CN202397558U

CN202397558U - Surgical needle-knife special for stenosing tendinitis

Info

Publication number: CN202397558U
Application number: CN201120561806XU
Authority: CN
Inventors: 窦彦军
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-08-29
Anticipated expiration: 2021-12-29

Abstract

The utility model belongs to the field of medical equipment and in particular relates to a surgical needle-knife special for stenosing tendinitis. The novel surgical needle-knife is characterized in that the needle body of the needle-knife has a bending shape; a blade vertical to a knife bar is arranged on one side near the needle head; and knife edges are arranged on the front side and the rear side respectively. The tendon sheath is incised through double-way cutting motion during the surgery, so that the time of the surgery is saved and the success ratio of the surgery is increased. The surgical needle-knife special for stenosing tendinitis comprises a handle and the knife bar, wherein the handle is arranged at the rear end of the knife bar; a knifepoint is arranged at the front end of the knife bar; the middle part of the knife bar is bended to form a bending part; the blade vertical to the knife bar is arranged on one side, near the knifepoint, of the knife bar and is triangular; the front side knife edge and the rear side knife edge are arranged on the front side and the rear side of the blade respectively; and the front side knife edge and the knife bar form a 45-degree included angle; and the rear side knife edge is vertical to the knife bar and is straight-line-shaped or inwards-concave-shaped. The surgical needle-knife special for stenosing tendinitis has the beneficial effects of simple structure and high success ratio.

Description

The special-purpose operation needle knife of a kind of de Quervain's disease

Technical field

This utility model relates to medical instruments field, relates in particular to the special-purpose operation needle knife of a kind of de Quervain's disease.

Background technology

De Quervain's disease is a clinical common diseases; Mainly be because the repeated friction of wound or tendon; Cause that the stndon sheath internal layer oozes out, hypertrophy, severe patient fiber adhesion, even form fibrous cartilage, become a fibrocartilaginous ring that band shape is narrow; Influence the normal activity of tendon, very the disease that can not in narrow stndon sheath, slide of person's tendon.Traditional treatment mainly is open surgery or adopts flat pin shovel percutaneous to cut the flat pin shovel of narrow employings such as stndon sheath and perform an operation; Hand function is affranchised; Operation process is long; The incidence rate of open operative complication is high, as: limited, the nerve injury of counting on one's fingers, cicatrix tenderness, infection of incisional wound or delayed union etc.The patient causes very big misery.

The utility model content

This utility model provides novel operation needle knife to the above-mentioned deficiency that prior art exists, and the needle body of pin cutter adopts curved shape; Simultaneously be provided with blade perpendicular to knife bar near syringe needle one side; Blade front side, rear side are provided with blade, can realize two-way cutting movement when performing an operation, and stndon sheath is cut; Practice thrift the time of operation, improved success rate of operation.

The purpose of this utility model is to realize through following technical scheme:

The special-purpose operation needle knife of a kind of de Quervain's disease comprises handle, knife bar, and said knife bar rear end is provided with handle; Said knife bar front end is provided with point of a knife; Said knife bar middle bent forms bending section, and said knife bar is provided with the blade perpendicular to knife bar near point of a knife one side; Said blade is triangular in shape, and the forward and backward both sides of said blade are respectively equipped with front side blade and rear side blade.

Said front side blade and knife bar are 45 degree angles.

Said rear side blade is linear or inside spill perpendicular to knife bar.

This utility model beneficial effect: simple in structure, success rate is high.

Description of drawings

Fig. 1 is the described operation needle knife structural representation of this utility model.

Fig. 2 is the described operation needle knife rear side of a this utility model blade rectilinear structure sketch map.

Fig. 3 is the inside spill structural representation of the described operation needle knife rear side of this utility model blade.

Among the figure:

1, hands handle; 2, knife bar; 3, point of a knife; 4, blade; 5, front side blade; 6, rear side blade; 7, spill; 8, bending section; 9, linear.

The specific embodiment

According to accompanying drawing and embodiment this utility model is done further explain below.

As shown in Figure 1, the special-purpose operation needle knife of the de Quervain's disease of this utility model is made simply, at first uses steel wire; Install handle 1 in the rear end, the middle part is converted into curved shape or circular-arc, and the angle of bending section 8 is generally 150 degree, its role is to make the knife bar 2 of pin cutter can be in the skin surface perk; Convenient operation, 8 length is generally 6 centimetres from handle 1 to bending section, and the front end of steel wire is a point of a knife 3, and point of a knife 3 generally is 3 centimetres to the length of bending section 8; The pin cutter of this structure can reduce resistance, reaches patient's disease sites fast, near point of a knife 3 one sides, vertically is provided with blade 4 at knife bar 2; Blade 4 be shaped as triangle, be similar to the shape of fin, be preferably right angled triangle, all there is blade the both sides, front and back of blade 4 just two limits on triangular blade top; Front side blade 5 is downward-sloping along knife bar 2 from the top of triangular blade 4, cross with knife bar 2, with the angle of knife bar 2 be 45 degree, when its role is to stretch into stndon sheath; Because inflammation arranged, at this moment stndon sheath and tendon very closely can utilize the front side blade 5 of inclination and the combination of point of a knife 3 to go deep into stndon sheath rapidly and accurately forward, non-slip and depart from; Front side blade 5 can also cut stndon sheath simultaneously, and like Fig. 2, shown in Figure 3, rear side blade 6 is a linear perpendicular to knife bar 2 vertically downward; In order to increase the effect of blade, rear side blade 6 also can be designed as inside spill 7, is similar to the shape of reaping hook; Its role is to the pin cutter when pulling back, once more stndon sheath is remained the coupling part perpendicular to the rectilinear edge of knife bar 2 or inflexed sickleshaped blade and cut, realize once success of operation; Practiced thrift operating time, especially front side blade 5 has been realized fast deeply and has been cut stndon sheath for the first time, at knife bar 2 when pulling back; Rear side blade 6 has realized that stndon sheath is remained the coupling part all to be cast aside, and has practiced thrift the time of operation, has improved success rate of operation.

Operation is carried out at Ultrasonography.Art district skin strict sterilization.With ultrasonic probe with 75% ethanol repeatedly wiping sterilization be placed on the pars affecta skin surface; Utilize 75% ethanol as couplant; Advise the movable finger of patient; Observe slip, the card pressure situation of tendon in stndon sheath, the major axis of will pop one's head in then places on the diseased region tendon longitudinal axis, in about 5 millimeters places, distally that metacarpophalangeal joints palmar, tendon harden as entry point.Anesthesia tailing edge flesh key y direction stings application on human skin, subcutaneous tissue at distal probe with point of a knife 3; Adjustment pin cutter and head angle are confirmed behind the position of tool tip point of a knife to be located to thrust stndon sheath on the edge of; Confirm that point of a knife pushes the front side blade 5 cut-away portions stndon sheaths that utilize pin cutter along the tendon surface to near-end with point of a knife after between tendon and the stndon sheath; After blade tip 3 reaches proximal edge with carrying on the pin cutter and pulling back to far-end; Utilize rear side blade 6 to cut stndon sheaths, make the most advanced and sophisticated whole process of blade be positioned at subcutaneous tissue, but will note making blade tip and skin to keep suitable distance in order to avoid incision skin.Extract the pin cutter, patient's active movement finger, ultrasonic observe tendon down and slide freely, do not have card and press after, finish operation.

Claims

1. the special-purpose operation needle knife of a de Quervain's disease, it is characterized in that: comprise handle (1), knife bar (2), said knife bar (2) rear end is provided with handle (1); Said knife bar (2) front end is provided with point of a knife (3); Said knife bar (2) middle bent forms bending section (8), and said knife bar (2) is provided with the blade (4) perpendicular to knife bar (2) near point of a knife (3) one sides; Said blade (4) is triangular in shape, and the forward and backward both sides of said blade (4) are respectively equipped with front side blade (5) and rear side blade (6).

2. the special-purpose operation needle knife of a kind of de Quervain's disease as claimed in claim 1 is characterized in that: said front side blade (5) is 45 degree angles with knife bar (2).

3. according to claim 1 or claim 2 the special-purpose operation needle knife of a kind of de Quervain's disease is characterized in that: said rear side blade (6) is linear (9) or inside spill (7) perpendicular to knife bar (2).