CN209091548U - A kind of scalpel for percutaneous surgery - Google Patents

Abstract

The utility model relates to technical field of medical equipment more particularly to a kind of scalpels for percutaneous surgery.The scalpel includes knife handle and the blade that is fixed on knife handle；The blade includes a free end, and the free end includes symmetrically arranged two cut surfaces, has a default angle between described two cut surfaces.Easily there is notch asymmetry problem in operation in only one cut surface of middle blade compared with the existing technology.The utility model provides a kind of blade, and the blade has symmetrically arranged two cut surfaces, can symmetrically cut the skin and subcutaneous deep fascia around positioning puncture needle, damage when reducing later period merging sting device or expanding channel to subcutaneous tissue.

Description

A kind of scalpel for percutaneous surgery

Technical field

This application involves field of medical device more particularly to a kind of scalpels for percutaneous surgery.

Background technique

In current daily life, aging of population is gradually aggravated, and the disease incidence of Thoracolumbar disk osteoporotic fracture increasingly mentions It rises, while some because the patients with thoracolumbar fracture caused by wound is increasing, therefore Percutaneous kyplasty and percutaneous vertebra Pedicle screw internal fixation gradually increases.

It usually needs to be positioned with pilot pin in previous surgical procedure, it is preoperative to extract pilot pin, then cut using sharp knife Skin and subcutaneous deep fascia are opened to be placed in sting device or expanding channel.

In the prior art, due to when traditional sharp knife is in incision skin and subcutaneous deep fascia because of blade itself It will cause skin and subcutaneous notch be asymmetric, a passivity can be caused to damage to tissue in subsequent merging sting device or expanding channel Wound.

Utility model content

The utility model provides a kind of scalpel for percutaneous surgery, to solve percutaneous surgery skin and subcutaneous notch Asymmetric problem.

To solve the above-mentioned problems, the utility model provides technical solution below:

A kind of scalpel for percutaneous surgery, the scalpel include knife handle and the blade that is fixed on the knife handle, The blade includes a free end, and the free end includes symmetrically arranged two cut surfaces, is had between described two cut surfaces There is a default angle.

Preferential, the blade is to be detachably connected with the knife handle.

Preferably, the blade has fixation hole, and the knife handle has corresponding fixing piece.

Preferential, the blade is additionally provided with a connecting pin opposite with the free end, and the connecting pin is obliquely installed, institute It states and is correspondingly provided with a link slot on knife handle.

Preferential, the knife handle is cylindrical body.

Preferential, the knife handle is additionally provided with positioning pinholes, and the positioning pinholes run through along the direction of the knife handle central axis It is arranged inside the knife handle.

Technical solution provided by the utility model include it is following the utility model has the advantages that

The utility model provides a kind of scalpel for percutaneous surgery.Scalpel has knife handle and is fixed on knife handle Blade, there are symmetrically arranged two cut surfaces in the free end of blade, and has certain angle between two cut surfaces, can be symmetrical The skin and subcutaneous deep fascia around puncture localization needle are cut, to skin when reducing later period merging sting device or expanding channel The damage of undertissue.Its structure is simple, easy to use, simple laborsaving, can quickly cut puncture localization needle periphery skin and Subcutaneous deep fascia.

Detailed description of the invention

It, below will be to attached drawing needed in the embodiment in order to illustrate more clearly of the technical solution of the utility model It is briefly described, it should be apparent that, for those of ordinary skills, in the premise of not making the creative labor property Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of blade structure schematic diagram for percutaneous surgery provided by the embodiment of the utility model；

Fig. 2 is a kind of Knife handle structure schematic diagram for percutaneous surgery provided by the embodiment of the utility model；

Fig. 3 is a kind of scalpel assembly structure diagram for percutaneous surgery provided by the embodiment of the utility model；

Description of symbols: 1, free end；2, fixation hole；3, connecting pin；4, fixing piece；5, link slot；6, hand holds slot； 7, positioning pinholes；8, blade；9, knife handle.

Specific embodiment

Referring to Fig. 1 and Fig. 3, shown is respectively the assembly structure diagram of the structural schematic diagram of knife blade and scalpel.

Scalpel provided in this embodiment includes knife handle 9 and the blade 8 that is fixed on knife handle 9.The blade 8 include one from By end 1, the free end 1 includes symmetrically arranged two cut surfaces, has a default angle between described two cut surfaces.

The blade free end 1 of scalpel provided in this embodiment includes symmetrically arranged two cut surfaces, two cut surfaces Between have a default angle.Default angle can be acute angle, right angle, obtuse angle, can according to need the suitable angle of selection.Institute Stating blade 8, there are two symmetrical cut surfaces, can cut the skin and subcutaneous deep fascia around positioning puncture needle, symmetrically to subtract Damage when few later period merging sting device or expanding channel to subcutaneous tissue.Its structure is simple, easy to use, simple laborsaving, The skin and subcutaneous deep fascia on puncture localization needle periphery can quickly be cut.

Scalpel provided in this embodiment, preferred connection type are to be detachably connected.The connection side of blade 8 and knife handle 9 Formula can there are two types of, connect into that an entirety is non-dismountable, and another kind is exactly blade 8 and knife handle 9 one is blade 8 and knife handle 9 It is detachably connected.When the 9 non-dismountable connection of blade 8 and knife handle, such scalpel is disposable surgical knife.However, disposable hand The use serious waste resource of art knife, pollution environment.The cross-infection in operation, doctor blade are necessary for primary again in order to prevent Property blade, however knife handle 9 can reuse.By way of being detachably connected, knife handle 9 and disposable blade 8 are assembled into Scalpel.The application of such scalpel not only can also be played to avoid the cross-infection problem in operation and economize on resources, protect The purpose in retaining ring border.

Scalpel provided in this embodiment, preferred blade section have fixation hole 2, and the knife handle 9 has and the blade 8 The corresponding fixing piece 4 of fixation hole 2.The fixation hole 2 can be the engraved structure of winebottle-shaped looks, and the fixing piece 4 is cylinder Body protrusion.The fixing piece 4 of the knife handle 9 be embedded in the blade 8 fixation hole 2 can fixed blade 8 and knife handle 9, prevent knife Piece 8 slides from knife handle 9.

In order to further fix knife handle 9 and blade 8, the present embodiment has also been proposed new fixed point.It is provided in this embodiment Scalpel, preferred 8 connecting pin 3 of blade are obliquely installed, and a link slot 5 is correspondingly provided on the knife handle.The connection of the knife handle 9 The thickness of slot 5 is smaller relative to the fixing piece 4 of the knife handle 9 and the knife handle.When fixed blade 8 and knife handle 9, first knife handle 9 Fixing piece 4 be embedded into the fixation hole 2 of blade 8 after, then tiltedly setting is cut in the connecting pin 3 of blade and is embedded into the link slot 5 of knife handle In.Both fixed points combine can preferably fixed blade 8 and knife handle 9, reduce blade 8 and knife handle 9 fall off it is several Rate prevents the generation of operation risk.

The assembling process of blade 8 and knife handle 9: a hand-held knife handle 9, the other hand clamp blade 8 with needle forceps (needle holder), The fixing piece 4 of knife handle is embedded in the fixation hole 2 of blade, then knife handle connection is inserted into blade connecting pin 3 with needle forceps (needle holder) Slot 5.

Referring to fig. 2, it show the structural schematic diagram of knife handle.

Scalpel provided in this embodiment, preferred knife handle 9 are cylindrical body.Knife handle shape in the application is different from existing Knife handle shape in technology, knife handle inner space in the prior art is narrow cannot to be arranged positioning pinholes inside it.The application In knife handle have 9 enough spaces, can be set positioning pinholes 7, while hand grip groove 6 is equipped in the middle part of knife handle.Hand grasps Slot 6 is formed according to human hands physiology configuration design.The cylindrical body knife handle 9 equipped with hand grip groove 6 easily grasps, easy to control Dynamics.

Scalpel provided in this embodiment, preferred knife handle 9 is interior to be equipped with positioning pinholes 7, and the positioning pinholes 7 are along the knife The direction of 9 central axis of handle is run through.Positioning puncture needle can be right under the premise of not pulling out puncture localization needle directly through pin hole 7 The incision surrounding skin and subcutaneous deep fascia of title.

Specific operation process is as follows in operation: firstly, knife blade 8 is connected with knife handle 9；Secondly, puncturing After the centrum for needing to perform the operation is accurately positioned in pilot pin, it is connect by positioning pinholes 7 with positioning puncture needle, is not pulling out Needle localization Surrounding skin and subcutaneous deep fascia are symmetrically cut under the premise of needle；Finally, merging sting device or expanding channel, to implement Operation.

Claims (6)

1. a kind of scalpel for percutaneous surgery, which is characterized in that the scalpel includes knife handle (9) and is fixed on the knife Blade (8) on handle (9), the blade (8) include a free end (1), and the free end (1) includes symmetrically arranged two and cuts Face has a default angle between described two cut surfaces.

2. scalpel as described in claim 1, which is characterized in that the blade (8) is detachably to connect with the knife handle (9) It connects.

3. scalpel as claimed in claim 2, which is characterized in that the blade (8) has fixation hole (2), on the knife handle (9) It is correspondingly provided with fixing piece (4).

4. scalpel as claimed in claim 3, which is characterized in that the blade (8) is additionally provided with opposite with the free end (1) Connecting pin (3), the connecting pin (3) is obliquely installed, and is correspondingly provided with a link slot (5) on the knife handle (9).

5. scalpel as described in claim 1, which is characterized in that the knife handle (9) is cylindrical body.

6. scalpel as claimed in claim 5, which is characterized in that the knife handle (9) is additionally provided with positioning pinholes (7), described fixed Position pin hole (7) is internal in the knife handle (9) through setting along the direction of the knife handle (9) central axis.