CN104997554A

CN104997554A - Cutter for uterus resection operation

Info

Publication number: CN104997554A
Application number: CN201510414008.7A
Authority: CN
Inventors: 任月芳; 万择秋; 吴晓云
Original assignee: Huzhou Maternity and Child Care Hospital
Current assignee: Huzhou Maternity and Child Care Hospital
Priority date: 2015-07-15
Filing date: 2015-07-15
Publication date: 2015-10-28
Anticipated expiration: 2035-07-15
Also published as: CN104997554B

Abstract

The invention belongs to the field of medical apparatus, and relates to a cutter for a uterus resection operation. The cuter comprises a cutter handle and a cutting knife installed on the cutter handle, and is characterized in that the cutting knife comprises a knife back portion and at least one lade portion extending out from the knife back portion towards an outer side for cutting a uterus, wherein the blade portion is spirally arranged along a central axis forming an included angle alpha with the vertical axis of the cutter handle, the included angle alpha is an obtuse angle. The cutter provided by the invention is reasonable in structure and convenient to operate. For the condition that a uterus body is too large to be removed easily, the cutter can efficiently cut up and remove the uterus body, greatly improves the operation efficiency and mitigates the pain of a patient.

Description

For the cutter of hysterectomy

Technical field

The present invention relates to a kind of surgical knife tool, be a kind of cutter for hysterectomy specifically, belong to medical instruments field.

Background technology

Hysterectomy approach has through abdomen, transvaginal and peritoneoscope etc., compares with the abdominal hysterectomy of classics, Vaginal hysterectomy and laparoscopically hysterectomy have wound little, recover the advantage such as fast, patient is acceptant.Simultaneously to there is surgical field of view little for Vaginal hysterectomy, exposes and operating difficulties, easily the shortcoming such as damage adjacent organ.Therefore, also derived some special equipments that match with Wicresoft uterectomy in recent years, the such as patent No. is 20,102,021 6262.9, and name is called the invention of cup type uterus lifter, can play good effect in operation process.At present relevant derivative apparatus mainly for be uterus and being separated of surrounding tissue, and normal appearance can not directly per vaginam be taken out because the palace body after separation is excessive clinically, and first to shred into the situation that fritter gets again, the time needed is long, the workload of doctor is large, effect is not good yet, easily encounters adjacent organ.

Summary of the invention

The object of this invention is to provide a kind of cutter for hysterectomy, can more efficiently, easily shred, take out palace body, greatly shorten operating time, alleviate patient's misery.

In order to achieve the above object, the present invention adopts following technical scheme: a kind of cutter for hysterectomy, comprise handle of a knife and be arranged on the cutting knife on described handle of a knife, it is characterized in that, at least one blade part for cutting uterus that described cutting knife comprises knife back portion and extended laterally by described knife back portion, described blade part along described handle of a knife vertical axes between central shaft helical form in angle α arrange, described angle α is obtuse angle.

Strip is cut into by spiral helicine cutting knife in the uterus be separated with surrounding tissue by this technical scheme, successfully takes out from vagina, cuts quicker, has greatly saved operating time.

As preferably, described blade part is at least two, forms longitudinal vertical passage leading to described handle of a knife direction between adjacent blade part.

The number of blade part determines the speed of cutting, and vertical passage plays guide effect, and point bar cut skids off along vertical passage, both can be derived by bar smoothly, and can improve again the efficiency of cutting.

As preferably, described blade forms one and breaks through top at the top of cutter, the top of described blade part accumulates a little on described breakthrough top.Be convenient to find the starting point of cutting fast.

As preferably, the spiral angle of described blade part is reduced gradually by top to described handle of a knife one end of cutter.

Spiral angle is large, and that cuts is fast, but angle is large, easily be wrapped on blade, be not easy to derive bar, spiral angle increases gradually along with deriving direction, complete in the upstream that angle is little and cut, continue subsequently thoroughly point to cut bar and derive along with vertical passage.

As preferably, the width of described vertical passage is increased gradually by top to described handle of a knife one end of cutter, ensures that bar is derived smoothly.

As preferably, the channel surface of described vertical passage is smooth arc, strengthens the bar cut and derives efficiency.

As preferably, described angle α is 120-135 °, handled easily.

As preferably, described blade part is 2-4, and blade part can affect very little cuts effect, uterus can be caused too much to be wrapped on blade, affect extraction efficiency.

As preferably, described cutting knife structure in the form of sheets, cut, derive effective.

As preferably, be provided with connecting neck portion between described handle of a knife and described cutting knife, coordinate the length of vagina, handled easily, can not cause suffering to patient again, and described cutting knife is arranged on described handle of a knife by described connecting neck portion.

By implementing technique scheme, the present invention has following beneficial effect: the present invention is rational in infrastructure, simple to operate, and for the situation that palace body not easily takes out comparatively greatly, the present invention can shred efficiently, take out palace body, substantially increase procedure efficiency, alleviate the misery of patient.

Accompanying drawing explanation

Accompanying drawing 1 is the structural representation of the embodiment of the present invention 1;

Accompanying drawing 2 is the structural representation of the embodiment of the present invention 2;

Accompanying drawing 3 is the structural representation of the embodiment of the present invention 3.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.

Embodiment 1:

Cutter as shown in Figure 1, for hysterectomy, comprise handle of a knife 1 and the cutting knife 2 being arranged on the lamellar on handle of a knife 1, two blade parts 22 for cutting uterus that cutting knife 2 comprises knife back portion 21 and extended laterally by knife back portion 21, blade part 22 along handle of a knife 1 vertical axes between central shaft helical form in angle α arrange, described angle α is obtuse angle, and the present embodiment is 135 °, and the spiral angle of blade part 22 is reduced to handle of a knife 1 one end gradually by the top of cutter; The vertical passage 23 that longitudinal channel surface leading to handle of a knife 1 direction is smooth arc is formed between adjacent blade part 22.Blade 2 forms one and breaks through top 24 at the top of cutter, the top of blade part 22 accumulates a little on breakthrough top 24.

Embodiment 2:

As shown in Figure 2 for the cutter of hysterectomy, comprise handle of a knife 1, be arranged on connecting neck portion on handle of a knife 2 and with connecting neck portion all-in-one-piece lamellar cutting knife 2, three blade parts 22 for cutting uterus that cutting knife 2 comprises knife back portion 21 and extended laterally by knife back portion 21, blade part 22 along handle of a knife 1 vertical axes between central shaft helical form in the angle α of 110 ° arrange, and the spiral angle of blade part 22 is reduced to handle of a knife 1 one end gradually by the top of cutter; Form longitudinal vertical passage 23 leading to handle of a knife 1 direction between adjacent blade part 22, its width is increased to handle of a knife 1 one end gradually by the top of cutter.Blade 2 forms one and breaks through top 24 at the top of cutter, the top of blade part 22 accumulates a little on breakthrough top 24.

Embodiment 3:

As shown in Figure 3 for the cutter of hysterectomy, comprise handle of a knife 1, be arranged on connecting neck portion on handle of a knife 2 and with connecting neck portion all-in-one-piece lamellar cutting knife 2, three blade parts 22 for cutting uterus that cutting knife 2 comprises knife back portion 21 and extended laterally by knife back portion 21, blade part 22 along handle of a knife 1 vertical axes between central shaft helical form in angle α arrange, angle α is 150 °, and the spiral angle of blade part 22 is reduced to handle of a knife 1 one end gradually by the top of cutter; Form the vertical passage 23 that longitudinal channel surface leading to handle of a knife 1 direction is smooth arc between adjacent blade part 22, its width is increased to handle of a knife 1 one end gradually by the top of cutter.Blade 2 forms one and breaks through top 24 at the top of cutter, the top of blade part 22 accumulates a little on breakthrough top 24.

During use, need coordinate operating forceps, one hold handle of a knife maintain cutter substantially motionless, another hands utilize operating forceps along cutting knife the hand of spiral rotate pull uterus, make uterus under the effect of blade part, be cut into strip, take out from vagina smoothly.Easy to use, greatly accelerate the taking-up speed in uterus, reduce the misery of patient.

Claims

1. for the cutter of hysterectomy, comprise handle of a knife (1) and be arranged on the cutting knife (2) on described handle of a knife (1), it is characterized in that, at least one blade part (22) for cutting uterus that described cutting knife (2) comprises knife back portion (21) and extended laterally by described knife back portion (21), described blade part (22) along described handle of a knife (1) vertical axes between central shaft helical form in angle α arrange, described angle α is obtuse angle.

2. according to claim 1 for the cutter of hysterectomy, it is characterized in that, described blade part (22) is at least two, forms longitudinal vertical passage (23) leading to described handle of a knife (1) direction between adjacent blade part (22).

3. according to claim 1 or 2 for the cutter of hysterectomy, it is characterized in that, described blade (2) formed at the top of cutter one break through top (24), the top of described blade part (22) accumulates a little described breakthrough top (24).

4. according to claim 2 for the cutter of hysterectomy, it is characterized in that, the spiral angle of described blade part (22) is reduced gradually by top to described handle of a knife (1) one end of cutter.

5. according to claim 3 for the cutter of hysterectomy, it is characterized in that, the width of described vertical passage (23) is increased gradually by top to described handle of a knife (1) one end of cutter.

6. according to claim 5 for the cutter of hysterectomy, it is characterized in that, the channel surface of described vertical passage (23) is smooth arc.

7. according to claim 1 for the cutter of hysterectomy, it is characterized in that, described angle α is 120-135 °.

8. according to claim 2 for the cutter of hysterectomy, it is characterized in that, described blade part (22) is 2-4.

9. according to claim 1 for the cutter of hysterectomy, it is characterized in that, described cutting knife (2) structure in the form of sheets.

10. according to claim 1 for the cutter of hysterectomy, it is characterized in that, be provided with connecting neck portion (3) between described handle of a knife (1) and described cutting knife (2), described cutting knife (2) is arranged on described handle of a knife (1) by described connecting neck portion (3).