Noninvasive blood vessel blocking clamp capable of being bent freely

Abstract

The invention discloses a noninvasive blood vessel blocking clamp capable of being bent freely. The noninvasive blood vessel blocking clamp comprises a handle and a jaw controlled by the handle to act; the noninvasive blood vessel blocking clamp is structurally characterized in that the handle comprises a fixed handle body and a movable handle body, the jaw comprises a movable clamp body and a fixed clamp body, metal tubes are connected between the fixed handle body and the fixed clamp body, and flexible transmission parts are connected between the movable handle body and the movable clamp body. A guide casing pipe is fixedly connected with the fixed handle body, and one end of the flexible transmission part extends into the guide casing pipe and fixedly connected with a union joint which is coupled to the end of the movable handle body; the other end of the flexible transmission part is fixedly connected with a guiding union joint located in the fixed clamp body, the guiding union joint is further connected with the movable clamp body through a transmission connecting piece, and the two ends of the transmission connecting piece are connected with the guiding union joint and a movable clamp body shaft respectively. The noninvasive blood vessel blocking clamp can be changed into various shapes adapted to the surgery environments according to actual requirements and can further achieve smoothness of control moment transmission, linear continuity of clamping motion of the jaw is guaranteed, and difficulty of surgery conducted by a surgeon is lowered.

Description

technical field [0001] The invention relates to a blocking forceps, in particular to a non-invasive freely bendable blood vessel blocking forceps. Background technique [0002] Blocking clamp is a commonly used medical device in surgery. It can block the blood flow path in blood vessels during surgery to avoid excessive blood loss in patients. It not only improves the blood circulation of patients during surgery, but also improves the success rate of surgery. . [0003] However, most of the current blocking forceps have specific structural shapes according to different operating environments, including arterial, venous, thoracic and pulmonary blocking forceps, and the shapes of each blocking forceps are different, making it difficult to use universally ; This makes the number of surgical instruments not only large and the types of instruments are also very complex, each operation will be rationally configured according to the operation of surgical instruments, which not onl...

AI Technical Summary

Problems solved by technology

[0003] However, most of the current blocking forceps have specific structural shapes according to different operating environments, including arterial, venous, thoracic and pulmonary blocking forceps, and the shapes of each blocking forceps are different, making it difficult to use universally ; This makes the number of surgical instruments not only large and the types of instruments are also very complex, each operation must be rationally configured according to the surgical requirements, which not only increases the difficulty of the operation, but also is not conducive to reducing medical costs

[0004] The current blocking forceps not only have the above-mentioned shortcomings that are difficult to use universally, but also have a series of defects caused by the rigid connection of the structure and the rigid transmission of the control moment; for example, a minimally invasive ascending aortic blocking forceps disclosed in Chinese patent ZL201320684993. And the similar ZL200920218143.4 discloses a kind of thoracoscopic side angle vascular blocking forceps, they all adopt the integrated hinged structure of the handle and the jaw, and then design the handle or the jaw into a specific shape according to the actual needs. The torque from the handle directly acts on the state control of the jaws. Not only can it not buffer the control torque, but it is also difficult to actively change the shape of the blocking forceps to meet the special needs of the operation. have high operating requirements

[0005] In order to improve the operating efficiency of the blocking forceps, some blocking forceps with more advanced structures have also been designed, such as a detachable temporary blocking forceps for minimally invasive surgery disclosed in Chinese patent ZL201320684993. transfer, to control the design idea of ​​opening and closing the jaws, but this technical solution is not a blocking forceps directly used in medical operations, it needs to cooperate with the additionally designed "two clamping jaws 21", and due to the use of Rigid rods are used for structural connection and torque transmission. The overall shape of the blocking pliers cannot be freely transformed, and it is difficult to achieve an effective buffering effect. The actual difficulty of operation

Images