CN208511085U - Angle retractor - Google Patents

Abstract

The utility model provides a kind of angle retractor, which includes: rack gear；First arm, one end of the first arm is fixedly attached to one end of rack gear, and the length direction of the first arm is perpendicular to the length direction of rack gear；With the second arm, one end of second arm is slidably connected with rack gear, and the second arm and the first arm are located at the same side of rack gear, wherein, the other end of the other end of first arm and the second arm is separately installed at least one blade, corresponding one at least one blade that each of at least one blade of the other end installation of first arm is installed with the other end of the second arm is symmetrical, and the free end of each of blade of the other end of the other end of the first arm and the second arm installation is bent backwards to corresponding blade to form gear foot.The utility model proposes angle retractor can be needed to retract perpendicular to skin surface or be not orthogonal to the operative incision of skin surface according to operation so that the notch space retracted is fully utilized.

Description

Angle retractor

Technical field

The utility model relates to a kind of medical instruments, more particularly, to a kind of operation angle retractor.

Background technique

Retractor, to appear surgical field of view, is detected and is operated convenient for doctor for retracting tissue.Retractor has various differences The specification of shapes and sizes can need to select suitable retractor according to operation.Require biggish operation can field range Selective retractor classification is more, and for Minimally Invasive Surgery, the use of retractor will meet the needs of surgical field of view, more important Be to avoid causing major injury to wound.

Minimally Invasive Surgery need to equally execute the operation such as notch, traction, other surgical instruments such as operating scissors, hand to tissue Art pincers etc. can be entered by the notch of traction carries out various operations in vivo.Surgical device in Minimally Invasive Surgery, other than retractor Tool is usually in long strip, and is often not orthogonal to skin in the course of surgery, and is led using current retractor to notch When opening, perpendicular to skin, this causes in operative process the notching edge retracted, and the notch space of traction cannot be filled The utilization divided.

Utility model content

In order to solve the above technical problems, the utility model provides a kind of angle retractor, which includes:

Rack gear；

First arm, one end of the first arm is fixedly attached to one end of rack gear, and the length direction of the first arm is perpendicular to tooth The length direction of item；With

Second arm, one end and the rack gear of the second arm are slidably connected, and the second arm and the first arm are located at the same side of rack gear,

Wherein, the other end of the other end of the first arm and the second arm is separately installed at least one blade, the first arm it is another Each of at least one blade of one end installation with it is corresponding at least one blade that the other end of the second arm is installed One is symmetrical, and the free end of each of blade of the other end of the other end of the first arm and the second arm installation backwards to Its corresponding blade bending is to form gear foot.

In one embodiment of the utility model, each of blade is respectively by being arranged in the described another of the first arm At least one mounting hole at one end and at least one mounting hole and the first arm for being arranged at the other end of the second arm and Second arm is connected.

In one embodiment of the utility model, each of blade all has mounting end, retaining wall and gear foot, In:

Mounting end can be matched with mounting hole blade to be installed to the peace of the mounting surface of the first arm or the second arm Dress face；With

Plane where gear foot is parallel to the plane where mounting end.

In one embodiment of the utility model, it is mounted on one 's at least one described blade on the first arm Retaining wall be mounted on the angle of corresponding one retaining wall at least one described blade on the second arm 17 ° -23 ° it Between.

In one embodiment of the utility model, angle is 20 °.

In one embodiment of the utility model, the first arm and the second arm are connected with two blades respectively.

In one embodiment of the utility model, angle retractor further includes positioning pin and flexible handle, and second Described one end of arm has through-hole, so that rack gear can pass through the through-hole, in which:

Positioning pin passes through described one end of the second arm, to fix position of second arm on rack gear；With

Flexible handle is connected with positioning pin, to adjust positioning pin to position the second arm.

In one embodiment of the utility model, the first arm includes:

First fixed arm, one end of the first fixed arm are fixedly connected with described one end of rack gear；

Pivoted arm in first, one end of pivoted arm is connected by shaft with the other end of the first fixed arm in first, so that Pivoted arm can be rotated relative to the first fixed arm in one；With

One end of first last pivoted arm, the first last pivoted arm is connected by shaft with the other end of pivoted arm in first, so that the One last pivoted arm can be relative to pivoted arm rotation in first, and is connected at least one described blade on the first last pivoted arm.

In one embodiment of the utility model, the second arm includes:

Second lever arm, one end and the rack gear of the first lever arm are slidably connected；

Pivoted arm in second, one end of pivoted arm is connected by shaft with the other end of the second lever arm in second, so that Pivoted arm can be rotated relative to the second lever arm in two；With

One end of second last pivoted arm, the second last pivoted arm is connected by shaft with the other end of pivoted arm in second, so that the Two last pivoted arms can be relative to pivoted arm rotation in second, and is connected at least one described blade on the second last pivoted arm.

The utility model proposes angle retractor can need to retract according to operation and perpendicular to skin surface or not hang down Directly in the operative incision of skin surface so that the notch space retracted is fully utilized, especially for field range compared with It can be minimized the injury to surgical wound when small Minimally Invasive Surgery.

Detailed description of the invention

Fig. 1 shows the perspective view of the angle retractor according to one exemplary embodiment of the utility model；With

Fig. 2 shows the front views of angle retractor shown in Fig. 1.

Specific embodiment

Illustrative, non-limiting embodiment of the utility model are described in detail with reference to the accompanying drawings, to practical new according to this The angle retractor structure of type is further described.

Referring to Fig.1 with 2, the utility model proposes angle retractor include rack gear 1, (the first arm 2 includes the to the first arm 2 Pivoted arm 23 and the first last pivoted arm 24 in one fixed arm 22, first), (the second arm 3 includes in the second lever arm 32, second to the second arm 3 Pivoted arm 33 and the second last pivoted arm 34) and multiple blades 4, wherein the first arm 2 and the second arm 3 are connected respectively on rack gear 1, Duo Geye Piece 4 is symmetrically mounted on the first arm 2 and the second arm 3.More detailed description is done to the angle retractor with reference to the accompanying drawing.

Rack gear 1 is the Linear rack 1 that the common side of those skilled in the art has uniform tooth.The one of first arm 2 End is connected to one end of rack gear 1, and the length direction of the first arm 2 is perpendicular to the length direction of rack gear 1.In the utility model In one embodiment, described one end of the first arm 2 is fixedly attached to described one end of rack gear 1, that is, the first arm 2 is used as the angle The fixed arm of retractor is connected to described one end of rack gear 1.One end of second arm 3 is slidably connected with rack gear 1, and the second arm 3 It is located at the same side of rack gear 1 with the first arm 2.The other end of the other end of first arm 2 and the second arm 3 is separately installed at least one Blade 4, and the other end installation of each of at least one blade 4 of other end installation of the first arm 2 and the second arm 3 Corresponding one at least one blade 4 is symmetrical, to symmetrically retract operative incision during surgery.In addition, the first arm 2 The free end of each of multiple blades 4 of the other end of the other end and the second arm 3 installation is curved backwards to corresponding blade 4 For song to form gear foot 43, gear foot 43 can prevent notching edge from sliding on blade 4 when retracting operative incision.

When retracting operative incision using the angle retractor during surgery, first by between the first arm 2 and the second arm 3 away from From being adjusted to sufficiently small, so that the other end of at least one blade 4 and the second arm 3 that the other end of the first arm 2 is installed was installed At least one blade 4 can smoothly protrude into notch；Then the first arm 2 and are gradually adjusted by sliding the second arm 3 on rack gear 1 The distance of two arms 3, so that the blade 4 for being separately mounted to the other end of the first arm 2 and the other end of the second arm 3 can be strutted and be cut Mouth exposes suitable surgical field of view, and the gear foot 43 of each blade 4 is placed in and needs the downside of the tissue retracted to be led It opens.The angle retractor structure is simple, easily fabricated；Facilitate and operated in operation, may adapt to the operative incision of various sizes； The gear foot 43 of the free end of each of multiple blades 4, which can be fixed effectively, needs the tissue that retracts, will not influence perform the operation into Row.

Referring to Fig.1, in one embodiment of the utility model, each of multiple blades 4 are by being separately positioned on At least one mounting hole 21 at the other end of first arm 2 and be arranged at the other end of the second arm 3 at least one A mounting hole 31 is connected to the first arm 2 and the second arm 3.Preferably, each of multiple blades 4 all have mounting end 41, Retaining wall 42 and gear foot 43, wherein mounting end 41 can cooperate with corresponding mounting hole blade 4 is installed to the first arm 2 or the Two arms 3, and keep off 43 place plane of foot and be parallel to 41 place plane of mounting end.Referring to Fig. 2, in some realities of the utility model It applies in example, one retaining wall 42 at least one blade 4 for being mounted on the first arm 2 and is mounted on the second arm 3 at least Between 17 ° -23 °, which facilitates surgical procedure, does not need to adjust the angle of corresponding one retaining wall 42 in one blade 4 It is whole, and fixed angle makes retractor have better rigidity and stability, can provide bigger retracting force.Preferably, The angle is 20 °.

Preferably, the first arm 2 and the second arm 3 are connected with two blades 4 respectively, and two blades 4 on the first arm 2 It is corresponding with one in two blades 4 on the second arm 3 respectively.When being respectively set 1 on retractor the first arm 2 and the second arm 3 When a blade 4, which is only capable of retracting the notch of a long flat or similar ellipse, and the notch of this shape is not easy to cure Raw operation；And angle retractor disclosed by the utility model uses four co-operating modes of blade 4, can play traction one Rectangular or approximate circle notch provides preferable surgical field of view, is easy to doctor's operation.

With continued reference to Fig. 1, in one embodiment of the utility model, which further includes positioning pin 51 and lives Fixed handle 52, and described one end of the second arm 3 has through-hole so that rack gear 1 can pass through the through-hole.Positioning pin 51 passes through the Described one end of two arms 3, to fix position of second arm 3 on rack gear 1.Flexible handle 52 is connected with positioning pin 51, uses To adjust positioning pin 51 to position the second arm 3.Position of second arm 3 on rack gear 1 is adjusted by positioning pin 51 and flexible handle 52 The method set are as follows: positioning pin 51 is threaded to loosening state by rotary moveable handle 52, keeps the opposite rack gear 1 of the second arm 3 sliding It is dynamic；The second arm 3 is slided, the second arm 3 is adjusted to target position；Rotary moveable handle 52 is to be threaded to fastening shape for positioning pin 51 State fixes the relative position of the second arm 3 and rack gear 1.By above description it is recognised that by adjusting positioning pin 51 and flexible handle 52 can simply adjust the relative position of the second arm 3 and the first arm 2, auxiliary operation.

Referring to Fig.1, in one embodiment of the utility model, the first arm 2 of the angle retractor includes first fixed Pivoted arm 23 and the first last pivoted arm 24 in arm 22, first.

One end of first fixed arm 22 is fixedly connected with described one end of rack gear 1.One end of pivoted arm 23 is by turning in first Axis is connected with the other end of the first fixed arm 22, this allows in first pivoted arm 23 along the direction perpendicular to rack gear length direction It is rotated relative to the first fixed arm 22.One end of first last pivoted arm 24 is connected by shaft with the other end of pivoted arm 23 in first Connect so that the first last pivoted arm 24 can along the direction perpendicular to rack gear length direction relative to first in pivoted arm 23 rotate, and At least one blade 4 is connected on first last pivoted arm 24.Accordingly, three sections of pivoted arms for forming the first arm 2 can pass through shaft respectively Rotation, to change angle of the length direction relative to 1 place plane of rack gear of the first arm 2, that is, in rotation first pivoted arm 23 or First last pivoted arm 24 simultaneously keeps 3 position of the second arm constant, and the first arm 2 and the plane where rack gear 1 are angled, the first arm 2 and the Two arms 3 not in the same plane, and then make at least one blade 4 for being connected to the first arm 2 and are connected at least the one of the second arm 3 A blade 4 also not in the same plane, at least one blade 4 for being connected to the first arm 2 can be used in this way and be connected to second At least one blade 4 of arm 3 pulls open the opening being at an angle of with skin surface, in the case where retracting notch as small as possible Meet the needs of surgical field of view, to reduce the injury to wound.

With continued reference to Fig. 1, in one embodiment of the utility model, the second arm 3 includes in the second lever arm 32, second Pivoted arm 33 and the second last pivoted arm 34.

One end of first lever arm is slidably connected with rack gear 1.One end of pivoted arm 33 passes through shaft and the second activity in second The other end of arm 32 is connected, so that pivoted arm 33 can be living relative to second along the direction perpendicular to rack gear length direction in second Swing arm 32 rotates.One end of second last pivoted arm 34 is connected by shaft with the other end of pivoted arm 33 in second, so that the second end Pivoted arm 34 can along the direction perpendicular to rack gear length direction relative to second in pivoted arm 33 rotate, and on the second last pivoted arm 34 It is connected at least one blade 4.Accordingly, three sections of pivoted arms for forming the second arm 3 can be rotated by shaft respectively, to change second Angle of the length direction of arm 3 relative to 1 place plane of rack gear, that is, pivoted arm 33 or the second last pivoted arm 34 be simultaneously in rotation second Keep 2 position of the first arm constant, the plane where 3 length direction of the second arm and rack gear 1 is angled, and the second arm 3 and the first arm 2 are not In the same plane, and then make at least one blade 4 for being connected to the second arm 3 and at least one blade 4 for being connected to the first arm 2 Also not in the same plane, at least one blade 4 for being connected to the second arm 3 can be used in this way and be connected to the first arm 2 extremely A few blade 4 pulls open the opening being at an angle of with skin surface, to meet hand in the case where retracting notch as small as possible The needs in the art visual field, to reduce the injury to wound.It will be apparent to a skilled person that first can be adjusted simultaneously Arm 2 and the second arm 3 are relative to the angle of 1 place plane of rack gear to obtain the traction mouth bigger relative to skin surface angle.

The utility model proposes angle retractor operating method it is as follows: firstly, by 4 part of blade of angle retractor Protrude into notch；Secondly, rotating flexible handle 52 to unclamp positioning pin 51, according to the size of size incision and required surgical field of view Position of mobile second arm 3 on rack gear 1, so as to adjust the relative distance of the first arm 2 and the second arm 3；Rotate flexible handle 52 With fixed locating stud 51, and then fix position of second arm 3 on rack gear 1；According to required surgical field of view, turn around the shaft respectively Three pivoted arms (that is, pivoted arm 23 and the first last pivoted arm 24 in the first fixed arm 22, first) of dynamic first arm 2 or/simultaneously respectively Rotate around the axis three pivoted arms (that is, pivoted arm 33 and the second last pivoted arm 34 in the second lever arm 32, second) of the second arm 3, thus Retract the traction mouth being at an angle of with skin surface.

Claims (8)

1. a kind of angle retractor characterized by comprising

Rack gear；

First arm, one end of first arm are fixedly attached to one end of the rack gear, and the length direction of first arm Perpendicular to the length direction of the rack gear；With

Second arm, one end and the rack gear of second arm are slidably connected, and second arm is located at first arm The same side of the rack gear,

Wherein, the other end of the other end of first arm and second arm is separately installed at least one blade, and described Described in other end installation of each of at least one the described blade of other end installation of one arm with second arm extremely Corresponding one in a few blade is symmetrical, and the installation of the other end of the other end of first arm and second arm The free end of each of the blade is bent backwards to corresponding blade to form gear foot, and

First arm includes pivoted arm in the first fixed arm, first and the first last pivoted arm, in which:

One end of first fixed arm is fixedly connected with described one end of the rack gear；

One end of pivoted arm is connected by shaft with the other end of first fixed arm in described first, so that in described first Pivoted arm can be rotated relative to first fixed arm；With

One end of described first last pivoted arm is connected by shaft with the other end of pivoted arm in described first, so that first end Pivoted arm can be connected at least one described blade relative to pivoted arm rotation in described first, and on the described first last pivoted arm.

2. angle retractor according to claim 1, which is characterized in that each of described blade passes through setting respectively At least one mounting hole at the other end of first arm and it is arranged at the other end of second arm At least one mounting hole is connected with first arm and second arm.

3. angle retractor according to claim 2, which is characterized in that each of described blade all has installation end Portion, retaining wall and the gear foot, in which:

The mounting end can be matched with the mounting hole with the blade is installed to the mounting surface of first arm or The mounting surface of second arm described in person；With

Plane where the gear foot is parallel to the plane where the mounting end.

4. angle retractor according to claim 3, which is characterized in that install described at least one on the first arm Corresponding one gear at least one the described blade of one retaining wall in a blade and installation on the second arm The angle of wall is between 17 ° -23 °.

5. angle retractor according to claim 4, which is characterized in that the angle is 20 °.

6. angle retractor according to claim 1, which is characterized in that first arm and second arm are respectively with two A blade is connected.

7. angle retractor according to claim 6, which is characterized in that the angle retractor further includes positioning pin and work Fixed handle, and described one end of second arm has through-hole, so that the rack gear can pass through the through-hole, in which:

The positioning pin passes through described one end of second arm, with position of fixation second arm on the rack gear；With

The flexible handle is connected with the positioning pin, to adjust the positioning pin to position second arm.

8. angle retractor according to claim 1, which is characterized in that second arm includes:

Second lever arm, one end and the rack gear of first lever arm are slidably connected；

Pivoted arm in second, one end of pivoted arm is connected by shaft with the other end of second lever arm in described second, with Pivoted arm in described second is set to rotate relative to second lever arm；With

One end of second last pivoted arm, the described second last pivoted arm is connected by shaft with the other end of pivoted arm in described second, with Enable the described second last pivoted arm relative to pivoted arm rotation in described second, and be connected on the described second last pivoted arm it is described extremely A few blade.