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CN-224220220-U - Elbow ceramic ball bipolar jaw assembly and tissue closer

CN224220220UCN 224220220 UCN224220220 UCN 224220220UCN-224220220-U

Abstract

The utility model discloses an elbow ceramic ball bipolar jaw assembly and a tissue closer, wherein the elbow ceramic ball bipolar jaw assembly comprises a lower jaw assembly (1), an upper jaw assembly (2), a sliding pin (3), a fixing pin (4), a sleeve (5), wherein the lower jaw assembly (1) is a fixed jaw, the upper jaw assembly (2) is a movable jaw, the opening and the closing of the upper jaw assembly (2) are controlled by the sliding pin (3), the sliding pin (3) is arranged in a groove (201), the included angle between the axis of the groove (201) and the horizontal plane is divided into 2 parts, and the included angle between the part close to the tip of the jaw is larger than the included angle between the part far away from the tip of the jaw. According to the utility model, the ceramic balls are fixedly arranged on the jaw sealing plate made of metal, so that the reasonable gap of the jaw sealing plate can be kept, and the jaw sealing plate is simple in processing technology and reliable in structure. In addition, the utility model can realize the rapid opening of the jaw through the sectional sliding pin groove included angle design, and simultaneously, the jaw transmits smaller axial force to the trigger when the jaw is closed.

Inventors

  • HUANG WENXING
  • HAN GUANG
  • LU WEN

Assignees

  • 赛诺微医疗科技(北京)有限公司

Dates

Publication Date
20260512
Application Date
20241219

Claims (8)

  1. 1. A bent ceramic ball bipolar jaw assembly is characterized by comprising a lower jaw assembly (1), an upper jaw assembly (2), a sliding pin (3), a fixing pin (4), a sleeve (5), the lower jaw assembly (1) serving as a fixed jaw, the upper jaw assembly (2) serving as a movable jaw, the lower jaw assembly (1) and the upper jaw assembly (2) being hinged together through the fixing pin (4), a cutting bit being arranged in the sleeve (5), a groove for sliding the cutting bit being arranged in the sleeve (5) after the lower jaw assembly (1) and the upper jaw assembly (2) are closed, the upper jaw assembly (2) and the lower jaw assembly (1) are in a bent and tip-slim shape with radians, the upper jaw assembly (2) and the lower jaw assembly (1) are respectively provided with a metal jaw sealing plate (102), the lower jaw assembly (1) and/or the lower jaw assembly comprises a jaw metal supporting seat (105), a plurality of metal jaw sealing plates (102) are arranged on the jaw metal supporting seat (105), grooves are arranged in part of the metal jaw sealing plates (102), a part of the ceramic balls (101) are fixed on the grooves of the jaw sealing plates (102) through the other jaw sealing plates (102), the sliding pin (3) is controlled to be closed, the sliding pin (3) is positioned in the groove (201), the included angle between the axis of the groove (201) and the horizontal plane is divided into 2 parts, and the included angle of the part close to the tip of the jaw is larger than that of the part far away from the tip of the jaw.
  2. 2. The elbow ceramic ball bipolar jaw assembly according to claim 1, wherein the ceramic ball (101) is secured in a groove of a jaw sealing plate (102) by a sealant.
  3. 3. The elbow ceramic ball bipolar jaw assembly according to claim 1, wherein an insulating jaw insulating gasket (103) is arranged between the jaw metal supporting seat (105) and the jaw sealing plate (102), and the jaw sealing plate (102) and the jaw insulating gasket (103) are fixed on the jaw metal supporting seat (105) through a jaw rubber coating (104).
  4. 4. The bent ceramic ball bipolar jaw assembly according to claim 1, wherein the angle between the axis of the groove (201) and the horizontal plane is 18-25 ° in the portion near the jaw tip and 32-40 ° in the portion distant from the jaw tip.
  5. 5. A tissue closer having an elbow ceramic ball bipolar jaw assembly according to any one of claims 1-4 and further having an operating handle, said elbow ceramic ball bipolar jaw assembly and operating handle being located at each end of a cannula (5).
  6. 6. The tissue closer of claim 5 wherein the operating handle has a closure trigger (15) and a closure trigger tab (14), the closure trigger (15) controlling the closure trigger tab (14), the closure trigger tab (14) effecting closure of the upper jaw assembly (2) and the lower jaw assembly (1) by controlling movement of the slide pin (3) in the recess (201).
  7. 7. The tissue closer of claim 5 wherein the operating handle further has an energy activation button (16) for controlling the energizing of the metallic jaw seal plates (102) in the upper jaw assembly (2) and the lower jaw assembly (1).
  8. 8. The tissue closure device according to claim 5, wherein the operating handle further comprises a push trigger (17), the push trigger (17) is connected with the push link (9) through a fixed pin (8), the swing of the push trigger is converted into the linear motion of the push link, the push link (9) drives the sliding ring (7) to linearly move in the sleeve (5), and the sliding ring (7) drives the cutting bit to linearly move in the groove of the jaw assembly.

Description

Elbow ceramic ball bipolar jaw assembly and tissue closer Technical Field The utility model belongs to the technical field of medical instrument industry, and particularly relates to an elbow ceramic ball bipolar jaw assembly and a tissue closer. Background The vascular closer is used for grabbing and clamping vascular tissues by means of mechanical action between the jaws, and the clamped tissues are closed by means of the mechanical clamping action and electric energy. So-called "open forceps" are commonly used for open surgery, while "endoscopic forceps" or "laparoscopic forceps" are used for minimally invasive endoscopic surgery. The vascular occluder includes an electrosurgical sealing plate that applies electrosurgical energy to the clamped tissue, and the surgeon can seal the vascular tissue by controlling the intensity of the electrosurgical energy applied to the tissue by the sealing plate. Vascular sealing is a process of liquefying collagen, elastin material in tissue to allow them to reform into a fusion mass while significantly reducing the demarcation between opposing tissue structures. Cauterization involves the use of heat to destroy tissue, and coagulation is the process of drying the tissue. Since vascular tissue sealing procedures are not just simple cauterization, coagulation of tissue, two major mechanical parameters, namely pressure applied to the tissue and gap distance between the electrodes (i.e., distance between opposing jaw members when closed about the tissue) must be precisely controlled in order to achieve proper sealing in vascular tissue. A number of electrosurgical instruments have been proposed in the past for use in a variety of open and endoscopic procedures. In order to maintain a proper gap between the upper and lower jaws, for example, chinese patent application CN117179886a discloses providing a ceramic coating between the two jaws, typically by spraying/brushing a layer of ceramic material onto a metal substrate, and then sintering at high temperature to form the desired jaw assembly. Another way is to use high temperature resistant plastic to injection mold the boss. The first mode has complex process, high manufacturing difficulty and poor product consistency. In the second mode, the plastic is used as an insulating material, so that the product reliability is poor. It would be advantageous to develop a jaw assembly and tissue closer that maintain a reasonable gap of the jaw seal plates. Disclosure of utility model For the above reasons, the present utility model is directed to solving the above problems and is directed to an elbow ceramic ball bipolar jaw assembly and tissue closer. Specifically, in order to achieve the purpose of the present utility model, the present utility model adopts the following technical scheme: The utility model relates to an elbow ceramic ball bipolar jaw assembly, which comprises a lower jaw assembly (1), an upper jaw assembly (2), a sliding pin (3), a fixed pin (4), a sleeve (5), a lower jaw assembly (1) which is a fixed jaw, an upper jaw assembly (2) which is a movable jaw, wherein the lower jaw assembly (1) and the upper jaw assembly (2) are hinged together through the fixed pin (4), a cutting tool bit is arranged in the sleeve (5), a groove for sliding the cutting tool bit is formed in the lower jaw assembly (1) and the upper jaw assembly (2) after the lower jaw assembly (1) are closed, the upper jaw assembly (2) and the lower jaw assembly (1) are in an elbow with radian and a fine tip shape, the upper jaw assembly (2) and the lower jaw assembly (1) are respectively provided with a metal jaw sealing plate (102), the lower jaw assembly (1) and/or the lower jaw assembly comprises a jaw metal supporting seat (105), a plurality of metal jaw sealing plates (102) are arranged on the jaw metal supporting seat (105), grooves are arranged in part of the metal jaw sealing plates (102), a plurality of ceramic balls (101) are fixed in the grooves of the jaw sealing plates (102), part of the grooves are arranged in the sealing plates (102), the grooves of the sealing plates (102) are arranged, the other ceramic balls (101) are arranged in the grooves and the grooves (3) and the sliding pin (3) is arranged on the surfaces of the sealing plates (3) which are controlled to slide out, the included angle between the axis of the groove (201) and the horizontal plane is divided into 2 parts, and the included angle between the part close to the tip of the jaw is larger than the included angle between the part far away from the tip of the jaw. According to the utility model, the ceramic balls are fixedly arranged on the jaw sealing plate made of metal, so that the reasonable gap of the jaw sealing plate can be kept, and the jaw sealing plate is simple in processing technology and reliable in structure. In addition, the utility model can realize the rapid opening of the jaw through the sectional sliding pin groove included angle design, and simultaneous