Minimally invasive surgical tool and method of using the same

Abstract

The present invention discloses a minimally invasive surgical tool and its usage method, which includes a forearm, a regulation tube, a regulator, and a regulation guide wire; the regulation guide wire passes through both ends of the regulation tube, and both ends of the regulation guide wire are respectively connected to the forearm and the regulator; the forearm is detachably and rotatably connected to the outer wall of the front part of the regulation tube, and a locking mechanism is arranged at the connection between the forearm and the regulation tube, and both ends of the regulation tube are through; the forearm includes a multi-functional surgical instrument, a connecting arm, and a regulation arm; the front and rear ends of the connecting arm are respectively connected to the multi-functional surgical instrument and the regulation arm; an included angle ω1 is formed between the multi-functional surgical instrument and the connecting arm, and an included angle ω2 is formed between the regulation arm and the connecting arm. The design of the present invention is simple and practical, easy to operate, can adjust the opening and closing degree of the minimally invasive surgical tool, the angle and position advancement and retreat of the cutting and sewing head, has multiple functions and uses, requires a small surgical wound and working area, reduces the number of surgical openings, reduces the pain of patients, and is beneficial to the rapid recovery of patients.

Description

Technical Field

[0001] The present invention relates to the field of medical device research, and in particular to a minimally invasive surgical tool and a method of using the same. Background Art

[0002] Minimally invasive surgery refers to surgery performed using modern medical instruments and related equipment such as laparoscopes and thoracoscopes. The emergence of minimally invasive surgery and its widespread application in the medical field have only occurred in the past decade. In 1987, French doctor Mouret accidentally completed the first LC and did not expect that it marked the birth of a new medical milestone. The formation of the concept of minimally invasive surgery is an advancement of the entire medical means and model. It is a precise, accurate and micro surgical method driven by the "holistic" treatment concept. Minimally invasive surgery pays more attention to the improvement and rehabilitation of patients' psychology, society, physiology (pain), mental outlook, and quality of life, and is considerate of patients to the greatest extent and relieves their pain. Minimally invasive surgery requires a small area of ​​trauma. It only needs to use the patient's physiological aperture, such as the navel, anus, oral cavity, nasal cavity, urethra, etc., or open 1 to 3 small holes of about 0.5-1 cm near the affected area of ​​the patient. The patient has a small wound, little pain, and little bleeding. The entire process of examination, treatment, and rehabilitation can be completed in just a few days after surgery. Therefore, it can reduce the damage of traditional surgery to the human body and greatly reduce the inconvenience and pain caused by the disease to the patient. Minimally invasive surgery has the advantages of less trauma, less pain, quick recovery and low chance of infection.

[0003] Current minimally invasive surgeries usually use multiple minimally invasive surgical tools for surgical operations during the operation. This is because each existing minimally invasive surgical tool has only a single function. Additional holes need to be opened for lighting and flushing, and the angles of operations such as cutting, suturing, puncture, and ligation cannot be adjusted. It is often impossible to complete the surgical operations that the physician wants to perform, resulting in multiple replacements of minimally invasive scalpels and multiple cuts during the operation. As a result, there are delays in time and risks of infection during the operation, which can cause unnecessary damage to the patient's wound and even excessive blood loss, thereby affecting the patient's recovery and even life safety. Summary of the invention

[0004] The present invention aims to provide a minimally invasive surgical tool with a simple and practical design structure, easy operation, and the ability to adjust the degree of opening and closing of the minimally invasive surgical tool and the angle and position of the cutting head. It has multiple functional uses, requires a small surgical incision and working area, reduces the number of surgical openings, reduces patient pain, and is conducive to rapid recovery of patients.

[0005] To achieve the above-mentioned purpose, the present invention provides a minimally invasive surgical tool, comprising a forearm, a control tube, a controller, and a control guide wire;

[0006] The regulating guide wire passes through the two ends of the regulating tube, and the two ends of the regulating guide wire are respectively connected to the forearm and the regulator; the forearm is detachably rotatably connected to the outer side of the front tube wall of the regulating tube, and a lock is provided at the connection between the forearm and the regulating tube, and the two ends of the regulating tube are connected; the regulating tube is a telescopic tube structure;

[0007] The forearm includes a multifunctional surgical instrument, a connecting arm, and a regulating arm;

[0008] The front and rear ends of the connecting arm are respectively connected to a multifunctional surgical instrument and a regulating arm; an angle ω1 is formed between the multifunctional surgical instrument and the connecting arm, and an angle ω2 is formed between the regulating arm and the connecting arm.

[0009] Preferably, an inner tube is provided on the inner side of the wall of the regulating tube, and the regulating guide wire passes through the two ends of the regulating tube along the lumen of the inner tube; the regulating guide wire includes a multifunctional surgical instrument regulating guide wire and a regulating arm regulating guide wire, and the multifunctional surgical instrument regulating guide wire passes through the two ends of the regulating tube along the lumen of the inner tube, and the two ends of the multifunctional surgical instrument regulating guide wire are respectively connected to the multifunctional surgical instrument and the regulator; the regulating arm regulating guide wire passes through the front side wall of the regulating tube and is connected to the regulating arm, and the tail end of the regulating arm regulating guide wire is connected to the regulator.

[0010] Furthermore, the multifunctional surgical instrument regulating guide wires and the regulating arm regulating guide wires are each provided with two, the tail ends of the two regulating arm regulating guide wires are connected to the same regulator, and the tail ends of the two multifunctional surgical instrument regulating guide wires are each connected to a regulator.

[0011] Furthermore, the multifunctional surgical instrument has two control guide wires and the control arm has two control guide wires, and the number of the controllers corresponds to the number of the multifunctional surgical instrument control guide wires and the control arm control guide wires.

[0012] Preferably, a slitting head is provided at the front end of the multifunctional surgical instrument, and the cross-section of the slitting head is triangular.

[0013] Preferably, the multifunctional surgical instrument, the connecting arm and the regulating arm are made of elastic material.

[0014] Preferably, the regulator is a regulating ring, and the inner diameter of the ring hole of the regulating ring is adapted to the diameter of a human finger.

[0015] Preferably, the regulator is an adjusting gear set, and the adjusting gear set is arranged on the tube wall of the regulating tube, and the regulating guide wire, the regulating tube and the adjusting gear set form a gear set adjusting mechanism.

[0016] Preferably, there are two forearms, and the two forearms are symmetrically arranged on the outside of the front tube wall of the regulating tube.

[0017] Preferably, the regulating tube is a gooseneck structure.

[0018] Furthermore, initially there are multiple models of minimally invasive surgical tools, and the forearms of different models of minimally invasive surgical tools have different values ​​of ω1 and ω2, different lengths, widths, thicknesses, and shapes of the connecting arms, different cutting heads of the multifunctional surgical instruments, and different thicknesses and lengths of the regulating tubes; the physician selects the appropriate model of minimally invasive surgical tools according to the specific characteristics of the patient, and can also replace the forearm according to the physician's needs, open the buckle at the connection between the forearm and the regulating tube, remove the forearm, and then install the forearm of the new model; the front end of the regulating guide wire of the multifunctional surgical instrument is connected to the multifunctional surgical instrument, the rear end of the regulating guide wire of the multifunctional surgical instrument is connected to the regulator, the front end of the regulating guide wire of the regulating arm is connected to the regulating arm, and the rear end of the regulating guide wire of the regulating arm is connected to the regulator; the regulating device drives the regulating device to control the forearm. The arm control guide wire makes the control arm rotate around the detachable rotating connection between the forearm and the outer side of the front tube wall of the control tube to adjust the opening degree of the connecting arm; the controller drives the multifunctional surgical instrument control guide wire to make the connecting arm produce a certain bending deformation, thereby adjusting the opening and closing degree of the multifunctional surgical instrument; suturing, ligation, grasping, squeezing, massage, dredging and other surgical operations are performed through the front end plane of the suturing head of the multifunctional surgical instrument; cutting, shaving, stabbing and other surgical operations are performed through the blade of the suturing head of the multifunctional surgical instrument; the length and curvature of the control tube are adjusted through the controller or directly manually; the two ends of the control tube are connected, and the doctor configures a variety of surgical auxiliary tools through the pipeline of the control tube to add light source to the surgical site, and perform surgery-related operations such as extracting and injecting gas and liquid.

[0019] The present invention has the following beneficial effects:

[0020] 1. The present invention can adjust the opening and closing degree of minimally invasive surgical tools and the angle and position of the cutting head;

[0021] 2. The present invention has multiple functional uses;

[0022] 3. The present invention has a simple design structure and is easy and practical to operate;

[0023] 4. The present invention requires a small surgical incision and working area, which reduces the number of surgical openings, reduces the pain of the patient, and is conducive to the patient's rapid recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the longitudinal cross-section structure of the first embodiment;

[0026] Figure 2 It is a schematic diagram of the longitudinal cross-section structure of the second embodiment;

[0027] Figure 3 It is a schematic diagram of the longitudinal cross-sectional structure when cutting is performed using the multifunctional surgical instrument in Example 1;

[0028] Figure 4 This is a schematic diagram of the longitudinal cross-sectional structure of Example 1 when using the multifunctional surgical instrument to perform surgical operations such as suturing, ligation, grasping, squeezing, massaging, and dredging;

[0029] Figure 5 for Figure 1 AA cross-sectional structure diagram of the central control tube;

[0030] Figure 6 A schematic diagram of the forearm structure of an embodiment;

[0031] Figure 7 for Figure 6 The structural diagram of the B-direction view;

[0032] Figure 8 It is a schematic diagram of the longitudinal cross-section structure of the third embodiment;

[0033] In the figure: 1-forearm, 101-multifunctional surgical instrument, 102-connecting arm, 103-regulating arm, 2-regulating guide wire of multifunctional surgical instrument, 3-regulating guide wire of regulating arm, 4-regulating tube, 5-inner tube, 6-regulating ring, 7-regulating gear set. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the embodiments of the present invention, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the invention product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" 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 direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example:

[0041] A minimally invasive surgical tool, comprising a forearm 1, a regulating tube 4, a regulator, and a regulating guide wire;

[0042] The regulating guide wire passes through the two ends of the regulating tube 4, and the two ends of the regulating guide wire are respectively connected to the forearm 1 and the regulator; the forearm 1 is detachably rotatably connected to the outer side of the front tube wall of the regulating tube 4, and a lock is provided at the connection between the forearm 1 and the regulating tube 4, and the two ends of the regulating tube 4 are connected; the regulating tube 4 is a telescopic tube structure;

[0043] The forearm 1 includes a multifunctional surgical instrument 101, a connecting arm 102, and a regulating arm 103;

[0044] The front and rear ends of the connecting arm 102 are respectively connected to the multifunctional surgical instrument 101 and the regulating arm 103 ; an angle ω1 is formed between the multifunctional surgical instrument 101 and the connecting arm 102 , and an angle ω2 is formed between the regulating arm 103 and the connecting arm 102 .

[0045] Preferably, an inner tube 5 is provided on the inner side of the wall of the regulating tube 4, and the regulating guide wire passes through the two ends of the regulating tube 4 along the lumen of the inner tube 5; the regulating guide wire includes a multifunctional surgical instrument regulating guide wire 2 and a regulating arm regulating guide wire 3, the multifunctional surgical instrument regulating guide wire 2 passes through the two ends of the regulating tube 4 along the lumen of the inner tube 5, and the two ends of the multifunctional surgical instrument regulating guide wire 2 are respectively connected to the multifunctional surgical instrument 101 and the regulator; the regulating arm regulating guide wire 3 passes through the front side wall of the regulating tube 4 and is connected to the regulating arm 103, and the tail end of the regulating arm regulating guide wire 3 is connected to the regulator.

[0046] Preferably, a slitting head is provided at the front end of the multifunctional surgical instrument 101, and the cross-section of the slitting head is triangular.

[0047] Preferably, the multifunctional surgical instrument 101, the connecting arm 102 and the regulating arm 103 are made of elastic material.

[0048] Preferably, there are two forearms 1 , and the two forearms 1 are symmetrically arranged on the outside of the front tube wall of the regulating tube 4 .

[0049] Preferably, the regulating tube 4 is a gooseneck structure.

[0050] Initially, there are various types of minimally invasive surgical tools, and different types of minimally invasive surgical tools have different values ​​of ω1 and ω2 of the forearm 1, different lengths, widths, thicknesses, and shapes of the connecting arms 102, different cutting heads of the multifunctional surgical instruments 101, and different thicknesses and lengths of the regulating tubes 4; the physician selects the appropriate type of minimally invasive surgical tools according to the specific characteristics of the patient, and can also replace the forearm 1 according to the physician's needs, open the buckle at the connection between the forearm 1 and the regulating tube 4, remove the forearm 1, and then install the forearm 1 of the new type; the front end of the multifunctional surgical instrument regulating guide wire 2 is connected to the multifunctional surgical instrument 101, and the rear end of the multifunctional surgical instrument regulating guide wire 2 is connected to the regulator, the front end of the regulating arm regulating guide wire 3 is connected to the regulating arm 103, and the rear end of the regulating arm regulating guide wire 3 is connected to the regulator; the regulating arm is driven by the regulator to regulate The guide wire 3 causes the regulating arm 103 to rotate around the detachable rotatable connection between the forearm 1 and the outer side of the front tube wall of the regulating tube 4 to adjust the opening degree of the connecting arm 102; the multifunctional surgical instrument regulating guide wire 2 is driven by the regulator to cause a certain bending deformation of the connecting arm 102, thereby adjusting the opening and closing degree of the multifunctional surgical instrument 101; suturing, ligation, grasping, squeezing, massage, dredging and other surgical operations are performed through the front end plane of the suturing head of the multifunctional surgical instrument 101; cutting, shaving, stabbing and other surgical operations are performed through the blade of the suturing head of the multifunctional surgical instrument 101; the length and curvature of the regulating tube 4 are adjusted by the regulator or directly manually; the two ends of the regulating tube 4 are connected, and the doctor configures a variety of surgical auxiliary tools through the pipeline of the regulating tube 4 to add light sources to the surgical site, and perform surgical related operations such as pumping and injecting gas and liquid.

[0051] Embodiment 1:

[0052] like Figure 1 As shown, there are two control guide wires 2 and two control arm control guide wires 3 for the multifunctional surgical instrument, the tail ends of the two control arm control guide wires 3 are connected to the same controller, and the tail ends of the two control guide wires 2 for the multifunctional surgical instrument are respectively connected to a controller; the controller is a control ring 6, the inner diameter of the ring hole of the control ring 6 is adapted to the diameter of the human finger, and only one finger is needed to control the two control arm control guide wires 3; the doctor inserts his finger into the control ring 6, pulls the control guide wire 2 and the control arm control guide wire 3 for the multifunctional surgical instrument to adjust the opening and closing angles of the adjustment arm 103 and the cutting head of the multifunctional surgical instrument 101; the cross section of the cutting head is a triangle, Figure 6 As shown; the front end plane of the multifunctional surgical instrument with a triangular cross-section of the suturing head can be used to perform surgical operations such as suturing, ligating, grasping, squeezing, massaging, and unblocking tissues, such as Figure 3 As shown; the cutting head blade with a triangular cross section of the multifunctional surgical instrument can be used to perform surgical operations such as cutting, slicing, and stabbing on tissues, such as Figure 4 As shown; the two forearms 1 can be operated independently, making the operation more flexible during the operation; the length and curvature of the control tube 4 can be adjusted by the control ring 6 or directly manually; the two ends of the control tube 4 are connected, and the doctor can configure a variety of surgical auxiliary tools through the pipeline of the control tube 4 to add light source to the surgical site, extract and inject gas, liquid and other surgical related operations.

[0053] Embodiment 2:

[0054] like Figure 2 As shown, the multifunctional surgical instrument regulating guide wire 2 and the regulating arm regulating guide wire 3 each have two, and the number of the regulators corresponds to the number of the multifunctional surgical instrument regulating guide wire 2 and the regulating arm regulating guide wire 3; the regulator is a regulating ring 6, and the inner diameter of the ring hole of the regulating ring 6 is adapted to the diameter of a human finger; the doctor inserts the finger into the regulating ring 6, and pulls the multifunctional surgical instrument regulating guide wire 2 and the regulating arm regulating guide wire 3 to adjust the opening and closing angles of the adjusting arm 103 and the cutting head of the multifunctional surgical instrument 101; the cross section of the cutting head is a triangle, Figure 6 As shown; the front end plane of the multifunctional surgical instrument with a triangular cross-section of the suturing head can be used to perform surgical operations such as suturing, ligating, grasping, squeezing, massaging, and dredging on tissues; the blade of the multifunctional surgical instrument with a triangular cross-section of the suturing head can be used to perform surgical operations such as cutting, shaving, and pricking on tissues; the two forearms 1 can be operated independently, making it more flexible to operate during the operation; the length and curvature of the regulating tube 4 can be adjusted by the regulating ring 6 or directly manually; the two ends of the regulating tube 4 are connected, and the doctor can configure a variety of surgical auxiliary tools through the pipeline of the regulating tube 4 to add light sources to the surgical site, and perform surgical related operations such as extracting and injecting gas and liquid.

[0055] Embodiment three:

[0056] like Figure 8 As shown, the regulator is an adjusting gear set 7, which is arranged on the wall of the regulating tube 4. The regulating guide wire and the adjusting gear set 7 form a gear set regulating mechanism, and the multifunctional surgical instrument regulating guide wire 2 and the regulating arm regulating guide wire 3 are driven by the rolling of the adjusting gear set 7 to adjust the opening and closing angles of the adjusting arm 103 and the cutting head of the multifunctional surgical instrument 101; the cross section of the cutting head is a triangle, Figure 6 As shown; the front end plane of the multifunctional surgical instrument with a triangular cross-section of the suturing head can be used to perform surgical operations such as suturing, ligating, grasping, squeezing, massaging, and dredging on tissues; the blade of the multifunctional surgical instrument with a triangular cross-section of the suturing head can be used to perform surgical operations such as cutting, shaving, and pricking on tissues; the two forearms 1 can be operated independently, making it more flexible to operate during the operation; the length and curvature of the regulating tube 4 can be adjusted by adjusting the gear set 7 or directly manually; the two ends of the regulating tube 4 are connected, and the doctor can configure a variety of surgical auxiliary tools through the pipeline of the regulating tube 4 to add light sources to the surgical site, and perform surgical related operations such as pumping and injecting gas and liquid.

[0057] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A minimally invasive surgical tool, characterized in that: It comprises a forearm (1), a regulating tube (4), a regulator, and a regulating guide wire; The regulating guide wire passes through the two ends of the regulating tube (4), and the two ends of the regulating guide wire are respectively connected to the forearm (1) and the regulator; the forearm (1) is detachably rotatably connected to the outer side of the front tube wall of the regulating tube (4); a lock is provided at the connection between the forearm (1) and the regulating tube (4); the two ends of the regulating tube (4) are connected; the regulating tube (4) is a telescopic tube structure; There are two forearms (1), and the two forearms (1) are symmetrically arranged on the outside of the front wall of the regulating tube (4). The forearm (1) comprises a multifunctional surgical instrument (101), a connecting arm (102), and a regulating arm (103); The front and rear ends of the connecting arm (102) are respectively connected to the multifunctional surgical instrument (101) and the regulating arm (103); an angle ω1 is formed between the multifunctional surgical instrument (101) and the connecting arm (102), and an angle ω2 is formed between the regulating arm (103) and the connecting arm (102); An inner tube (5) is provided on the inner side of the tube wall of the control tube (4), and the control guide wire passes through the two ends of the control tube (4) along the tube cavity of the inner tube (5); the control guide wire comprises a multifunctional surgical instrument control guide wire (2) and a control arm control guide wire (3); the multifunctional surgical instrument control guide wire (2) passes through the two ends of the control tube (4) along the tube cavity of the inner tube (5), and the two ends of the multifunctional surgical instrument control guide wire (2) are respectively connected to the multifunctional surgical instrument (101) and the controller; the control arm control guide wire (3) passes through the front side wall of the control tube (4) and is connected to the control arm (103), and the tail end of the control arm control guide wire (3) is connected to the controller; The multifunctional surgical instrument regulating guide wires (2) and regulating arm regulating guide wires (3) are each provided with two, the tail ends of the two regulating arm regulating guide wires (3) are connected to the same regulator, and the tail ends of the two multifunctional surgical instrument regulating guide wires are each connected to a regulator; a slitting head is provided at the front end of the multifunctional surgical instrument (101), and the cross-section of the slitting head is triangular; the multifunctional surgical instrument (101), the connecting arm (102), and the regulating arm (103) are made of elastic material.

2. A minimally invasive surgical tool according to claim 1, characterized in that: The regulator is a regulating ring (6), and the inner diameter of the ring hole of the regulating ring (6) is adapted to the diameter of a human finger.

3. A minimally invasive surgical tool according to claim 1, characterized in that: The regulator is an adjusting gear set (7), and the adjusting gear set (7) is arranged on the tube wall of the regulating tube (4). The regulating guide wire, the regulating tube (4) and the adjusting gear set (7) form a gear set adjusting mechanism.

4. A minimally invasive surgical tool according to claim 1, characterized in that: The regulating tube (4) is a gooseneck tube structure.

Images