CN208710000U - Small needle knife depthkeeping determines operation amplitude auxiliary body - Google Patents

Abstract

The utility model discloses a kind of small needle knife depthkeepings to determine operation amplitude auxiliary body, using carrying out assisting stable structural principle during operating with to small needle knife, and it is controlled with the piercing depth to small needle knife with operation amplitude as starting point, when use, small needle knife is successively passed through from spring and straight tube, extend the needle blade of small needle knife outside contact, the needle knife handle and spring of small needle knife are inconsistent, the block-like contact of arc is conducive to contact with skin surface, its operation amplitude can be controlled convenient for medical worker, and the extension elongation of needle blade is modified or controlled by the needle knife handle compressed spring of pushing small needle knife, the elastic force of spring can play the buffer function to puncture firmly, and then it can avoid overexertion or unstable situations such as causing the deep tissue and organ for piercing damage deep, to effectively increase small needle knife in the controllability of the movements such as removing With safety, the difference that can meet under complex situations uses needs；And have the characteristics that structure is simple, easy to use and practical.

Description

Small needle knife depthkeeping determines operation amplitude auxiliary body

Technical field

The utility model relates to medical apparatus technical field, specifically a kind of small needle knife depthkeeping determines operation amplitude auxiliary machine Structure.

Background technique

Small needle knife is a kind of clinically used surgical instruments, traditionally small needle knife, by needle knife handle, needle cutter hub, needle blade group At needle knife handle is in calabash shaped, and the flat mouth sword at needle point of a knife end can carry out removing of loosening, the related blood vessel mind pressed by card to tissue adhesion It is loosened through beam, the dysequilibrium of soft tissue and bone tissue is restored, and pain also releases therewith.

But the small needle knife of traditional technology exists in clinical position: due to the architectural characteristic of small needle knife itself, using small needle Knife carry out various peeling action when, it is higher to the operation level requirement of medical worker, need careful stabilization, can not amplitude it is excessive, Especially unskilled doctor or technician are even more bad control to operational depth and amplitude, and then are easy to appear scuffing vital tissue Such as blood vessel, nerve security risk；In addition, existing needle cutter hub can not effectively control the penetraction depth of needle blade, exactly operating The sense that falls through can be generated when cutting pathological tissues, control is at this moment easy to and does not live power and be pierced into needle blade to more deep position, and Operating experience medical worker abundant relies primarily on its experience and carries out operation control, therefore, it is impossible to make under meeting complex situations With needs.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide a kind of small needle knife depthkeeping, to determine operation amplitude auxiliary Mechanism is helped, using carrying out assisting stable structural principle during operating with to small needle knife, and passes through the thorn to small needle knife The control for entering depth and operation amplitude is starting point, to effectively improve the operability and safety that small needle knife uses, is met Different use under complex situations needs.

In order to achieve the above objectives, the technical solution of the utility model is as follows:

A kind of small needle knife depthkeeping determines operation amplitude auxiliary body, including contact, straight tube and spring；

The arc-shaped blocky or shoe of the contact is blocky, in order to adapt to the operation amplitude of small needle knife, in contact Heart district domain is provided with the perforation to match with straight tube outer diameter, and the straight tube has the cavity being adapted with small needle knife, the front end of straight tube It is fixedly connected in insertion perforation and with perforation, is equipped with annular slot, one end of the spring and the ring close to the rear end of straight tube The clamping of shape card slot, the other end of spring are extended axially outward along straight tube；

In use, the small needle knife is successively passed through from spring and straight tube, it is to be appreciated that across part be small needle knife Needle cutter hub and needle knife edge part, and the needle blade of small needle knife extends outside contact, the needle knife handle of small needle knife and the other end of spring It is inconsistent, and then constitute the Elastic Contact stress of spring.

Further, the contact is made by having plastic material, and is longitudinally provided with notch, the notch along contact From contact, wherein one end extends to the perforation.

Further, the contact can also be is made of silica gel material, and several through-holes are equipped on contact.

Further, graduation mark is axially arranged on the outer wall of the straight tube and along straight tube.

Further, the straight tube is made of plastic material.

Further, the front end of the straight tube uses with perforation and is adhesively fixed.

The utility model has the beneficial effects that

The utility model uses and carries out assisting stable structural principle, technical solution during operating with to small needle knife Including contact, straight tube and spring, in use, small needle knife is successively passed through from spring and straight tube, and the needle blade of small needle knife extends Out outside contact, the needle knife handle of small needle knife and the other end of spring are inconsistent, and then contact can be made in skin surface, arc block The contact of shape is conducive to contact with skin surface, its operation amplitude can be controlled convenient for medical worker, and by pushing small needle knife To be modified or controlled the extension elongation of needle blade, the elastic force of spring can be played to be made to puncturing buffering firmly needle knife handle compressed spring With, and then can avoid overexertion or unstable situations such as causing the deep tissue and organ for piercing damage deep, to effectively increase Small needle knife reduces the operation difficulty of small needle knife, can meet under complex situations in the controllability and safety of the movements such as removing It is different using needing；And have the characteristics that structure is simple, easy to use and practical.

Detailed description of the invention

Fig. 1 is the structural schematic diagram that the utility model small needle knife depthkeeping determines operation amplitude auxiliary body；

Fig. 2 is a kind of example structure schematic diagram of contact of the utility model；

Fig. 3 is the contact another kind example structure schematic diagram of the utility model；

Fig. 4 is the use state diagram that the utility model small needle knife depthkeeping determines operation amplitude auxiliary body.

Specific embodiment

It is practical to this below in conjunction with attached drawing for the purpose of this utility model, technical solution and advantage is more clearly understood It is novel to be described in further detail.

It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this reality The ordinary meaning understood with novel one of ordinary skill in the art.

In the description of the present application, it is to be understood that the orientation or positional relationship of the instructions such as term "front", "rear" is base In attached orientation or positional relationship shown in FIG. 1, be merely for convenience of describing the present invention and simplifying the description, rather than indicate or It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as Limitations of the present invention.

As shown in Figs 1-4, a kind of small needle knife depthkeeping determines operation amplitude auxiliary body, including contact 1, straight tube 2 and spring 3；

The arc-shaped bulk of contact is provided with and straight tube outer diameter for contacting with skin surface in the central area of contact The perforation 11 to match, the circumferential preferred of contact carry out round edge or root face processing, avoid that there are corners or corner angle to influence patient's Contact comfort；The straight tube has the cavity being adapted with small needle knife, and in order to passing through for small needle knife, straight tube is preferably by polymer Material is made, and is fixedly connected in the front end insertion perforation of straight tube and with perforation, is equipped with annular slot 21, institute close to the rear end of straight tube The one end and the annular slot for stating spring are clamped, and the other end of spring is extended axially outward along straight tube, the length of above-mentioned straight tube It can specifically be set according to the needle cutter hub length of small needle knife, to meet passing through or extending using needs for small needle knife；

In use, the front end of small needle knife is successively passed through from spring and straight tube, and the needle blade of small needle knife extends contact Outside, the needle knife handle of small needle knife and the other end of spring are inconsistent, and then contact can be made in skin surface, by pushing small needle To be modified or controlled the extension elongation of needle blade, the elastic force of spring may also function as to puncturing firmly the needle knife handle compressed spring of knife Buffer function, and then can avoid overexertion or unstable situations such as causing the deep tissue and organ for piercing damage deep, meanwhile, arc Block-like contact can be conducive to contact with skin surface, the operation amplitude of small needle knife easily be controlled convenient for medical worker, thus effectively Small needle knife is improved in the controllability and safety of the movements such as removing.

A kind of embodiment of contact

As shown in Fig. 2, contact is made by having plastic material as a kind of preferred technical solution, and in other words, touching There is head certain plastic deformation or extension ability to contact in use conducive to contact with skin surface, and effectively improving makes With comfort, meanwhile, the arc degree of contact can also be adjusted by being bent or stretching contact, and then meet different concave-convex degree Skin surface contact is easy to use using needs；It is preferred that be longitudinally provided with notch 1a along contact, the notch is from contact wherein one end The perforation is extended to, a deep v-shaped gap or crack are preferably comprised, and then can both be convenient for the dismounting of straight tube, reduces contact Structural tension can also facilitate through the situation near notch observation skin incision, such as bleeding, extravasated blood etc..

Another embodiment of contact

As shown in figure 3, contact can also be to be made of silica gel material, according to medicine as a kind of preferred technical solution With the health or health characteristic of material, using hardness partially in the hard above medical solid silicone, silicon rubber has good biology Compatibility, it is nonirritant to tissue, non-toxic, few without allergic reaction, body rejection, it is connect with body fluid and tissue It is able to maintain its original elasticity and pliability during touching, is not degraded, securely and reliably, and Reusability after can sterilizing；It is preferred that Several through-hole 1b are equipped on contact, setting through-hole can also facilitate through notch observation convenient for making to be oppressed skin permeability Situation near skin incision, it is similar with the first above-mentioned embodiment function.

As a kind of preferred technical solution, graduation mark 22 is axially arranged on the outer wall of the straight tube and along straight tube, small In needle knife use process, the development length of needle blade can be accurately controlled by graduation mark, further decreases the operation of medical worker Difficulty, use are safe.

As a kind of preferred technical solution, the front end of straight tube, using being adhesively fixed, selects bonding way can be just with perforation In being manufactured, other conventional mechanical technological means can also be used and fix, such as snap fit, engaging is set in the front end of straight tube Card slot portion is arranged in perforation, is matched by holding section with card slot portion to achieve a fixed connection for portion；Thermal process for another example is led to High temperature melt is crossed, keeps its molten fixed fixed；Certainly, mold manufacture also can be used, be integrally formed straight tube and contact, it specifically can basis The objective factors such as the manufacturing, cost control are specifically set.

Above explanation and examples are merely exemplary, does not constitute any restrictions to the scope of the utility model.This Field technical staff should be understood that can be to utility model technical side under the spirit and scope without departing from the utility model The details and form of case are modified or are replaced, but these modifications and replacement are each fallen in the protection scope of the utility model.

Claims (6)

1. a kind of small needle knife depthkeeping determines operation amplitude auxiliary body, it is characterised in that: including contact (1), straight tube (2) and spring (3)；

The arc-shaped bulk of contact is provided with the perforation (11) to match with straight tube outer diameter in the central area of contact, described straight Managing has the cavity being adapted with small needle knife (4), is fixedly connected in the front end insertion perforation of straight tube and with perforation, close to straight tube Rear end is equipped with annular slot (21), and one end of the spring and the annular slot are clamped, and the other end of spring is along straight tube axial direction Extend outwardly；

In use, the small needle knife is successively passed through from spring and straight tube, and the needle blade of small needle knife extends outside contact, small needle knife Needle knife handle and spring the other end it is inconsistent.

2. small needle knife depthkeeping according to claim 1 determines operation amplitude auxiliary body, it is characterised in that: the contact is by having Plastic material is made, and notch (1a) is longitudinally provided with along contact, the notch from contact wherein one end extend to it is described Perforation.

3. small needle knife depthkeeping according to claim 1 determines operation amplitude auxiliary body, it is characterised in that: the contact may be used also To be made of silica gel material, and several through-holes (1b) is equipped on contact.

4. small needle knife depthkeeping according to claim 1 determines operation amplitude auxiliary body, it is characterised in that: outside the straight tube Graduation mark (22) are axially arranged on wall and along straight tube.

5. small needle knife depthkeeping according to claim 1 determines operation amplitude auxiliary body, it is characterised in that: the straight tube is by moulding Material is made.

6. small needle knife depthkeeping according to claim 1 determines operation amplitude auxiliary body, it is characterised in that: before the straight tube End uses with perforation and is adhesively fixed.