Laparoscopic suturing auxiliary device and laparoscopic suturing method

Abstract

The present invention belongs to the field of medical technology, and in particular, relates to a laparoscopic suturing auxiliary device and a laparoscopic suturing method. The laparoscopic suturing auxiliary device of the present invention comprises: an adsorption platform and a device body, the adsorption platform is telescopically arranged on the side of the device body close to its distal end, at least a part of the outer surface of the adsorption platform is a magnetic surface capable of adsorbing suture needles, and the adsorption platform comprises an extended position and a retracted position, wherein when the adsorption platform is in the retracted position, the outer surface of the adsorption platform is retracted to the inner side of the outer wall of the device body; when the adsorption platform is in the extended position, the outer surface of the adsorption platform protrudes from the outer wall of the device body to adsorb the suture needles. In the present invention, by providing a retractable adsorption platform, it is possible to prevent the suture needles from being freely scattered in the abdominal cavity during the laparoscopic suturing process, thereby shortening the needle-finding time and reducing the difficulty of needle-finding, avoiding damage to abdominal tissue, and enabling the operator to hold the needle quickly and easily.

Description

Technical Field

[0001] The invention belongs to the field of medical technology, and in particular relates to a laparoscopic suturing auxiliary device and a laparoscopic suturing method. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgery and is an inevitable trend in the future development of surgery. Compared with traditional open surgery, the advantages of laparoscopic surgery are very obvious. First, the trauma is very small. Usually only 2-4 small incisions are needed to insert the corresponding laparoscopic surgical instruments into the abdominal cavity of the human body. Second, the surgical instruments are inserted directly into the body, which can minimize the damage to the surrounding tissues. Third, the pain of the patient's wound after surgery is significantly reduced. Fourth, the patient recovers quickly after surgery and has fewer days of hospitalization, which is conducive to accelerating the turnover rate of hospital wards.

[0003] During laparoscopic surgery, the surgical wound is sutured by clamping the suture needle with a laparoscope needle holder and inserting it into the abdominal cavity to suture the surgical wound with sutures. At the same time, auxiliary devices such as grasping forceps are used to assist the suturing operation, such as thread pulling and clamping or compressing bleeding points. In the existing subperitoneal suturing operation, after the needle is removed, the suture needle will be naturally thrown aside (needle throwing), and then the suture at the wound suture will be tightened (thread pulling). Since the suture needle is in an unfixed state in the abdominal cavity at this time, the thread pulling operation is likely to cause damage to the abdominal tissue. At the same time, after the suture is tightened, the suture needle needs to be found again, which takes a long time, especially when the suture is long during the first few stitches of the wound. After the needle is thrown, the suture needle may fall outside the field of vision, making it more difficult to find the needle.

[0004] In addition, after finding the suture needle, it is necessary to hold the needle again and adjust it to the appropriate needle holding angle and position for the next needle insertion operation. Among them, since the operation under laparoscopy is limited by space and freedom, it is difficult to hold the needle. There are two methods of holding the needle: one-handed holding method and two-handed holding method. In the one-handed holding method, when the position of the suture needle is not appropriate, the abdominal tissue needs to be used to push the suture needle to the appropriate position. This method is not only difficult to operate but also easy to cause tissue damage; in the two-handed holding method, the suture needle needs to be adjusted to the needle holding position by pulling or rotating the suture through an auxiliary device, and then the appropriate part of the suture needle is clamped by the laparoscopic needle holder to complete the needle holding. However, since the auxiliary device may need to clamp or compress the bleeding point, it cannot effectively cooperate with the laparoscopic needle holder to hold the needle. Summary of the invention

[0005] The present invention provides a laparoscopic suturing auxiliary device and a laparoscopic suturing method, which are used to solve the technical problems in the prior art of laparoscopic wound suturing, that is, the suture needle has no fixed position after being removed from the needle, resulting in a long needle-finding time and easy abdominal combined damage, and at the same time is conducive to reducing the difficulty of holding the needle.

[0006] A first aspect of the present invention provides a laparoscopic suturing auxiliary device, comprising: an adsorption platform and a device body,

[0007] The adsorption platform is telescopically arranged on the side of the device body close to the distal end thereof, and at least a part of the outer surface of the adsorption platform is a magnetic surface capable of adsorbing the suture needle.

[0008] The adsorption platform includes an extended position and a retracted position,

[0009] When the adsorption platform is located at the retracted position, the outer side surface of the adsorption platform is retracted inside the outer wall of the device body; when the adsorption platform is located at the extended position, the outer side surface of the adsorption platform protrudes from the outer wall of the device body to adsorb the suture needle.

[0010] In one embodiment, a groove for accommodating the suture needle is provided on the magnetic surface of the adsorption platform.

[0011] In one embodiment, the outer surface of the adsorption platform is configured as a curved surface.

[0012] In one embodiment, the first drive mechanism is included.

[0013] The device body has an inner cavity, and one end of the first driving mechanism penetrates into the inner cavity of the device body to be connected with the inner side surface of the adsorption platform to drive the adsorption platform to extend and retract along the radial direction of the device body.

[0014] In one embodiment, the first driving mechanism includes a lever, a first adjusting rod and a connecting rod mechanism.

[0015] The first adjusting rod and the connecting rod mechanism are both arranged in the inner cavity of the device body, and the first adjusting rod extends along the axial direction of the device body.

[0016] The lever is disposed on the outer wall of the proximal end of the device body, and the lever is connected to the first end of the first adjusting rod to drive the first adjusting rod to move along the axial direction relative to the device body.

[0017] The second end of the first adjusting rod is connected to the inner side of the adsorption platform through the connecting rod mechanism, and the connecting rod mechanism is used to convert the axial movement of the first adjusting rod relative to the device body into the radial telescopic movement of the adsorption platform relative to the device body.

[0018] In one embodiment, the link mechanism includes: a first link and a second link, wherein the first end of the first link is rotatably connected to the inner side wall of the adsorption platform, the second end of the first link is hinged to the first end of the second link, and the second end of the second link is rotatably connected to the inner wall of the device body.

[0019] The second end of the first adjusting rod is connected to the hinge point between the first connecting rod and the second connecting rod.

[0020] Wherein, moving the lever can drive the first end of the first connecting rod to reciprocate along the radial direction of the device body through the adjusting rod, so that the adsorption platform can be extended and retracted along the radial direction of the device body.

[0021] In one embodiment, the first driving mechanism includes a control button, a micro motor and a driving shaft.

[0022] The control button is arranged on the outer wall of the proximal end of the device body, and the control button is electrically connected to the micro motor.

[0023] The micro motor is arranged on the inner wall of the device body and is arranged opposite to the adsorption platform along the radial direction of the device body.

[0024] The driving shaft extends in the radial direction of the device body, the first end of the driving shaft is connected to the rotor of the micro motor, and the second end of the driving shaft is threadedly connected to the inner side of the adsorption platform.

[0025] Among them, pressing the control button can control the rotor of the micro motor to rotate clockwise or counterclockwise by a preset angle, thereby driving the adsorption to expand and contract radially along the device body.

[0026] In one embodiment, the second end of the driving shaft is provided with a thread, and correspondingly, a threaded hole for matching with the second end of the driving shaft is provided on the inner side surface of the adsorption platform.

[0027] In one embodiment, the device body includes a grasping mechanism that can be opened and closed, a tube body, and a second driving mechanism.

[0028] The second driving mechanism includes a second adjusting rod and a holding portion,

[0029] The grasping mechanism is arranged at the distal end of the tube body, the holding handle is arranged at the proximal end of the tube body, the second adjusting rod is arranged inside the tube body, and the holding portion is connected to the grasping mechanism through the second adjusting rod to drive the grasping mechanism to open and close;

[0030] The adsorption platform is telescopically arranged on the side surface of the tube body close to the distal end thereof.

[0031] The second aspect of the present invention provides a laparoscopic suturing method, which suturing a wound in the abdominal cavity with the assistance of the above-mentioned laparoscopic suturing auxiliary device.

[0032] The method comprises the following steps:

[0033] Step 1: inserting the proximal end of the laparoscopic needle holder carrying the suture needle into the abdominal cavity to perform a suturing operation, and at the same time inserting the proximal end of the laparoscopic suturing auxiliary device into the abdominal cavity to assist the suturing operation;

[0034] Step 2: clamping the suture needle with the laparoscopic needle holder to perform a needle insertion operation on the wound, and after completing the needle insertion operation, the adsorption platform of the laparoscopic suturing auxiliary device extends out from the outer wall of the device body;

[0035] Step 3: Move the suture needle to the adsorption platform through the laparoscopic needle holder, release the suture needle to make it adsorbed on the outer surface of the adsorption platform, and then perform the wire pulling operation through the laparoscopic needle holder;

[0036] Step 4: After the thread pulling operation is completed, the suture needle is removed from the adsorption table by the laparoscope needle holder; and

[0037] Step 5: Repeat steps 2 to 4 for a preset number of times until suturing is completed.

[0038] Compared with the prior art, the advantages of the present invention are:

[0039] (1) In the present invention, a retractable adsorption platform is provided on the side surface of the laparoscopic suturing auxiliary device near its distal end. During the suturing operation under laparoscopy, the adsorption platform extends from the outer wall of the laparoscopic suturing auxiliary device to adsorb the suture needle, thereby preventing the suture needle from scattering freely in the abdominal cavity, shortening the needle finding time and reducing the difficulty of needle finding, and also preventing abdominal tissue damage caused by the movement of the suture needle during the thread pulling operation.

[0040] (2) When the needle is held again after the thread pulling operation, since the suture needle is adsorbed on the adsorption table, the operator does not need to adjust the suture needle to the needle holding position, and can hold the needle quickly and easily.

[0041] (3) In the present invention, the adsorption platform on the laparoscopic suturing assisting device has a telescopic function, so that when the laparoscopic suturing assisting device is not used to assist in suturing operations, the adsorption platform can be retracted into the device body to avoid affecting other operations of the device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0043] Figure 1 The structure of the laparoscopic suturing auxiliary device in the first embodiment of the present invention is shown in FIG. Figure 1 (the adsorption table is in the extended position);

[0044] Figure 2The structure of the laparoscopic suturing auxiliary device in the first embodiment of the present invention is shown in FIG. Figure 2 (the adsorption table is in the retracted position);

[0045] Figure 3 is a radial cross-sectional view of the laparoscopic suturing auxiliary device in the first embodiment of the present invention;

[0046] Figure 4 The structure of the laparoscopic suturing auxiliary device in the second embodiment of the present invention is shown in FIG. Figure 1 (the adsorption table is in the extended position);

[0047] Figure 5 The structure of the laparoscopic suturing auxiliary device in the second embodiment of the present invention is shown in FIG. Figure 2 (the adsorption table is in the retracted position);

[0048] Figure 6 is a structural schematic diagram of a second adjusting rod in a second embodiment of the present invention;

[0049] Figure 7 It is a schematic diagram of the state of assisting the suturing operation by the laparoscopic suturing auxiliary device of the present invention;

[0050] Figure 8 It is a flow chart of the laparoscopic suturing method of the present invention.

[0051] Reference numerals:

[0052] 10. Laparoscopic suturing auxiliary device; 20. Laparoscopic needle holder; 30. Suture needle;

[0053] 101. adsorption platform; 102. tube body; 103. grasping forceps mechanism; 104. holding part;

[0054] 105, second adjustment rod; 1011, threaded hole; 1021, mounting hole; 1051, through hole;

[0055] 1061, lever; 1062, first adjustment lever; 1063, first connecting rod; 1064, second connecting rod;

[0056] 1071. control button; 1072. micro motor; 1073. drive shaft. DETAILED DESCRIPTION

[0057] The present invention will be further described below with reference to the accompanying drawings. It should be understood that the terms "distal end" and "proximal end" in the present invention should be understood as viewed from the direction of the operator, where the "distal end" is the end away from the operator and the "proximal end" is the end close to the operator.

[0058] like Figure 1-7As shown in the figure, the laparoscopic suturing auxiliary device 10 of the present invention comprises: a device body and an adsorption platform 101. The adsorption platform 101 is telescopically arranged on the side of the device body close to its distal end, and at least a part of the outer surface of the adsorption platform 101 is a magnetic surface capable of adsorbing the suture needle 30. The adsorption platform 101 comprises an extended position and a retracted position, wherein when the adsorption platform 101 is in the retracted position, the outer side surface of the adsorption platform 101 is retracted to the inner side of the outer wall of the device body; when the adsorption platform 101 is in the extended position, the outer side surface of the adsorption platform 101 protrudes from the outer wall of the device body to adsorb the suture needle 30.

[0059] In the present invention, a retractable adsorption platform 101 is provided on the side of the laparoscopic suturing auxiliary device 10 near its distal end. During the suturing operation under laparoscopy, the adsorption platform 101 extends from the outer wall of the laparoscopic suturing auxiliary device 10 to adsorb the suture needle 30 (such as Figure 7 ), the suture needle 30 can be prevented from being scattered freely in the abdominal cavity, shortening the needle-finding time and reducing the difficulty of needle-finding, and also preventing damage to the abdominal cavity tissue caused by the movement of the suture needle 30 during the thread-pulling operation. At the same time, when the needle is held again after the thread-pulling operation, since the suture needle 30 is adsorbed on the adsorption platform 101, the operator does not need to adjust the suture needle 30 to the needle-holding position, and can hold the needle quickly and easily.

[0060] In addition, the adsorption platform 101 on the laparoscopic suturing assisting device 10 has a telescopic function, so that when the laparoscopic suturing assisting device 10 is not used for assisting suturing operations, the adsorption platform 101 can be retracted into the device body to avoid affecting other operations of the device body.

[0061] At the same time, since the outer side of the adsorption platform 101 is magnetic, when the adsorption platform 101 is in its extended position, the adsorption platform 101 can adsorb the sewing needle 30 by bringing the sewing needle 30 close to the adsorption platform 101 and releasing the sewing needle 30, so that the adsorption platform 101 can adsorb the sewing needle 30, which is easy to operate.

[0062] The laparoscopic suturing auxiliary device 10 of the present invention can greatly reduce the total time and operation difficulty of suturing wounds under laparoscopy, and reduce the damage to abdominal tissues.

[0063] The laparoscopic suturing auxiliary device 10 of the present invention is any instrument that can assist the laparoscopic needle holder 20 in performing suturing operations, such as a laparoscopic grasping forceps. In other words, the adsorption platform 101 of the present invention is arranged on an auxiliary instrument such as a laparoscopic grasping forceps.

[0064] Specifically, the device body of the laparoscopic suturing auxiliary device 10 includes a grasping mechanism 103 that can be opened and closed, a tube body 102, and a second driving mechanism, the second driving mechanism includes a second adjusting rod 105 and a holding portion 104, the grasping mechanism 103 is arranged at the distal end of the tube body 102, the holding handle is arranged at the proximal end of the tube body 102, the second adjusting rod 105 is arranged inside the tube body 102, and the holding portion 104 is connected to the grasping mechanism 103 through the second adjusting rod 105 to drive the grasping mechanism 103 to open and close. The adsorption platform 101 is telescopically arranged on the side of the tube body 102 near its distal end. Further, the proximal end of the grasping mechanism 103 is provided with a corresponding connecting rod mechanism, which can convert the axial movement of the second adjusting rod 105 into the opening and closing movement of the grasping mechanism 103.

[0065] The adsorption platform 101 will be described in detail below.

[0066] Preferably, a groove for accommodating the suture needle 30 is provided on the magnetic surface of the adsorption platform 101. The groove is provided for positioning the suture needle 30, so that the suture needle 30 is conveniently adsorbed on the adsorption platform 101. At the same time, the suture needle 30 is adsorbed in the groove, and the posture of the suture needle 30 can be controlled to a certain extent, so that the needle can be re-held.

[0067] It should be noted that the outer side surface of the adsorption platform 101 can be a magnetic surface in its entirety or in part, as long as it can provide sufficient adsorption force for adsorbing and fixing the suture needle 30 .

[0068] Preferably, the inner wall of the groove is a magnetic surface, and the outer wall of the adsorption platform 101 except the inner wall of the groove is a non-magnetic surface, so as to achieve accurate positioning of the suture needle 30.

[0069] Preferably, the outer side surface of the adsorption platform 101 is set to be a curved surface. The outer side surface of the adsorption platform 101 is rounded to avoid sharp parts from damaging abdominal tissue.

[0070] Specifically, a mounting hole 1021 for mounting the adsorption platform 101 is provided on the outer side wall of the device body. The mounting hole 1021 penetrates the device body in the radial direction, and the adsorption platform 101 can reciprocate in the mounting hole 1021 in the radial direction of the device body to achieve extension and retraction.

[0071] The first driving mechanism is described in detail below.

[0072] The laparoscopic suturing auxiliary device 10 comprises a first driving mechanism, and the first driving structure is used to drive the adsorption platform 101 to achieve extension and retraction. The first driving mechanism is connected to the inner side of the adsorption platform 101 to drive the adsorption platform 101 to extend and retract along the radial direction of the device body.

[0073] Embodiment 1

[0074] like Figure 1-3 As shown in , in this embodiment, the first driving mechanism includes a lever 1061, a first adjustment lever 1062 and a connecting rod mechanism. The lever 1061 is arranged on the outer wall of the proximal end of the device body, the first adjustment lever 1062 and the connecting rod mechanism are both arranged inside the device body, the first adjustment lever 1062 extends along the axial direction of the device body, the lever 1061 is connected to the first end of the first adjustment lever 1062 to drive the first adjustment lever 1062 to move along the axial direction relative to the device body, the second end of the first adjustment lever 1062 is connected to the inner side surface of the adsorption platform 101 through the connecting rod mechanism, and the connecting rod mechanism is used to convert the axial movement of the first adjustment lever 1062 relative to the device body into the radial telescopic movement of the adsorption platform 101 relative to the device body.

[0075] In the initial state, the adsorption platform 101 is in its retracted position. The lever 1061 is moved toward the proximal direction, which can drive the first adjustment rod 1062 to move along the axial direction of the device body toward the distal direction, thereby driving the connecting rod mechanism to extend along the radial direction of the device body, and then driving the adsorption platform 101 to move from its retracted position to its extended position; if the adsorption platform 101 needs to switch from the extended position to the retracted position, the lever 1061 is moved toward the distal direction, which can drive the first adjustment rod 1062 to move along the axial direction of the device body toward the proximal direction, thereby driving the connecting rod mechanism to contract along the radial direction of the device body, and then driving the adsorption platform 101 to move from its extended position to the retracted position. In this way, through the connecting rod mechanism, the axial movement of the first adjustment rod 1062 relative to the device body is converted into the radial telescopic movement of the adsorption platform 101 relative to the device body.

[0076] Specifically, the link mechanism includes: a first link 1063 and a second link 1064, wherein the first end of the first link 1063 is rotatably connected to the inner side wall of the adsorption platform 101, the second end of the first link 1063 and the first end of the second link 1064 are hinged to each other, the second end of the second link 1064 is rotatably connected to the inner wall of the device body, and the second end of the first adjustment rod 1062 is connected to the hinge point between the first link 1063 and the second link 1064. The toggle lever 1061 can drive the first end of the first link 1063 to reciprocate along the radial direction of the device body through the first adjustment rod 1062, thereby causing the adsorption platform 101 to expand and contract along the radial direction of the device body.

[0077] The link mechanism is composed of two mutually hinged links, a first link 1063 and a second link 1064. The two ends of the link mechanism are respectively connected to the inner wall of the adsorption platform 101 and the inner wall of the device body. By pushing / pulling the hinge of the two links by the first adjustment rod 1062, the link mechanism can be opened and closed along the radial direction of the device body. At the same time, since the position of the second end of the second link 1064 is fixed, the adsorption platform 101 can be driven to extend and retract.

[0078] More specifically, a first rotating shaft for connecting the first end of the first connecting rod 1063 is provided on the inner wall of the adsorption platform 101, and a second rotating shaft for connecting the second end of the second connecting rod 1064 is provided on the inner wall of the device body. The first connecting rod 1063 and the second connecting rod 1064 are hinged through a third rotating shaft, and the second end of the first adjusting rod 1062 is movably connected to the third rotating shaft.

[0079] Preferably, the first driving mechanism includes two connecting rod mechanisms that are spaced apart and arranged in parallel, and the second end of the first adjusting rod 1062 is connected to the inner wall of the adsorption platform 101 through the two connecting rod mechanisms to provide a more uniform driving force to the adsorption platform 101 .

[0080] The first driving mechanism of this embodiment does not need to be driven by a power element, occupies a small space, and is easy to arrange in a small space.

[0081] It should be noted that in the laparoscopic suturing assist device 10 of the present invention, a clamping mechanism is provided at the distal end of the tube body 102, and a second adjusting rod 105 extending axially is provided in the center of the interior of the tube body 102. Therefore, the first adjusting rod 1062 and the connecting rod mechanism should both be arranged in parallel on one side of the second adjusting rod 105.

[0082] Embodiment 2

[0083] The structure of the first driving mechanism in this embodiment is different from that of the first driving mechanism in the first embodiment.

[0084] like Figure 4-6 As shown in, in this embodiment, the first driving mechanism includes a control button 1071, a micro motor 1072 and a driving shaft 1073. The control button 1071 is arranged on the outer wall of the proximal end of the device body, the control button 1071 is electrically connected to the micro motor 1072, the micro motor 1072 is arranged on the inner wall of the device body and is arranged opposite to the adsorption platform 101 along the radial direction of the device body, the driving shaft 1073 extends along the radial direction of the device body, the first end of the driving shaft 1073 is connected to the rotor of the micro motor 1072, and the second end of the driving shaft 1073 is threadedly connected to the inner side of the adsorption platform 101, wherein pressing the control button 1071 can control the rotor of the micro motor 1072 to rotate clockwise or counterclockwise by a preset angle, thereby driving the adsorption to expand and contract along the radial direction of the device body.

[0085] Specifically, the second end of the driving shaft 1073 is provided with a thread, and correspondingly, a threaded hole 1011 for matching with the second end of the driving shaft 1073 is provided on the inner side surface of the adsorption platform 101 .

[0086] In this embodiment, the micro motor 1072 drives the adsorption platform 101 to extend and retract along the radial direction of the device body through thread transmission, and the structure is simple.

[0087] Preferably, the adsorption platform 101 is constructed as a cylinder with a circular radial cross section, and the axis of the adsorption platform 101 is in the same straight line as a diameter of the device body, so as to facilitate the rotation of the adsorption platform 101. Accordingly, the outer wall of the device body is provided with a circular mounting hole 1021 which penetrates along its radial direction for mounting the adsorption platform 101. The adsorption platform 101 can reciprocate along the penetration direction of the mounting hole 1021 to achieve telescoping, and the mounting hole 1021 can also guide the movement of the adsorption platform 101.

[0088] It should be noted that in the auxiliary device of the present invention, a clamp mechanism is provided at the distal end of the tube body 102, and a second adjustment rod 105 extending axially thereof is provided at the center of the tube body 102, so the second end of the drive shaft 1073 needs to pass through the second adjustment rod 105 and be connected to the inner wall of the adsorption platform 101. In other words, Figure 6 As shown in , a through hole 1051 is provided at a corresponding position of the second adjusting rod 105 , through which the driving shaft 1073 can pass.

[0089] In addition, a control module for controlling the micro motor 1072 can also be provided at the proximal end of the device body, and the control button 1071 and the micro motor 1072 are respectively electrically connected to the control module to control the micro motor 1072 to rotate counterclockwise or clockwise to a preset angle. Preferably, a power supply module is provided at the proximal end of the device body, and the power supply module is electrically connected to the micro motor 1072 to supply power to the micro motor 1072.

[0090] like Figure 8 As shown in , the present invention further provides a laparoscopic suturing method, in which the laparoscopic needle holder 20 sutures the wound in the abdominal cavity with the assistance of the above-mentioned laparoscopic suturing auxiliary device 10.

[0091] The method of the present invention comprises the following steps:

[0092] Step 1: insert the proximal end of the laparoscopic needle holder 20 carrying the suture needle 30 into the abdominal cavity to perform a suturing operation, and at the same time insert the proximal end of the laparoscopic suturing auxiliary device 10 into the abdominal cavity to assist the suturing operation.

[0093] Step 2: Use the laparoscope needle holder 20 to clamp the suture needle 30 and perform a needle threading operation on the wound. After completing the needle threading operation, the adsorption platform 101 of the laparoscopic suturing auxiliary device 10 is extended from the outer wall of the device body.

[0094] Step 3: Move the suture needle 30 to the adsorption platform 101 through the laparoscopic needle holder 20 , release the suture needle 30 so that it is adsorbed on the outer surface of the adsorption platform 101 , and then perform the wire pulling operation through the laparoscopic needle holder 20 .

[0095] Step 4: After the thread pulling operation is completed, the suture needle 30 is removed from the adsorption platform 101 through the laparoscope needle holder 20 .

[0096] Step 5: Repeat steps 2 to 4 for a preset number of times until suturing is completed.

[0097] In the present invention, the laparoscopic needle holder 20 sutures the wound with the assistance of the above-mentioned laparoscopic suturing auxiliary device 10. Compared with the prior art, in the present invention, a retractable adsorption table 101 is constructed on the laparoscopic suturing auxiliary device 10, thereby providing a temporary fixed position for the suture needle 30 in the abdominal cavity. After a needle threading operation, the suture needle 30 is adsorbed onto the adsorption table 101, thereby saving the time used for finding the needle, and preventing the suture needle 30 from damaging the abdominal tissue during the thread pulling operation, while reducing the difficulty of re-holding the needle, which can greatly reduce the total time and operation difficulty used for suturing the wound under laparoscopy.

[0098] In addition, laparoscopic surgery is more difficult than traditional open surgery, and it is more difficult to deal with bleeding. Suturing hemostasis is an effective way to stop bleeding under laparoscopy. The suturing operation method of the present invention can greatly reduce the total time and operation difficulty of suturing wounds under laparoscopy, which is of great significance for patients who are in a critical state of bleeding during surgery or may be converted to laparotomy.

[0099] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0100] The descriptions such as "upper" and "lower" mentioned in the present invention are defined according to the usual meaning. For example, with reference to the direction of gravity, the direction of gravity is downward, and the opposite direction is upward. Similarly, the upper end is the top end, and the lower end is the bottom end. "Inside and outside" refer to the inside and outside relative to the contours of each component itself. It is only for the convenience of description and is not used to limit the scope of the present invention. The change or adjustment of the relative relationship should be regarded as the scope of the present invention without substantial change in the technical content. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0101] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A laparoscopic suturing auxiliary device, characterized in that: include: Adsorption table and device body, The adsorption platform is telescopically arranged on the side of the device body close to the distal end thereof, and at least a part of the outer surface of the adsorption platform is a magnetic surface capable of adsorbing the suture needle. The adsorption platform includes an extended position and a retracted position, Wherein, when the adsorption platform is located at the retracted position, the outer side surface of the adsorption platform is retracted inside the outer wall of the device body; when the adsorption platform is located at the extended position, the outer side surface of the adsorption platform protrudes from the outer wall of the device body to adsorb the suture needle; The laparoscopic suturing auxiliary device also includes a first driving mechanism, The device body has an inner cavity, and one end of the first driving mechanism penetrates into the inner cavity of the device body to be connected with the inner side surface of the adsorption platform to drive the adsorption platform to extend and retract along the radial direction of the device body; The device body comprises a grasping mechanism that can be opened and closed, a tube body and a second driving mechanism. The second driving mechanism includes a second adjusting rod and a holding portion, The grasping mechanism is arranged at the distal end of the tube body, the holding portion is arranged at the proximal end of the tube body, the second adjusting rod is arranged inside the tube body, and the holding portion is connected to the grasping mechanism through the second adjusting rod to drive the grasping mechanism to open and close.

2. The laparoscopic suturing auxiliary device according to claim 1, characterized in that: A groove for accommodating the sewing needle is arranged on the magnetic surface of the adsorption platform.

3. The laparoscopic suturing auxiliary device according to claim 2, characterized in that: The outer side surface of the adsorption platform is configured as a curved surface.

4. The laparoscopic suturing auxiliary device according to any one of claims 1 to 3, characterized in that: The first driving mechanism includes a shifting rod, a first adjusting rod and a connecting rod mechanism. The first adjusting rod and the connecting rod mechanism are both arranged in the inner cavity of the device body, and the first adjusting rod extends along the axial direction of the device body. The lever is disposed on the outer wall of the proximal end of the device body, and the lever is connected to the first end of the first adjusting rod to drive the first adjusting rod to move along the axial direction relative to the device body. The second end of the first adjusting rod is connected to the inner side of the adsorption platform through the connecting rod mechanism, and the connecting rod mechanism is used to convert the axial movement of the first adjusting rod relative to the device body into the radial telescopic movement of the adsorption platform relative to the device body.

5. The laparoscopic suturing auxiliary device according to claim 4, characterized in that: The link mechanism comprises: a first link and a second link, wherein the first end of the first link is rotatably connected to the inner side wall of the adsorption platform, the second end of the first link is hinged to the first end of the second link, and the second end of the second link is rotatably connected to the inner wall of the device body. The second end of the first adjusting rod is connected to the hinge point between the first connecting rod and the second connecting rod. Wherein, moving the lever can drive the first end of the first connecting rod to reciprocate along the radial direction of the device body through the adjusting rod, so that the adsorption platform can be extended and retracted along the radial direction of the device body.

6. The laparoscopic suturing auxiliary device according to any one of claims 1 to 3, characterized in that: The first driving mechanism includes a control button, a micro motor and a driving shaft. The control button is arranged on the outer wall of the proximal end of the device body, and the control button is electrically connected to the micro motor. The micro motor is arranged on the inner wall of the device body and is arranged opposite to the adsorption platform along the radial direction of the device body. The driving shaft extends in the radial direction of the device body, the first end of the driving shaft is connected to the rotor of the micro motor, and the second end of the driving shaft is threadedly connected to the inner side of the adsorption platform. Among them, pressing the control button can control the rotor of the micro motor to rotate clockwise or counterclockwise by a preset angle, thereby driving the adsorption platform to extend and retract along the radial direction of the device body.

7. The laparoscopic suturing auxiliary device according to claim 6, characterized in that: The second end of the driving shaft is provided with a thread, and correspondingly, the inner side surface of the adsorption platform is provided with a threaded hole for matching with the second end of the driving shaft.

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