in the outer tube 5, the short arm 19 extends outward, and the magnet disc 20 is fixed on the short arm 19 on the side far from the long arm 18. The snap fastener comprises a female buckle 16 and a male buckle 15, the male buckle 15 generates opening and closing force when the raised dots are pressed into the holes of the female buckle 16 to clamp the specimen sleeve bag 9, and the part of the specimen sleeve bag 9 close to the opening of the bag is fixed on the blade 7 under the buckling state of the snap fastener. Because three magnet buttons 8 fixed on the short arm 19 attract each other, the blade 7 can be closed quickly after being completely retracted into the outer tube 5, and the first sealing of the specimen cap bag 9 is realized. When the magnet button 8 is fastened, a certain gap is formed between the male button 15 and the female button 16, and the single layer of the specimen bag 9 can be accommodated and clamped.

In the invention, the fixed handle 1, the fixed plug 4, the outer tube 5, the push rod 6 and the wheels 12 are all made of medical stainless steel, the pulley 3 is made of ABS plastic, and the blades 7 are made of nickel-titanium alloy or other memory alloys which can be repeatedly sterilized by the existing surgical sterilization method and can be bent for 3 ten thousand times or more.

The magnet disc 20, the female buckle 16 and the male buckle 15 are all made of neodymium iron boron solid strong magnets or other available strong magnetic materials harmless to human bodies, attractive magnetic force is formed between the magnet disc 16 and the male buckle 15, attractive magnetic force is formed between the magnet disc 20 and the male buckle 15, the attractive magnetic force is formed between the magnet disc 20 and the snap fasteners, and the part, close to the bag opening, of the specimen pocket 9 can be fixed on the short arm 19. The size of the magnet buckle 8 can be adjusted according to the specification of the blade 7, but the magnetic field intensity is ensured to be not more than 200mT at most.

When the device is used, the exposed lengths of the blades 7 of the magnetic quick extractor for the tissue resected in the endoscopic surgery are adjusted according to the size of the tissue or organ to be bagged, the sample bagging bag 9 with the appropriate size is selected, the longest blade 7 can reach 200mm, and when the included angles of the three blades form 90 degrees, for example, the maximum blade can be filled with the tissue or organ with the diameter of 300 mm. Before operation, the magnet discs 20 and the male buckles 15 of the magnet buckles 8 are separated from the female buckles 16, a circle of part of the specimen bagging 9 with a proper specification, which is positioned on the inner side of the tying rope 17, is divided into three equal parts, each equal division point is positioned on one male buckle 15, then the female buckles 16 are buckled, the bottoms of the 3 male buckles 15 are respectively connected with the 3 magnet discs 20 in an attraction mode, and the part, close to the bag opening, of the specimen bagging 9 is fixed on the short arm 19.

When needing bagging-off in the art, send into patient's abdominal cavity through peritoneoscope operation puncture hole site with outer tube 5 front end, extract fixed stopper 4, make movable handle 2's wheel 12 along recess 11 to the one side that fixed handle 1 kept away from outer tube 5 remove to blade 7 and have stretched out suitable length and open automatically, strut the sack of sample cover bag 9. At this time, the cuboid part of the fixed plug 4 is completely pushed into the square hole of the wheel disc 13, and the positions of the fixed movable handle 2 and the fixed handle 1 are relatively unchanged. After the tissue or organ needing to be bagged is bagged, the fixed plug 4 is pulled out, the wheel 12 of the movable handle 2 moves to one side of the fixed handle 1 close to the outer tube 5 along the groove 11 to the maximum extent that the blade 7 is taken in the outer tube 5, and then the cuboid part of the fixed plug 4 is completely pushed into the square hole of the wheel disc 13. At this time, 3 magnet buttons 8 fixed on the short arms attract each other, so that the blade 7 is closed quickly after being completely retracted into the outer tube 5, and the first sealing of the specimen bag 9 is realized. And then the pull ring positioned on the specimen cap bag 9 is pulled to realize the secondary sealing of the specimen cap bag 9. If the blade 7 is required to be withdrawn from the abdominal cavity, and the sample bag 9 after the secondary sealing is left in the body of the patient, the magnet disc 20 and the male buckle 15 can be separated by using pliers.