CN213156251U

CN213156251U - Cutter for colorectal surgery

Info

Publication number: CN213156251U
Application number: CN202021258332.7U
Authority: CN
Inventors: 杨大庆
Original assignee: Wenzhou Central Hospital
Current assignee: Wenzhou Central Hospital
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-05-11
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a cutter for colorectal surgery, which comprises a forceps clip, wherein a reset spring and a cutting blade are arranged in the forceps clip, the upper end of the cutting blade is connected with a connecting rod extending to the outside of the forceps clip, and the outside of the forceps clip is provided with a push button connected with the connecting rod; the tweezers clamp is provided with a stroke hole for the connecting rod to be placed, the tweezers clamp is internally provided with a limiting component capable of limiting the pushing button, the limiting component comprises an inner shell, a limiting push rod and a limiting spring, a limiting groove is formed in the inner shell, the limiting groove is provided with a notch, a limiting block is fixedly arranged on one side of the limiting push rod, the pushing button is provided with a clamping groove for the limiting block to stretch into, the limiting push rod pushes the button back to the limiting groove, and when the limiting block can stretch into the clamping groove, the cutting blade does not stretch out of the opening end of the tweezers clamp. The utility model has the advantages of it is following and effect: can carry on spacingly to cutting blade to the condition that prevents that cutting blade mistake from stretching out takes place, uses laborsaving safety more.

Description

Cutter for colorectal surgery

Technical Field

The utility model relates to an apparatus field for the operation, in particular to cutterbar that colorectal surgery used.

Background

When the colorectal resection operation is performed in the colorectal surgery, the colorectal is usually precisely cut, and the precision requirement is very high. However, the common surgical knife is simple in design, does not have a device for fixing the colorectal, cannot fix the position of the colorectal to be cut during cutting, is difficult to guarantee the accuracy of surgical cutting, and increases surgical risks.

From this, chinese patent with publication number CN201620910884.9 discloses a knot rectum cutter for surgery, which comprises a forceps holder with a U-shaped cross section, the inner center of the closed end of the forceps holder is connected with a cutting blade through a spring, the spring is in a spiral cylinder shape, the diameter of the spring is smaller than one third of the inner width of the forceps holder, the tip of the cutting blade faces the open end of the forceps holder, the length of the cutting blade is 1 to 2cm shorter than that of the forceps holder, the center of the top of the cutting blade is connected with a disk-shaped push button through a connecting rod, and the push button is located outside the forceps holder.

Above-mentioned patent is through being the telescopic cutting blade in the middle of the tweezers of U-shaped presss from both sides in the cross-section, and usable tweezers press from both sides the centre gripping and fix the colorectal tissue during use, release cutting blade again and cut the operation to the colorectal to the problem that can not fix the position that the colorectal was cut when having solved the cutting has ensured the precision of operation cutting.

The using method comprises the following steps: firstly, a doctor needs to press the push button by a forefinger, then clamps and fixes the colorectal tissue by using the forceps clip, and then pushes the push button by a forefinger to push out the cutting blade to perform a cutting operation on the colorectal. However, there is still a risk: the doctor pushes the push button down through the forefinger to utilize the tweezers to press from both sides the in-process of fixing the colorectal tissue of centre gripping, there is the forefinger to break away from carelessly and to push away the button or forefinger to press the pressure degree not enough, lead to the condition that the cutting knife was unexpected to be released under the effect of spring, very easily cause the damage to normal rectal tissue like this, cause medical accident.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cutterbar that colorectal surgery used to solve the problem that proposes among the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions: a cutter for colorectal surgery comprises a forceps clamp with a U-shaped cross section, wherein one end of the forceps clamp is used as an open end of the clamp, the other end of the forceps clamp is used as a closed end of transition connection, a return spring is arranged at the center inside the closed end of the forceps clamp, a cutting blade is connected to the return spring, the cutting blade is provided with a blade surface for cutting, the blade surface faces the open end of the forceps clamp, the cutting blade always has a trend of moving towards the open end of the forceps clamp under the elastic acting force of the return spring, a connecting rod is fixedly connected to the upper end of the cutting blade, the connecting rod extends upwards out of the forceps clamp, and the part of the connecting rod extending out of the forceps clamp is fixedly connected with a push button convenient for force application of hands; the forceps clip is provided with a stroke hole for the connecting rod to extend through along the movement direction of the cutting blade, and the connecting rod is always positioned in the stroke hole in the movement process of the cutting blade; the forceps presss from both sides inside position that corresponds the promotion button and is provided with and can carry out spacing stop component to promoting the button, stop component including inner shell, spacing push rod and spacing spring, the inner shell inside seted up the spacing groove, this spacing groove has a notch towards promoting the button, spacing push rod be located the spacing inslot and move along and the spacing groove, spacing push rod towards the fixed stopper that is provided with in one side that promotes the button, the promotion button set up the draw-in groove that supplies the stopper to stretch into, spacing push rod one side compression that promotes the button dorsad be provided with spacing spring, thereby make the stopper can stretch into to the draw-in groove in realizing spacingly under this spacing spring's elastic force, and work as the stopper can stretch into in the draw-in groove when, cutting blade do not stretch out the open end that the forceps pressed from both sides.

The further setting is that: the inner shell be provided with the screens arch in notch department spacing push rod and stopper between fixedly be provided with the protruding counterbalance of screens to prevent that spacing push rod deviates from the screens board of notch.

The further setting is that: the limiting block is hemispherical, and the clamping groove is matched with the limiting block in shape.

The further setting is that: one side of the clamping groove, which faces the closed end of the forceps clip, extends to form a section of transition curved surface.

The beneficial effects of the utility model reside in that:

1. the utility model discloses in realize spacing to promoting the button through setting up stop component, thereby using the utility model discloses the time, the forefinger need not to press the promotion button always, has avoided the forefinger to break away from carelessly and has promoted the button or forefinger to press down the dynamics inadequately, leads to the unexpected condition of releasing of cutting knife under the effect of spring. Through the mode of spacing push rod embedding to the draw-in groove, the position of spacing promotion button, when needing to relieve spacing, promote the promotion button through the forefinger can, it is very convenient.

2. The utility model discloses a set up spacing spring and guaranteed that spacing push rod can stably imbed to the draw-in groove, let spacing structure reliable and more stable.

3. The utility model discloses in prevent through setting up the screens arch and screens board that spacing push rod from deviating from the spacing groove under the elastic force of spacing spring, rational in infrastructure stability.

4. The utility model discloses well stopper is hemispherical, and the draw-in groove and the shape phase-match of stopper make things convenient for follow-up forefinger to promote the smoothness nature of promotion button.

5. The utility model discloses in extend through the draw-in groove towards one side of the closed end of tweezers clamp and set up one section transition curved surface, make the stopper better remove to in the draw-in groove.

Drawings

FIG. 1 is a sectional view of the embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a top view of the embodiment;

fig. 4 is an enlarged view of a portion B in fig. 3.

In the figure: 11. forceps clips; 111. an open end; 112. a closed end; 113. a travel hole; 12. a return spring; 13. a cutting blade; 131. a knife face; 14. a connecting rod; 15. a push button; 151. a card slot; 1511. a transition curved surface; 21. an inner shell; 22. a limit push rod; 23. a limiting spring; 31. a limiting groove; 311. a notch; 41. a limiting block; 51. a clamping bulge; 52. screens board.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, a cutter for colorectal surgery comprises a forceps holder 11 with a U-shaped cross section, one end of the forceps holder 11 is used as an open end 111 for clamping, the other end is used as a closed end 112 for transition connection, a return spring 12 is arranged at the center inside the closed end 112 of the forceps holder 11, a cutting blade 13 is connected to the return spring 12, the cutting blade 13 has a blade surface 131 for cutting, the blade surface 131 faces the open end 111 of the forceps holder 11, the cutting blade 13 always has a tendency to move towards the open end 111 of the forceps holder 11 under the elastic force of the return spring 12, a link 14 is fixedly connected to the upper end of the cutting blade 13, the link 14 extends upwards to the outside of the forceps holder 11, and a push button 15 convenient for hand force application is fixedly connected to the portion of the link 14 extending out of the forceps holder 11.

The forceps holder 11 is provided with a stroke hole 113 along the moving direction of the cutting blade 13, through which the connecting rod 14 extends, and in the moving process of the cutting blade 13, the connecting rod 14 is always positioned in the stroke hole 113;

the position of the inside corresponding promotion button 15 of tweezers holder 11 is provided with and to promote button 15 and carry out spacing stop member, stop member is including inner shell 21, spacing push rod 22 and spacing spring 23, inner shell 21 is inside to have seted up spacing groove 31, this spacing groove 31 has a notch 311 towards promotion button 15, be located spacing inslot 31 edge and spacing groove 31 and move, spacing push rod 22 is towards the fixed stopper 41 that is provided with in one side of promoting button 15, promote button 15 and set up the draw-in groove 151 that supplies stopper 41 to stretch into, spacing push rod 22 one side compression that promotes button 15 dorsad be provided with spacing spring 23, thereby make stopper 41 can stretch into in the draw-in groove 151 realize spacing under the elastic force of this spacing spring 23, and when stopper 41 can stretch into in the draw-in groove 151, cutting blade 13 does not stretch out the open end 111 of tweezers holder 11.

The position of the limiting component is arranged at the side end of the forceps holder 11 on the stroke hole 113 so as to ensure that the normal movement of the connecting rod 14 is not obstructed, and the position of the limiting component can be referred to in figures 3 and 4.

The inner shell 21 is provided with a locking protrusion 51 at the notch 311, and a locking plate 52 is fixedly arranged between the limit push rod 22 and the limit block 41 and is abutted against the locking protrusion 51 to prevent the limit push rod 22 from falling out of the notch 311.

The stopper 41 is hemispherical, and the shape of the slot 151 matches that of the stopper 41, so that the smoothness of the push button 15 pushed by the forefinger can be ensured.

One side of the clamping groove 151 facing the closed end 112 of the forceps holder 11 is provided with a section of transition curved surface 1511 in an extending manner.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A cutter for colorectal surgery comprises a forceps holder (11) with a U-shaped cross section, one end of the forceps holder (11) serves as an open end (111) for clamping, the other end of the forceps holder serves as a closed end (112) for transitional connection, a return spring (12) is arranged in the center of the inside of the closed end (112) of the forceps holder (11), a cutting blade (13) is connected onto the return spring (12), the cutting blade (13) is provided with a blade face (131) for cutting, the blade face (131) faces the open end (111) of the forceps holder (11), the cutting blade (13) always tends to move towards the open end (111) of the forceps holder (11) under the elastic force of the return spring (12), a connecting rod (14) is fixedly connected to the upper end of the cutting blade (13), and the connecting rod (14) extends upwards out of the forceps holder (11), and the part of the connecting rod (14) extending out of the forceps clip (11) is fixedly connected with a push button (15) which is convenient for the force application of the hand; the method is characterized in that:

the forceps holder (11) is provided with a stroke hole (113) for the connecting rod (14) to extend through along the movement direction of the cutting blade (13), and the connecting rod (14) is always positioned in the stroke hole (113) in the movement process of the cutting blade (13);

the forceps holder (11) is internally provided with a limiting component capable of limiting the pushing button (15) corresponding to the pushing button (15), the limiting component comprises an inner shell (21), a limiting push rod (22) and a limiting spring (23), a limiting groove (31) is formed in the inner shell (21), the limiting groove (31) is provided with a notch (311) facing the pushing button (15), the limiting push rod (22) is positioned in the limiting groove (31) and moves along the limiting groove (31), a limiting block (41) is fixedly arranged on one side of the limiting push rod (22) facing the pushing button (15), the pushing button (15) is provided with a clamping groove (151) for the limiting block (41) to extend into, the limiting spring (23) is arranged on one side of the limiting push rod (22) facing away from the pushing button (15) in a compression mode, the limiting block (41) can extend into the clamping groove (151) under the elastic acting force of the limiting spring (23) to achieve limiting, and when the limiting block (41) can extend into the clamping groove (151), the cutting blade (13) does not extend out of the opening end (111) of the forceps holder (11).

2. A cutter for colorectal surgery according to claim 1, wherein: the inner shell (21) is provided with a clamping bulge (51) at the notch (311), and a clamping plate (52) which is propped against the clamping bulge (51) is fixedly arranged between the limiting push rod (22) and the limiting block (41) to prevent the limiting push rod (22) from dropping out of the notch (311).

3. A cutter for colorectal surgery according to claim 1, wherein: the limiting block (41) is hemispherical, and the clamping groove (151) is matched with the limiting block (41) in shape.

4. A cutter for colorectal surgery according to claim 3, wherein: one side of the clamping groove (151) facing the closed end (112) of the forceps holder (11) is provided with a section of transition curved surface (1511) in an extending mode.