CN213098031U

CN213098031U - Lymph gland puncture needle

Info

Publication number: CN213098031U
Application number: CN202020757044.XU
Authority: CN
Inventors: 时芳; 朱天生
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-05-04
Anticipated expiration: 2030-05-09

Abstract

The utility model relates to the technical field of medical equipment, concretely relates to lymph gland pjncture needle, which comprises an outer shell body, the rectangle through-hole has been seted up to the bottom of shell body one side, sliding through hole has been seted up to the bottom of shell body. The utility model discloses in, be provided with guiding mechanism through one side at the shell, through pressing the movable plate, thereby make rack plate one remove, and then make the incomplete gear rotation with rack plate one meshing, and rack plate two downstream can be stirred in incomplete gear rotation, thereby make the needle tubing move down, and then make the syringe needle move down to puncture patient's lymph node position department, and utilize compression spring one to make and loosen movable plate and incomplete gear and reset behind the movable plate, thereby make and can deepen the puncture depth of syringe needle to patient's lymph node through pressing the movable plate repeatedly, and utilize the draw-in groove, the position of fixture block and compression spring pair syringe needle is injectd, at last through upwards twitching the core bar, thereby take patient's partial lymph node tissue out.

Description

Lymph gland puncture needle

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to lymph gland pjncture needle.

Background

Lymph nodes are distributed at each part of the whole body, the lymph nodes can be enlarged due to a plurality of reasons, such as infection, tuberculosis, hematopoietic system tumor, metastatic tumor and the like, the diagnosis of the diseases can be assisted by obtaining extract through lymph node puncture and using the extract to prepare a smear for cytological or bacteriological examination, the existing operation of puncturing lymph nodes uses a puncture needle which is a 10ml disinfection syringe with a No. 1 needle head, the puncture guide is carried out by using B ultrasonic, when the lymph node puncture is carried out by using the 10ml disinfection syringe with the No. 1 needle head, the volume of the lymph nodes is small, and if the puncture force of a doctor is too large, the puncture depth of the lymph node puncture needle is easy to be too deep, so that the injury to the human body of a patient is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that the lymph node puncture needle is easy to be too deep in puncture depth and hurt the human body of a patient, the lymph node puncture needle is provided.

The purpose of the utility model can be realized by the following technical scheme:

the lymph node puncture needle comprises an outer shell, wherein a rectangular through hole is formed in the bottom of one side of the outer shell, a sliding through hole is formed in the bottom of the outer shell, a first circular through hole is formed in the top of the outer shell, a plurality of clamping grooves are uniformly formed in the inner side wall of the outer shell, and puncture mechanisms are arranged inside the outer shell and a telescopic tube;

the puncture mechanism comprises a needle tube, a needle head is fixedly connected to the center of the bottom of the needle tube, a rubber piston is connected to the inside of the needle tube in a sliding mode, a core bar is fixedly connected to the center of the top of the rubber piston, the bottom of the core bar is slidably connected with a circular through hole I, a receiving block and a rack plate II are symmetrically and fixedly connected to the top of the outer side of the needle tube, a clamping block is connected to the inside of the receiving block in a sliding mode and clamped with a clamping groove in a corresponding position, two compression springs II are fixedly connected between one end of the clamping block and the inner side wall of the receiving block, and an adjusting mechanism is arranged at the position, corresponding to the rectangular;

the adjusting mechanism comprises a movable plate and a fixed plate, the movable plate is of a cuboid shell structure with two open ends, a first rack plate is fixedly connected at the middle position of the inner top surface of the movable plate, the fixed plate is of an L-shaped plate-shaped structure, the bottom of the outer side of the fixed plate is fixedly connected with the shell, two first compression springs are fixedly connected between the inner side wall of the movable plate and the inner side wall of the fixed plate, two connecting plates are fixedly connected at the two ends of the top of one side of the fixed plate, a rotating rod is rotatably connected between the two connecting plates, an incomplete gear is fixedly sleeved at the position, corresponding to the first rack plate, of the outer cylindrical surface of the rotating rod, and is meshed with a second rack plate, when in use, the bottom of the telescopic tube is attached to the position, needing to be punctured, of a patient, and then the incomplete gear engaged with the first rack plate rotates, the incomplete gear rotates to stir the second rack plate to move downwards, so that the needle tube moves downwards, the needle head moves downwards to puncture the lymph node position of a patient, after the moving plate is loosened, the moving plate is reset by using the first compression spring, the depth of the needle head for the lymph node of the patient is deepened by repeatedly pressing the moving plate, the downwards-moved needle tube drives the clamping block to move downwards, the clamping block is clamped with the clamping groove at the corresponding position by using the second compression spring, so that the position of the needle tube is limited, after the needle head moves to a proper position, the core rod is upwards pulled, so that partial lymph node tissues of the patient are extracted, and by using the lymph node puncture needle, the depth of puncture of a doctor during lymph node puncture is easier to adjust, and the too high force of the doctor during lymph node puncture is avoided, the condition that the lymph gland puncture needle is too deep to cause damage to the human body of a patient occurs.

The bottom of the moving plate is fixedly connected with a sliding block, the inner bottom surface of the fixed plate is provided with a sliding groove, the sliding block is in sliding connection with the sliding groove, and the sliding block and the sliding groove are used for limiting the moving plate.

Further, the bottom of the outer shell is fixedly connected with a telescopic pipe, the bottom of the telescopic pipe is provided with a second circular through hole, the needle head is shielded by the telescopic pipe, accidental injury is avoided, and the lymph node puncture needle is supported by the telescopic pipe when in use.

Further, the length of the outer shell is larger than that of the needle tube, and the length of the telescopic tube is larger than that of the needle head.

Further, the width of the first rack plate and the second rack plate is the same as the thickness of the incomplete gear, so that the width of the first rack plate and the second rack plate is more tightly meshed with the incomplete gear.

Further, the outer contour of the clamping block is the same as the inner contour of the clamping groove, and the vertical section of the clamping block is a right triangle.

The utility model has the advantages that:

1. the adjusting mechanism is arranged on one side of the outer shell, the rack plate I moves by pressing the moving plate, the incomplete gear meshed with the rack plate I rotates, the rack plate II is stirred to move downwards by the rotation of the incomplete gear, the needle tube moves downwards, the needle head moves downwards to puncture the lymph node position of a patient, the moving plate and the incomplete gear reset after the moving plate is loosened by the compression spring I, the puncture depth of the lymph node of the patient can be deepened by repeatedly pressing the moving plate, the position of the needle head is limited by the clamping groove, the clamping block and the compression spring, and finally the partial lymph node tissue of the patient is extracted by upwards pulling the core rod, so that the lymph node puncture depth of a doctor can be adjusted more easily by pressing the lymph node puncture needle, the condition that the depth of the lymph node puncture needle is too deep to cause injury to the human body of a patient due to overlarge strength of a doctor during lymph node puncture is avoided.

Drawings

The present invention will be further described with reference to the accompanying drawings.

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

FIG. 2 is a schematic view of the structure of the outer and the middle shells of the present invention;

FIG. 3 is a schematic structural view of the middle puncture mechanism of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of the adjusting mechanism of the present invention;

fig. 6 is a schematic view of the structure of the middle telescopic tube of the present invention.

In the figure: 100. an outer housing; 110. a rectangular through hole; 120. a slide through hole; 130. a first circular through hole; 140. a card slot; 200. a telescopic pipe; 210. a second circular through hole; 300. an adjustment mechanism; 310. moving the plate; 311. a slider; 320. a fixing plate; 321. a chute; 330. a first compression spring; 340. a first rack plate; 350. a connecting plate; 360. rotating the rod; 370. an incomplete gear; 400. a puncture mechanism; 410. a needle tube; 420. a needle head; 430. a rubber piston; 440. a core bar; 450. receiving the block; 460. a clamping block; 470. a second compression spring; 480. and a second rack plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 6, the lymph node puncture needle includes an outer casing 100, a rectangular through hole 110 is formed at the bottom of one side of the outer casing 100, a sliding through hole 120 is formed at the bottom of the outer casing 100, a circular through hole one 130 is formed at the top of the outer casing 100, a plurality of clamping grooves 140 are uniformly formed on the inner side wall of the outer casing 100, and a puncture mechanism 400 is arranged inside the outer casing 100 and the extension tube 200;

the puncture mechanism 400 comprises a needle tube 410, a needle head 420 is fixedly connected to the center of the bottom of the needle tube 410, a rubber piston 430 is slidably connected to the inside of the needle tube 410, a core rod 440 is fixedly connected to the center of the top of the rubber piston 430, the bottom of the core rod 440 is slidably connected with a first circular through hole 130, a receiving block 450 and a second rack plate 480 are symmetrically and fixedly connected to the top of the outer side of the needle tube 410, a fixture block 460 is slidably connected to the inside of the receiving block 450, the fixture block 460 is clamped with a clamping groove 140 at a corresponding position, two compression springs 470 are fixedly connected between one end of the fixture block 460 and the inner side wall of the receiving block 450, and an adjusting mechanism 300 is arranged at a position of the outer;

the adjusting mechanism 300 comprises a moving plate 310 and a fixed plate 320, the moving plate 310 is a cuboid shell structure with two open ends, a rack plate I340 is fixedly connected to the middle position of the inner top surface of the moving plate 310, the fixed plate 320 is an L-shaped plate structure, the bottom of the outer side of the fixed plate 320 is fixedly connected with the shell 100, two compression springs I330 are fixedly connected between the inner side wall of the moving plate 310 and the inner side wall of the fixed plate 320, connecting plates 350 are fixedly connected to the two ends of the top of one side of the fixed plate 320, a rotating rod 360 is rotatably connected between the two connecting plates 350, an incomplete gear 370 is fixedly sleeved at the position, corresponding to the rack plate I340, of the outer cylindrical surface of the rotating rod 360, the incomplete gear 370 is meshed with a rack plate II 480, when in use, the bottom of the telescopic tube 200 is attached to the position, which needs to be punctured, and further rotating the incomplete gear 370 engaged with the first rack plate 340, the incomplete gear 370 rotates to toggle the second rack plate 480 to move downwards, so that the needle tube 410 moves downwards, so that the needle 420 moves downwards to puncture the lymph node position of the patient, after the moving plate 310 is loosened, the moving plate 310 is reset by using the first compression spring 330, the moving plate 310 is repeatedly pressed to deepen the puncture depth of the needle 420 to the lymph node of the patient, the needle tube 410 moving downwards drives the fixture block 460 to move downwards, the fixture block 460 is clamped with the clamping groove 140 at the corresponding position by using the second compression spring 470, so that the position of the needle tube 410 is limited, after the needle 420 moves to a proper position, the core rod 440 is upwards pulled to draw out part of lymph node tissue of the patient, and through the lymph node puncture needle, the puncture depth of the puncture of a doctor during lymph node puncture is easier to adjust, the condition that the depth of the lymph node puncture needle is too deep to cause injury to the human body of a patient due to overlarge strength of a doctor during lymph node puncture is avoided.

The bottom of the moving plate 310 is fixedly connected with a sliding block 311, the inner bottom surface of the fixing plate 320 is provided with a sliding groove 321, the sliding block 311 is in sliding connection with the sliding groove 321, the moving plate 310 is limited by the sliding block 311 and the sliding groove 321, the bottom of the outer shell 100 is fixedly connected with a telescopic tube 200, the bottom of the telescopic tube 200 is provided with a circular through hole II 210, the needle head 420 is shielded by the telescopic tube 200, accidental injury is avoided, the lymph node puncture needle is supported by the telescopic tube 200 when in use, the length of the outer shell 100 is larger than that of the needle tube 410, and the length of the telescopic tube 200 is larger.

The widths of the first rack plate 340 and the second rack plate 480 are the same as the thickness of the incomplete gear 370, so that the widths of the first rack plate 340 and the second rack plate 480 are engaged with the incomplete gear 370 more tightly, the outer contour of the latch 460 is the same as the inner contour of the catch 140, and the vertical section of the latch 460 is a right triangle.

The inner diameter of the second circular through hole 210 is larger than the outer diameter of the needle 420 so that the needle 420 can penetrate through the second circular through hole 210 to perform lymph node puncture on the patient.

The working principle is as follows: when the lymph node puncture needle is used, the bottom of the extension tube 200 is attached to a position needing puncturing by a patient, the lymph node puncture needle is punctured and guided by B ultrasonic, the moving plate 310 is pressed, so that the rack plate I340 moves, the incomplete gear 370 meshed with the rack plate I340 rotates, the incomplete gear 370 rotates to stir the rack plate II 480 to move downwards, the needle tube 410 moves downwards, the needle head 420 moves downwards to puncture the lymph node position of the patient, after the moving plate 310 is loosened, the moving plate 310 is reset by the aid of the compression spring I330, the moving plate 310 is repeatedly pressed, so that the puncturing depth of the lymph node of the patient by the needle head 420 is deepened, the needle tube 410 moving downwards drives the fixture block 460 to move downwards, the fixture block 460 is clamped with the clamping groove 140 in the corresponding position by the compression spring II 470, and the position of the needle tube 410 is limited, after the needle head 420 is moved to a proper position, the core rod 440 is upwards drawn to draw out part of lymph node tissues of a patient, and the lymph node puncture needle enables the puncture depth of a doctor to be easily adjusted when the lymph node puncture is carried out, so that the condition that the lymph node puncture needle is too deep to cause injury to the human body of the patient due to too large force of the doctor when the lymph node puncture is carried out is avoided.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only, and various modifications, additions and substitutions as described for the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims

1. The lymph node puncture needle comprises an outer shell (100), and is characterized in that a rectangular through hole (110) is formed in the bottom of one side of the outer shell (100), a sliding through hole (120) is formed in the bottom of the outer shell (100), a first circular through hole (130) is formed in the top of the outer shell (100), a plurality of clamping grooves (140) are uniformly formed in the inner side wall of the outer shell (100), and puncture mechanisms (400) are arranged inside the outer shell (100) and a telescopic tube (200);

the puncture mechanism (400) comprises a needle tube (410), the central position of the bottom of the needle tube (410) is fixedly connected with a needle head (420), the interior of the needle tube (410) is connected with a rubber piston (430) in a sliding way, the center position of the top of the rubber piston (430) is fixedly connected with a core bar (440), the bottom of the core rod (440) is in sliding connection with the first circular through hole (130), the top of the outer side of the needle tube (410) is symmetrically and fixedly connected with a receiving block (450) and a second rack plate (480), a clamping block (460) is connected inside the receiving block (450) in a sliding manner, the clamping block (460) is clamped with the clamping groove (140) at the corresponding position, two compression springs II (470) are fixedly connected between one end of the clamping block (460) and the inner side wall of the receiving block (450), an adjusting mechanism (300) is arranged at the position of the outer shell (100) corresponding to the rectangular through hole (110);

the adjusting mechanism (300) comprises a moving plate (310) and a fixed plate (320), the movable plate (310) is of a cuboid shell structure with two open ends, a first rack plate (340) is fixedly connected at the middle position of the inner top surface of the movable plate (310), the fixing plate (320) is of an L-shaped plate-shaped structure, the bottom of the outer side of the fixing plate (320) is fixedly connected with the outer shell (100), two compression springs I (330) are fixedly connected between the inner side wall of the moving plate (310) and the inner side wall of the fixed plate (320), the two ends of the top of one side of the fixed plate (320) are fixedly connected with connecting plates (350), a rotating rod (360) is rotatably connected between the two connecting plates (350), the position department that dwang (360) outer cylinder face corresponds rack plate one (340) cup joints and is fixed with incomplete gear (370), and incomplete gear (370) and rack plate two (480) meshing.

2. The lymph node puncture needle according to claim 1, wherein a slide block (311) is fixedly connected to the bottom of the moving plate (310), a slide groove (321) is formed in the inner bottom surface of the fixed plate (320), and the slide block (311) is slidably connected with the slide groove (321).

3. The lymph node puncture needle according to claim 1, wherein the bottom of the outer casing (100) is fixedly connected with a telescopic tube (200), and the bottom of the telescopic tube (200) is provided with a second circular through hole (210).

4. A lymph node puncture needle according to claim 3, wherein the length of the outer casing (100) is longer than the length of the needle tube (410), and the length of the telescopic tube (200) is longer than the length of the needle head (420).

5. The lymph node puncture needle according to claim 1, wherein the width of the rack plate one (340) and the rack plate two (480) is the same as the thickness of the incomplete gear (370).

6. The lymph node puncture needle according to claim 1, wherein an outer contour of the cartridge (460) is the same as an inner contour of the catching groove (140), and a vertical section of the cartridge (460) is a right triangle.