Summary of the invention
In view of the deficiencies of the prior art, the present invention is intended to provide a kind of surgical instruments, existing in the prior art to overcomeIt is insufficient.
A kind of surgical instruments, including the first clamp arm and the second clamp arm, first clamp arm include the first holding section, and described theTwo clamp arm include the second holding section, and first holding section engages with second holding section so that first clamp arm and instituteThe second clamp arm is stated mutually to clamp；The surgical instruments further comprises shaft, and first clamp arm and second clamp arm pass through instituteShaft is stated to be connected.
The first end of first clamp arm is connected with the first end of second clamp arm by the shaft.
The first end of first clamp arm and the first end of second clamp arm are staggered.
The first end of first clamp arm includes bending section and parallel-segment, the parallel-segment from the bending section toUpper extension；The first end of second clamp arm includes bending section and parallel-segment, the parallel-segment from the bending section toLower extension；The institute of the bending section of the first end of first clamp arm and the first end of second clamp armIt states bending section to interlock, the first end of the parallel-segment of the first end of first clamp arm and second clamp armThe parallel-segment in portion is connected by the shaft.
The second end of first clamp arm has first holding section, and the second end of second clamp arm has instituteState the second holding section.
The first end of first clamp arm includes the first hole, and the first end of second clamp arm includes theTwo holes；By first hole and second hole, the shaft is by the first end of first clamp arm and described theThe first end of two clamp arm is connected.
The first end of first clamp arm includes bending section and parallel-segment, the parallel-segment from the bending section toUpper extension, first hole are formed in the part upwardly extended；The first end of second clamp arm include bending section andParallel-segment, the parallel-segment are extended downwardly from the bending section, and second hole is formed in the part extended downwardly.
First holding section has tip, and second holding section is arc-shaped, is formed on the inside of the arc recessedIt falls into, the recess is for accommodating the tip.
The ontology of first clamp arm is linear, and the ontology of second clamp arm is linear.
First clamp arm includes the first limiting section, and second clamp arm includes the second limiting section, first limiting sectionIt is cylindrical protrusion with second limiting section.
The surgical instruments is blood vessel clip.
By the way that shaft is arranged between the first clamp arm and the second clamp arm, can increase between the first clamp arm and the second clamp armOpening angle, convenient for clamping blood vessel.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.It is retouched in of the inventionIn stating, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower","front", "rear", "left", "right", "vertical", "horizontal", " item ", "bottom" "inner", "outside", " clockwise ", " counterclockwise ", " axisTo ", " radial direction ", the orientation or positional relationship of the instructions such as " circumferential direction " be to be based on the orientation or positional relationship shown in the drawings.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importanceOr implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed orImplicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, threeIt is a etc., unless otherwise specifically defined.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for solvingThe present invention is released, and is not considered as limiting the invention.
As shown in Figure 1 to Figure 3, blood vessel clip of the invention includes the first clamp arm 1, the second clamp arm 2 and shaft 3.
One end of first clamp arm 1 has the first holding section 101, and one end of the second clamp arm 2 has the second holding section 201.TheThe other end of one clamp arm 1 is connected with the other end of the second clamp arm 2 by shaft 3.
About "inner" and "outside": the direction in the space surrounded towards the first clamp arm 1 and the second clamp arm 2 is "inner", separate theThe direction in the space that one clamp arm 1 and the second clamp arm 2 surround is "outside", "inner" direction and "outside" direction and putting down where Fig. 1, Fig. 3Face is parallel.About "upper" and "lower": the first clamp arm 1 is located at the lower section of the second clamp arm 2, as shown in Figure 1, Figure 3.
As shown in Figure 1, Figure 3, the first holding section 101 has tip, and the second holding section 201 is arc-shaped, in the inside of arcIt is formed with recess, recess is for accommodating the tip of the first holding section 101.During engaging, the tip of the first holding section 101Successively with the lower surface of the second holding section 201 and medial surface against and making 201 flexible deformation of the second holding section, be flared out.After continuing on, the tip of the first holding section 101 enters the recess of the second holding section 201, at this point, the second holding section 201 is from bulletThe property original shape of recoverable force, the tip of the first holding section 101 is sticked in recess.Blood vessel clip after engaging is as shown in Figure 1.
As shown in Figure 1, Figure 3, the other end of the first clamp arm 1 includes bending section and parallel-segment, bending section be located at parallel-segment withBetween the ontology of first clamp arm 1, parallel-segment is upwardly extended from bending section, forms L shape；The other end of second clamp arm 2 includes curvedTune and parallel-segment, bending section are located between parallel-segment and the ontology of the second clamp arm 2, and parallel-segment is extended downwardly from bending section, shapeAt L shape.As shown in Figure 2: the ontology of the bending section of the other end of the first clamp arm 1 from the first clamp arm 1 is bent downwardly, parallel-segment withThe ontology of first clamp arm 1 is parallel；The ontology of the bending section of the other end of second clamp arm 2 from the second clamp arm 2 is bent upwards, parallel-segmentIt is parallel with the ontology of the second clamp arm 2.The parallel-segment of the other end of the parallel-segment of the other end of first clamp arm 1 and the second clamp arm 2 is logicalIt crosses after shaft 3 is connected, the bending section of the other end of the first clamp arm 1 and the bending section of the other end of the second clamp arm 2 interlock.Such as figureShown in 2, after blood vessel clip engaging, the first clamp arm 1 and the second clamp arm 2 are at Y-shaped.In this way, the bending of the other end of the first clamp arm 1Section and the bending section of the other end of the second clamp arm 2 are staggered, so that this position of the ontology of the first clamp arm 1 and the second clamp arm 2In same plane, the clamping to blood vessel can be achieved after engaging.Also, the other end of the first clamp arm 1 is another with the second clamp arm 2End is staggered, so that after engaging, the bending section of the other end of the bending section of the other end of the first clamp arm 1 and the second clamp arm 2It is in close contact, fulcrum of the contact position of two bending sections as lever, the arm of the first clamp arm 1 and the second clamp arm 2 composition lever, instituteBetter clamping effect can be provided to the blood vessel being clamped between 2 ontology of 1 ontology of the first clamp arm and the second clamp arm by stating lever.It needsIt is noted that this section of content in " being bent downwardly " and " being bent upwards " refer to it is lower and upper in Fig. 2, correspond to Fig. 1 withDirection in Fig. 3, the "lower" in Fig. 2 refer to referring to from the "upper" of Fig. 1, Fig. 3 vertically in the direction of reader, Fig. 2From Fig. 1, Fig. 3 vertically far from the direction of reader.
The other end of first clamp arm 1 includes a hole, and the other end of the second clamp arm 2 also includes a hole, and two holes are coaxial.Shaft 3 be inserted into the first clamp arm 1 the other end and the second clamp arm 2 the other end hole in, the both ends of shaft 3 are expanding, make its twoThe diameter of a end is greater than the aperture in the hole of the aperture in the hole of the other end of the first clamp arm 1 and the other end of the second clamp arm 2.Such asThis, shaft 3 will not fall off from hole.In order to relative motion, the diameter of shaft 3 is less than at least one hole in two holesAperture, the i.e. hole wall of the periphery at least one hole of shaft 3 cannot be bonded completely, therefore, the fulcrum by shaft 3 as lever,The clamping effect of blood vessel is not so good as using the contact position of two bending sections as the fulcrum of lever.
The ontology of first clamp arm 1 is linear, and the ontology of the second clamp arm 2 is linear.
Blood vessel clip is installed in Clip Applier for convenience, the first clamp arm 1 also has limiting section 102, and limiting section 102 is closeDescribed one end of first clamp arm 1 is arranged, and limiting section 102 is cylindrical protrusion.Second clamp arm 2 also has limiting section 202, limitPortion 202 is arranged close to described one end of the second clamp arm 2, and limiting section 202 is cylindrical protrusion.