CN114305604A

CN114305604A - Safety injection puncture instrument

Info

Publication number: CN114305604A
Application number: CN202111479079.7A
Authority: CN
Inventors: 刘辉
Original assignee: JIANGSU KANGBAO MEDICAL EQUIPMENT CO Ltd
Current assignee: JIANGSU KANGBAO MEDICAL EQUIPMENT CO Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-04-12

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a safe injection puncture instrument which comprises an injector, a puncture needle and a mounting piece, wherein the injector is communicated with the puncture needle and is positioned on the right side of the mounting piece, two vertical plates are fixed on the top of the mounting piece, and a driving shaft and a driven shaft are rotatably connected between the two vertical plates through bearings. According to the invention, through arranging the first clamping block, the second clamping block, the one-way threaded rod, the injection cylinder and the clamping mechanism, the movement of the core rod in the injector can be automatically controlled according to the needs, so that the medicine injection or the effusion extraction can be automatically carried out after the puncture is finished, the risk of the puncture operation is reduced, and the potential safety hazard is reduced.

Description

Safety injection puncture instrument

Technical Field

The invention relates to the technical field of medical instruments, in particular to a safe injection puncture instrument.

Background

The puncture is a medical operation term, which is a technology for diagnosing or treating by puncturing a puncture needle into a body cavity to extract secretion for testing, injecting gas or contrast medium into the body cavity for radiographic examination, or injecting medicine into the body cavity, the puncture aims at blood sampling test, blood transfusion, fluid infusion and vessel implantation for angiography, and in the diagnosis and treatment process of a patient with a heart disease, a pericardial puncture operation is often needed to extract inflammatory liquid in the pericardium to relieve the compression of the heart, or antibiotics are injected into the pericardium for treatment.

The publication number is: in the chinese invention of CN112716572A, the puncture instrument device for cardiac surgery comprises a positioning ring; the adjusting structure comprises an adjusting groove, a sliding block and an extrusion block; the propelling structure comprises an upright post, a sliding chute, a lower fixing column and an upper fixing column; the fixing structure comprises a fixing arm, an adjusting arm, a rotating shaft and a limiting tooth; the puncture device for the cardiac surgery has the advantages of fixing a puncture point and guiding a needle to be inserted, after the puncture needle is inserted into a patient, medical staff are required to manually operate the syringe to extract or inject, and then the syringe and the puncture needle are easily deviated, so that the success rate of the surgery is influenced, the condition of the patient is easily influenced, and certain potential safety hazards exist, so that the puncture device for the cardiac surgery is provided for solving the problem.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a safe injection puncture instrument, which solves the problems in the background technology.

(II) technical scheme

The invention specifically adopts the following technical scheme for realizing the purpose:

a safe injection puncture instrument comprises an injector, a puncture needle and a mounting part, wherein the injector is communicated with the puncture needle and is positioned on the right side of the mounting part, two vertical plates are fixed on the top of the mounting part, a driving shaft and a driven shaft are rotatably connected between the two vertical plates through bearings, one end of the driven shaft penetrates through the side walls of the adjacent vertical plates and is provided with a first U-shaped plate, a puncture cylinder is fixed on the top of the first U-shaped plate, the output end of the puncture cylinder is fixedly connected with an L-shaped plate, the L-shaped plate is slidably connected in the first U-shaped plate, a first clamping block is fixed on one side wall of the L-shaped plate through four fixing columns, limiting rods are symmetrically fixed on one side wall of the first clamping block, second clamping blocks are slidably connected on the two limiting rods, and the first clamping block and the second clamping block are in close contact with the surface of the injector, the side wall of second clamp splice is seted up threaded hole, and threaded hole female connection has a one-way threaded rod, the one end of one-way threaded rod passes through the bearing and rotates the lateral wall of connecting at first clamp splice, the other end of one-way threaded rod is fixed with the knob, the bottom of L template is fixed with the injection cylinder, the output of injection cylinder is provided with the fixture that is used for the centre gripping at gliding core bar top in the syringe, be provided with on the installed part and be used for making the driven shaft rotate the adjustment mechanism who adjusts the injection puncture angle of syringe and pjncture needle.

Furthermore, one side wall of the first clamping block and one side wall of the second clamping block are both arc-shaped and are provided with slots matched with the syringe.

Further, fixture is including fixing the second U template at the injection cylinder output, and a lateral wall of second U template is fixed with the motor through the extension board, it is connected with two-way threaded rod to rotate through the bearing between the both sides wall of second U template, the both ends of two-way threaded rod threaded connection respectively have the splint, two splint sliding connection is in the bottom of second U template, the one end of two-way threaded rod pass with the second U template adjacent lateral wall and with the output shaft fixed connection of motor.

Furthermore, arc-shaped clamping grooves are formed in one side wall of each clamping plate and are symmetrically clamped on the top end surface of the inner core rod of the injector.

Further, a limiting groove is formed in the bottom of the second U-shaped plate, a limiting block is fixed to the top of the clamping plate, and the limiting blocks are connected in the limiting groove in a sliding mode.

Further, adjustment mechanism is including fixing the gear motor at the installed part top, the one end of initiative axle pass the lateral wall of adjacent riser and with gear motor's output shaft fixed connection, be provided with driving gear and driven gear between two risers respectively, the surface cover that the driving shaft is located between two risers is established and is fixed with the driving gear, the surface cover that the driven shaft is located between two risers is established and is fixed with driven gear, driving gear and driven gear meshing.

Furthermore, slide bars are symmetrically fixed to the top and the bottom of the first U-shaped plate, and the L-shaped plates are connected to the surfaces of the two slide bars in a sliding mode.

(III) advantageous effects

Compared with the prior art, the invention provides a safe injection puncture instrument, which has the following beneficial effects:

according to the invention, through arranging the first clamping block, the second clamping block, the one-way threaded rod, the injection cylinder and the clamping mechanism, the movement of the core rod in the injector can be automatically controlled according to needs, so that medicine injection or effusion extraction can be automatically carried out after puncture is finished, the risk of puncture surgery is reduced, and potential safety hazards are reduced.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at the position A of the present invention;

FIG. 3 is a schematic view of a cut-away portion of a first clamping block of the present invention;

FIG. 4 is a schematic view of a spacing groove structure according to the present invention;

fig. 5 is a schematic view of an arc-shaped slot structure according to the present invention.

In the figure: 1. an injector; 2. puncturing needle; 3. a mounting member; 4. a vertical plate; 5. a drive shaft; 6. a driven shaft; 7. a first U-shaped plate; 8. a puncture cylinder; 9. an L-shaped plate; 10. a first clamping block; 11. a limiting rod; 12. a second clamp block; 13. a one-way threaded rod; 14. an injection cylinder; 15. a clamping mechanism; 1501. a second U-shaped plate; 1502. a motor; 1503. a bidirectional threaded rod; 1504. a splint; 1505. a card slot; 1506. A limiting groove; 1507. a limiting block; 16. an adjustment mechanism; 1601. a reduction motor; 1602. a driving gear; 1603. a driven gear; 17. a slot; 18. a slide bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1, a safe injection and puncture device according to an embodiment of the present invention includes an injector 1, a puncture needle 2, and a mounting member 3, wherein the injector 1 is connected to the puncture needle 2 and located on the right side of the mounting member 3, two vertical plates 4 are fixed to the top of the mounting member 3, a driving shaft 5 and a driven shaft 6 are rotatably connected between the two vertical plates 4 through bearings, one end of the driven shaft 6 penetrates through the side wall of the adjacent vertical plate 4 and is provided with a first U-shaped plate 7, a puncture cylinder 8 is fixed to the top of the first U-shaped plate 7, an L-shaped plate 9 is fixedly connected to the output end of the puncture cylinder 8, the L-shaped plate 9 is slidably connected in the first U-shaped plate 7, a first clamping block 10 is fixed to one side wall of the L-shaped plate 9 through four fixing columns, and a limiting rod 11 is symmetrically fixed to one side wall of the first clamping block 10, the two limiting rods 11 are slidably connected with second clamping blocks 12, the first clamping blocks 10 and the second clamping blocks 12 are in close contact with the surface of the injector 1, threaded holes are formed in the side walls of the second clamping blocks 12, one-way threaded rods 13 are connected with the threaded holes in internal threads, one ends of the one-way threaded rods 13 are rotatably connected to one side wall of the first clamping blocks 10 through bearings, knobs are fixed to the other ends of the one-way threaded rods 13, an injection cylinder 14 is fixed to the bottom of the L-shaped plate 9, a clamping mechanism 15 used for clamping the top end of a core rod sliding in the injector 1 is arranged at the output end of the injection cylinder 14, and an adjusting mechanism 16 used for enabling the driven shaft 6 to rotate to adjust the injection puncture angles of the injector 1 and the puncture needle 2 is arranged on the mounting piece 3; to sum up, the mounting part 3 is fixedly installed on a moving mechanism on an operating table, so as to move different positions of the injector 1 and the puncture needle 2 according to puncture operations of different parts, when the puncture operation is required to be performed on a patient, the injector 1 is placed between a first clamping block 10 and a second clamping block 12, a one-way threaded rod 13 can be driven to rotate by rotating a knob, the one-way threaded rod 13 can drive the second clamping block 12 to move towards the first clamping block 10 on two limiting rods 11, so that the injector 1 can be fixed between the first clamping block 10 and the second clamping block 12, then the top end of a core rod sliding in the injector 1 can be clamped by operating a clamping mechanism 15, the core rod can be moved according to specific requirements by matching with an injection cylinder 14, finally, the driven shaft 6 can be rotated by operating an adjusting mechanism 16, and the driven shaft 6 can drive a first U-shaped plate 7 to rotate, first U template 7 can drive L template 9 and rotate, and L template 9 can drive syringe 1 and pjncture needle 2 of centre gripping above that and rotate to can adjust the puncture angle of pjncture needle 2, after adjusting, start puncturing cylinder 8 and make its output stretch out, just can drive pjncture needle 2 through L template 9 and puncture to the human body, after the puncture entered, start injection cylinder 14 and just can realize injecting the medicine and extract the hydrops, avoid needing medical staff to operate once more and the potential safety hazard that exists.

As shown in fig. 3, in some embodiments, one side wall of each of the first clamping block 10 and the second clamping block 12 is arc-shaped and is provided with a slot 17 adapted to the syringe 1, so as to facilitate clamping and limiting the syringe 1.

As shown in fig. 1 and 2, in some embodiments, the clamping mechanism 15 includes a second U-shaped plate 1501 fixed at the output end of the injection cylinder 14, a motor 1502 is fixed on a side wall of the second U-shaped plate 1501 through a support plate, a bidirectional threaded rod 1503 is rotatably connected between two side walls of the second U-shaped plate 1501 through a bearing, two clamping plates 1504 are respectively connected to two ends of the bidirectional threaded rod 1503 in a threaded manner, the two clamping plates 1504 are slidably connected to the bottom of the second U-shaped plate 1501, one end of the bidirectional threaded rod 1503 penetrates through a side wall adjacent to the second U-shaped plate 1501 and is fixedly connected to an output shaft of the motor 1502, the motor 1502 is started to drive the bidirectional threaded rod 1503 to rotate, and the bidirectional threaded rod 1503 can drive the two clamping plates 1504 to move relatively, so that the top end of the core rod in the injector 1 can be clamped.

As shown in fig. 2 and 5, in some embodiments, an arc-shaped slot 1505 is formed on a sidewall of the clamping plate 1504, and the arc-shaped slot 1505 is symmetrically clamped on the top surface of the plunger rod of the syringe 1, so that the clamping plate 1504 can smoothly clamp the top end of the plunger rod.

As shown in fig. 4 and 5, in some embodiments, a limiting groove 1506 is formed at the bottom of the second U-shaped plate 1501, a limiting block 1507 is fixed at the top of each clamping plate 1504, and each limiting block 1507 is slidably connected in the limiting groove 1506, so as to limit the two clamping plates 1504 during movement.

As shown in fig. 1, in some embodiments, the adjusting mechanism 16 includes a decelerating motor 1601 fixed on the top of the mounting part 3, one end of the driving shaft 5 passes through the side wall of the adjacent riser 4 and is fixedly connected to the output shaft of the decelerating motor 1601, a driving gear 1602 and a driven gear 1603 are respectively disposed between the two risers 4, a driving gear 1602 is disposed on a surface of the driving shaft 5 between the two risers 4, a driven gear 1603 is disposed on a surface of the driven shaft 6 between the two risers 4, the driving gear 1602 is engaged with the driven gear 1603, the decelerating motor 1601 is activated to drive the driving shaft 5 and the driving gear 1602 fixed thereon to rotate, the driving gear 1602 can drive the driven gear 1603 to rotate, the driven gear 1603 can drive the driven shaft 6 to rotate, the driven shaft 6 can drive the first U-shaped plate 7 to rotate, so that the angle of the puncture needle 2 can be adjusted.

In some embodiments, as shown in fig. 1, the first U-shaped plate 7 has slide bars 18 symmetrically fixed on the top and bottom thereof, and the L-shaped plate 9 is slidably connected to the surfaces of the two slide bars 18, so as to facilitate the movement of the L-shaped plate 9 in cooperation with the puncture cylinder 8.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety injection and puncture device comprises an injector (1), a puncture needle (2) and a mounting part (3), and is characterized in that: the injector (1) is communicated with the puncture needle (2) in an installing mode and is located on the right side of the installing piece (3), two vertical plates (4) are fixed to the top of the installing piece (3), a driving shaft (5) and a driven shaft (6) are connected between the two vertical plates (4) in a rotating mode through bearings, one end of the driven shaft (6) penetrates through the side wall of the adjacent vertical plate (4) and is provided with a first U-shaped plate (7), a puncture air cylinder (8) is fixed to the top of the first U-shaped plate (7), an L-shaped plate (9) is fixedly connected to the output end of the puncture air cylinder (8), the L-shaped plate (9) is connected into the first U-shaped plate (7) in a sliding mode, a first clamping block (10) is fixed to one side wall of the L-shaped plate (9) through four fixing columns, limiting rods (11) are symmetrically fixed to one side wall of the first clamping block (10), and second clamping blocks (12) are connected onto the two limiting rods (11) in a sliding mode, the surface in close contact with syringe (1) between first clamp splice (10) and the second clamp splice (12), the threaded hole has been seted up to the lateral wall of second clamp splice (12), and threaded hole female connection has one-way threaded rod (13), one end of one-way threaded rod (13) is passed through the bearing and is rotated the lateral wall of connecting at first clamp splice (10), the other end of one-way threaded rod (13) is fixed with the knob, the bottom of L template (9) is fixed with injection cylinder (14), the output of injection cylinder (14) is provided with fixture (15) that are used for the centre gripping at the gliding core bar top in syringe (1), be provided with on installed part (3) and be used for making driven shaft (6) rotate adjustment syringe (1) and puncture angle's of puncture of pjncture needle (2) adjustment mechanism (16).

2. A safety injection and penetration device according to claim 1, wherein: one side wall of each of the first clamping block (10) and the second clamping block (12) is arc-shaped and is provided with a slot (17) matched with the syringe (1).

3. A safety injection and penetration device according to claim 1, wherein: the clamping mechanism (15) comprises a second U-shaped plate (1501) fixed at the output end of the injection cylinder (14), a motor (1502) is fixed to one side wall of the second U-shaped plate (1501) through a support plate, a bidirectional threaded rod (1503) is rotatably connected between two side walls of the second U-shaped plate (1501) through a bearing, two clamping plates (1504) are respectively in threaded connection with two ends of the bidirectional threaded rod (1503), the two clamping plates (1504) are slidably connected to the bottom of the second U-shaped plate (1501), and one end of the bidirectional threaded rod (1503) penetrates through one side wall adjacent to the second U-shaped plate (1501) and is fixedly connected with an output shaft of the motor (1502).

4. A safety injection and penetration device according to claim 3, wherein: arc-shaped clamping grooves (1505) are formed in one side wall of the clamping plate (1504), and the arc-shaped clamping grooves (1505) are symmetrically clamped on the top end surface of the inner core rod of the injector (1).

5. A safety injection and penetration device according to claim 3, wherein: spacing groove (1506) have been seted up to the bottom of second U template (1501), splint (1504)'s top all is fixed with stopper (1507), stopper (1507) equal sliding connection is in spacing groove (1506).

6. A safety injection and penetration device according to claim 1, wherein: adjustment mechanism (16) including fixing gear motor (1601) at installed part (3) top, the one end of driving shaft (5) pass the lateral wall of adjacent riser (4) and with gear motor (1601) output shaft fixed connection, be provided with driving gear (1602) and driven gear (1603) between two riser (4) respectively, driving shaft (5) are located the surface cover between two riser (4) and are established and are fixed with driving gear (1602), driven shaft (6) are located the surface cover between two riser (4) and are established and are fixed with driven gear (1603), driving gear (1602) and driven gear (1603) meshing.

7. A safety injection and penetration device according to claim 1, wherein: the top and the bottom of the first U-shaped plate (7) are symmetrically fixed with sliding rods (18), and the L-shaped plate (9) is connected to the surfaces of the two sliding rods (18) in a sliding manner.