CN218247330U - Lung tumor positioning needle with buckle - Google Patents

Abstract

The utility model discloses a take lung tumor pilot pin of buckle, including push mechanism, needle file and set up the pjncture needle on the needle file, push mechanism includes the propelling movement pipe handle and arranges the propelling movement pipe in the pjncture needle in, and the needle file includes propelling movement passageway, and it is fixed with the propelling movement pipe handle that the propelling movement pipe runs through propelling movement passageway, lies in propelling movement passageway port department on the needle file and is provided with the adapter sleeve, is provided with the buckle structure that makes the propelling movement pipe handle obtain the screens in high-order department between propelling movement pipe handle and the adapter sleeve. The utility model discloses set up multiple buckle structure and fix propelling movement pipe handle and adapter sleeve, and fixed back propelling movement pipe handle separates each other with the adapter sleeve, has realized that each part position of this pilot pin keeps fixed.

Description

Lung tumor positioning needle with buckle

Technical Field

The utility model belongs to the technical field of location needle machinery technique and specifically relates to take lung tumour pilot pin of buckle.

Background

Clinically, the lung tiny focus needs preoperative positioning frequently to conveniently and accurately judge the resection range of lung tissues in the operation, common lung focus positioning methods mainly comprise puncture positioning hook positioning, puncture staining positioning, puncture nuclide positioning and the like, and existing positioning devices have respective technical defects: (1) The positioning hook is easy to cut peripheral blood vessels to cause bleeding, and the exact positions of the positioning hook and the tumor are difficult to determine through vision or touch in the operation; (2) Staining positioning stain easily infiltrates peripheral tissues to cause inaccurate positioning, and deep staining areas are difficult to find on the surface of the lung in the operation; (3) The nuclide material for nuclide positioning is easy to infiltrate the peripheral tissues, so that the positioning is inaccurate, and meanwhile, a plurality of instruments are required to be matched, and the operation is complex.

The pilot pin often includes the push mechanism of propelling movement pilot pin and the pjncture needle that is used for the puncture, the part is all made alone when manufacturing, when the hospital purchase uses, because the pilot pin sends into the patient internal through the pjncture needle to just can release the pilot pin inwards through push mechanism, so need guarantee the position of push mechanism and pjncture needle before the operation and keep the relatively stable state, if the pilot pin just exposes the pjncture needle outside before the operation, the pilot pin just can not be conveniently, use safely, and current pilot pin is inconvenient satisfies this demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the prior art and designing a lung tumor positioning needle with a buckle.

The utility model discloses a take lung tumor pilot pin of buckle, including push mechanism, needle file and set up the pjncture needle on the needle file, push mechanism includes propelling movement pipe handle and arranges the propelling movement pipe in the pjncture needle in, and the needle file includes the propelling movement passageway, and it is fixed with the propelling movement pipe handle that the propelling movement pipe runs through the propelling movement passageway, lies in propelling movement passageway port department on the needle file and is provided with the adapter sleeve, is provided with the buckle structure that makes the propelling movement pipe handle obtain the screens in the high-order department between propelling movement pipe handle and the adapter sleeve.

Further, buckle structure includes the buckle, and the buckle includes the screens chamber, with first opening, first restriction portion and the second restriction portion of screens chamber intercommunication, the adapter sleeve forms interference fit between first opening and the screens chamber, the needle file still includes first restriction face, the propelling movement pipe handle includes the second restriction face, first restriction portion is spacing with the cooperation of first restriction face, the cooperation of second restriction portion and second restriction face is spacing.

Furthermore, the inner wall that lies in first opening part on the buckle is provided with screens portion, screens portion and adapter sleeve cooperation screens.

Further, the buckle includes two mutual articulated cramping bodies, two cramping bodies all include handheld portion and clamping part, form the screens chamber between the clamping part of two cramping bodies, the upper end of two clamping parts forms first restriction portion respectively, the lower extreme of two clamping parts forms second restriction portion respectively, articulated portion between two cramping bodies installs the spring that makes automatic re-setting fold after the screens chamber struts, perhaps install the spring that makes automatic re-setting fold after the screens chamber struts between the handheld portion one end of two cramping bodies, perhaps install the spring that makes automatic re-setting fold after the screens chamber struts between the handheld portion other end of two cramping bodies.

Furthermore, the buckle is the elasticity buckle, and the elasticity buckle is gone up and is formed with two mutual symmetries and slope setting with one side that first opening is relative and hold the body.

Further, buckle structure includes the screw thread buckle, the screw thread buckle including the restriction chamber and with the second opening that restricts the chamber intercommunication, the inner wall that restricts the chamber is provided with first screw thread portion and annular restriction groove, the propelling movement pipe handle is arranged in the restriction intracavity through the second opening, the head of propelling movement pipe handle is corresponding spacing in the annular restriction inslot, be provided with second screw thread portion on the adapter sleeve outer wall, first screw thread portion and the mutual threaded connection of second screw thread portion.

Furthermore, a protection tube and a protection tube plug are arranged outside the puncture needle, and the protection tube plug is arranged inside the connection part of the protection tube and the needle seat.

Further, adapter sleeve top bilateral symmetry is provided with the screens arch, and the screens intracavity corresponds the bellied position of screens and opens there is the constant head tank, and the constant head tank is at screens intracavity symmetric distribution, and two constant head tanks of symmetry are interconnect not, and the constant head tank is used for preventing that push handle from taking place axial displacement.

Furthermore, friction lines are arranged on the outer wall of the head of the pushing pipe handle.

Furthermore, be provided with the locating piece on the buckle, be provided with the location on the needle file and cave in, the locating piece corresponds the location in the location is sunken, and its structural setting prevents that the buckle from taking place axial rotation.

The utility model discloses a take lung tumour pilot pin of buckle, through the push tube handle that sets up, the propelling movement corresponding pilot pin is fixed after guaranteeing that the pjncture needle punctures suitable position, before this pilot pin uses, the buckle structure is fixed propelling movement tube handle and adapter sleeve, and after fixing, propelling movement tube handle and adapter sleeve separate each other, when having realized that each part position of this pilot pin keeps stable fixed promptly, push tube handle and needle file still remain sufficient distance and be used for pushing out the pilot pin, thereby guarantee the convenience when using, the push mechanism is prevented from pushing out the pjncture needle in advance and influencing the use before using; and the push pipe handle cannot be pulled out through the limitation of the buckle structure.

Drawings

FIG. 1 is a schematic view of the overall structure;

FIG. 2 is a partial structural view in a state where the protective tube is removed;

fig. 3 is a schematic structural view at the connecting sleeve and the needle stand;

FIG. 4 is a partially cut-away schematic view of the positioning pin;

FIG. 5 is a schematic view of the first state of the buckle;

FIG. 6 is a cross-sectional view of a first embodiment of a latch with a detent;

FIG. 7 is a top view of the clasp of FIG. 6;

FIG. 8 is a cross-sectional view of the first condition of the latch engaging another detent;

FIG. 9 is a top view of the clasp of FIG. 8

Fig. 10 is a schematic structural view of the buckle matched with the connecting sleeve in the second condition;

fig. 11 is a top view of the buckle in a second condition in cooperation with the connection sleeve;

FIG. 12 is a top view of the clasp of FIG. 11;

fig. 13 is a schematic structural view of the connecting sleeve;

FIG. 14 is a schematic view of a detent groove in the detent cavity;

FIG. 15 is a schematic view of the positioning engagement between the locking protrusion on the connecting sleeve and the buckle;

FIG. 16 is a schematic view of the positioning block engaged with the positioning recess;

FIG. 17 is a schematic view of the structure of the screw buckle matched with the connecting sleeve;

FIG. 18 is a schematic view of a threaded fastener;

FIG. 19 is a schematic view of a snap-fit arrangement for mounting a compression spring;

FIG. 20 is a schematic view of a snap-fit arrangement for mounting a tension spring;

FIG. 21 is a schematic view (one) of the elastic buckle structure;

fig. 22 is a schematic view (two) of the elastic buckle structure.

In the figure: the connecting sleeve comprises a connecting sleeve 2, a protective tube 3, a needle seat 4, a first limiting surface 4a, a pushing tube handle 5, a second limiting surface 5a, a pushing part 6, a pushing tube 7, a puncture needle 8, a pushing channel 9, a buckle 10, a first limiting part 10a, a second limiting part 10c, a clamping body 11, a handheld part 1101, a clamping part 1102, a clamping cavity 12, a clamping part 13, a pushing head friction line 15, a clamping bulge 16, a positioning groove 17, a thread buckle 18 and a protective tube plug 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 12, the lung tumor positioning needle with a buckle described in this embodiment includes a pushing mechanism, a needle seat 4, and a puncture needle 8 disposed on the needle seat, the pushing mechanism includes a pushing tube handle 5 and a pushing tube 7 disposed in the puncture needle 8, the needle seat 4 includes a pushing channel 9, the pushing tube 7 penetrates through the pushing channel 9 and is fixed to the pushing tube handle 5, when in use, the puncture needle 8 penetrates into a patient to reach a predetermined position, the pushing tube handle 5 is pushed to push the pushing tube 7 to push out the positioning needle and then pull out the pushing tube 7, and the positioning needle is disposed in the patient for positioning;

it is specific, it is provided with adapter sleeve 2 to lie in propelling movement 9 port departments on needle file 4, be provided with the buckle structure that makes propelling movement pipe handle 5 obtain the screens in the high-order department between propelling movement pipe handle 5 and the adapter sleeve 2, pjncture needle 8 pierces the internal back of patient, adapter sleeve 2 makes propelling movement pipe handle 5 can not directly push into propelling movement 9 with the cooperation of buckle structure, thereby propelling movement pipe handle 5 directly pushes out the locating pin when preventing the operation when pjncture needle 8 has not yet arrived the locating point and causes the condition of positioning failure, simultaneously when this locating pin transportation, prevent that propelling movement pipe handle 5 from directly getting into propelling movement 9 because of collisions etc. and pushing out the locating pin, prevent to cause the unable use of locating pin, it can normal use to extract the buckle structure during use.

As shown in fig. 5-9, the above-mentioned buckle structure includes a buckle 10, the buckle 10 includes a clamping cavity 12, a first opening 10b communicated with the clamping cavity 12, a first limiting portion 10a and a second limiting portion 10c, as shown in fig. 5, the first limiting portion 10a is set as the bottom of the buckle 10, the second limiting portion 10c is set as the inner wall of a top limiting baffle of the buckle 10, in order to make the clamping effect of the push rod handle better, a clamping step can be formed on the inner wall of the clamping cavity 12, the clamping step holds the bottom surface of the head of the push tube handle 5, the connecting sleeve 2 forms an interference fit with the clamping cavity 12 through the first opening 10b, the installation is simple, the needle seat 4 further includes a first limiting surface 4a, the first limiting surface 4a is the top surface of the needle seat 4 in fig. 5, the push tube handle 5 includes a second limiting surface 5a, the second limiting surface 5a is the top surface of the push tube handle 5 in fig. 5, the first limiting surface 10a cooperates with the first limiting surface 4a second limiting surface 10c, the second limiting surface 5a cooperates with the second limiting surface 5a limiting surface, and prevents the push tube 5 from being pushed into the push tube handle 5, and the push tube from being directly used when the push rod is not pushed by the first limiting surface 5a, and the second limiting surface, and the pushing needle is not used; the inner wall of the buckle 10 at the first opening 10b is provided with a blocking part 13, the blocking part 13 is blocked by matching with the connecting sleeve 2, and when the blocking part 13 is used, the blocking part 13 can be a bulge (shown in fig. 6 and 7) which is integrally formed with the buckle 10 and faces the first opening 10b, or a blocking block (shown in fig. 8 and 9) arranged on the inner cavity of the blocking cavity 12, so that the stability of the interference fit formed between the connecting sleeve 2 and the blocking cavity 12 is improved, and the connecting sleeve 2 is prevented from falling out accidentally;

or the buckle 10 may include two clamping bodies 11 hinged to each other, as shown in fig. 10 to 12, each of the two clamping bodies 11 includes a hand-held portion 1101 and a clamping portion 1102, a clamping cavity 12 is formed between the clamping portions 1102 of the two clamping bodies 11, first limiting portions 10a are formed at upper ends of the two clamping portions 1102, second limiting portions 10c are formed at lower ends of the two clamping portions 1102, a spring for automatically returning and folding the clamping cavity 12 after being opened is installed at the hinged portion between the two clamping bodies 11, as shown in fig. 10 to 12, or a spring 20 for automatically returning and folding the clamping cavity 12 after being opened is installed between one ends of the hand-held portions 1101 of the two clamping bodies 11, as shown in fig. 20, or a spring 20 for automatically returning and folding the clamping cavity 12 after being opened is installed between the other ends of the hand-held portions 1101 of the two clamping bodies 11, as shown in fig. 19. After the buckle 10 is installed by pressing the hand-held part 1101 and then released, the spring makes the two clamping bodies 11 automatically clamp the connecting sleeve 2, and when the hand-held part 1101 is pressed again to directly remove the buckle 10, the buckle can be reused.

Or the buckle 10 is an elastic buckle, two mutually symmetrical and obliquely arranged handholds 1103 are formed on one side of the elastic buckle opposite to the first opening 10b, wherein the first limiting part 10b at the upper end of the buckle may be a limiting baffle plate sealed at the upper end of the clamping cavity, or two symmetrical and separately arranged limiting baffle plates. The two handholds are used for applying force to realize folding or unfolding so as to expand or reset the clamping cavity, the backward moving buckle 10 can be separated from the connecting sleeve 2 during expansion, the buckle 10 is sleeved on the connecting sleeve 2 during reset, and the push pipe handle 5 is limited by the second limiting part. The elastic buckle is made of a silicone material or a rubber material, please refer to fig. 21 and 22.

As another scheme of the snap structure, as shown in fig. 17 and 18, the snap structure comprises a threaded snap 18, the threaded snap 18 comprises a limiting cavity 180 and a second opening 183 communicated with the limiting cavity 180, the inner wall of the limiting cavity 180 is provided with a first threaded portion 181 and an annular limiting groove 182, the push pipe handle 5 is placed in the limiting cavity 180 through the second opening 183, the head of the push pipe handle 5 is correspondingly limited in the annular limiting groove 182, the outer wall of the connecting sleeve 2 is provided with a second threaded portion 21, and the first threaded portion 181 and the second threaded portion 21 are mutually in threaded connection. During the use, the screw thread buckle 18 can rotate for the downward displacement, after first screw thread portion 181 and second screw thread portion 21 break away from the connection, can separate propelling movement pipe handle and screw thread buckle 18 through second opening 183 effect, the external diameter of needle file 4 sets up to be unanimous with the external diameter of adapter sleeve 2 or the external diameter of adapter sleeve 2 is less than needle file 4.

Among the arbitrary buckle structure of aforesaid, 2 top both sides of adapter sleeve can the symmetry be provided with the screens arch 16, the position that corresponds the screens arch 16 in screens chamber 12 is opened there is the constant head tank 17, as shown in figure 13, 14 is shown, constant head tank 17 is the symmetric distribution in screens chamber 12, two constant head tanks 17 of symmetry are interconnect not, block spacingly at adapter sleeve 2, the protruding 16 joint of screens is in the constant head tank 17 that corresponds, because two constant head tanks 17 of symmetry are interconnect not, behind the protruding 16 joint of screens, the axial is spacing and unable rotation by constant head tank 15, thereby prevent that the propelling movement handle from taking place axial displacement.

The outside of pjncture needle 8 is provided with protection tube 3 and protection stopcock 19, and protection stopcock 19 sets up in the inside of the junction of protection tube 3 and needle file 4, and protection stopcock 19 is got rid of the back with protection tube 3 when using, and portable protection stopcock 19 plays the puncture sign effect that targets in place, makes things convenient for the doctor visual observation puncture to target in place, plays the fixed action when pjncture needle 8 transports simultaneously.

The outer wall of the head of the pushing tube handle 5 is provided with friction lines 15, and the friction lines 15 can increase the stability when the pushing tube handle 5 is held.

As shown in fig. 16, the locking block 101 is disposed on the buckle 10, the needle holder 4 is disposed with the positioning recess 41, and the locking block 101 is correspondingly positioned in the positioning recess 41, and is configured to prevent the buckle 10 from rotating axially.

In the implementation of the embodiment, the puncture needle 8 is punctured into the body of a patient to reach a preset position, the push tube handle 5 is pushed to push the push tube 7 out of the positioning needle, then the push tube 7 and the puncture needle 8 are pulled out, and the positioning needle is placed in the body of the patient for positioning; after the puncture needle 8 is pierced into the body of a patient, the connecting sleeve 2 is matched with the buckle structure, so that the pushing pipe handle 5 cannot be directly pushed into the pushing channel 9, the situation that the pushing pipe handle 5 directly pushes out the positioning needle when the puncture needle 8 does not reach a positioning point during operation so as to cause positioning failure is prevented, meanwhile, when the positioning needle is transported, the pushing pipe handle 5 is prevented from directly entering the pushing channel 9 due to collision and the like so as to push out the positioning needle, the positioning needle is prevented from being unusable, and the buckle structure can be pulled out during use so as to be normally used; the connecting sleeve 2 forms interference fit with the clamping cavity 12 through the first opening 10b, and is simple and convenient to mount; through the arrangement of the first limiting part 10a and the first limiting surface 4a for matching limiting and the second limiting part 10c and the second limiting surface 5a for matching limiting, the push pipe handle 5 is limited and cannot directly enter the push channel 9, so that the push pipe handle 5 is prevented from pushing the push pipe 7 to release the positioning needle when not in use; the clamping part 13 is arranged to increase the stability of the interference fit formed between the connecting sleeve 2 and the clamping cavity 12 and prevent the connecting sleeve 2 from falling out accidentally; the buckle 10 can also comprise two clamping bodies 11 which are hinged with each other, a spring which enables the clamping cavity 12 to automatically reset and fold after being opened is arranged on a hinged part between the two clamping bodies 11, the buckle 10 is loosened after being installed by pressing the handheld part 1101, the two clamping bodies 11 automatically clamp the connecting sleeve 2 by the spring, and the buckle 10 is directly taken down by pressing the handheld part 1101 during use, so that the buckle can be reused; in the above-mentioned buckle 10, also can be through the adapter sleeve 2 with buckle structure on set up first screw thread portion and the mutual threaded connection of second screw thread portion directly fix adapter sleeve 2 to guarantee buckle 10's normal use.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims (9)

1. The lung tumor positioning needle with the buckle comprises a pushing mechanism, a needle seat (4) and a puncture needle (8) arranged on the needle seat, wherein the pushing mechanism comprises a pushing pipe handle (5) and a pushing pipe (7) arranged in the puncture needle (8), the needle seat (4) comprises a pushing channel (9), the pushing pipe (7) penetrates through the pushing channel (9) and is fixed with the pushing pipe handle (5), and the lung tumor positioning needle is characterized in that a connecting sleeve (2) is arranged at the port of the pushing channel (9) on the needle seat (4), and a buckle structure which enables the pushing pipe handle (5) to be limited at a high position is arranged between the pushing pipe handle (5) and the connecting sleeve (2); a protective tube (3) is arranged outside the puncture needle (8);

the clamping structure comprises a clamp (10) and an annular limiting groove (182), the clamp (10) comprises a clamping cavity (12), a first opening (10 b) communicated with the clamping cavity (12), a first limiting part (10 a) and a second limiting part (10 c), the connecting sleeve (2) forms interference fit with the clamping cavity (12) through the first opening (10 b), the needle seat (4) further comprises a first limiting surface (4 a), the pushing pipe handle (5) comprises a second limiting surface (5 a), the first limiting part (10 a) is matched with the first limiting surface (4 a) for limiting, and the second limiting part (10 c) is matched with the second limiting surface (5 a) for limiting;

the head of the pushing pipe handle (5) is correspondingly limited in the annular limiting groove (182).

2. The lung tumor positioning needle with the buckle as recited in claim 1, wherein the inner wall of the buckle (10) at the first opening (10 b) is provided with a detent portion (13), and the detent portion (13) is engaged with the connecting sleeve (2) for detent.

3. The lung tumor positioning needle with the buckle as claimed in claim 2, wherein the buckle (10) comprises two clamping bodies (11) hinged to each other, each of the two clamping bodies (11) comprises a handheld portion (1101) and a clamping portion (1102), a clamping cavity (12) is formed between the clamping portions (1102) of the two clamping bodies (11), first limiting portions (10 a) are respectively formed at the upper ends of the two clamping portions (1102), second limiting portions (10 c) are respectively formed at the lower ends of the two clamping portions (1102), a spring for automatically returning and folding the clamping cavity (12) after the clamping cavity (12) is spread is installed at a hinged portion between the two clamping bodies (11), or a spring for automatically returning and folding the clamping cavity (12) after the clamping cavity (12) is spread is installed between one ends of the handheld portions (1101) of the two clamping bodies (11), or a spring for automatically returning and folding the clamping cavity (12) after the clamping cavity (12) is spread is installed between the other ends of the handheld portions (1101) of the two clamping bodies (11).

4. The lung tumor positioning needle with the buckle as claimed in claim 2, wherein the buckle (10) is an elastic buckle, and two mutually symmetrical and obliquely arranged handholds (1103) are formed on one side of the elastic buckle opposite to the first opening (10 b).

5. The lung tumor positioning needle with the buckle as recited in claim 1, wherein the buckle is a threaded buckle (18), the threaded buckle (18) comprises a limiting cavity (180) and a second opening (183) communicated with the limiting cavity (180), the inner wall of the limiting cavity (180) is provided with a first threaded portion (181), the push tube handle (5) is placed in the limiting cavity (180) through the second opening (183), the outer wall of the connecting sleeve (2) is provided with a second threaded portion (21), and the first threaded portion (181) and the second threaded portion (21) are in threaded connection with each other.

6. The lung tumor positioning needle with the buckle as claimed in claim 1, wherein a protective tube plug (19) is further arranged outside the puncture needle (8), and the protective tube plug (19) is arranged inside the joint of the protective tube (3) and the needle base (4).

7. The lung tumor positioning needle with the buckle as claimed in claim 1, wherein the clamping protrusions (16) are symmetrically arranged on two sides of the top of the connecting sleeve (2), positioning grooves (17) are formed in the clamping cavity (12) corresponding to the positions of the clamping protrusions (16), the positioning grooves (17) are symmetrically distributed in the clamping cavity (12), and the two symmetrical positioning grooves (17) are not connected with each other.

8. The buckled lung tumor positioning needle according to any one of claims 1-2 and 5-6, wherein the outer wall of the head of the pushing tube handle is provided with friction lines.

9. The lung tumor positioning needle with the buckle as claimed in claim 1, wherein the buckle (10) is provided with a positioning block (101), the needle base (4) is provided with a positioning recess (41), and the positioning block (101) is correspondingly positioned in the positioning recess (41).

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