Multifunctional trocar for laparoscopic surgery

Abstract

The utility model relates to the field of medical instruments, and discloses a multifunctional trocar for laparoscopic surgery, which comprises a trocar outer sleeve positioned below the trocar, two groups of symmetrical vertical accommodating grooves are arranged on the outer walls of two sides of the trocar outer sleeve close to the bottom end, and suture steel needles are hinged to the bottom ends of the accommodating grooves on two sides of the trocar outer sleeve. A threading hole is formed in the needle point of the top end of each suture steel needle, each suture steel needle is connected with a suture line through the corresponding threading hole, an integrated base ring base is fixedly arranged at the top end of the trocar outer sleeve, overturning bouncing needle mechanisms connected with the suture steel needles are arranged on the two sides of the base ring base, and when the trocar is pulled out, the suture steel needles can be bounced out, the two suture steel needles directly penetrate out of the peritoneum, and sewing is completed. The problems that in the prior art, peritoneum suture is not good due to the fact that a fat layer is thick, operation needs to be conducted after a trocar is pulled out when a minimally invasive fascia closer is used for suturing an incision, postoperation hole puncturing complications are likely to be caused, and the operation time and the operation cost are increased are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a multifunctional poking card for laparoscopic surgery. Background Art

[0002] Laparoscopic surgery, as one of the main treatment methods of minimally invasive surgery, has been widely used. Laparoscopic surgery involves making three to five small holes in the patient's abdomen, inserting the camera and surgical instruments into the abdominal cavity through a converter, and displaying the images of the abdominal cavity obtained by the camera on the screen through a data cable. The surgeon observes the images on the display screen and uses the surgical instruments inserted into the abdominal cavity to perform the operation. The development of laparoscopic surgery has reduced the pain of surgery for patients and shortened the recovery period of patients. It is a surgical technique that has developed rapidly in recent years.

[0003] In laparoscopic surgery, in order to allow slender surgical instruments to enter the cavity through the surgical approach, a special channel is mainly established by a poke card. A puncture hole is established through an incision of 5-10 mm, and a poke card is inserted to establish a passage. Slender surgical forceps, electric hooks, ultrasonic knives and other surgical instruments enter the cavity through the poke card to perform surgical operations to remove lesions. The current specifications of the poke card are 5mm-12mm. Generally, for abdominal wall poke holes larger than 5mm, these poke card cuts need to be sutured and closed after the operation. However, due to the small diameter of the poke hole, it is very difficult to close the various layers of abdominal tissue in such a narrow space. Improper suturing of the poke hole can easily cause postoperative poke hole complications, such as bleeding, poke hole hernia, poke hole effusion and severe infection, which is not conducive to the patient's recovery.

[0004] At present, the puncture hole suture is generally done by doctors using suture needles and manual suture. This method has high requirements for suturing technology, especially in the case of thick fat layer. Since the hole diameter does not exceed 12mm, it is difficult to sew to the peritoneal layer. In addition, the puncture hole can only be sutured after the operation is completed and the puncture card is pulled out. This is prone to subcutaneous emphysema, and unreliable suture is prone to postoperative puncture hole hernia. Chinese patent publication number CN105266859A discloses a minimally invasive fascia closure device to suture the incision, but the entire operation cannot be completed by one instrument. The puncture card needs to be removed and another instrument needs to be used for suturing. The insertion and removal of the instrument increases the operation time, increases the additional damage to the incision, increases the risk of wound infection, and increases the cost of surgery. For this reason, we propose a multifunctional puncture card for laparoscopic surgery. Utility Model Content

[0005] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a multifunctional poking card for laparoscopic surgery, including a poking card outer sleeve located below the poking card, two groups of symmetrical vertical accommodating grooves are provided on the outer walls on both sides of the poking card outer sleeve near the bottom end, suture steel needles are hinged at the bottom ends of the accommodating grooves on both sides of the poking card outer sleeve corresponding to the accommodating grooves on both sides, a threading hole is provided at the top needle tip of the suture steel needle and a suture thread is connected through the threading hole, an integrated base ring seat is fixed at the top of the poking card outer sleeve, and flipping needle mechanisms connected to the suture steel needles are provided on both sides of the poking card outer sleeve and both sides of the base ring seat.

[0007] Furthermore, the opening thickness of the accommodating groove is greater than the thickness of the suture steel needle, and the suture steel needle and the suture thread are completely filled in the accommodating groove.

[0008] Furthermore, the flipping needle mechanism includes a driving connecting rod, a flipping rod and a lifting mechanism. An open arc groove is provided at the lower end of the bottom inner wall of the accommodating groove of the poking and card outer sleeve, and a cylindrical through groove extending to the base ring seat is provided on the top inner wall of the tube wall of the poking and card outer sleeve corresponding to the open arc groove. A driving connecting rod is slidably inserted in the cylindrical through groove. The driving connecting rod is parallel to the suture steel needle and there is a gap between them. The bottom end of the driving connecting rod is exposed through the open arc groove. A flipping rod is fixedly installed on the side outer wall corresponding to the bottom hinge of the suture steel needle, and the other end of the flipping rod is hinged to the bottom end of the driving connecting rod, and there is a gap between the top of the driving connecting rod and the top inner wall of the cylindrical through groove.

[0009] Furthermore, the turning rod is horizontal and perpendicular to the suture steel needle and the driving connecting rod.

[0010] Furthermore, the lifting mechanism includes a horizontal push rod, a lifting triangle plate and a reset spring. The two sides of the poking and carding outer sleeve corresponding to the base ring seat are provided with plug-in rod horizontal grooves that communicate with the cylindrical through grooves. Horizontal push rods are inserted into the two sides of the base ring seat through the plug-in rod horizontal grooves. The ends of the two groups of horizontal push rods that face away from each other are located on the outside of the base ring seat and are fixedly connected with a disc plate. A reset spring is connected between the disc plate and the side outer wall of the base ring seat. The reset spring is sleeved on the horizontal push rod, and the lifting triangle plate is fixedly connected to the outer wall of the end face of the horizontal push rod located in the plug-in rod horizontal groove.

[0011] Furthermore, the lifting triangle plate has a sharp end facing away from the horizontal push rod, and the top outer wall of the lifting triangle plate is inclined, that is, the cross-section of the lifting triangle plate is a right triangle, and a through-type lifting vertical groove is provided near the top of the driving connecting rod. The sharp end of the lifting triangle plate is inserted into the lifting vertical groove provided on the driving connecting rod, and the sharp end of the lifting triangle plate is in contact with the top inner wall of the lifting vertical groove.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] When the multifunctional poking card is used for laparoscopic surgery, the suture needles and suture threads are filled in the accommodating grooves and do not protrude from the outside of the poking card outer sleeve, and the portion of the poking card outer sleeve that is inserted into the human body must include the portion with the accommodating groove, and the area with the base ring seat at the top of the poking card outer sleeve is located outside the human body; after the operation, the poking card can be pulled out and the suture needles on both sides of the poking card outer sleeve can be flipped and tilted out of the poking card outer sleeve by operating the flipping needle mechanism, and the needle tips of the suture needles with suture threads are facing outside the body. When the poking card is pulled out, the suture needles on both sides directly penetrate the peritoneum to complete the sewing, thereby solving the problems in the prior art that the peritoneum is not sutured well due to the thick fat layer and that the poking card needs to be pulled out for operation when the incision is sutured using a minimally invasive fascia closure device, which easily causes postoperative puncture complications and increases the operation time and operation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the outer sleeve of the card punching device;

[0016] Figure 3 for Figure 2 A local enlarged schematic diagram of the A in FIG.

[0017] Figure 4 for Figure 2 A local enlarged schematic diagram of point B in the figure.

[0018] In the figure: 1-poking card outer sleeve; 2-suture steel needle; 3-accommodating groove; 4-base ring seat; 5-flipping needle mechanism; 6-open arc groove; 7-cylindrical through groove; 8-driving connecting rod; 9-flip rod; 10-transverse push rod; 11-lifting triangle plate; 12-lifting vertical groove; 13-reset spring; 14-disc plate; 15-insertion rod transverse groove. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] See also Figure 1-4A multifunctional poking card for laparoscopic surgery comprises a poking card outer sleeve 1 located below the poking card, two groups of symmetrical vertical accommodating grooves 3 are provided on the outer walls on both sides of the poking card outer sleeve 1 near the bottom end, suture steel needles 2 are hinged at the bottom ends of the accommodating grooves 3 on both sides of the poking card outer sleeve 1, a threading hole is provided at the top needle tip of the suture steel needle 2 and a suture thread is connected through the threading hole, an integrated base ring seat 4 is fixed at the top of the poking card outer sleeve 1, and flipping needle elastic mechanisms 5 connected with the suture steel needle 2 are provided on both sides of the poking card outer sleeve 1 and both sides of the base ring seat 4.

[0021] The opening thickness of the accommodating groove 3 is greater than the thickness of the suture steel needle 2, and the suture steel needle 2 and the suture thread are completely filled in the accommodating groove 3. When the multifunctional puncture card is used for laparoscopic surgery, the suture steel needle 2 and the suture thread are both filled in the accommodating groove 3 and do not protrude from the outside of the puncture card outer sleeve 1, ensuring that the part of the puncture card outer sleeve 1 inserted into the human body must include the part with the accommodating groove 3.

[0022] The flipping needle mechanism 5 includes a driving connecting rod 8, a flipping rod 9 and a lifting mechanism. An open arc groove 6 is provided at the lower end of the bottom inner wall of the accommodating groove 3 of the puncturing outer sleeve 1. A cylindrical through groove 7 extending to the base ring seat 4 is provided on the top inner wall of the tube wall of the puncturing outer sleeve 1 corresponding to the open arc groove 6. The driving connecting rod 8 is slidably inserted in the cylindrical through groove 7. The driving connecting rod 8 is parallel to the suture steel needle 2 and there is a gap. The bottom end of the driving connecting rod 8 is exposed through the open arc groove 6. A flipping rod 9 is fixedly installed on the side outer wall of the hinged bottom end of the suture steel needle 2, and the other end of the flipping rod 9 is hinged to the bottom end of the driving connecting rod 8. There is a gap between the top of the driving connecting rod 8 and the top inner wall of the cylindrical through groove 7 to ensure that the driving connecting rod 8 has room to rise.

[0023] The turning rod 9 is horizontal and perpendicular to the suture steel needle 2 and the driving connecting rod 8 .

[0024] The lifting mechanism includes a horizontal push rod 10, a lifting triangle plate 11 and a reset spring 13. The two sides of the piercing outer sleeve 1 corresponding to the base ring seat 4 are provided with a rod insertion horizontal groove 15 communicated with the cylindrical through groove 7. The two sides of the base ring seat 4 are connected with horizontal push rods 10 through the rod insertion horizontal groove 15. The ends of the two groups of horizontal push rods 10 that are away from each other are located on the outside of the base ring seat 4 and are fixedly connected with a disc plate 14. A reset spring 13 is connected between the disc plate 14 and the side outer wall of the base ring seat 4. The reset spring 13 is sleeved on the horizontal push rod 10, and the lifting triangle plate 11 is fixedly connected to the outer wall of the end face of the horizontal push rod 10 located in the rod insertion horizontal groove 15.

[0025] The lifting triangle plate 11 has a sharp end facing away from the horizontal push rod 10, and the top outer wall of the lifting triangle plate 11 is inclined, that is, the cross-section of the lifting triangle plate 11 is a right triangle, and a through-type lifting vertical groove 12 is provided near the top of the driving connecting rod 8. The sharp end of the lifting triangle plate 11 is inserted into the lifting vertical groove 12 provided on the driving connecting rod 8, and the sharp end of the lifting triangle plate 11 is fitted with the top inner wall of the lifting vertical groove 12, and the top inner wall of the lifting vertical groove 12 is contacted by the inclined top of the lifting triangle plate 11. As the lifting triangle plate 11 is advanced, the driving connecting rod 8 will be squeezed to rise through the gradually increasing top. The rising of the driving connecting rod 8 will pull the flip rod 9 to flip, thereby prompting the suture steel needles 2 on both sides of the puncturing outer sleeve 1 to flip and tilt out of the puncturing outer sleeve 1.

[0026] Working principle: When the multifunctional punch card is used for laparoscopic surgery, the suture needle 2 and the suture thread are filled in the receiving groove 3 and do not protrude from the outside of the punch card outer sleeve 1, and the part of the punch card outer sleeve 1 inserted into the human body must include the part with the receiving groove 3, and the area where the base ring seat 4 is provided at the top of the punch card outer sleeve 1 is located outside the human body; after the operation is completed, the punch card can be pulled out and the disc plates 14 on both sides can be squeezed toward the center of the inner base ring seat 4, and the reset spring 13 can be compressed and deformed, so that the horizontal push rod 10 can be synchronously pushed horizontally through the disc plates 14 on both sides. The lifting triangle plates 11 are moved horizontally and moved toward each other at the same time, and the inclined top ends of the lifting triangle plates 11 are squeezed and contacted with the top inner wall of the lifting vertical groove 12. As the lifting triangle plates 11 are advanced, the connecting rod 8 is squeezed and driven to rise through the gradually increasing top. The rising of the connecting rod 8 pulls the flip rod 9 to flip, thereby causing the suture needles 2 on both sides of the poking card outer sleeve 1 to flip and tilt out of the poking card outer sleeve 1, and the needle tips of the suture needles 2 with sutures are facing outside the body. When the poking card is pulled out, the sewing is completed by directly piercing the peritoneum on both sides.

[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional poking card for laparoscopic surgery, characterized in that: The invention comprises a card punching outer sleeve (1) located below the card punching, wherein two groups of symmetrical vertical receiving grooves (3) are provided on the outer walls of both sides of the card punching outer sleeve (1) near the bottom end, and suture steel needles (2) are hingedly connected at the bottom ends of the receiving grooves (3) on both sides of the card punching outer sleeve (1), and a threading hole is provided at the needle tip of the top end of the suture steel needle (2) and a suture thread is connected through the threading hole, and an integrated base ring seat (4) is fixedly provided at the top end of the card punching outer sleeve (1), and flipping needle spring mechanisms (5) connected to the suture steel needles (2) are provided on both sides of the card punching outer sleeve (1) and both sides of the base ring seat (4).

2. The multifunctional puncture card for laparoscopic surgery according to claim 1, characterized in that: The opening thickness of the accommodating groove (3) is greater than the thickness of the suture steel needle (2), and the suture steel needle (2) and the suture thread are completely filled in the accommodating groove (3).

3. The multifunctional puncture card for laparoscopic surgery according to claim 1, characterized in that: The flipping needle mechanism (5) comprises a driving connecting rod (8), a flipping rod (9) and a lifting mechanism. An open arc groove (6) is provided at the lower end of the bottom inner wall of the corresponding accommodating groove (3) of the poking card outer sleeve (1). A cylindrical through groove (7) extending to the base ring seat (4) is provided in the tube wall of the poking card outer sleeve (1) at the top inner wall corresponding to the open arc groove (6). The driving connecting rod (8) is slidably inserted in the cylindrical through groove (7). The driving connecting rod (8) is parallel to the suture steel needle (2) and there is a gap. The bottom end of the driving connecting rod (8) is exposed through the open arc groove (6). A flipping rod (9) is fixedly installed on the side outer wall of the corresponding bottom hinge of the suture steel needle (2), and the other end of the flipping rod (9) is hinged to the bottom end of the driving connecting rod (8). There is a gap between the top end of the driving connecting rod (8) and the top inner wall of the cylindrical through groove (7).

4. The multifunctional puncture card for laparoscopic surgery according to claim 3, characterized in that: The turning rod (9) is horizontal and perpendicular to the suture steel needle (2) and the driving connecting rod (8).

5. The multifunctional puncture card for laparoscopic surgery according to claim 3, characterized in that: The lifting mechanism comprises a transverse push rod (10), a lifting triangle plate (11) and a reset spring (13). The two sides of the piercing outer sleeve (1) corresponding to the base ring seat (4) are provided with a rod insertion groove (15) which is communicated with the cylindrical through groove (7). The two sides of the base ring seat (4) are connected with transverse push rods (10) through the rod insertion groove (15). The ends of the two groups of transverse push rods (10) facing away from each other are located on the outside of the base ring seat (4) and are fixedly connected with a disc plate (14). A reset spring (13) is connected between the disc plate (14) and the side outer wall of the base ring seat (4). The reset spring (13) is sleeved on the transverse push rod (10). The outer wall of the end surface of the transverse push rod (10) located in the rod insertion groove (15) is fixedly connected with a lifting triangle plate (11).

6. The multifunctional stamping card for laparoscopic surgery according to claim 5, characterized in that: The lifting triangle plate (11) has a sharp end facing away from the horizontal push rod (10), and the outer wall of the top end of the lifting triangle plate (11) is inclined, that is, the cross-section of the lifting triangle plate (11) is a right triangle, and the driving connecting rod (8) is provided with a through-type lifting vertical groove (12) near the top end, and the sharp end of the lifting triangle plate (11) is inserted into the lifting vertical groove (12) provided on the driving connecting rod (8), and the sharp end of the lifting triangle plate (11) is in contact with the inner wall of the top end of the lifting vertical groove (12).

Images