CN212816455U - Centrum puncture guiding needle - Google Patents
Centrum puncture guiding needle Download PDFInfo
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- CN212816455U CN212816455U CN202020697312.3U CN202020697312U CN212816455U CN 212816455 U CN212816455 U CN 212816455U CN 202020697312 U CN202020697312 U CN 202020697312U CN 212816455 U CN212816455 U CN 212816455U
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- needle
- puncture
- tail part
- centrum
- tube
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Abstract
The utility model discloses a centrum puncture guiding needle, which comprises a puncture needle and a detachable tail part; the puncture needle comprises a needle head and a needle tube which are integrally formed, the needle tube is of a slender cylindrical structure, the needle head is a blunt cone, and the puncture needle is provided with a through hole penetrating through the needle head and the needle tube; the detachable tail part is provided with a containing hole, and the size and the shape of the containing hole are matched with the tail part of the needle tube, so that the tail part of the needle tube can be inserted into the containing hole and fixed. The utility model has the advantages as follows: the blunt cone puncture needle head is adopted, so that the damage to tissues can be reduced, and simultaneously, the centrum can be fixed, and the needle head part is prevented from sliding; the detachable tail part is arranged, the fixed tail part is beneficial to holding the puncture needle during puncture, when the puncture is in place, the tail part can be detached, the outer sleeve part of the centrum puncture needle is inserted into the guide needle for puncture, and the tail part is installed when the guide needle needs to be pulled out, so that the puncture needle can be conveniently taken out; the annular scale marks the puncture depth which can be accurately judged by the medical personnel operating the puncture device; the through hole penetrating the needle head and the needle tube is convenient for injecting the medicine.
Description
Technical Field
The utility model relates to a centrum puncture guide needle belongs to medical instrument technical field.
Background
With the aging of the population of China, the incidence of fracture caused by osteoporosis is increasing year by year. Patients with osteoporosis vertebral fracture have obvious pain and seriously affect the quality of life. Percutaneous puncture vertebroplasty is a treatment method generally adopted at present, and has the main advantages of small percutaneous puncture wound, quick pain relieving effect and quick recovery of patients. At present, both Percutaneous Vertebroplasty (PVP) and Percutaneous Kyphoplasty (PKP) need to be punctured under the guidance of X-ray or CT, and a puncture point or a puncture angle is repeatedly adjusted in the operation process due to the fact that a centrum puncture needle is thick (10-14G), so that not only is the trauma and pain of a patient increased, but also the operation complications and the radiation exposure of doctors and patients are easily increased.
The existing centrum puncture process, especially the puncture under CT guidance has the following problems:
(1) the centrum puncture needle is thick, the needle head is sharp, the injury to tissues is large during puncture, bleeding is easy to occur during puncture, and the injury to a patient is larger by repeatedly adjusting the puncture point or puncture angle;
(2) when the puncture is carried out by CT guidance, a lumbar anesthesia puncture needle of No. 7 (22G) or No. 9 (20G) is usually adopted for guidance, however, the diameter of the lumbar anesthesia puncture needle is very small, the material is soft, the puncture direction is easy to change, the centrum puncture position is difficult to fix and easy to slide; even if the puncture is in place, the needle can not be directly inserted into the centrum puncture needle to guide the puncture because the needle has a tail part;
(3) the lumbar anesthesia puncture needle is not marked with scales, the puncture depth can only be controlled by the experience of an operator, and the use is inconvenient;
(4) the Kirschner wire for assisting centrum puncture and positioning in clinic is of a solid structure, cannot be used for injecting local anesthetic and the like, lacks scales at the head end and is difficult to accurately judge the needle insertion depth; the tail of the Kirschner wire is a flat head without a holding point, and the needle needs to be knocked by a hammer to be inserted, so that the Kirschner wire cannot play a guiding role in the percutaneous vertebral body puncture process.
Therefore, a safe and convenient centrum puncture guiding needle is clinically needed to reduce the adjustment times of the centrum puncture needle and quickly reach a target site.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a centrum puncture guide needle convenient to accurate puncture.
The utility model adopts the technical proposal that: a centrum puncture guide needle comprises a puncture needle and a detachable tail part;
the puncture needle comprises a needle head and a needle tube which are integrally formed, the needle tube is a cylinder, and the needle head is a blunt cone;
the detachable tail part is provided with an accommodating hole, and the size and the shape of the accommodating hole are matched with the tail part of the needle tube, so that the tail part of the needle tube can be inserted into the accommodating hole and fixed.
Preferably, the tail part of the needle tube is provided with an external thread, and the accommodating hole is internally provided with a matched internal thread.
Preferably, a spring leaf is arranged in the containing hole and used for clamping the tail of the needle tube.
Preferably, the detachable tail part is provided with a shell convenient for holding.
Preferably, the surface of the needle tube is provided with annular scale marks.
Preferably, the adjacent annular scale marks are spaced by 1cm, the annular scale marks at multiples of 5 are shown in a bold manner, and the annular scale marks are represented by multiple lines, wherein the number of the lines is equal to the multiple of 5.
Preferably, the diameter of the needle tube is 1-1.5mm, the length of the needle tube is 10-20cm, and the length of the needle head is 1-1.5 mm.
Preferably, the puncture needle is provided with a through hole penetrating through the needle head and the needle tube.
The utility model has the advantages as follows:
(1) the blunt round centrum needle is adopted, so that the damage to tissues can be reduced, and simultaneously, the centrum puncture part can be better fixed.
(2) The detachable tail part is arranged, the tail part can be installed during puncture, the tail part can be detached and taken out when the puncture is in place, the centrum puncture needle outer sleeve can be conveniently inserted for guiding puncture, and the tail part can be installed when the guide pin needs to be pulled out, so that the puncture needle can be conveniently taken out;
(3) the medical personnel of the operation of being convenient for accurately judge the depth of puncture by the setting of annular scale sign.
(4) The puncture needle is provided with the through hole, can be used for injecting local anesthetic, is convenient to operate, reduces the puncture times of patients and relieves pains.
Drawings
FIG. 1 is a schematic configuration view of example 1 in which the puncture needle is separated from the detachable tail.
Fig. 2 is a schematic view of the structure of embodiment 1 in which a detachable tail is fitted to a puncture needle.
Fig. 3 is a schematic structural view of embodiment 2.
FIG. 4 is a schematic sectional view of a puncture needle according to example 5.
The present invention will be further described with reference to the accompanying drawings and examples.
Detailed Description
Example 1
As shown in figures 1 and 2, the centrum puncture guiding needle comprises a puncture needle and a detachable tail part;
the puncture needle comprises a needle head 1 and a needle tube 2 which are integrally formed, wherein the needle tube is of a slender cylindrical structure, and the needle head is a blunt cone;
the detachable tail part is provided with an accommodating hole 3 and a shell 4 convenient for holding by hand, the tail part of the needle tube is provided with an external thread 5, a matched internal thread is arranged in the accommodating hole, so that the tail part of the needle tube can be screwed into the accommodating hole and fixed, and the detachable tail part is also provided with a handle;
the diameter of needle tubing is at 1mm, and the length of needle tubing is 10cm, and the length of syringe needle is 1.0mm, and the needle tubing surface is equipped with annular scale sign 6, and adjacent annular scale sign interval is 1cm, and the annular scale sign at 5 multiples department adds thick demonstration, and adopts the multiple lines to represent, and the quantity of lines is the multiple of 5.
Example 2
The centrum puncture guiding needle comprises a puncture needle and a detachable tail part;
the puncture needle comprises a needle head 1 and a needle tube 2 which are integrally formed, wherein the needle tube is of a slender cylindrical structure, and the needle head is a blunt cone;
the detachable tail part is provided with an accommodating hole 3 and a shell 4 convenient for holding by hand, the size and the shape of the accommodating hole are matched with the tail part of the needle tube, a spring leaf 7 is arranged in the accommodating hole and used for clamping the tail part of the needle tube, so that the tail part of the needle tube can be screwed into the accommodating hole and fixed, and the detachable tail part is also provided with a locking part;
the diameter of needle tubing is at 1mm, and the length of needle tubing is 10cm, and the length of syringe needle is 1.2mm, and the needle tubing surface is equipped with annular scale sign 6, and adjacent annular scale sign interval is 1cm, and the annular scale sign at 5 multiples department adds thick demonstration, and adopts the multiple lines to represent, and the quantity of lines is the multiple of 5.
Example 3
The structure of this embodiment is substantially the same as embodiment 1, except that: the diameter of the needle tube is 1.5mm, the length of the needle tube is 20cm, and the length of the needle head is 1.5 mm.
Example 4
The structure of this embodiment is substantially the same as embodiment 1, except that: the diameter of the needle tube is 1.2mm, the length of the needle tube is 15cm, and the length of the needle head is 1.0 mm.
Example 5
The structure of this embodiment is substantially the same as embodiment 4, except that: the puncture needle is provided with a through hole 8 which penetrates through the needle head and the needle tube.
The utility model discloses a formula of shirking afterbody and needle tubing afterbody also adopt other structures, for example the structure of the kneck of common cap for brush and pen, as long as enable the formula of shirking afterbody can be easy the cover on the needle tubing afterbody, also can be easy take off from the needle tubing afterbody, and shirk formula afterbody cover when on the needle tubing afterbody, hold between the fingers and shirk the formula afterbody, the pjncture needle can follow and shirk the formula afterbody and move together can.
The above description is only one of the embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a centrum puncture guide needle, includes pjncture needle, its characterized in that: also comprises a detachable tail part;
the puncture needle comprises a needle head and a needle tube which are integrally formed, the needle tube is of a slender cylindrical structure, and the needle head is a blunt cone;
the detachable tail part is provided with an accommodating hole, and the size and the shape of the accommodating hole are matched with the tail part of the needle tube, so that the tail part of the needle tube can be inserted into the accommodating hole and fixed.
2. The centrum piercing guide needle of claim 1, wherein: the tail of the needle tube is provided with an external thread, and a matched internal thread is arranged in the containing hole.
3. The centrum piercing guide needle of claim 1, wherein: the containing hole is internally provided with a spring leaf for clamping the tail part of the needle tube.
4. The centrum piercing guide needle of claim 2 or 3, wherein: the detachable tail part is provided with a shell convenient to hold by hand.
5. The centrum piercing guide needle of claim 1, 2 or 3, wherein: the surface of the needle tube is provided with annular scale marks.
6. The centrum piercing guide needle of claim 5, wherein: the distance between adjacent annular scale marks is 1cm, the annular scale marks at the multiple of 5 are displayed in a bold mode, the annular scale marks are represented by multiple lines, and the number of the lines = the multiple of 5.
7. The centrum piercing guide needle of claim 5, wherein: the diameter of the needle tube is 1-1.5mm, the length of the needle tube is 10-20cm, and the length of the needle head is 1-1.5 mm.
8. The centrum piercing guide needle of claim 5, wherein: the puncture needle is provided with a through hole penetrating through the needle head and the needle tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020697312.3U CN212816455U (en) | 2020-04-30 | 2020-04-30 | Centrum puncture guiding needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020697312.3U CN212816455U (en) | 2020-04-30 | 2020-04-30 | Centrum puncture guiding needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212816455U true CN212816455U (en) | 2021-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020697312.3U Active CN212816455U (en) | 2020-04-30 | 2020-04-30 | Centrum puncture guiding needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212816455U (en) |
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2020
- 2020-04-30 CN CN202020697312.3U patent/CN212816455U/en active Active
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