CN210354843U

CN210354843U - Medical miniature scalpel

Info

Publication number: CN210354843U
Application number: CN201920812235.9U
Authority: CN
Inventors: 冷元曦
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-21
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to a scalpel technical field especially relates to a medical miniature scalpel. Including cutter body 2, handle of a knife 1 and cutting edge 3, its characterized in that: the knife body 2, the knife handle 1 and the cutting edge 3 are integrally formed, the knife body 2 is used for being inserted into a human body injury part, the knife body 2 is cylindrical, the triangular cutting edge 3 is arranged below the end part of the knife body 2, and the inclined parts on two sides of the cutting edge 3 are a front cutting edge 302 and a rear cutting edge 301 which are used for cutting respectively; two side surfaces of the knife handle 1 corresponding to the two side surfaces of the blade 3 are positioning planes 101. Minimally invasive soft tissue release treatment for stenosing tenosynovitis, peripheral nerve entrapment, traumatic adhesion disease, joint stiffness, and the like.

Description

Medical miniature scalpel

Technical Field

The utility model relates to a scalpel technical field especially relates to a medical miniature scalpel.

Background

In the field of orthopedics and rehabilitation medicine, diseases such as stenosing tenosynovitis, peripheral nerve entrapment syndrome, chronic injury adhesion diseases, joint stiffness, chronic strain and the like are quite wide and many, and after conservative treatment of the diseases is ineffective, surgical soft tissue loosening treatment is mostly adopted, so that the treatment is one of the most main surgical measures of the diseases and is also the mainstream of surgical treatment in recent years. The minimally invasive surgery can not be separated from a minimally invasive tool, and the existing tools for minimally invasive soft tissue loosening mainly comprise a small needle knife and an arthroscope. The latter is mainly used in the spine and large joints, and is not comparable. The former has the disadvantages that: the strength is not enough, the cutting edge is at the tail end, the one-time longitudinal loosening range is too narrow, more repeated actions are needed, and the soft tissue injury is greatly increased; the invention overcomes the defects of the small needle knife, the guide part is arranged outside, the transverse cutting and loosening are adopted, the repeated action is avoided to the maximum extent, and the micro-wound is precise; meanwhile, the advantage of small wound of the small needle knife is inherited, and the needle knife has wide practical space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, adapt to the actual needs and provide a medical miniature scalpel.

In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do: a medical micro scalpel comprises a scalpel body 2, a scalpel handle 1 and a cutting edge 3, wherein the scalpel body 2, the scalpel handle 1 and the cutting edge 3 are all integrally formed, the scalpel body 2 is used for being inserted into a human body injury part, the scalpel body 2 is cylindrical, the triangular cutting edge 3 is arranged at the end part of the scalpel body 2, and inclined parts on two sides of the cutting edge 3 are a front cutting edge 302 and a rear cutting edge 301 which are used for cutting respectively; two side surfaces of the knife handle 1 corresponding to the two side surfaces of the blade 3 are positioning surfaces 101.

The positioning surfaces 101 on the two sides of the knife handle 1 are planes, and the cutting edge 3 is arranged below the end part of the knife handle 1.

The upper side of the knife handle 1 is provided with a triangular groove, the inclined plane of the groove close to the knife body 2 is a pressure applying surface 102, and the upper end and the lower end of the pressure applying surface 102 are respectively an upper pressure applying point and a lower pressure applying point.

The positioning surfaces 101 on the two sides of the knife handle 1 are curved surfaces.

An arc-shaped second pressure surface 103 is arranged above the knife handle 1 on the side of the cutting edge 3.

The angle between the leading edge 302 and the trailing edge 301 is 100-150.

The diameter of the cutter body 2 is 1.5mm-2.5 mm.

The maximum width from the bottom of the cutter body 2 to the cutting edge 3 is 1 to 1.3 times of the diameter of the cutter body 2.

The beneficial effects of the utility model reside in that:

minimally invasive soft tissue release treatment for stenosing tenosynovitis, peripheral nerve entrapment, traumatic adhesion disease, joint stiffness, and the like.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic view of an embodiment of the present invention;

fig. 2 is a schematic view of an embodiment of the present invention.

Detailed Description

The invention will be further described with reference to the following figures and examples:

example one (see fig. 1):

the utility model discloses a medical miniature scalpel, including cutter body 2, handle of a knife 1 and cutting edge 3, cutter body 2, handle of a knife 1 and cutting edge 3 are integrated into one piece, cutter body 2 is for being inserted the human injury portion, cutter body 2 is cylindrical, and the tip of cutter body 2 is provided with triangle-shaped cutting edge 3, the rake on both sides of cutting edge 3 is respectively for the front blade 302 and the back blade 301 of cutting; two side surfaces of the knife handle 1 corresponding to the two side surfaces of the blade 3 are positioning surfaces 101. The positioning surface has the function of enabling the doctor to always determine the position of the blade and to easily control the blade.

The upper side of the knife handle 1 is provided with a triangular groove, the inclined plane of the groove close to the knife body 2 is a pressure applying surface 102, and the upper end and the lower end of the pressure applying surface 102 are respectively an upper pressure applying point and a lower pressure applying point. The action of the groove further determines the orientation of the blade and keeps the blade in line with the direction of the applied force at all times.

The angle between the leading edge 302 and the trailing edge 301 is 100-150.

The diameter of the cutter body 2 is 1.5mm-2.5 mm.

When the cutting instrument is used, the thumb and the middle finger clamp the positioning planes 101 on two sides, the index finger is placed at the groove, and during the operation, the cutting operation in multiple directions can be performed through the index finger, the thumb and the middle finger.

When the scalpel is used, the direction of the scalpel body which is wiped into a patient body is controlled through the direction of the guide part which is positioned outside the scalpel body, and the depth of the scalpel tip penetrating into tissues is mastered through the scale of the scalpel handle, so that the scalpel can be accurately positioned, and the precondition of minimally invasive release is provided. When the cutting and loosening are started, the finger uses the pressure to be vertical to the cutter body and points to the direction of the cutting edge, and meanwhile, the finger smoothly draws and slides outwards at a constant speed. Taking stenosing tenosynovitis of thumb as an example, the stenosing tenosynovitis can be loosened completely by one cutting, so that repeated actions are reduced to the maximum extent, and injuries are reduced. The diameter of the cylindrical cutter body is 1.5mm-2.5mm, and the maximum width from the back of the cutter body to the cutting edge is 1-1.3 times of the diameter of the cutter body. Therefore, the skin wound is 1.5-3.25mm, the wound is small, the skin does not need to be sutured, the healing is fast, no matter the skin incision or the in-vivo loosened part is minimally invasive, the repeated operation is not needed, and the use is convenient.

Example two (see fig. 2): the embodiment is basically the same as the first embodiment, except that the positioning surfaces 101 on two sides of the tool shank 1 are curved surfaces; an arc-shaped second pressure surface 103 is arranged below the knife handle 1 on the side of the cutting edge 3. The shape of the handle 1 of a scalpel used for a surgical method only requiring front and back cutting. One function of the second pressure surface 103 is to further orient the cutting edge while the index finger is slightly curved to rest on the second pressure surface 103 and is used by the middle finger to exert force against the thumb and the index finger to make fine directional adjustments as needed to cut back and forth.

The utility model discloses a use principle brief follows as follows:

taking stenosing tenosynovitis of the right thumb of an adult as an example, the operation process for loosening the proximal pulley of the thumb is as follows:

1 equipment preparation

Special medical equipment, a medical minimally invasive release scalpel (selecting a proper specification and ensuring sterility), general medical equipment, anesthetic, a 5ml syringe, a sterilizer and an outpatient operation bag.

2 procedure of operation

1) The patient lies on the operation bed, the right upper limb lies on one side of the operator on the operation table, the affected part of the thumb is locally infiltrated and anesthetized, and the operator is disinfected conventionally, provided with sterile gloves and laid with a sterile operation towel.

2) Order the palm of the patient to face upward, and fix the right thumb of the patient with the left thumb, the index finger and the middle finger of the operator.

3) Opening holes

Selecting a hole opening point: the right thumb palm median line and the position 2mm away from the proximal transverse striation hold the knife: the operator pinches and releases the scalpel handle of the minimally invasive scalpel with the thumb, the index finger and the middle finger of the right hand, the fingers are vertical to the scalpel body, and the wrist is arranged at the side of the blade.

Cutting a cutter point into holes: the scalpel point vertically penetrates into the space between the superficial fascia and the tendon sheath at the perforation point (after the skin is punctured, the incision can be completed by a little deep or shallow).

4) Feed cutter

The surgeon holds the scalpel guide with his right hand, pricks the skin, then gradually turns the scalpel guide over toward the tip of the thumb, and simultaneously lifts the skin around the hole upward and slowly extends into the rest of the blade (the handle can be fully extended into the affected area as required). Posture after completion of cutting feed: the surgical knife body and the plane of the palm side of the thumb form an included angle of 30 degrees, the plane of the knife handle of the surgical knife is always perpendicular to the side face of the palm of the thumb, the tip of the surgical knife points to the base of the affected finger, and the knife handle of the surgical knife points to the tip of the thumb. (different diseases or different sites)

5) Cutting and loosening

Pressurizing: the index finger of the hand holding the scalpel handle is pressed downwards with proper force;

cutting: the operator holds the posture of the right hand after the completion of the knife feeding, and applies downward pressure to gradually pull the scalpel in the fingertip direction for cutting.

If necessary, the above steps of "4)" and "5)" may be repeated.

The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a medical miniature scalpel, includes cutter body (2), handle of a knife (1) and cutting edge (3), its characterized in that: the knife body (2), the knife handle (1) and the cutting edge (3) are integrally formed, the knife body (2) is used for being inserted into a human body injury part, the knife body (2) is cylindrical, the triangular cutting edge (3) is arranged at the end part of the knife body (2), and the inclined parts at two sides of the cutting edge (3) are a front cutting edge (302) and a rear cutting edge (301) which are used for cutting respectively; two side surfaces of the knife handle (1) corresponding to the two side surfaces of the knife edge (3) are positioning surfaces (101).

2. The medical microsurgical knife in accordance with claim 1 wherein: the positioning surfaces (101) on the two sides of the knife handle (1) are planes, and the cutting edge (3) is arranged below the end part of the knife handle (1).

3. The medical microsurgical knife as claimed in claim 2, wherein: the cutter is characterized in that a triangular groove is formed in the upper side of the cutter handle (1), the inclined plane of the groove close to the cutter body (2) is a pressure applying surface (102), and the upper end and the lower end of the pressure applying surface (102) are respectively an upper pressure applying point and a lower pressure applying point.

4. The medical microsurgical knife in accordance with claim 1 wherein: the positioning surfaces (101) on the two sides of the knife handle (1) are curved surfaces.

5. The medical microsurgical knife in accordance with claim 4 wherein: and an arc-shaped second pressure applying surface (103) is arranged above the knife handle (1) at the side of the cutting edge (3).

6. The medical microsurgical knife in accordance with claim 1 wherein: the angle between the leading edge (302) and the trailing edge (301) is between 100 DEG and 150 deg.

7. The medical microsurgical knife in accordance with claim 1 wherein: the diameter of the cutter body (2) is 1.5mm-2.5 mm.

8. The medical microsurgical knife in accordance with claim 1 wherein: the maximum width from the bottom of the cutter body (2) to the cutting edge (3) is 1-1.3 times of the diameter of the cutter body (2).