Utility model content
Utility model object: technical problem to be solved in the utility model is for the deficiencies in the prior art, provides a kind of hemostatic clamp.
In order to solve the problems of the technologies described above, the utility model discloses a kind of hemostatic clamp, comprise clamp assemblies and holder, described clamp assemblies comprises clip body and the steel wire buckle connecting successively; Described holder front end is provided with fixed pin shaft, clip body consists of two clamping limbs, the tail end of two clamping limbs connects by active pin shaft, the middle part of two clamping limbs is respectively provided with a chute, described fixed pin shaft is through described chute, and described two clamping limbs move back and forth the switching that forms clip body along chute; The end of described chute is provided with bending structure, and when described clamping limb moves while making fixed pin shaft be arranged in bending structure, two clamping limbs are in locked closed position.
In this utility model, described steel wire buckle winding is on active pin shaft, and when the pulling force applying on steel wire buckle reaches predetermined value (scope of this value is 35-40N), the stretching and described active pin shaft of steel wire buckle departs from; After steel wire buckle and active pin shaft depart from, the rear portion of clip body is fixed in holder.
In this utility model, the tail end of described two clamping limbs is provided with crotch structure, described holder is provided with the projection with described crotch structure adaptation, and when two clamping limbs are during in locked closed position, the crotch structure of two clamping limb tail ends is buckled in described projection.Form thus dual fail-safe, guarantee that hemostatic clamp is stable under lock-out state, not sudden outburst again.
In this utility model, the interlock far-end indention of described two clamping limbs coordinates, and two binding clips are synchronously coincide, and guarantees the effectiveness after clip is closed.After the interlock far-end closure of two clamping limbs, end face is spherical end surface, the better bend of crossing, and protection endoscope tract.
In this utility model, the sidewall of described two clamping limbs is gradually wide structure by far-end to near-end.Can allow clip root strength increase, while also not lose clip smoothness and cross bending.
In this utility model, described holder connects transition cap successively, locking cap and remote spring pipe form trocar sheath assembly, described clamp assemblies comprises the connector that connects steel wire buckle, on described connector, arrange and there is elastic chaste tree pawl, chaste tree pawl is provided with two above buckles that can carry out deformation, described holder is mutually nested with transition cap portion, and mutually nested part is provided with the draw-in groove that can hold buckle, described buckle is connected holder with transition cap, when the pulling force applying on chaste tree pawl reaches preset value (scope of this value is 20-30N), it is stretching that buckle produces elastic deformation, make buckle depart from draw-in groove, holder and transition cap depart from,
Described transition cap tail end is provided with transition cap mold insert, make the outer wall of transition cap form annular groove, described locking cap one end is fixedly connected with remote spring pipe, and the other end is provided with the annular projection with described annular groove adaptation, makes can relatively rotate between transition cap and locking cap.
In this utility model, the internal diameter of described locking cap and remote spring pipe is greater than the maximum outside diameter of steel wire buckle, connector and chaste tree pawl.Make like this this utility model be different from traditional device, can, so that steel wire buckle, connector, chaste tree pawl after departing from can enter in remote spring pipe under the traction of operating rope, reduce 2 of human body injuries.
In this utility model, in described remote spring pipe, be provided with bourdon tube transition piece, connector is connected with an operating rope, and described bourdon tube transition piece is provided with and only holds the through hole that operating rope passes through.Utilize thus bourdon tube transition piece to form backstop.
In this utility model, the hole shape that described clamping limb arranges active pin shaft is oval shape, making thus buckle be more prone to produce dislocation size decreases enters holder bottom outlet and can again flick and block clip, can effectively reduce closure-resistive and increase clamping force, contribute to clip to complete folder and close and do not come off.
In this utility model, described chute is the chute with radian.The style of chute is used arc or straight type design, ensures that clip motion is smooth and easy, and reaches designed openings size.
Beneficial effect: hemostatic clamp described in the utility model, simple to operation, can in human body, according to various angles, need to be rotated easily, simultaneously, after hemostatic clamp is located successfully, can pull by operating rope, object is to allow hemostatic clamp body stay inside of human body.
The specific embodiment
The utility model discloses a kind of hemostatic clamp, comprise clamp assemblies and holder, described clamp assemblies comprises clip body and the steel wire buckle connecting successively; Described holder front end is provided with fixed pin shaft, clip body consists of two clamping limbs, the tail end of two clamping limbs connects by active pin shaft, the middle part of two clamping limbs is respectively provided with a chute, described fixed pin shaft is through described chute, and described two clamping limbs move back and forth the switching that forms clip body along chute; The end of described chute is provided with bending structure, and when described clamping limb moves while making fixed pin shaft be arranged in bending structure, two clamping limbs are in locked closed position.
Described steel wire buckle winding is on active pin shaft, and when the pulling force applying on steel wire buckle reaches predetermined value, the stretching and described active pin shaft of steel wire buckle departs from; After steel wire buckle and active pin shaft depart from, the rear portion of clip body is fixed in holder.
The tail end of described two clamping limbs is provided with crotch structure, and described holder is provided with the projection with described crotch structure adaptation, and when two clamping limbs are during in locked closed position, the crotch structure of two clamping limb tail ends is buckled in described projection.
The interlock far-end indention of described two clamping limbs coordinates.After the interlock far-end closure of two clamping limbs, end face is spherical end surface.The sidewall of described two clamping limbs is gradually wide structure by far-end to near-end.Near-end described in the utility model depends near operation person one end; Far-end refers to away from operator, near target focus one end.
Described holder connects transition cap successively, locking cap and remote spring pipe form trocar sheath assembly, described clamp assemblies comprises the connector that connects steel wire buckle, on described connector, arrange and there is elastic chaste tree pawl, chaste tree pawl is provided with two above buckles that can carry out deformation, described holder is mutually nested with transition cap portion, and mutually nested part is provided with the draw-in groove that can hold buckle, described buckle is connected holder with transition cap, when the pulling force applying on chaste tree pawl reaches preset value, it is stretching that buckle produces elastic deformation, make buckle depart from draw-in groove, holder and transition cap depart from,
Described transition cap tail end is provided with transition cap mold insert, make the outer wall of transition cap form annular groove, described locking cap one end is fixedly connected with remote spring pipe, and the other end is provided with the annular projection with described annular groove adaptation, makes can relatively rotate between transition cap and locking cap.
The internal diameter of described locking cap and remote spring pipe is greater than the maximum outside diameter of steel wire buckle, connector and chaste tree pawl.
In described remote spring pipe, be provided with bourdon tube transition piece, connector is connected with an operating rope, and described bourdon tube transition piece is provided with and only holds the through hole that operating rope passes through.
The hole shape that described clamping limb arranges active pin shaft is oval shape.
Described chute is the chute with radian.
Embodiment
As depicted in figs. 1 and 2, the utility model discloses a kind of hemostatic clamp, comprise trocar sheath assembly and the clamp assemblies that is positioned at trocar sheath assembly, the holder 4 that described trocar sheath assembly connects successively, transition cap 8, locking cap 10 and remote spring pipe 11, described clamp assemblies comprises the operating rope 14 of the clip body 1, steel wire buckle 5, connector 7 and the attended operation handle 13 that connect successively; Described holder front end is provided with fixed pin shaft 2, clip body consists of two clamping limb 1a, 1b, the tail end of two clamping limbs connects by active pin shaft 3, and the middle part of two clamping limbs is respectively provided with chute 1c, a 1d, and the interlock far-end indention 1b2 of described two clamping limbs coordinates.As shown in Figure 7, the end of chute 1c, 1d is provided with bending structure 1c1,1d1, and described fixed pin shaft is through described chute 1c, 1d, when described two clamping limbs move back and forth the switching that forms clip body along chute; Described steel wire buckle 5 windings are on active pin shaft 3, and when the pulling force applying on steel wire buckle reaches predetermined value, the stretching and described active pin shaft of steel wire buckle departs from; After steel wire buckle and active pin shaft depart from, clip body is fixed in holder 4.On described connector 7, arrange and there is elastic chaste tree pawl 14, chaste tree pawl is provided with buckle 6, described holder 4 has mutually nested overlapping part with transition cap 8, and mutually nested part is provided with the draw-in groove 15 that can hold buckle 6, described buckle is connected holder 4 with transition cap 8, when the pulling force applying on buckle 6 reaches preset value, buckle 6 produces the stretching buckle that makes of deformation and departs from draw-in groove, and holder and transition cap depart from; Described transition cap 8 tail ends are provided with transition cap mold insert 9, make the outer wall of transition cap form annular groove 16, one end of described locking cap 10 is fixedly connected with remote spring pipe 11, and the other end is provided with the annular projection 10a with described annular groove adaptation, makes can relatively rotate between transition cap and locking cap.The internal diameter of described locking cap and remote spring pipe is greater than the maximum outside diameter of steel wire buckle, connector and chaste tree pawl.As shown in Figure 6, in described remote spring pipe, be provided with bourdon tube transition piece 12, described bourdon tube transition piece is provided with and only holds the through hole that operating rope 14 passes through.As shown in Figure 7, the hole shape of active pin shaft is set is oval shape 1b3 to described clamping limb.
Be illustrated in figure 2 the open configuration of two clamping limb 1a, 1b, now hemostatic clamp can be aimed to the human body that needs clamping hemostasis.As required can rotating operation rope 14, drive thus hemostatic clamp body to rotate.
As shown in Figure 3, after finding hemostasis position accurately (in this utility model, hemostatic clamp body direction is the place ahead, and operating rope direction is rear), pull back operating rope 14, now two clamping limb 1a, 1b drop back along the track of chute 1c, 1d and fixed pin shaft 2 formation, simultaneously in closure.The end of chute 1c, 1d is provided with bending structure 1c1,1d1, when described clamping limb moves while making fixed pin shaft be arranged in bending structure, guarantee that two clamping limb 1a, 1b form closure while moving backward, the end at chute 1c, 1d is set to locking position simultaneously.Meanwhile, the tail end of described two clamping limbs is provided with crotch structure 1b1, and described holder is provided with the protruding 4a with described crotch structure adaptation, and when two clamping limbs are during in locked closed position, the crotch structure of two clamping limb tail ends is buckled in described projection.On this position, clamping limb 1a, 1b can not open again.
As shown in Figure 4, continue to pull back operating rope 14, when the pulling force applying on buckle 6 reaches preset value 20-30N, buckle 6 produces the stretching buckle that makes of deformation and departs from draw-in groove, and holder and transition cap depart from mutually.
As shown in Figure 5, continue to pull back operating rope 14, when the pulling force applying on steel wire buckle 5 reaches preset value 35-40N, steel wire buckle 5 produces the stretching and described active pin shaft of deformation and departs from.
Described in the present embodiment, the sidewall of two clamping limbs is gradually wide structure by far-end to near-end.
Chute described in the present embodiment is the chute with radian.
During use, under the auxiliary supervision effect of endoscope by hemostatic clamp bulk transport to pathological changes assigned address, the conductive plug at handle place is connected to high frequency electric source, slide block recession, binding clip is closed, now can be used as high frequency incision knife and uses, pathological tissues is carried out to labelling, cutting; If occur hemorrhagely in operation process, can advance handle place slide block, binding clip is opened rotate core bar to take the lead binding clip rotation simultaneously, now can be used as mosquito forceps and stopped blooding in hemorrhage place.The pathological tissues that also can gripping after having performed the operation goes out to cut down.
This utility model provides a kind of hemostatic clamp; method and the approach of this technical scheme of specific implementation are a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; not departing under the prerequisite of this utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.In the present embodiment not clear and definite each ingredient all available prior art realized.