Miniature thyroid grasping forceps for endoscopic thyroid surgery

Abstract

The utility model relates to miniature thyroid grasping forceps for endoscopic thyroid surgery, which comprise a needle-shaped outer sheath, a fixed handle, a movable handle, a rod sleeve, a pull rod, a grasping claw, a rod sleeve sealing ring and a pull rod sealing ring, the fixed handle and the movable handle are hinged through a bolt, one end of the rod sleeve is arranged at the top of the fixed handle, and the other end of the rod sleeve is provided with the grasping claw. The pull rod is slidably arranged in the rod sleeve, one end of the pull rod is hinged to the clamping claw, the other end of the pull rod is connected with the top of the movable handle, the pull rod is sleeved with the pull rod sealing ring, the rod sleeve is sleeved with the rod sleeve sealing ring, and the rod sleeve is arranged in the needle-shaped sheath; the cervical traction device is arranged from the epidermis of a neck operation area, a neck approach is added, the problem that in the operation process, the thyroid traction and exposure are difficult is solved, two conventional operation channels are not occupied, an auxiliary channel on the basis of a conventional channel can be achieved, the operation auxiliary effect of a third hand is achieved, large neck trauma and scar formation are avoided, and the cervical traction device is simple in structure and convenient and fast to use.

Description

Technical Field

[0001] The utility model relates to the technical field of minimally invasive surgery, in particular to a miniature thyroid grasping forceps used for laparoscopic thyroid surgery. Background Art

[0002] Laparoscopic thyroid surgery is currently a popular surgical method due to its cosmetic and minimally invasive advantages. However, since the current operating channel mainly inserts instruments through two extended Trocar puncture devices, the number of instruments that can assist in surgical operations is greatly limited, and satisfactory exposure of the surgical area is often unable to be achieved, thereby increasing the difficulty of the operation and affecting the efficiency of the operation.

[0003] Therefore, there is an urgent need for a thyroid grasping forceps in the field of laparoscopic thyroid surgery to assist in thyroid exposure and surgical field dissection, and to solve the following problems:

[0004] Solve the problem of difficulty in thyroid traction and exposure during laparoscopic thyroid surgery;

[0005] Directly insert the needle through the epidermis of the surgical area of ​​the neck to solve the problem of too long a channel path;

[0006] The addition of a minimally invasive neck approach does not occupy the conventional two trocar operating channels, and can realize an auxiliary channel based on the conventional channel, realizing the surgical assistance role of a "third hand";

[0007] Add minimally invasive approach to the neck, eliminating the need for neck surgery and avoiding major neck trauma and scar formation;

[0008] The device has a simple structure and is easy to use, and can avoid the problems of large surgical trauma and prolonged operation time caused by complicated operations. Utility Model Content

[0009] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide a miniature thyroid grasping forceps for laparoscopic thyroid surgery.

[0010] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a miniature thyroid grasping forceps for laparoscopic thyroid surgery, including a needle-shaped outer sheath, a fixed handle, a movable handle, a rod sleeve, a pull rod, a clamp, a rod sleeve sealing ring, and a pull rod sealing ring. The fixed handle and the movable handle are hinged by bolts, one end of the rod sleeve is arranged on the top of the fixed handle, and the other end is provided with a clamp. The pull rod is slidably arranged in the rod sleeve, one end of which is hinged to the clamp, and the other end is connected to the top of the movable handle. The pull rod sealing ring is sleeved on the outside of the pull rod, the rod sleeve sealing ring is sleeved on the outside of the rod sleeve, and the rod sleeve is arranged in the needle-shaped outer sheath.

[0011] Furthermore, the clamping includes an upper claw, a lower claw, and two connecting plates. The upper claw and the lower claw are arranged alternately and are hinged to the end of the rod sleeve through a pin shaft. One end of the two connecting plates is hinged to the end of the upper claw and the lower claw respectively, and the other end of the two connecting plates is hinged to the pull rod.

[0012] Furthermore, the needle-shaped outer sheath is a stainless steel needle-shaped sheath tube with a needle tip shape at the head end, which is hollow, has a tube diameter of 2 to 4 mm, and a length of 4 to 6 cm, and is used to puncture the subcutaneous tissue to deliver the clamp to the thyroid area of ​​the surgical field.

[0013] Furthermore, the diameter of the rod sleeve is smaller than the diameter of the needle-shaped outer sheath head, and the length is 1.5 to 2 times the length of the needle-shaped outer sheath. The diameter of the pull rod is smaller than the diameter of the rod sleeve, and the length is 1.5 to 2 times the length of the rod sleeve.

[0014] Furthermore, the needle-shaped outer sheath, fixed handle, movable handle, rod sleeve, pull rod, and clamp are made of 304 stainless steel or martensitic stainless steel.

[0015] Furthermore, an elastic reset structure is provided between the fixed handle and the movable handle.

[0016] Furthermore, the elastic reset structure includes a V-shaped spring piece, and both ends of the spring piece are fixedly connected to the fixed handle and the movable handle respectively.

[0017] Furthermore, the fixed handle and the movable handle are provided with a limiting anti-slip structure.

[0018] The utility model does not require neck surgery and is directly inserted through the epidermis of the surgical area of ​​the neck, thereby increasing the minimally invasive approach to the neck, solving the problems of thyroid traction and exposure difficulties during laparoscopic thyroid surgery, and solving the problem of the channel path being too long. It does not occupy the two conventional operating channels, and can realize an auxiliary channel based on the conventional channel, realizing the surgical auxiliary role of the "third hand", avoiding major neck trauma and scar formation, and has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the utility model.

[0020] Legend:

[0021] 1. Needle-shaped outer sheath; 2. Fixed handle; 3. Movable handle; 4. Rod sleeve; 5. Pull rod; 6. Clamping; 61. Upper claw; 62. Lower claw; 63. Connecting piece; 64. Pin; 7. Rod sleeve sealing ring; 8. Rod sealing ring; 9. Elastic reset structure; 91. Shrapnel; 10. Position limiting and anti-slip structure. DETAILED DESCRIPTION

[0022] 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 combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0023] Example 1

[0024] like Figure 1 As shown, the utility model provides a miniature thyroid grasping forceps for laparoscopic thyroid surgery, including a needle-shaped outer sheath 1, a fixed handle 2, a movable handle 3, a rod sleeve 4, a pull rod 5, a clamp 6, a rod sleeve sealing ring 7, and a pull rod sealing ring 8. The fixed handle 2 and the movable handle 3 are hinged by bolts, one end of the rod sleeve 4 is set on the top of the fixed handle 2, and the other end is set with the clamp 6. The pull rod 5 is slidably set in the rod sleeve 4, one end of which is hinged to the clamp 6, and the other end is connected to the top of the movable handle 3. The pull rod sealing ring 8 is sleeved on the outside of the pull rod 5, the rod sleeve sealing ring 7 is sleeved on the outside of the rod sleeve 4, and the rod sleeve 4 is set in the needle-shaped outer sheath 1.

[0025] Among them, the fixed handle 2 and the movable handle 3 are the external gripping parts for the operator, which are convenient for the operator to hold and operate. The clamp 6 is used to grasp the thyroid gland and then pull it to expose it. The needle-shaped outer sheath 1 is used to puncture the subcutaneous tissue to deliver the clamp 6 to the thyroid area of ​​the surgical field. The rod sleeve 4 is a hollow metal tube, and the pull rod 5 is a metal rod. The rod sleeve 4 and the pull rod 5 cooperate to deliver the clamp 6 to the target position, and the pull rod 5 is used to transmit and control the operation of the clamp 6.

[0026] The clamping claw 6 includes an upper claw 61, a lower claw 62, and two connecting plates 63. The upper claw 61 and the lower claw 62 are arranged alternately and are hinged to the end of the rod sleeve 4 through a pin 64. One end of the two connecting plates 63 is hinged to the end of the upper claw 61 and the lower claw 62 respectively, and the other end of the two connecting plates 63 is hinged to the pull rod 5.

[0027] The needle-shaped outer sheath 1 is a stainless steel needle-shaped sheath tube with a needle tip shape at the head end. It is hollow, has a tube diameter of 2 to 4 mm, and a length of 4 to 6 cm. It is used to puncture the subcutaneous tissue and deliver the clamp to the thyroid area of ​​the surgical field.

[0028] The diameter of the rod sleeve 4 is smaller than the diameter of the head of the needle-shaped outer sheath 1, and its length is 1.5 to 2 times the length of the needle-shaped outer sheath 1. The diameter of the pull rod 5 is smaller than the diameter of the rod sleeve 4, and its length is 1.5 to 2 times the length of the rod sleeve 4.

[0029] The needle-shaped outer sheath 1, the fixed handle 2, the movable handle 3, the rod sleeve 4, the pull rod 5, and the clamping grip 6 are made of 304 stainless steel or martensitic stainless steel.

[0030] An elastic reset structure 9 is provided between the fixed handle 2 and the movable handle 3 .

[0031] The elastic reset structure 9 includes a V-shaped spring piece 91 , and two ends of the spring piece 91 are fixedly connected to the fixed handle 2 and the movable handle 3 respectively.

[0032] The fixed handle 2 and the movable handle 3 are provided with a position limiting and anti-slip structure 10 .

[0033] The position-limiting and anti-slip structures 10 on the fixed handle 2 and the movable handle 3 can be a ring or a stop bar at the same time, or can be a ring and a stop bar respectively provided on the fixed handle 2 and the movable handle 3 .

[0034] Example 2

[0035] As a preferred solution of Example 1, a through internal thread groove is provided on the top of the fixed handle 2, an external thread is provided at one end of the rod sleeve 4, and the rod sleeve 4 is threadedly connected to the fixed handle 2.

[0036] Example 3

[0037] As another preferred solution of Example 1, a groove is provided on the top of the fixed handle 2, and a plurality of screw holes are provided on both sides of the groove. One end of the rod sleeve 4 is arranged in the groove and is screwed and fixed to the screw holes on both sides of the groove through an N-shaped clamping ring.

[0038] Finally, it should be noted that the embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A miniature thyroid grasping forceps for laparoscopic thyroid surgery, comprising a needle-shaped outer sheath, a fixed handle, and a movable handle, characterized in that: It also includes a rod sleeve, a pull rod, a clamp, a rod sleeve sealing ring, and a pull rod sealing ring. The fixed handle and the movable handle are hinged by bolts. One end of the rod sleeve is set on the top of the fixed handle, and the other end is set with a clamp. The pull rod is slidably set in the rod sleeve, one end of which is hinged to the clamp, and the other end is connected to the top of the movable handle. The pull rod sealing ring is sleeved on the outside of the pull rod, the rod sleeve sealing ring is sleeved on the outside of the rod sleeve, and the rod sleeve is set in the needle-shaped outer sheath.

2. The miniature thyroid grasping forceps for laparoscopic thyroid surgery according to claim 1, characterized in that: The clamping claw includes an upper claw, a lower claw, and two connecting plates. The upper claw and the lower claw are arranged alternately and are hinged to the end of the rod sleeve through a pin shaft. One end of the two connecting plates is hinged to the end of the upper claw and the lower claw respectively, and the other end of the two connecting plates is hinged to the pull rod.

3. The miniature thyroid grasping forceps for laparoscopic thyroid surgery according to claim 1, characterized in that: The needle-shaped outer sheath is a stainless steel needle-shaped sheath tube with a needle tip shape at the head end. It is hollow, has a tube diameter of 2 to 4 mm, and a length of 4 to 6 cm. It is used to puncture the subcutaneous tissue and deliver the clamp to the thyroid area of ​​the surgical field.

4. The miniature thyroid grasping forceps for laparoscopic thyroid surgery according to claim 1, characterized in that: The diameter of the rod sleeve is smaller than the diameter of the needle sheath head, and its length is 1.5 to 2 times the length of the needle sheath. The diameter of the pull rod is smaller than the diameter of the rod sleeve, and its length is 1.5 to 2 times the length of the rod sleeve.

5. The miniature thyroid grasping forceps for laparoscopic thyroid surgery according to claim 1, characterized in that: The needle-shaped outer sheath, fixed handle, movable handle, rod sleeve, pull rod and clamp are made of 304 stainless steel or martensitic stainless steel.

6. The miniature thyroid grasping forceps for laparoscopic thyroid surgery according to any one of claims 1 to 5, characterized in that: An elastic reset structure is provided between the fixed handle and the movable handle.

7. The miniature thyroid grasping forceps for laparoscopic thyroid surgery according to claim 6, characterized in that: The elastic reset structure includes a V-shaped spring piece, and two ends of the spring piece are fixedly connected to the fixed handle and the movable handle respectively.

8. The miniature thyroid grasping forceps for laparoscopic thyroid surgery according to any one of claims 1 to 6, characterized in that: The fixed handle and the movable handle are provided with a limit anti-slip structure.

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