CN209450624U

CN209450624U - Localised puncture external member with push rod

Info

Publication number: CN209450624U
Application number: CN201821219607.9U
Authority: CN
Inventors: 刘凤海
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-31
Filing date: 2018-07-31
Publication date: 2019-10-01
Anticipated expiration: 2028-07-31

Abstract

The localised puncture external member with push rod that the utility model relates to a kind of, including puncture sheath, push rod and positioning needle, the puncture sheath is equipped with axial pore, for carrying out human body puncture；The push rod is equipped with axial pore, and outer diameter is slightly less than the internal diameter with the puncture sheath, for being inserted into the puncture sheath, implements the push of positioning needle, its rear end is exposed at the outside of the puncture sheath；The positioning needle includes the positioning syringe needle of front end and is fixedly connected on the subsequent position line of the positioning syringe needle, the outer diameter of the positioning syringe needle is less than the internal diameter of the puncture sheath and is greater than the internal diameter of the push rod, for being inserted into the puncture sheath, the positioning syringe needle is located at before the push rod, the position line passes through the pore of the push rod, and its rear end extends to the outside of the push rod.The utility model is mainly used for the Needle localization of body inner disease foci tissue, and the accuracy and reliability of positioning is high, easy to operate.

Description

Localised puncture external member with push rod

Technical field

The localised puncture external member with push rod that the utility model relates to a kind of, is mainly used for the puncture of body inner disease foci tissue Positioning belongs to the field of medical instrument technology.

Background technique

In clinical position, the case where being frequently encountered early stage or need local or minimally invasive excision compared with little tumour.The art of lesion Prelocalization is particularly important, and positioning, which is not allowed will cause in lesion art, to be cut off not exclusively, or even omits lesion.

Currently, the positioning method that clinic is taken is usually thread-ligating therapy by taking tumor of breast as an example, i.e., puncture needle is together with band hangnail Position line reach lesion locations, remove puncture needle, position line is stayed in into lesion locations.There are problems: 1) position line is without fixation Device, it is not easy to operate；2) the impermeable X line of whole position line, front end is without special marking；3) position line is easy to fall off or loosens, because It to perform the operation as early as possible after this patient positioning, otherwise can cause position inaccurate because of the above reason.

Utility model content

In order to solve the above technical problems, the utility model provides a kind of localised puncture external member with push rod, to improve Accuracy, the reliability of positioning, facilitate operation.

The technical solution of the utility model is:

A kind of localised puncture external member with push rod comprising:

Puncture sheath, equipped with axial pore, for carrying out human body puncture；

Push rod, equipped with axial pore, outer diameter is slightly less than with the internal diameter of the puncture sheath to be formed between the two Be slidably matched gap, for being inserted into the puncture sheath, implements the push of positioning needle, its rear end is exposed at the outer of the puncture sheath Face；

It positions needle, positioning syringe needle including front end and is fixedly connected on the subsequent position line of the positioning syringe needle, it is described The outer diameter for positioning syringe needle is less than the internal diameter of the puncture sheath and is greater than the internal diameter of the push rod, for being inserted into the puncture sheath, The positioning syringe needle is located at before the push rod, and the position line passes through the pore of the push rod, and its rear end extends to The outside of the push rod.

Preferably, this external member is also provided with protector, and the protector uses clip structure, for positioning in push It is clipped in the push rod being exposed at outside the puncture sheath before needle, send maloperation to prevent thrust.

The positioning syringe needle is preferably metal needle.

The rear portion of the positioning syringe needle is preferably provided with several delavay raspberry herbs.

The position line can be various suitable flexible wires.

The position line can be the high molecular materials lines such as nylon wire.

The front end surface of the puncture sheath is preferably inclined-plane, for example, be in 30-45 DEG C of angle with axial direction (axis direction), Sheath point is consequently formed.

The rear end of the puncture sheath can be equipped with handling section, and the outer diameter of the handling section of the puncture sheath is preferably greater than its main body Partial outer diameter, is suitable for hand-held needs and volume is only advisable greatly.

The front end surface of the push rod can be for perpendicular to axial plane, and column in order to each position in axial direction The positioning syringe needle rear end of shape contacts, and the active force at each position is identical, guarantees along axial linear pushing.

The rear end of the push rod can be equipped with handling section, and the outer diameter of the handling section of the push rod is preferably greater than described to be worn The outer diameter of the outer diameter of the main part of sheath of sting and the handling section less than the puncture sheath, to facilitate operation.

The beneficial effects of the utility model are: can will be determined by puncture sheath, push rod and the mutual cooperation for positioning needle Position syringe needle is accurately sent to lesion locations, and the tissue of corresponding position is hooked by the delavay raspberry herb on positioning syringe needle, is effectively prevented from It positions syringe needle movement or is detached from；By using metal needle, positioning syringe needle position can be clearly showed that with detecting devices such as x-rays It sets；Sites positioning may be implemented in position line by being exposed at body surface, can extend to lesion along position line when operation Position facilitates surgical procedure and advantageously reduces surgical wound.

The utility model is suitable for most of parenchymal visceras, mammary gland, muscular soft tissues and biggish intrapulmonary soft tissue The preoperative Needle localization of lump.

Detailed description of the invention

Fig. 1 is the organigram of the utility model；

Fig. 2 is the organigram of the utility model puncture sheath；

Fig. 3 is the organigram of the utility model push rod；

Fig. 4 is the organigram of the utility model positioning needle.

Specific embodiment

The utility model is described further with reference to the accompanying drawing.

As shown in Figs 1-4, the localised puncture external member with push rod that the utility model relates to a kind of, generally can be disposably makes With mainly including puncture sheath 10, push rod 20, positioning needle 30 and the protector 40 for being clipped in push rod.

Wherein, the positioning needle is made of position line 33 and positioning syringe needle 31, and the positioning syringe needle uses metal needle, The rear portion 32 of metal needle has several metal barbs 34, and the front end of the flexibility position line is fixedly connected on the positioning syringe needle Behind.

The front end of the positioning syringe needle is solid hard metal material, and with needle point, the internal diameter of thickness and puncture sheath matches, It can be slided wherein after being inserted into the pore of puncture sheath, the rear portion even tail end for positioning syringe needle is equipped with multiple metal barbs, metal Hangnail can play good syringe needle fixed function.

The position line is usually radiopaque position line, can be suitable for medical high molecular material using nylon wire etc. Line.

The typically hollow tubular metal of the push rod, thickness is identical or similar as the metal needle, pushes away The pore of bar is sent to assent position line made of nylon allowable etc. from wherein swimmingly passing through.

Preferred ruler with a scale, usually can be the scale markings scribed on puncture sheath surface, is convenient in the puncture sheath Calculate paracentesis depth.

In practice, the puncture sheath can use the stylophore of 18G puncture needle, and correspondingly, the outer diameter of push rod should be worn with 18G The internal diameter of pricker stylophore matches, and the positioning syringe needle in the positioning needle assembly can use 18G puncture needle.

Protector usually can be typically sandwiched in from what puncture sheath rear portion was exposed and be pushed away using the plastic clamp for being suitable for pressing from both sides cylindrical body It send on bar, and close to the rear end of the puncture sheath, fixed and protective effect thus is played to push rod, prevents maloperation from making to push Bar Forward causes positioning syringe needle displacement.

The assembling of the utility model can be in a manner of are as follows: position line is passed through push rod, the rear end of position line is from push rod Rear end is stretched out, and positioning syringe needle is located at before push rod, and positioning syringe needle and push rod are inserted into puncture sheath together, makes to position syringe needle The front-end port of puncture sheath is abutted, the rear end of push rod is exposed from the front end of puncture sheath, and the clip that will act as protector is clipped in outside In the push rod of dew, prevent it from moving forward, can also be assembled using other assembling sequences.It can be after factory-assembled It is packed and is sterilized.

The utility model relates to position fixing process can be with are as follows:

1) image (ultrasound, x-ray or CT) positioning is carried out, lesion is searched；

2) under imaging monitor in punctured with puncture sheath；

3) when the tip of puncture sheath reaches lesion edge part, removal protector；

4) fixed puncture sheath, quickly pushes push rod, and positioning syringe needle is pushed out puncture sheath and is pierced into pathological tissues；

5) puncture sheath and push rod are pulled out, positions syringe needle and position line and stay in internal, the end of position line is exposed in vitro.

Position line is exposed in vitro convenient for preoperative body surface location, is reduced operative incision and wound, is conducive to post-operative recovery.Patient exists Metal head end is found in direction in art along position line, to be accurately positioned lesion accurate location, is precisely cut off or is treated.

Metal needle position is marked lesion locations, and the metal barb structure at syringe needle rear portion is harder, no It is easily-deformable, and fixation, not easily to fall off and displacement.

It is disclosed by the utility model it is each preferably with optional technological means, unless otherwise indicated and a preferred or optional skill Art means are that further limiting for another technological means is outer, can form several different technical solutions in any combination.

Claims

1. a kind of localised puncture external member with push rod, characterized by comprising:

Push rod, equipped with axial pore, outer diameter is slightly less than the internal diameter with the puncture sheath, for being inserted into the puncture sheath, Implement the push of positioning needle, its rear end is exposed at the outside of the puncture sheath；

It positions needle, positioning syringe needle including front end and is fixedly connected on the subsequent position line of the positioning syringe needle, the positioning The outer diameter of syringe needle is less than the internal diameter of the puncture sheath and is greater than the internal diameter of the push rod, described for being inserted into the puncture sheath Positioning syringe needle is located at before the push rod, and the position line passes through the pore of the push rod, and its rear end extends to described The outside of push rod,

The positioning syringe needle is metal needle, and the front end of the positioning syringe needle is solid hard metal material, has needle point, described fixed The rear portion of position syringe needle is equipped with several delavay raspberry herbs, is harder, on-deformable metal barb structure.

2. localised puncture external member as described in claim 1, it is characterised in that be additionally provided with protector, the protector uses clip Structure is clipped in the push rod being exposed at outside the puncture sheath, send maloperation to prevent thrust.

3. localised puncture external member as described in claim 1, it is characterised in that the position line is flexible wires.

4. localised puncture external member as claimed in claim 3, it is characterised in that the position line is high molecular material line.

5. localised puncture external member according to any one of claims 1-4, it is characterised in that the front end surface of the puncture sheath is Inclined-plane.

6. localised puncture external member as claimed in claim 5, it is characterised in that the rear end of the puncture sheath is equipped with handling section, described The outer diameter of the handling section of puncture sheath is greater than the outer diameter of its main part.

7. localised puncture external member according to any one of claims 1-4, it is characterised in that the front end surface of the push rod is Perpendicular to axial plane.

8. localised puncture external member as claimed in claim 7, it is characterised in that the rear end of the push rod is equipped with handling section, described The outer diameter of the handling section of push rod is greater than the outer diameter of the main part of the puncture sheath and is not more than the handling section of the puncture sheath Outer diameter.