CN213030796U

CN213030796U - Pulmonary nodule positioning device

Info

Publication number: CN213030796U
Application number: CN202020849641.5U
Authority: CN
Inventors: 赵宏光; 王黎芳
Original assignee: Zhejiang Cancer Hospital
Current assignee: Zhejiang Cancer Hospital
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-04-23
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses a pulmonary nodule positioner, including the pjncture needle, the inner core, push rod and location steel wire, the front end of location steel wire is equipped with spiral helicine location portion, the rear end of pjncture needle is equipped with first needle file, the rear end of inner core is equipped with the second needle file, it leads to the groove to be equipped with first logical groove and second on the second needle file, location portion cover is established at the front end surface of inner core, the rear end of location steel wire is passed the second and is led to the groove and stretch out the second needle file, the cross sectional shape of push rod suits with the shape of first logical groove, the push rod passes through first logical groove and promotes location portion in getting. If the positioning steel wire slides outwards, the spiral positioning part is gradually opened, and the positioning steel wire can still be ensured to be positioned locally; the positioning part can ensure positioning, and the positioning steel wire can visually display the positioning position; compared with the existing barb, the positioning part for positioning the steel wire in the operation process is large in size and easy to touch, so that the positioning judgment is more accurate, and the surgical excision is facilitated.

Description

Pulmonary nodule positioning device

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a pulmonary nodule positioner.

Background

With the development of image diagnosis technology, early lung lesion discovery is achieved, and the pulmonary nodule detection rate requiring surgical treatment is easier. Clinically, the small nodes in various parts of the human body need to be located. The most common methods at present are wire-over-wire (Hook-wire) or coil-over-wire(s). The top end of the positioning steel wire is provided with a barb which can hook the nodular tissue. However, the positioning steel wire is smooth and has low friction, so that the steel wire can slip outwards. If the tissue has more fiber components, outward slippage can be prevented, however, the lung tissue is different from other tissues, and the fiber components of the lung tissue are less, so that the phenomenon of slippage of a positioning steel wire frequently occurs clinically, the tissue positioning is invalid, the pain of a patient is caused, and the risk of bleeding or pneumothorax exists. The spring ring is directly driven into the body by positioning the spring ring, so that the surface of the lung can not be seen, the positioning is not visual, and the thoracoscopic operation is inconvenient to touch.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a pulmonary nodule positioner.

The utility model provides a pulmonary nodule positioner, includes pjncture needle, inner core, push rod and location steel wire, the front end of location steel wire is equipped with spiral helicine location portion, the rear end of pjncture needle is equipped with first needle file, the rear end of inner core is equipped with the second needle file, it leads to groove with the second to be equipped with first logical groove on the second needle file, location portion cover is established the front end surface of inner core, the rear end of location steel wire passes the second logical groove stretches out the second needle file, the cross sectional shape of push rod with the shape of first logical groove suits, the push rod passes through first logical groove gets into promote forward in the pjncture needle location portion.

In the above preferred technical solution, the first through groove and the push rod are both in an unclosed circular ring shape, and the second through groove is disposed at a position where the first through groove is unclosed.

Above technical scheme is preferred, first logical inslot is equipped with detachable sealing washer.

Above technical scheme is preferred, be equipped with shoulder hole and draw-in groove on the first needle seat, the shoulder hole includes aperture and the macropore that sets gradually along the axial from the past to the back, locating of draw-in groove symmetry macroporous both sides.

Above technical scheme is preferred, the external diameter of second needle file equals macroporous aperture, the periphery of second needle file be equipped with the fixture block of draw-in groove joint.

Preferably, in the above technical solution, a sealing gasket is disposed on the surface of the front side of the second needle holder.

According to the preferable technical scheme, the diameter of the inner core is smaller than the inner diameter of the puncture needle, the positioning parts are distributed in a circular spiral mode, the outer circle sizes of the positioning parts are the same, the outer circle diameter of the positioning parts is smaller than the inner diameter of the puncture needle, and the inner circle diameter of the positioning parts is equal to the diameter of the inner core.

According to the preferable technical scheme, the outer surface of the puncture needle is provided with scales for marking the depth of the puncture needle penetrating into the body.

Above technical scheme is preferred, the surface of push rod is equipped with the scale that is used for the sign to push into the degree of depth.

The utility model has the advantages and positive effects that: the utility model provides a pulmonary nodule positioning device, which comprises a puncture needle, an inner core, a push rod and a positioning steel wire, wherein a positioning part is sleeved on the inner core and is jointly arranged in the puncture needle, and the positioning part is pushed to the pulmonary nodule by the push rod after puncture; if the positioning steel wire slides outwards, the spiral positioning part is gradually opened, and even if the positioning steel wire slides out for a longer distance, the positioning steel wire can still be ensured to be positioned locally; the positioning part can ensure positioning, and the positioning steel wire can visually display the positioning position; compared with the existing barb, the positioning part for positioning the steel wire in the operation process is large in size and easy to touch, so that the positioning judgment is more accurate, and the surgical excision is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a pulmonary nodule locating apparatus according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural view of a positioning steel wire according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a second needle holder according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a first needle holder according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a push rod according to an embodiment of the present invention.

Wherein: 1. puncturing needle; 2. an inner core; 3. a push rod; 4. positioning the steel wire; 5. a positioning part; 6. a first needle seat; 7. a second needle seat; 8. a first through groove; 9. a second through groove; 10. a stepped hole; 11. a card slot; 12. a clamping block; 13. and (4) calibration.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The present embodiment provides a pulmonary nodule positioning apparatus, as shown in fig. 1-6, comprising a puncture needle 1, an inner core 2, a push rod 3 and a positioning steel wire 4, wherein one end of the puncture needle 1, which is inserted into a patient, is a front end, and the other end is a rear end. The front end of location steel wire 4 is equipped with spiral helicine location portion 5, the rear end of pjncture needle 1 is equipped with first needle file 6, the rear end of inner core 2 is equipped with second needle file 7, the second needle file card is in on the first needle file, be equipped with first logical groove 8 and second through-groove 9 on the second needle file 7, location portion 5 cover is established the front end surface of inner core 2, the rear end of location steel wire 4 passes second through-groove 9 just stretches out second needle file 7, the cross sectional shape of push rod 3 with the shape of first logical groove 8 suits, push rod 3 passes through first logical groove 8 gets into promote in the pjncture needle 1 location portion 5, thereby the front end of push rod can contradict with the rear end of location portion and release the pjncture needle with the location portion. The push rod can not be pushed into too deep, otherwise the push rod is easy to prick into the lung, therefore, the outer surface of the push rod 3 is provided with a scale 13 for marking the push depth, and the push depth of the push rod is roughly judged through the scale.

Specifically, the cross-sectional shapes of the first through groove 8 and the push rod 3 are both in an unclosed circular ring shape, and the second through groove 9 is arranged at a position where the first through groove 8 is unclosed.

In order to guarantee the leakproofness of puncture in-process inner core and pjncture needle, reduce and take place pneumothorax phenomenon, be equipped with the detachable sealing washer in the first logical groove 8, in order to guarantee the leakproofness, the sealing washer size is a bit bigger than the size of first logical groove, and the sealing washer is the rubber material, inserts the sealing washer in first logical groove during the puncture, after the puncture, when needing to insert the push rod and release location portion, extract the sealing washer can.

Specifically, be equipped with shoulder hole 10 and draw-in groove 11 on the first needle seat 6, the shoulder hole includes aperture and the macropore that sets gradually along the axial from the past to the back, aperture and pjncture needle intercommunication, and in the inner core passed the aperture and got into the pjncture needle, draw-in groove 11 symmetry is located macroporous both sides. The external diameter of second needle file 7 equals macroporous aperture, the periphery of second needle file 7 be equipped with the fixture block 12 of draw-in groove 11 joint. And a sealing gasket is arranged on the front side surface of the second needle seat.

Optionally, the diameter of the inner core 2 is smaller than the inner diameter of the puncture needle 1, the positioning portions 5 are distributed in a circular spiral shape, the outer circle sizes of the positioning portions 5 are the same, the outer circle diameter of the positioning portions 5 is smaller than the inner diameter of the puncture needle 1, and the inner circle diameter of the positioning portions 5 is equal to the diameter of the inner core 2. The inner diameter of the push rod is slightly larger than or equal to the diameter of the inner core and smaller than the outer circle diameter of the positioning part.

Optionally, the outer surface of the puncture needle 1 is provided with a scale 13 for marking the depth of puncture into the body.

The working process of the embodiment: the inner core, the positioning steel wire, the sealing ring and the puncture needle are pre-installed components, the positioning part is sleeved on the outer surface of the front end of the inner core, the rear end of the positioning steel wire penetrates through the second through groove to extend out, the inner core, part of the positioning steel wire and the positioning part are installed in the puncture needle, the second needle seat is placed in the large hole of the first needle seat, and the clamping block is clamped with the clamping groove; the puncture needle is punctured into the body of a patient, the sealing ring is pulled out after the puncture needle punctures to a specified position, the push rod extends into the puncture needle along the first through groove of the second needle seat and the inner hole of the first needle seat, the front end of the push rod props against the rear end of the positioning part, and the positioning part is pushed out to the pulmonary nodule.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A pulmonary nodule positioning apparatus, comprising: including pjncture needle, inner core, push rod and location steel wire, the front end of location steel wire is equipped with spiral helicine location portion, the rear end of pjncture needle is equipped with first needle file, the rear end of inner core is equipped with the second needle file, it leads to the groove to be equipped with first logical groove and second on the second needle file, location portion cover is established the front end surface of inner core, the rear end of location steel wire passes the second leads to the groove and stretches out the second needle file, the cross sectional shape of push rod with the shape of first logical groove suits, the push rod passes through first logical groove gets into promote forward in the pjncture needle location portion.

2. The pulmonary nodule localization apparatus of claim 1, wherein: the cross-sectional shapes of the first through groove and the push rod are both in an unclosed circular ring shape, and the second through groove is arranged at the unclosed position of the first through groove.

3. The pulmonary nodule localization apparatus of claim 1, wherein: a detachable sealing ring is arranged in the first through groove.

4. The pulmonary nodule localization apparatus of claim 1, wherein: be equipped with shoulder hole and draw-in groove on the first needle seat, the shoulder hole includes aperture and the macropore that sets gradually along the axial from the past to the back, locating of draw-in groove symmetry macroporous both sides.

5. The pulmonary nodule localization apparatus of claim 4, wherein: the outer diameter of the second needle seat is equal to the aperture of the large hole, and clamping blocks clamped with the clamping grooves are arranged on the periphery of the second needle seat.

6. The pulmonary nodule localization apparatus of claim 5, wherein: and a sealing gasket is arranged on the surface of the front side of the second needle seat.

7. The pulmonary nodule localization apparatus of claim 1, wherein: the diameter of the inner core is smaller than the inner diameter of the puncture needle, the positioning parts are distributed in a circular spiral mode, the outer circle sizes of the positioning parts are the same, the outer circle diameter of the positioning parts is smaller than the inner diameter of the puncture needle, and the inner circle diameter of the positioning parts is equal to the diameter of the inner core.

8. The pulmonary nodule localization apparatus of claim 1, wherein: the outer surface of the puncture needle is provided with scales for marking the depth of the puncture needle penetrating into the body.

9. The pulmonary nodule localization apparatus of claim 1, wherein: the outer surface of the push rod is provided with scales for marking the pushing depth.