CN210472236U

CN210472236U - Waist puncture needle capable of preventing blockage

Info

Publication number: CN210472236U
Application number: CN201920694840.0U
Authority: CN
Inventors: 翁珊珊; 叶婉纯
Original assignee: Wenzhou Central Hospital
Current assignee: Wenzhou Central Hospital
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-05-08
Anticipated expiration: 2029-05-15

Abstract

The utility model discloses a waist puncture needle that prevents to block up, including outer needle tube, interior needle tube and needle file, outer needle tube connects the needle file, outer needle tube is including the puncture end of closed form, outer needle tube is provided with the drainage hole at the outer peripheral face that is close to the puncture end, interior needle tube rotates with outer needle tube to be connected, and be used for shutoff drainage hole, this interior needle tube periphery wall correspondence is provided with the first regulation hole that distributes along circumference straggly with the drainage hole, be provided with the ring channel on the needle file, interior needle tube periphery wall is connected with the linking arm, this linking arm one end stretches out the ring channel and extends to the needle file lateral wall, when stirring in the ring channel at the drive linking arm, interior needle tube rotates, avoided organizing shutoff drainage hole in puncture process, and simple structure, and convenient operation.

Description

Waist puncture needle capable of preventing blockage

Technical Field

The utility model relates to the field of medical equipment, concretely relates to prevent lumbar puncture needle of jam.

Background

The lumbar puncture is a diagnosis and treatment operation which is commonly used in clinic, and can be used for diagnosing various inflammatory diseases of the central nervous system, vascular diseases, spinal cord diseases, suspected intracranial space occupying diseases, nervous system diseases which are not diagnosed, pneumoencephalography, spinal angiography and the like; it is also used for treating central nervous system diseases by discharging (reducing) and infusing medicine due to high cerebrospinal fluid pressure. The most important medical apparatus for lumbar puncture is a lumbar puncture needle, when the existing lumbar puncture needle is used for lumbar puncture, a needle hole is easily blocked by body tissues, so that drainage is unsmooth, or puncture needs to be performed again, and the existing lumbar puncture needle has a plurality of unreasonable places in clinical application.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims at providing a waist puncture needle that prevents to block up that facilitates the use.

In order to achieve the purpose, the utility model provides a waist puncture needle capable of preventing blockage, which comprises an outer needle tube, an inner needle tube and a needle seat, wherein the outer needle tube is connected with the needle seat, the inner needle tube is sleeved in the outer needle tube, the outer needle tube comprises a puncture end and an expansion end, the expansion end forms a containing cavity and is connected with the needle seat, the needle seat is used for being connected with the needle tube, the puncture end is provided with a closed inclined plane, the outer needle tube is provided with drainage holes at the outer peripheral surface close to the puncture end, the inner needle tube is rotatably connected with the outer needle tube and is used for plugging the drainage holes, the outer peripheral wall of the inner needle tube is correspondingly provided with first adjusting holes distributed along the circumferential direction in a staggered way with the drainage holes, the other end of the inner needle tube, back to the first adjusting holes, extends to the expansion tube at the position corresponding to the expansion end, the rear end of the expansion tube extends with an insertion tube for inserting the needle tube, form a sealed chamber that holds in enlargement portion, intubate and cylinder sealing connection, the needle file is connected the cylinder with one end cladding at outer needle outside of tubes wall, one end in addition, be provided with the ring channel on the needle file, the intubate periphery wall is connected with the linking arm, and this linking arm one end stretches out the ring channel and extends to the needle file lateral wall, and when the drive linking arm was stirred in the ring channel, interior needle tubing rotated.

As a further improvement of the utility model, the rotating ring is sleeved on the outer side wall of the needle seat, and the inner wall of the rotating ring is connected with the connecting arm.

As a further improvement, the outer needle tubing is being provided with the interface holding the chamber, the interior needle tubing expands the pipe and corresponds interface circumference distribution of straying and be provided with the second regulation hole, the outer needle tubing holds intracavity face and is anchor ring or conical surface, expand the pipe outer wall and hold the laminating of intracavity face, when first regulation hole aligns with the drainage hole, the second regulation hole staggers with the interface, when the second regulation hole aligns with the interface, first regulation hole staggers with the drainage hole.

As a further improvement, the needle file corresponds annular trench position and is provided with the first instruction line that is used for instructing the drainage hole, be provided with the second instruction line that is used for instructing first regulation hole and second regulation hole on the swivel becket.

As a further improvement, the outer needle tube is provided with an arc inclined plane at the puncture end, and the puncture end is tilted towards the inclined plane side.

As a further improvement, the drainage hole is oval, and the drainage hole is arranged on the outer wall close to one side of the inclined plane.

As a further improvement of the utility model, the puncture needle is provided with scale marks.

The utility model discloses a waist is worn the needle, through setting up inside and outside needle tubing, the mechanical strength of needle tubing has been strengthened on the one hand, set up the puncture end of outer needle tubing into the closed form in addition, and set up the periphery wall of outer needle tubing with the drainage hole, through setting up interior needle tubing shutoff drainage hole, in order to avoid organizing the shutoff drainage hole at puncture in-process, after the puncture targets in place, can be through rotating interior needle tubing, make the first regulation hole of interior needle tubing align with the drainage hole, take out spinal fluid, interior needle tubing is reasonable with outer needle tubing's connection mounting structure, only with rotating interior needle tubing through the drive linking arm, more convenient operation when the operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Description of the drawings: 1. an outer needle tube; 2. an inner needle tube; 3. a needle seat; 4. a puncture end; 5. an enlarged end; 6. an accommodating chamber; 7. a bevel; 8. a drainage hole; 9. a first adjustment aperture; 10. expanding a large pipe; 11. inserting a tube; 12. an annular groove; 13. a connecting arm; 14. a rotating ring; 15. an interface; 16. a second adjustment aperture.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings, examples and effect examples, without limiting the present invention.

As shown in the attached figure 1, the embodiment discloses a lumbar puncture needle for preventing blockage, which comprises an outer needle tube 1, an inner needle tube 2 and a needle seat 3, wherein the outer needle tube 1 is connected with the needle seat 3, the needle seat 3 is fixedly connected with the outer needle tube 1, the inner needle tube is sleeved in the outer needle tube 1, the outer needle tube 1 comprises a puncture end 4 and an expansion end 5, the expansion end 5 forms a containing cavity 6 and is connected with the needle seat 3, the needle seat 3 is used for being connected with a needle tube, the puncture end 4 is provided with a closed inclined plane 7, the outer needle tube 1 is provided with drainage holes 8 on the outer circumferential surface close to the puncture end 4, the inner needle tube 2 is rotatably connected with the outer needle tube 1 and is used for plugging the drainage holes 8, the outer circumferential wall of the inner needle tube 2 is correspondingly provided with first adjusting holes 9 which are distributed along the circumferential direction in a staggered manner with the drainage holes 8, when the first adjusting holes 9 and the drainage holes 8 are arranged in a, the utility model discloses a needle tube, including inner needle tube 2, the one end of first regulation hole 9 that expands in the opposite direction is extended to have expansion pipe 10 corresponding expansion end 5 positions, and expansion pipe 10 sets up and is holding chamber 6, and this expansion pipe 10 rear end extends to have the intubate 11 that is used for inserting the cylinder, is provided with the sealing washer between intubate 11 and the cylinder,

outer needle tube

1 and 11 connecting portion sealing connection of intubate are provided with the sealing washer between outer needle tube 1 and the intubate 11, form a sealed chamber 6 that holds in the expansion portion, intubate 11 and cylinder sealing connection, needle file 3 and one end cladding are at outer needle tube 1 outer wall, and the cylinder is connected to one end in addition, be provided with ring channel 12 on the

needle file

3, 11 periphery walls of intubate are connected with linking arm 13, and this linking arm 13 one end stretches out ring channel 12 and extends to 3 lateral wall of needle file, and when drive linking arm.

When the lumbar puncture needle is used, the lumbar puncture needle is installed on the needle cylinder, the inner needle tube 2 is rotated, the inner needle tube 2 is kept to block the drainage tube, the inner needle tube 2 is rotated after the lumbar puncture needle is punctured in place, the first adjusting hole 9 is aligned with the drainage hole 8, and spinal fluid is pumped out.

In a specific implementation manner of this embodiment, a rotating ring 14 is sleeved on an outer side wall of the needle holder 3, an inner wall of the rotating ring 14 is connected with the connecting arm 13, and a doctor performs a rotating operation more conveniently by providing the rotating ring 14.

In a specific embodiment of this embodiment, the outer needle cannula 1 is provided with a hub 15 in the receiving chamber, the expanded pipe 10 of the inner needle pipe 2 is provided with second adjusting holes 16 which are circumferentially staggered and distributed corresponding to the interface 15, the inner wall surface of the accommodating cavity of the outer needle tube 1 is a ring surface or a conical surface, the outer wall of the expansion tube 10 is attached to the inner wall surface of the accommodating cavity, when the first adjusting holes 9 are aligned with the drainage holes 8, the second adjusting holes 16 are staggered with the interfaces 15, when the second adjusting hole 16 is aligned with the interface 15, the first adjusting hole 9 is staggered with the drainage hole 8, by arranging the interface 15 in the containing cavity of the outer needle tube 1 and arranging the interface 15 to realize drainage, the interface 15 can be connected with a three-way pipe to realize the injection of the medicine, and through arranging the first adjusting hole 9 and the second adjusting, when drainage holes 8 are open, port 15 is closed, and when drainage holes 8 are closed, port 15 is closed, preventing excess spinal fluid from overflowing from port 15.

The specific implementation mode of this embodiment, the needle file 3 corresponds ring channel 12 position and is provided with the first instruction line that is used for instructing drainage hole 8, be provided with the second instruction line that is used for instructing first regulation hole 9 and second regulation hole 16 on the swivel becket 14, align with first instruction line through the second instruction line that rotates the correspondence of first regulation hole 9 respectively behind swivel becket 14 or the second instruction line that second regulation hole 16 corresponds aligns with interface 15, adjust the turned angle of interior needle tubing 2, can play more audio-visual indicating effect.

In the specific embodiment of this embodiment, the outer needle tube 1 is provided with the arc inclined plane 7 at the puncture end 4, and this puncture end 4 is the crooked perk to inclined plane 7 side, sets up it as the inclined plane 7 of crooked perk after its puncture end 4 sets up to the closed surface for puncture end 4 is sharper, gets into the tissue more smoothly.

In the specific embodiment of this embodiment, the drainage holes 8 are oval, and the drainage holes 8 are disposed on the outer wall of the side close to the inclined plane 7.

In a specific implementation manner of this embodiment, the puncture needle is provided with scale marks, and the scale marks are distributed along the axial direction of the puncture needle, so that the insertion depth of the puncture needle can be conveniently observed.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a prevent waist of jam and wear needle which characterized in that: including outer needle tubing (1), inner needle tubing (2) and needle file (3), outer needle tubing (1) connection needle file (3), inner needle tubing (2) cup joint in outer needle tubing (1), outer needle tubing (1) is including puncture end (4) and expansion end (5), expansion end (5) form one and hold chamber (6) to be connected with needle file (3), needle file (3) are used for being connected with the cylinder, puncture end (4) are provided with inclined plane (7) of closed form, outer needle tubing (1) is provided with drainage hole (8) in the outer peripheral face that is close to puncture end (4), inner needle tubing (2) rotate with outer needle tubing (1) and are connected to be used for shutoff drainage hole (8), this inner needle tubing (2) periphery wall corresponds and is provided with first regulation hole (9) along circumference miscarriage distribution with drainage hole (8), inner needle tubing (2) extend to expansion pipe (5) position in addition one end (5) that first regulation hole (9) are gone against the back to one side (10) The utility model discloses a needle holder, this expand pipe (10) rear end extends to have intubate (11) that are used for inserting the cylinder, outer needle tubing (1) and intubate (11) connecting portion sealing connection form a sealed chamber (6) that holds in expansion end (5), intubate (11) and cylinder sealing connection, needle file (3) and one end cladding are at outer needle tubing (1) outer wall, and the cylinder is connected to one end in addition, be provided with ring channel (12) on needle file (3), intubate (11) periphery wall is connected with linking arm (13), and this linking arm (13) one end stretches out ring channel (12) and extends to needle file (3) lateral wall, when drive linking arm (13) stir in ring channel (12), interior needle tubing (2) rotate.

2. The lumbar puncture needle for preventing blockage according to claim 1, characterized in that a rotating ring (14) is sleeved on the outer side wall of the needle seat (3), and the inner wall of the rotating ring (14) is connected with the connecting arm (13).

3. The lumbar puncture needle capable of preventing blockage according to claim 2, characterized in that the outer needle tube (1) is provided with a port (15) in a containing cavity, the inner needle tube (2) expanded tube (10) is provided with second adjusting holes (16) in a circumferentially staggered manner corresponding to the port (15), the inner wall surface of the containing cavity of the outer needle tube (1) is a ring surface or a conical surface, the outer wall of the expanded tube (10) is attached to the inner wall surface of the containing cavity, when the first adjusting holes (9) are aligned with the drainage holes (8), the second adjusting holes (16) are staggered with the port (15), and when the second adjusting holes (16) are aligned with the port (15), the first adjusting holes (9) are staggered with the drainage holes (8).

4. The lumbar puncture needle for preventing blockage according to claim 3, characterized in that the needle seat (3) is provided with a first indicating line corresponding to the position of the annular groove (12) for indicating the drainage hole (8), and the rotating ring (14) is provided with a second indicating line for indicating the first adjusting hole (9) and the second adjusting hole (16).

5. The anti-clogging lumbar puncture needle according to claim 1, wherein the outer needle tube (1) is provided with an arc-shaped inclined surface (7) at the puncture end (4), and the puncture end (4) is bent and tilted to the side of the inclined surface (7).

6. The anti-clogging lumbar puncture needle according to claim 4, characterized in that the drainage hole (8) is oval-shaped, and the drainage hole (8) is provided on the outer wall of the side close to the bevel (7).

7. The anti-clogging lumbar puncture needle according to claim 1, characterized in that the outer needle tube (1) is provided with graduation marks.