The utility model provides a pair of endoscopic undercutting pipe tongs. The pair of endoscopic undercutting pipe tongs comprises a knife rest (1), a knife blade (2) arranged on the knife rest, a plastic coated layer (3) connected with the knife rest, a spring pipe (4) arranged in the plastic coated layer (3), a sliding ring (5) which drives the spring pipe to stretch and retract, a handle (6) and a positioning pin (14), wherein the knife rest comprises a knife groove (11) formed by a side wall and a limiting step (12) which is arranged in the knife groove and limits the displacement of the knife blade; first positioning holes (13) are also symmetrically formed in the two side walls of the knife groove; the positioning pin (14) penetrates through the positioning holes and fixes the knife blade. The tail part of the knife blade provided by the utility model is positioned through a notch, so that the cutting length of a knife edge is effectively increased; the shape of the knife edge is more favorable for machining; the machining cost is reduced. The integrated knife rest is adopted, so that the machining time is shortened effectively, and the production cost is reduced.

An endoscopic inner pipe cutting pliers, including the turret (I) and set the blade on the tool holder (2), connecting the toolholder plastic coated layer (3), provided in the package plastic layer internal spring tube (4), said drive spring tube telescopic slip ring (5) and a handle (6), characterized in that said carriage comprises said sipe formed by the side walls (11), provided in Knife blade slot and limiting the displacement of the stepped stopper (12); said sipes disposed symmetrically on both side walls also have a first positioning hole (13); said endoscopic cutting through the pipe clamp further comprises the positioning hole and the positioning pin fixed to said blade (14).
According to claim 1, wherein the pipe clamp, characterized in that the blade (2) comprises a knife blade (21) and blade (22), the cutting edge throughout the length of the blade edge.
According to claim 2, wherein the tube clamp, characterized in that said blade knife blade at one end is provided with a knife slot limit level (12) matches the gap (23).
According to claim 1, wherein the pipe wrench, wherein said knife slot does not include limiting hole and stop pin.
According to claim 1, wherein the pipe clamp, characterized in that said rear positioning hole (13) in said toolholder.
According to claim 1, wherein the pipe clamp, characterized in that the blade (2) has provided on the first positioning hole (13) to match the second positioning holes (24).
According to claim 6, wherein the pipe clamp, characterized in that the blade (2) of the blade (22) located at one end of the positioning hole arc transition.
According to claim 1, wherein the pipe clamp, characterized in that said blade (22) further includes a fitting hole (221).
According to claim 1, wherein the pipe wrench, wherein said slip ring fitted over the slider (51), said slider (51) with said plastic layer packet (2) and the handle (6 ) connection.
According to claim 9, wherein the pipe clamp, characterized in that said slip ring is a ring disposed symmetrically to the two sliders equal diameter.

- Intraspecific endoscopic pipe cutting pliers

Technical Field

[0001] The invention relates to the field of medical devices, and more particularly, to an endoscopic pipe cutting pliers.

Background

[0002] Endoscopic pipe cutting pliers is nearly 1 - 2 years, emerging endoscopic products subsidiary, to cut off the endoscopic surgery into the body and easy to cut excess tube or medical devices as the main purpose. Endoscopic existing pipe cutting pliers toolholder secondary processing and assembly stop pin together.

[0003] The prior art endoscopic pipe cutting pliers holder and blade tip by the composition, the blade holder and positioning pin connection, but the blade of the knife holder also has a hole through the installation of stop pin limit conduct blade limit.

[0004] However, the limit on the turret open access hole and stop pin through the second installation of said pipe clamp installation cumbersome process inconvenient. And the prior art blade is carried out through the front limit gaps and limit sales, not only reduces the effective cutting area, and because the blade edge portion has a notch below the high profiled blade processing requirements.

Utility Model Content

[0005] In view of this, the utility model provides an endoscopic pipe cutting pliers, beneficial process, reducing processing costs.

[0006] To achieve the above object, the present utility model provides the following technical solutions:

[0007] An endoscopic pipe cutting pliers, including the turret (I) and set the blade on the tool holder (2), connecting the toolholder plastic coated layer (3), provided in the plastic bag layer internal spring tube (4), driving the spring tube telescopic slip ring (5) and a handle (6);

[0008] The blade holder comprises a blade groove (11) formed by the side walls, and a groove provided in the knife blade to limit the displacement of the stepped stopper (12); said side walls also symmetrical sipes It is provided with a first positioning hole (13);

[0009] The endoscopic cutting through the pipe clamp further comprises a positioning hole and the positioning pin fixed to said blade (14).

[0010] Preferably, the blade (2) comprises a knife blade (21) and blade (22), the cutting edge throughout the length of the blade edge.

[0011] Preferably, the knife blade at one end is provided with a knife slot limit level (12) matches the gap (23).

[0012] Preferably, said sipes does not include limiting hole and stop pin.

[0013] Preferably, said positioning hole (13) located at the rear of the toolholder.

[0014] Preferably, the blade (2) is provided with the first positioning hole (13) to match the second positioning hole

(Twenty four).

[0015] Preferably, the blade (2) of the blade (22) located at one end of the positioning hole arc transition.

[0016] Preferably, the cutting edge (22) further includes a fitting hole (221).

[0017] Preferably, the slip ring fitted over the slider (51), said slider (51) with said plastic layer packet (2) and a handle (6) is connected.

[0018] Preferably, the slip ring is a ring disposed symmetrically to the two sliders equal diameter.

[0019] The utility model provides endoscopic pipe cutting pliers, including the turret (I) and set the blade (2), connecting the toolholder plastic coated layer (3) on the tool holder, set up in the Plastic layer inside said spring tube (4), driving the spring tube telescopic slip ring (5) and a handle (6); said carriage comprises a knife grooves formed by the side wall (11) provided in the Knife blade slot and limiting the displacement of the stepped stopper (12); said sipes disposed symmetrically on both side walls also have a first positioning hole (13); and through the positioning hole of the fixed blade dowel pins (14). The utility model provides the tail blade through the gap position, effectively increasing the length of the cutting blade; the shape of the blade is more conducive to processing, reduce processing costs. One-piece knife holder, effectively reducing the processing time and reduce production costs.

Brief Description

[0020] In order to more clearly illustrate the utility model embodiments or the prior art technical solutions, the following example will be the implementation of the accompanying drawings or described in the prior art requires the use of a simple introduction, Obviously, the description below The drawings are merely the utility model some embodiments, those of ordinary skill in terms of creative effort without precondition, you can also obtain other drawings based on these drawings.

Endoscopic pipe cutting pliers structure [0021] FIG. 1 embodiment of the present utility model provides a schematic;

[0022] FIG. 2 is a prior art endoscopic pipe cutting pliers toolholder schematic;

Endoscopic [0023] FIG. 3 is a utility model provided by the embodiment of the tool holder pipe cutting pliers schematic;

Endoscopic [0024] FIG. 4 embodiment of the present utility model provides a cross-sectional view of the tube cutting tool holder clamp;

[0025] FIG. 5 is a prior art endoscopic pipe cutting blade clamp schematic;

Endoscopic [0026] FIG. 6 embodiment of the present utility model provides a schematic view of pipe cutting blade clamp;

Within the prior art endoscopic pipe cutting pliers structural diagram [0027] FIG. 7.

DETAILED DESCRIPTION

[0028] The utility model discloses an endoscopic pipe cutting pliers, insert the tail through the gap position, effectively increasing the length of the cutting blade; the shape of the blade is more conducive to processing, reduce processing costs. One-piece knife holder, effectively reducing the processing time and reduce production costs.

[0029] The invention will now be combined with the new embodiment of the drawings, an embodiment of the present utility model technical program clear, complete description of embodiments, it is clear that the described embodiments are only part of the utility model, rather than all embodiments. Based on the utility model embodiment, all other embodiments by those of ordinary skill in the creative work did not make the premise obtained, are within the scope of the present utility model protection.

[0030] FIG. 1, 4, as shown in FIG. 6 of the utility model provides an endoscopic pipe cutting pliers, including the turret I and set up the blade on the tool holder 2, connecting the tool carrier bag Plastic layer 3 is disposed in the interior of the plastic coated spring tube layer 4, the drive spring tube telescopic slip ring 5 and a handle 6; the blade holder comprises a blade groove formed by the side walls 11, disposed in the knife and limiting the displacement of said blade slot limit step 12; both side walls of the sipe is also symmetrically disposed with a first positioning hole 13; through the positioning hole and the positioning pin fixed to the blade 14. The length L shown in FIG. 1 is actually implemented into the cut part of the body.

[0031] According to the present utility model, on the knife slot does not include limiting hole and stop pin. It can only be installed on the knife blade slot in the production and assembly of the pipe wrench, saving time. Also the stopper stepped sipes 12 provided in the rear. The first positioning hole 13 is located aft of the toolholder. The first positioning hole and the distance is greater than the distance between the rear groove cutter with the blade slot tail stepped between the stopper.

Shown in [0032] FIG. 6, the blade 2 comprises a knife blade 21 and the blade 22, the cutting edge throughout the length of the blade edge increases the effective length of the cutting blade. The knife blade at one end is provided with a knife 12 slot limit stepped notch 23 matches. When the gap with the stopper stepped fit, the blade is cutting state, when the gap separating the limit level, in the uncut state. The blade 22 also includes a mounting hole 221, the mounting hole on the mounting spring endoscopic tube pipe cutting pliers and slip-ring controlled by stretching the spring tube to control the rotation of the cutting blade. The blade is provided with the first positioning holes 13 matches the second positioning holes 24 2. 2 of the blade edge positioning hole 22 located at one end arc transition.

[0033] This utility model, the slip ring fitted over the slider 51, the slider 51, respectively, and the plastic bag layer 2 and the handle 6 connected in accordance with. Ring ring is symmetrically arranged on the slider of the slide two equal diameter. The slider rod is hollow, plastic coated layer is also a hollow structure, one end of the spring is connected to the pipe fitting hole of the blade, and the other end connected to the slip ring, the slip ring realized by moving the blade on the slider rotary cutter.

[0034] FIG. 2 and FIG. 5, FIG. 2 c is the art of stop pin carried by the stopper pin with the stopper Fig. 5 notches a, can prevent excessive cutting blade. And because a gap such that the effective length of the prior art cutting edge of the blade is reduced b, not a wide range of cutting. The utility model provides the tail blade through the gap position, effectively increasing the length of the cutting blade; the shape of the blade is more conducive to processing, reduce processing costs. One-piece knife holder, effectively reducing the processing time and reduce production costs.

[0035] Also shown in Figure 7, the prior art slip ring is a ring fitted over the slider, convenient holding, and slip ring The utility model provides the two rings, finger roots better stability.

[0036] In various embodiments of the present specification using progressive manner described, different from all the other embodiments of the example highlights of each of the embodiments, the same or similar portions between the various embodiments can see each other.

[0037] The above description of the disclosed embodiments, so that the skilled in the art to make or use the utility model. These various modifications to the field of professional and technical personnel embodiments will be apparent, the general principles defined herein may be made without departing from the spirit of the utility model or range, implemented in other embodiments. Thus, the utility model will not be limited to these embodiments shown herein, but rather to meet consistent with the principles disclosed herein, and novel features of the widest range.