Biopsy forceps for long and narrow tube wall mucous membranes
A technology of biopsy forceps and tube wall, which is applied in the field of biopsy of narrow and long tubular body cavity mucosa, can solve the problem that the jaws that cannot be unfolded are facing the inner wall of the body cavity, and achieve the effect of convenient and fast biopsy surgery
Inactive Publication Date: 2014-05-14
SOUTHERN MEDICAL UNIVERSITY
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- Application Information
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Problems solved by technology
However, for some narrow and long pipeline endoscopes in the human body, the lesion site must be seen barely, so no matter how to adjust the adjustment angle of the biopsy forceps jaws in this case, it is impossible to make the expanded jaws face the body cavity. inner wall
And because each half is spoon-shaped, even if it can touch the inner wall of the body cavity, it cannot pierce or penetrate the mucous membrane for grasping
Method used
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Embodiment Construction
[0019] see figure 1 , The biopsy forceps in this example includes a control handle 1, a spring sheath tube forceps arm 2, a fixed tube 3, a clamp 4 and a control wire 5 that is passed through the spring sheath tube forceps arm 2, which are connected in sequence.
[0020] see Figure 2-4 , the jaw 4 is capsule-shaped when closed, and the capsule-shaped jaw 4 is composed of a first half-jaw 6 and a second half-jaw 7 .
[0021] see Figure 2-4 , the head of the first half of the clamp 6 away from the fixed tube is crowned, and half of the head of the crown extends to the second half of the clamp 7 to form the jaw of the first half of the clamp 6 . A peripheral wall of the first half jaw 6 obliquely extends a pliers handle 8 toward one side of the fixing tube 3 and the second half jaw 7 . The middle part of the pliers handle 8 is pierced with a first pivot pin 9 , and the two ends of the first pivot pin 9 are on the tube wall of the fixed tube 3 . The end of the pincer handle ...
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The invention relates to a pair of biopsy forceps for long and narrow tube wall mucous membranes. A forceps clip of the biopsy forceps is in a capsule shape when closed, and the capsule-shaped forceps clip is composed of a first half forceps clip body and a second half forceps clip body. The biopsy forceps are characterized in that the head, far away from a fixing tube, of the first half forceps clip body is in a crow shape, and a half of the crown-shaped head stretches towards the second half forceps clip to form a jaw of the first half forceps clip body; the peripheral wall of the first half forceps clip body extends towards one side of the fixing tube and one side of the second half forceps clip body in an inclined mode to form a forceps handle, the middle of the forceps handle is hinged to the tube wall of the fixing tube, and the tail end of the forceps handle is connected with the far end of a control steel wire; a half of the tube wall of the fixing tube extends towards the far end of the fixing tube to the jaw of the first half forceps clip body to form the peripheral wall of the second half forceps clip body, and a jaw, matched with the jaw of the first half forceps clip body, of the second half forceps clip body is formed at the position making contact with the jaw of the first half forceps clip body. The biopsy forceps have the advantages of being convenient and rapid to use.
Description
technical field [0001] The invention relates to a biopsy forceps for diagnosis, specifically, the forceps are suitable for biopsy of body cavity mucous membrane, especially narrow and long tubular body cavity mucous membrane. Background technique [0002] Biopsy forceps are one of the important tools in biopsy surgery, used to collect biopsy samples. Existing biopsy forceps are of a great variety. According to its applicable occasions, it is mainly used for biopsy of superficial body cavities (such as vagina) and biopsy of deep body cavities (such as esophagus, trachea, etc.). The arms of the former are usually rod-shaped hard arms, while the arms of the latter are usually flexible PTFE sheath or spring sheath. [0003] Currently, biopsy forceps with spring-loaded sheath arms are the most popular. This kind of biopsy forceps includes control handles, spring sheath tube forceps arms, fixed tubes, clamps and control steel wires passing through the forceps arms connected in ...
Claims
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IPC IPC(8): A61B10/06
Inventor 黄国华蔡绍曦
Owner SOUTHERN MEDICAL UNIVERSITY