CN203234800U

CN203234800U - Low trauma surgical knife

Info

Publication number: CN203234800U
Application number: CN 201320124547
Authority: CN
Inventors: 李建民; 朱青云
Original assignee: Kunshan Kersen Science and Technology Co Ltd
Priority date: 2013-03-19
Filing date: 2013-03-19
Publication date: 2013-10-16
Anticipated expiration: 2023-03-19

Abstract

The utility model discloses a low trauma surgical knife. The low trauma surgical knife comprises a knife blade, a strip-shaped knife handle and a knife rod, wherein a concave groove is formed in one end of the knife rod, the section of the strip-shaped knife handle is rectangular, one end of the strip-shaped knife handle is fixed inside the concave groove of the knife rod, the height of the knife blade is larger than that of the strip-shaped knife handle, a concave planar portion is arranged on the lateral surface of the other end of the strip-shaped knife handle, the position where the strip-shaped handle is connected with the concave planar portion is a stepped surface, the knife blade is welded to the concave planar portion of the strip-shaped knife handle, and the included angle between the knife edge of the knife blade and the length direction of the knife blade is 79-81 degrees. The low trauma surgical knife is high in accuracy, and is capable of improving treatment effect and reducing issue injury.

Description

The low-wound surgical knife

Technical field

This utility model relates to medical instruments field, relates in particular to a kind of low-wound surgical knife.

Background technology

Along with the development of medical skill, Minimally Invasive Surgery is little because of wound, pain light, recover the fast welcome that is subject to the patient.But because the restriction of equipment and condition, operation has very high requirement to the doctor.In the prior art, the scalpel that surgical clinical is used has small needle knife and coventional scalpel usually, and the small needle knife cutter head is narrow, the thin insufficient strength of cutter hub, handle of a knife is short and small violin-shaped in addition, is unfavorable for that cutter head regulates direction, in addition cutting and separating and do not reach therapeutic purposes; The general surgery cutter blade is roomy, and the normal tissue damage is large, is not suitable for doing Minimally Invasive Surgery.Therefore, how to design a kind of order of accuarcy high, can not cut off the meat fiber tissue, to pathological tissues in the body cut out wound little, go out insufficiency of blood, contact with air with intraluminal tissue without the large tracts of land wound, reduce and infect probability, become the direction that those of ordinary skills make great efforts.

Summary of the invention

This utility model provides a kind of low-wound surgical knife, and this low-wound surgical knife order of accuarcy is high, can improve therapeutic effect and can reduce tissue injury.

For achieving the above object, the technical solution adopted in the utility model is: a kind of low-wound surgical knife comprises: blade, bar shaped handle of a knife and knife bar; This knife bar one end has groove, and this bar shaped handle of a knife cross section is rectangle, and described bar shaped handle of a knife one end is fixed in the groove of described knife bar; The height of described blade is higher than the height of bar shaped handle of a knife; Have a concave plane section on the side of the described bar shaped handle of a knife other end, bar shaped handle of a knife and concave plane section junction are a step surface, and described blade is welded in the concave plane section of described bar shaped handle of a knife; The knife edge of described blade and blade lengths angular separation are 79 ~ 81 °.

Further improved technical scheme is as follows in the technique scheme:

1. as preferred, described knife bar cross section is circular.

2. as preferred, the diameter of described knife bar is 1.55 ~ 1.62 millimeters.

3. as preferred, the knife edge of described blade and blade lengths angular separation are 80 °.

Because technique scheme is used, this utility model compared with prior art has following advantages:

1, this utility model low-wound surgical knife, the length direction angle of the blade of its blade and blade is 79 ~ 81 °, has greatly improved the scalpel accuracy.

2, this utility model low-wound surgical knife comprises blade, bar shaped handle of a knife and knife bar; This knife bar one end has groove, and this bar shaped handle of a knife cross section is rectangle, and described bar shaped handle of a knife one end is fixed in the groove of described knife bar; The height of described blade is higher than the height of bar shaped handle of a knife, its order of accuarcy is high, can not cut off the meat fiber tissue, pathological tissues in the body is cut out wound little, go out insufficiency of blood, contact with air with intraluminal tissue without the large tracts of land wound, reduce and infect probability, need not to sew up, shorten greatly operating time, postoperative pain is light, recover fast, cicatrix is trickle or without cicatrix, be desirable surgical apparatus.

3, in this utility model low-wound surgical knife, its knife bar is circular, is conducive to Minimally Invasive Surgery cutter 360 ° of rotary manipulations in the scalpel assembly, has improved the working place of operation.

Description of drawings

Accompanying drawing 1 divides schematic diagram for this utility model low-wound surgical knife;

Accompanying drawing 2 is this utility model low-wound surgical knife front view;

Accompanying drawing 3 is the upward view of accompanying drawing 2.

In the above accompanying drawing: 1, blade; 2, bar shaped handle of a knife; 3, knife bar; 4, groove; 5, blade; 6, step surface; 7, concave plane section.

The specific embodiment

Below in conjunction with drawings and Examples this utility model is further described:

Embodiment 1: a kind of low-wound surgical knife, as shown in drawings, this scalpel is mainly used in the human abdominal cavity videoendoscopic surgery, the operation that utilizes peritoneoscope and related equipment thereof to carry out: use cold light source that illumination is provided, (diameter is 3 ~ 10mm) insertion intraperitoneal with lens of laparoscope, the image that uses the digital camera technology that lens of laparoscope is photographed conducts to the rear class signal processing system by optical fibers, and is presented on the dedicated monitor in real time.Then the doctor analyzes judgement by the image of shown patient's organ different angles on the monitor screen to patient's the state of an illness, carries out cutting operation with scalpel.

This scalpel comprises: blade 1, bar shaped handle of a knife 2 and knife bar 3; These knife bar 3 one ends have groove 4, and these bar shaped handle of a knife 2 cross sections are rectangle, and described bar shaped handle of a knife 2 one ends are fixed in the groove 4 of described knife bar 3; The height of described blade 1 is higher than the height of bar shaped handle of a knife 2; Have a concave plane section 7 on the side of described bar shaped handle of a knife 2 other ends, bar shaped handle of a knife 2 is a step surface 6 with concave plane section 7 junctions, and described blade 1 is welded in the concave plane section 7 of described bar shaped handle of a knife 2, and above-mentioned knife bar 3 cross sections are circular; The diameter of above-mentioned knife bar 3 is 1.57 millimeters; Blade 5 edges of described blade 1 and blade 1 length direction angle are 81 °.

Embodiment 2: a kind of low-wound surgical knife, this scalpel is mainly used in the human abdominal cavity videoendoscopic surgery, the operation that utilizes peritoneoscope and related equipment thereof to carry out: use cold light source that illumination is provided, (diameter is 3 ~ 10mm) insertion intraperitoneal with lens of laparoscope, the image that uses the digital camera technology that lens of laparoscope is photographed conducts to the rear class signal processing system by optical fibers, and is presented on the dedicated monitor in real time.Then the doctor analyzes judgement by the image of shown patient's organ different angles on the monitor screen to patient's the state of an illness, carries out cutting operation with scalpel.

This scalpel comprises: blade 1, bar shaped handle of a knife 2 and knife bar 3; These knife bar 3 one ends have groove 4, and these bar shaped handle of a knife 2 cross sections are rectangle, and described bar shaped handle of a knife 2 one ends are fixed in the groove 4 of described knife bar 3; The height of described blade 1 is higher than the height of bar shaped handle of a knife 2; Have a concave plane section 7 on the side of described bar shaped handle of a knife 2 other ends, bar shaped handle of a knife 2 is a step surface 6 with concave plane section 7 junctions, and described blade 1 is welded in the concave plane section 7 of described bar shaped handle of a knife 2, and above-mentioned knife bar 3 cross sections are circular; The diameter of above-mentioned knife bar 3 is 1.6 millimeters; Blade 5 edges of described blade 1 and blade 1 length direction angle are 79 °.

When adopting above-mentioned low-wound surgical knife, the length direction angle of the blade of its blade and blade is 79 ~ 81 °, has greatly improved the scalpel accuracy; Secondly, it comprises blade, bar shaped handle of a knife and knife bar; This knife bar one end has groove, and this bar shaped handle of a knife cross section is rectangle, and described bar shaped handle of a knife one end is fixed in the groove of described knife bar; The height of described blade is higher than the height of bar shaped handle of a knife, its order of accuarcy is high, can not cut off the meat fiber tissue, pathological tissues in the body is cut out wound little, go out insufficiency of blood, contact with air with intraluminal tissue without the large tracts of land wound, reduce and infect probability, need not to sew up, shorten greatly operating time, postoperative pain is light, recover fast, cicatrix is trickle or without cicatrix, be desirable surgical apparatus; Again, surgical operation is with in the scalpel, and its knife bar is circular, is conducive to Minimally Invasive Surgery cutter 360 ° of rotary manipulations in the scalpel assembly, has improved the working place of operation.

Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalences of doing according to this utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1. a low-wound surgical knife is characterized in that: comprising: blade (1), bar shaped handle of a knife (2) and knife bar (3); These knife bar (3) one ends have groove (4), and this bar shaped handle of a knife (2) cross section is rectangle, and described bar shaped handle of a knife (2) one ends are fixed in the groove (4) of described knife bar (3); The height of described blade (1) is higher than the height of bar shaped handle of a knife (2); Have a concave plane section (7) on the side of described bar shaped handle of a knife (2) other end, bar shaped handle of a knife (2) is a step surface (6) with concave plane section (7) junction, and described blade (1) is welded in the concave plane section (7) of described bar shaped handle of a knife (2); Blade (5) edge of described blade (1) and blade (1) length direction angle are 79 ~ 81 °.

2. low-wound surgical knife according to claim 1, it is characterized in that: blade (12) edge of described blade (1) and blade (1) length direction angle are 80 °.

3. low-wound surgical knife according to claim 1 and 2 is characterized in that: described knife bar (3) cross section is for circular.

4. low-wound surgical knife according to claim 1 and 2, it is characterized in that: the diameter of described knife bar (3) is 1.55 ~ 1.62 millimeters.