Nodule positioning puncture needle

Abstract

The utility model relates to the technical field of puncture needles, in particular to a nodule positioning puncture needle. Comprising a positioning needle, a connecting pipe arranged at the top of the positioning needle, a puncture needle arranged in the positioning needle, a connecting part arranged on one side of the puncture needle, a positioning line arranged in the positioning needle, a spiral spring arranged at the bottom of the positioning line and a buckle used for being buckled with the connecting pipe and the connecting part. When the operating table is used, the opening in the supporting disc and the opening in the supporting pipe are opened, the positioning needle penetrates through the opening in the supporting disc and the opening in the supporting pipe, then the three supporting pieces are rotated, the three supporting pieces stably support the positioning needle, the extension piece in the supporting piece close to the operating table platform is lengthened and attached to the operating table platform, and therefore the positioning needle can be effectively supported; the technical problems that when an existing puncture needle is obliquely placed on the chest, the top of a positioning needle has a certain weight, and the positioning needle is shifted due to hand loosening in the operation process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of puncture needles, in particular to a nodule positioning puncture needle. Background Art

[0002] At present, Chinese patent publication number: CN204600615U discloses a pulmonary nodule positioning puncture needle kit, including a hollow outer tube needle, an inner core needle, and an inner core push needle. The tail of the outer tube needle is matched with an outer tube needle base, the tail of the inner core needle is matched with a core needle base, and the tail of the inner core push needle is matched with a core needle base; the head of the inner core needle has a blade head, and the inner core needle can be inserted into the outer tube needle and fixed by the outer tube needle base and the core needle base. After fixing, the blade head of the inner core needle is exposed from the outer tube needle; The inner core push needle is a hollow tube structure and has no blade head on the head. It is used to push the positioning guide wire. The inner core push needle can be inserted into the outer tube needle, disclosing the existing general structure of the puncture needle. After the positioning needle locates the body, the user needs to operate and remove the card slot, and then move the puncture needle and the positioning wire with the operating tool. If the operation is performed directly above the human chest, a certain balance can be maintained. However, if it is placed obliquely on the chest, the top of the positioning needle has a certain weight. If the positioning needle is loosened during the operation, it will cause the positioning needle to shift, and the position of the positioning needle and the nodule needs to be re-determined. Utility Model Content

[0003] Therefore, in view of the above problems, the utility model proposes a nodule positioning puncture needle, which solves the technical problem that the existing puncture needle is placed obliquely on the chest, the top of the positioning needle has a certain weight, and the positioning needle is displaced when the hand is loosened during operation.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a nodule positioning puncture needle, comprising a positioning needle, a connecting tube arranged at the top of the positioning needle, a puncture needle arranged inside the positioning needle, a connecting part arranged on one side of the puncture needle, a positioning wire arranged inside the positioning needle, a spiral spring arranged at the bottom of the positioning wire, and a buckle for engaging with the connecting tube and the connecting part; a support tube is provided on the outside of the positioning needle, a support plate is fixedly provided at the bottom of the support tube, openings for the positioning needle to pass through are provided on the support plate and the support tube, three support plates are hingedly provided at the bottom of the support plate, and an extension plate is slidably connected inside the support plate.

[0005] Furthermore, a scale ring is provided on the outer side of the positioning pin.

[0006] Furthermore, the support tube is a hose.

[0007] Furthermore, the bottom of the support sheet is provided with a hole for the extension sheet to pass through, the surface of the support sheet is provided with a straight slot, the surface of the extension sheet is provided with a pressing sheet for sliding connection in the straight slot, and a compression spring is provided between the pressing sheet and the extension sheet.

[0008] Furthermore, the pressing piece is provided with convex parts on two lateral sides, and the support piece is provided with a groove for the convex parts to be inserted into the groove near one side of the pressing piece.

[0009] By adopting the above technical solution, the beneficial effects of the utility model are:

[0010] The nodule positioning puncture needle is provided with a support plate. After the positioning needle is positioned, the positioning needle is held with one hand to keep the positioning position fixed, and the two support plates close to the opening are pulled apart in opposite directions, the openings on the support plate and the support tube will open, the positioning needle is passed through the openings on the support plate and the support tube, and then the support plates are released. The support plate and the support tube will be sleeved on the outside of the positioning tube, and then the three support plates are rotated so that the three support plates can provide stable support for the positioning needle. When the human chest is in an inclined position, one of the support plates needs to be stretched to a longer distance before it can be supported to the operating table platform. The extension plate in a support plate close to the operating table platform is stretched and fitted to the operating table platform, so that effective support for the positioning needle can be achieved, which solves the technical problem that the existing puncture needle is placed obliquely on the chest, the top of the positioning needle has a certain weight, and the positioning needle is displaced due to loosening the hand during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the explosion state of the local structure of the utility model;

[0013] Figure 3 This is a front view schematic diagram of the support piece and the extension piece of the utility model in the exploded state;

[0014] Figure 4 It is a schematic diagram of the structure of the support piece and the extension piece of the utility model in the rear view of the explosion state. DETAILED DESCRIPTION

[0015] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0016] refer to Figures 1 to 4The present embodiment provides a nodule positioning puncture needle, comprising a positioning needle 1, a connecting tube 2 arranged at the top of the positioning needle 1, a puncture needle 3 arranged inside the positioning needle 1, a connecting part 4 arranged on one side of the puncture needle 3, a positioning line 5 arranged inside the positioning needle 1, a spiral spring 6 arranged at the bottom of the positioning line 5, and a buckle 7 for buckling with the connecting tube 2 and the connecting part 4. A support tube 8 is provided on the outside of the positioning needle 1, a support plate 8a is fixedly provided at the bottom of the support tube 8, an opening 9 for the positioning needle 1 to pass through is provided on the support plate 8a and the support tube 8, three support sheets 10 are hingedly provided at the bottom of the support plate 8a, an extension sheet 11 is slidably connected inside the support sheet 10, a scale ring 12 is provided on the outside of the positioning needle 1, and the scale ring facilitates the operator to control the moving distance of the positioning needle, and the support tube 8 is a hose to prevent the positioning needle from being unable to move left and right after being sleeved on the outside of the positioning needle.

[0017] Through the setting of the puncture needle, when in use, first pass the positioning needle through the body to the position where puncture is required, remove the buckle, push the puncture needle and the positioning wire out of the positioning needle, then the coil spring and the puncture needle penetrate into the lung nodule, and then pull the positioning needle and the puncture needle out of the body to achieve effective positioning. When the positioning wire is not needed, pull the positioning wire outward, the coil spring will straighten, and can be withdrawn from the body to facilitate puncture.

[0018] The bottom of the support sheet 10 is provided with a through hole 14 for the extension sheet 11 to pass through, the surface of the support sheet 10 is provided with a straight slot 15, the surface of the extension sheet 11 is provided with a pressing sheet 16 for sliding connection in the straight slot 15, and a compression spring 17 is provided between the pressing sheet 16 and the extension sheet 11.

[0019] When the distance of the extension piece needs to be adjusted, press the pressing piece down. After the pressing piece is no longer in contact with the inner side of the supporting piece, press and move the pressing piece down again. After moving to the specified position, release the pressing piece. Under the action of the compression spring, the pressing piece will fit the inner side of the supporting piece, thereby fixing the position of the extension piece, so that the extension piece can remain stable and fixed after the adjusted position.

[0020] The pressing piece 16 is provided with protrusions 18 on two lateral sides thereof, and the support piece 10 is provided with a groove 13 in the inner part thereof close to a side of the pressing piece 16 for the protrusions 18 to be inserted into.

[0021] The groove is set, wherein after pressing the pressing piece, the protrusions on both sides of the pressing piece leave the grooves in the supporting piece, and the pressing piece can move freely. After moving to the specified position, the compression spring pushes the pressing piece upward, and the protrusions on both sides of the pressing piece are inserted into the grooves in the supporting piece, thereby fixing the position of the extension piece, making the fixation more firm, and preventing the extension piece from shrinking into the supporting piece under the influence of external force after being pulled out.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0026] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A nodule localization puncture needle, characterized in that: The invention comprises a positioning needle (1), a connecting tube (2) arranged at the top of the positioning needle (1), a puncture needle (3) arranged inside the positioning needle (1), a connecting portion (4) arranged at one side of the puncture needle (3), a positioning line (5) arranged inside the positioning needle (1), a spiral spring (6) arranged at the bottom of the positioning line (5), and a buckle (7) for buckling with the connecting tube (2) and the connecting portion (4); a support tube (8) is arranged outside the positioning needle (1); a support plate (8a) is fixedly arranged at the bottom of the support tube (8); an opening (9) for the positioning needle (1) to pass through is arranged on the support plate (8a) and the support tube (8); three support plates (10) are hingedly arranged at the bottom of the support plate (8a); an extension plate (11) is slidably connected inside the support plate (10).

2. A nodule localization puncture needle according to claim 1, characterized in that: A scale ring (12) is provided on the outer side of the positioning needle (1).

3. The nodule localization puncture needle according to claim 1, characterized in that: The support tube (8) is a hose.

4. The nodule localization puncture needle according to claim 1, characterized in that: The bottom of the support sheet (10) is provided with a through hole (14) for the extension sheet (11) to pass through, the surface of the support sheet (10) is provided with a straight slot (15), the surface of the extension sheet (11) is provided with a pressing sheet (16) for sliding connection with the straight slot (15), and a compression spring (17) is provided between the pressing sheet (16) and the extension sheet (11).

5. A nodule localization puncture needle according to claim 4, characterized in that: The pressing piece (16) is provided with convex parts (18) on two lateral sides, and the support piece (10) is provided with a groove (13) for the convex part (18) to be inserted into the groove near one side of the pressing piece (16).

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