CN219048634U

CN219048634U - Puncture needle

Info

Publication number: CN219048634U
Application number: CN202223051210.2U
Authority: CN
Inventors: 杨乐; 刘国兴; 王容; 王均锋; 于晓绚
Original assignee: Jinfu Beijing Medical Technology Co ltd
Current assignee: Jinfu Beijing Medical Technology Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-05-23
Anticipated expiration: 2032-11-16

Abstract

The utility model provides a puncture needle, and relates to the field of puncture needles. Including the puncture handle, the right side fixed surface of puncture handle is connected with the connecting handle, and the right side fixed surface of connecting handle is connected with the outer sheath pipe, and the right side fixedly connected with link of outer sheath pipe wall has cup jointed hard around the spring in the left side of outer sheath pipe wall, and the right side of outer sheath pipe wall has cup jointed soft around the spring, and the left and right ends of hard around the spring respectively with the right side surface of connecting handle and the left side fixed surface of link are connected, the left end of soft around the spring and the right side fixed surface of link are connected. The utility model adopts the hard winding spring and the soft winding spring to be sleeved on the outer sheath tube, the far end is provided with the soft winding spring, the bending function of the far end endoscope can be matched, the near end is provided with the hard winding spring, the pushing property of the pushing instrument is improved, the hard winding spring and the soft winding spring have the advantages of difficult deformation, relatively straight shape after multiple punctures, better elasticity and better effect for puncture operation of tens of times near one biopsy.

Description

Puncture needle

Technical Field

The utility model relates to the field of puncture needles, in particular to a puncture needle.

Background

The puncture needle is a medical instrument for sampling and injecting the tissues of various organs such as kidney, liver, lung, mammary gland, thyroid gland, prostate gland, pancreas, testis, uterus, ovary, body surface and the like in the minimally invasive surgery, the ultrasonic biopsy needle is matched with an ultrasonic endoscope for use, the ultrasonic biopsy needle enters a target part through a working channel of the ultrasonic endoscope, a biopsy area is observed under the ultrasonic, and then the needle is discharged to puncture the biopsy part to suck out a sample for pathological analysis and diagnosis.

The puncture needle is inserted into the radiological equipment, and in the radiological operation, the mucous membrane is punctured to further guide the radiological equipment (guide wire, catheter, filter, stent, etc.) into the body, so as to perform vascular and non-vascular interventional operation.

Because the ultrasonic endoscope is a soft endoscope, the instrument needs to have elasticity and enough compliance, the endoscope can still keep a larger bending angle after the instrument enters the working channel of the endoscope, the lesion part can be reached, most of the products on the market are plastic sheath tubes, and the instrument has poor elasticity and is easy to deform.

Disclosure of Invention

The utility model aims to provide a puncture needle, so as to solve the problems that the ultrasonic endoscope is a soft endoscope, so that the instrument needs to have elasticity and enough compliance, the endoscope can still keep a larger bending angle after the instrument enters an endoscope working channel, a lesion part can be reached, and most of products on the market are plastic sheath tubes at present, and the elasticity is poor and the instrument is easy to deform.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the puncture needle comprises a puncture handle, a connection handle is fixedly connected with the right side surface of the puncture handle, an outer sheath tube is fixedly connected with the right side surface of the connection handle, a connection end is fixedly connected with the right side of the outer sheath tube wall, a hard winding spring is sleeved on the left side of the outer sheath tube wall, a soft winding spring is sleeved on the right side of the outer sheath tube wall, the left end and the right end of the hard winding spring are respectively fixedly connected with the right side surface of the connection handle and the left side surface of the connection end, the left end of the soft winding spring is fixedly connected with the right side surface of the connection end, a puncture needle head is fixedly connected with the right end of the outer sheath tube, and an aspiration device is arranged inside the puncture needle head.

Preferably, the suction device comprises a piston block, the surface of the piston block is in sliding connection with the inner wall of the puncture needle head, the left end of the puncture needle head is fixedly connected with a pull rope, and the left side surface of the piston block and the left side of the inner wall of the puncture needle head are fixedly connected with springs.

Preferably, the right side of the surface of the puncture needle head is provided with a plurality of air ports.

Preferably, the right side surface of the connecting handle is provided with a first cavity, the front side and the rear side of the inner wall of the first cavity are jointly connected with a rotating rod in a rotating mode, the rod wall of the rotating rod is fixedly connected with a wire collecting roller, the left end of the pull rope penetrates through the left side of the inner wall of the puncture needle head and the inner wall of the outer sheath tube and the right side surface of the connecting handle to the inside of the first cavity, and the left end of the pull rope is fixedly connected with the surface of the wire collecting roller.

Preferably, the second cavity has been seted up to the rear side surface of connective handle, the rear end of bull stick runs through the rear side of first cavity inner wall to the inside of second cavity, the rear end fixedly connected with worm wheel of bull stick, the left side surface meshing of worm wheel is connected with the worm, the upper end of worm runs through the upside of second cavity inner wall to the upside surface of connective handle, the upper end fixedly connected with of worm turns to the torsion button.

Preferably, anti-skid patterns are formed on the surface of the rotary button.

The utility model has the technical effects and advantages that:

1. by arranging the puncture handle, the connecting handle, the outer sheath tube, the connecting end, the hard winding spring, the soft winding spring and the puncture needle head, the utility model adopts the hard winding spring and the soft winding spring to be sleeved on the outer sheath tube, the far end is provided with the soft winding spring, the bending function of the far-end endoscope can be matched, the near end is provided with the hard winding spring, the push property of the pushing instrument is improved, the hard winding spring and the soft winding spring are not easy to deform, the shape can be still kept straight after multiple punctures, the elasticity is better, and the better effect can be kept for puncture operation of tens times near one biopsy.

2. Through setting up piston block, puncture syringe needle, spring, stay cord, under the effect of aspiration device, conveniently inhale the sample of puncture from this position to collect in the puncture syringe needle to the convenience is with the sample aspiration of puncture.

3. Through setting up bull stick, take-up roller, stay cord, outer sheath pipe, joint lever, under the effect of take-up roller, carry out the rolling to the stay cord to drive the piston piece and remove, make the piston piece drive air flow, inhale the sample to the puncture syringe needle in.

Drawings

FIG. 1 is a schematic diagram of the overall front cross-sectional structure of the present utility model.

Fig. 2 is an enlarged schematic view of the portion a of fig. 1 according to the present utility model.

Fig. 3 is an enlarged view of the B part of fig. 1 according to the present utility model.

Fig. 4 is an enlarged view of the C part of fig. 1 according to the present utility model.

FIG. 5 is a schematic view of the cross-sectional structure of the upper side of the connecting handle of the present utility model.

Fig. 6 is a schematic overall perspective view of the present utility model.

Fig. 7 is a schematic perspective view of the puncture needle according to the present utility model.

In the figure: 1. a puncture handle; 2. a connecting handle; 3. an outer sheath; 4. a connection end; 5. a hard winding spring; 6. a soft winding spring; 7. a puncture needle; 8. a piston block; 9. a spring; 10. an air port; 11. a rotating rod; 12. a wire winding roller; 13. a pull rope; 14. a worm wheel; 15. a worm; 16. a rotary knob.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a puncture needle as shown in figures 1-7, which comprises a puncture handle 1, wherein the right side surface of the puncture handle 1 is fixedly connected with a connecting handle 2, the right side surface of the connecting handle 2 is fixedly connected with an outer sheath tube 3, the right side of the tube wall of the outer sheath tube 3 is fixedly connected with a connecting end 4, the left side of the tube wall of the outer sheath tube 3 is sleeved with a hard winding spring 5, the right side of the tube wall of the outer sheath tube 3 is sleeved with a soft winding spring 6, the left end and the right end of the hard winding spring 5 are respectively and fixedly connected with the right side surface of the connecting handle 2 and the left side surface of the connecting end 4, the left end of the soft winding spring 6 is fixedly connected with a puncture needle 7, the right end of the soft winding spring 6 is fixedly connected with the left side surface of the puncture needle 7, and the inside of the puncture needle 7 is provided with an aspiration device, the hard winding spring 5 and the soft winding spring 6 are sleeved on the outer sheath tube 3, the far end is arranged as the soft winding spring 6, the bending function of an endoscope can be adapted, the near end is arranged as the hard winding spring 5, the near end is lifted, the near end can be pushed by the soft winding spring 5, the near end can keep the shape of the puncture needle can be pushed by the puncture needle after the puncture needle is more difficult to be pushed by a better, the puncture needle is pushed by a better, the shape of a biopsy instrument can be kept more than the near the puncture instrument, and can be deformed more frequently, and the biopsy instrument can be kept more easily.

As shown in fig. 1 and 3, the suction device comprises a piston block 8, the surface of the piston block 8 is slidably connected with the inner wall of the puncture needle 7, a pull rope 13 is fixedly connected with the left end of the puncture needle 7, a spring 9 is fixedly connected with the left side of the left side surface of the piston block 8 and the left side of the inner wall of the puncture needle 7, under the action of the suction device, a puncture sample is conveniently sucked into the puncture needle 7 from the position to be collected, so that the puncture sample is conveniently sucked out, a plurality of air ports 10 are formed in the right side of the surface of the puncture needle 7, and under the action of the plurality of air ports 10, the sample is conveniently sucked into the puncture needle 7, so that the sample is collected in the puncture needle 7.

As shown in fig. 1, fig. 4 and fig. 5, the right side surface of the connecting handle 2 is provided with a first cavity, the front side and the rear side of the inner wall of the first cavity are jointly connected with a rotating rod 11 in a rotating mode, the rod wall of the rotating rod 11 is fixedly connected with a wire collecting roller 12, the left end of a pull rope 13 penetrates through the left side of the inner wall of the puncture needle 7 and the inner wall of the outer sheath tube 3 and the right side surface of the connecting handle 2 to the inside of the first cavity, the left end of the pull rope 13 is fixedly connected with the surface of the wire collecting roller 12, the pull rope 13 is wound under the action of the wire collecting roller 12, so that the piston block 8 is driven to move, and the piston block 8 drives air to flow, so that a sample is sucked into the puncture needle 7.

As shown in fig. 1, fig. 4 and fig. 5, the second cavity is offered on the rear side surface of the connection handle 2, the rear end of bull stick 11 runs through the rear side of first cavity inner wall to the inside of second cavity, the rear end fixedly connected with worm wheel 14 of bull stick 11, the left side surface meshing of worm wheel 14 is connected with worm 15, the upper end of worm 15 runs through the upside of second cavity inner wall to the upside surface of connection handle 2, the upper end fixedly connected with of worm 15 twists reverse button 16, under worm wheel 14 and worm 15's transmission, make take-up roller 12 can rotate, thereby make take-up roller 12 carry out the rolling to stay cord 13, the anti-skidding line has been offered on the surface of button 16, under the effect of anti-skidding line, conveniently drive button 16 rotates, thereby avoid button 16 to skid.

The working principle of the utility model is as follows: when the device is used, the puncture needle 7 on the device is placed at a using position, so that when the puncture needle 7 moves, the outer sheath tube 3 deforms according to the moving track of the puncture needle 7, and the hard winding spring 5 and the soft winding spring 6 are connected under the action of the connecting end 4, so that the hard winding spring 5 and the soft winding spring 6 are convenient to deform, the soft winding spring 6 deforms more conveniently along with the inserting position of the puncture needle 7, the deformation amplitude of the hard winding spring 5 is smaller, and puncture starts after the puncture needle 7 reaches a designated position;

after the puncture is finished, the sample at the puncture position needs to be extracted, thereby rotating the rotary knob 16, driving the worm wheel 14 on the rotary rod 11 through the worm 15 to rotate, enabling the rotary rod 11 to drive the wire winding roller 12 to wind the pull rope 13, driving the piston block 8 in the puncture needle 7 through the pull rope 13 to move, enabling the puncture sample to enter the puncture needle 7 through the air port 10 on the puncture needle 7 to be collected under the air flow, turning over the rotary knob 16 after the puncture is finished, loosening the winding of the pull rope 13 by the wire winding roller 12, and driving the piston block 8 to reset under the action of the spring 9, thereby being convenient for next use.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The puncture needle comprises a puncture handle (1), and is characterized in that: the utility model discloses a puncture handle, including puncture handle (1), right side fixed surface of handle (2) is connected with outer sheath pipe (3), right side fixedly connected with link (4) of outer sheath pipe (3) pipe wall, hard around spring (5) have been cup jointed in the left side of outer sheath pipe (3) pipe wall, soft around spring (6) have been cup jointed on the right side of outer sheath pipe (3) pipe wall, the left and right sides both ends of hard around spring (5) respectively with the right side surface of handle (2) and the left side fixed surface of link (4) are connected, the left end of soft around spring (6) and the right side fixed surface of link (4) are connected, the right-hand member fixedly connected with puncture needle (7) of outer sheath pipe (3), the right-hand member of soft around spring (6) and the left side fixed surface of puncture needle (7) are connected, the inside of puncture needle (7) is provided with suction device.

2. The needle of claim 1, wherein: the suction device comprises a piston block (8), the surface of the piston block (8) is in sliding connection with the inner wall of the puncture needle head (7), the left end of the puncture needle head (7) is fixedly connected with a pull rope (13), and the left side surface of the piston block (8) and the left side of the inner wall of the puncture needle head (7) are fixedly connected with a spring (9) together.

3. The needle of claim 1, wherein: the right side of the surface of the puncture needle head (7) is provided with a plurality of air ports (10).

4. The needle of claim 2, wherein: the utility model discloses a puncture needle, including handle (2), pull rope (13), first cavity has been seted up on the right side surface of handle (2), the front and back both sides of first cavity inner wall rotate jointly and are connected with bull stick (11), the pole wall fixedly connected with receipts line roller (12) of bull stick (11), the left end of pull rope (13) runs through the inside of the left side of puncture needle (7) inner wall and outer sheath pipe (3) and the right side surface of handle (2) to first cavity, the left end and the fixed surface of receipts line roller (12) of pull rope (13).

5. The needle of claim 4, wherein: the rear side surface of connective handle (2) has seted up the second cavity, the rear end of bull stick (11) runs through the rear side of first cavity inner wall to the inside of second cavity, the rear end fixedly connected with worm wheel (14) of bull stick (11), the left side surface meshing of worm wheel (14) is connected with worm (15), the upside of second cavity inner wall is run through to the upside surface of connective handle (2) to the upper end of worm (15), the upper end fixedly connected with twist knob (16) of worm (15).

6. The needle of claim 5, wherein: anti-skid patterns are formed on the surface of the rotary button (16).