CN210962238U - Cervical vertebra percutaneous puncture guiding needle - Google Patents
Cervical vertebra percutaneous puncture guiding needle Download PDFInfo
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- CN210962238U CN210962238U CN201921469392.0U CN201921469392U CN210962238U CN 210962238 U CN210962238 U CN 210962238U CN 201921469392 U CN201921469392 U CN 201921469392U CN 210962238 U CN210962238 U CN 210962238U
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- guide sleeve
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Abstract
The utility model discloses a cervical vertebra percutaneous puncture guiding needle, which comprises a guide sleeve and a needle core positioned in the guide sleeve, wherein the head part of the guide sleeve is of an outward convex cambered surface structure, the head part of the needle core is of a sharp structure, the head part of the needle core is provided with an external thread, the tail part of the needle core penetrates out from the tail part of the guide sleeve and internally rotates in the thread at the tail part of the guide sleeve, and the head part of the guide sleeve is provided with a hole for the head part of the needle core to penetrate out; the utility model discloses a blunted structure of guide pin bushing can effectively avoid the neurovascular in the soft tissue in the puncture process, the guide pin bushing still plays the guide effect to the nook closing member and confirms whether suitable effect of puncture target point, the nook closing member can be rotated on the cortex of bone surface through the syringe needle and played the anchor effect, be convenient for X line perspective confirm the target point position, can avoid the guide pin bushing skew to lead to the target point dislocation; the guiding needle can be matched with a Kirschner wire, a percutaneous screw instrument and a percutaneous endoscope instrument for use, so that the next step of the operation is facilitated.
Description
Technical Field
The utility model belongs to the technical field of the medical treatment, a cervical vertebra percutaneous aspiration guide needle is related to.
Background
Present backbone percutaneous puncture apparatus all designs based on lumbar vertebrae and thoracic vertebra, and the pjncture needle is sharp needle point to the pjncture needle is longer, and the afterbody handle is heavier, and the spine structure can't effectively be stabilized on the cortex surface, to cervical vertebra especially atlantoaxial department, and neural blood vessel is intensive, directly extremely easily harms neural blood vessel through the pjncture needle puncture of sharp, and the potential safety hazard is very big, and this type of puncture apparatus can't be applicable to the puncture of cervical vertebra especially atlantoaxial department.
Therefore, based on the above problems, there is a need for a cervical percutaneous puncture guiding needle, which is suitable for the puncture of the cervical vertebra, especially the atlantoaxial region, can effectively avoid the damage of nerve vessels, has high safety, and can be used in connection with the existing percutaneous screw instruments and percutaneous endoscope instruments.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a cervical vertebra percutaneous puncture guide needle, this guide needle is applicable to the puncture of cervical vertebra especially atlantoaxial department, can effectively avoid neurovascular's damage, and the security is high, and this guide needle can also link up present percutaneous screw apparatus and percutaneous endoscope apparatus and use.
The utility model discloses a cervical vertebra percutaneous aspiration guide needle, including the guide pin bushing, be located the nook closing member in the guide pin bushing, the guide pin bushing head is the cambered surface structure of evagination, the nook closing member head is sharp-pointed column structure, the nook closing member head has the external screw thread, the nook closing member afterbody is worn out and is screwed in the guide pin bushing afterbody in the screw thread from the guide pin bushing afterbody, the guide pin bushing head has the trompil that supplies the nook closing member head to wear out.
Furthermore, the tail part of the guide sleeve is externally connected with a cushion block, and the tail part of the needle core is screwed in the cushion block through threads.
Further, the stylet is of a stepped shaft structure with a small head and a large tail, and the large diameter section at the tail of the stylet is provided with an external thread used for being in threaded connection with the tail of the guide sleeve.
Furthermore, the diameter of the needle core is 1.2-2.0mm, and the outer diameter of the guide sleeve is 2.5-3.5 mm.
Further, the guide sleeve head section is provided with an inner conical surface structure with the inner diameter gradually reduced towards the end part.
Furthermore, a handle is externally connected to the tail end of the stylet.
Furthermore, the upper end of the handle is of a plane structure, and the lower end of the handle is of a spherical structure.
Furthermore, the lower end of the handle is provided with anti-skid grains.
The utility model has the advantages that:
the utility model discloses a blunted structure of guide pin bushing can effectively avoid the neurovascular in the soft tissue in the puncture process, the guide pin bushing still plays the guide effect to the nook closing member and confirms whether suitable effect of puncture target point, the nook closing member can be rotated on the cortex of bone surface through the syringe needle and played the anchor effect, be convenient for X line perspective confirm the target point position, can avoid the guide pin bushing skew to lead to the target point dislocation; the guiding needle can be matched with a Kirschner wire, a percutaneous screw instrument and a percutaneous endoscope instrument for use, so that the next step of the operation is facilitated.
Drawings
The invention is further described with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention (the head of the stylet is located in the guide sleeve);
FIG. 2 is a schematic structural view of the present invention (the head of the stylet is screwed outside the guide sleeve);
FIG. 3 is a schematic view of the structure of the guide sleeve;
Detailed Description
FIG. 1 is a schematic structural view of the present invention (the head of the stylet is located in the guide sleeve); FIG. 2 is a schematic structural view of the present invention (the head of the stylet is screwed outside the guide sleeve); FIG. 3 is a schematic view of the structure of the guide sleeve;
as shown in the figure: the embodiment provides a cervical vertebra percutaneous puncture guiding needle, which comprises a guide sleeve 1 and a needle core 2 positioned in the guide sleeve, wherein the head of the guide sleeve is of a convex cambered surface structure, the head of the needle core is of a sharp structure, the head of the needle core is provided with external threads, the tail of the needle core penetrates out of the tail of the guide sleeve and is screwed in the tail of the guide sleeve in the threads, and the head of the guide sleeve is provided with an opening through which the head of the needle core penetrates out; the head of the needle core is a pointed screw structure similar to a self-tapping screw, wherein the tail of the guide sleeve can be of two structures, the tail of the first guide sleeve is a closed structure, the end of the tail is provided with an internal thread hole, the tail of the second guide sleeve is an open structure, the inner wall of the tail section of the guide sleeve is provided with an internal thread structure, the first structure is taken as an example in the embodiment, the tail section of the needle core is provided with external threads, the internal thread hole of the tail of the guide sleeve is in threaded connection with the tail section of the needle core, the guide needle is mainly used for operations behind the atlantoaxial, the head of the guide sleeve is designed into a blunt head structure in a cambered surface structure form due to the existence of spinal nerves and vertebral arteries on the lateral mass surface behind the atlantoaxial, the head of the guide sleeve in the embodiment is specifically in a surface structure, of course, the head of the guide sleeve can also be in, the needle core is rotated to rotate the needle head of the needle core to the outside of the guide sleeve, the guide sleeve plays a role in guiding the needle core, the needle head is rotatably arranged in cortical bone to play a role in temporary anchoring, whether a target point puncture point is proper is confirmed through X-ray perspective, if not, the needle head is screwed out to search the target point again, if so, the guide sleeve is stabilized, the needle core is screwed out, a Kirschner wire with scales of 30cm is arranged in the guide sleeve and is arranged in the cortical bone depth of about 3-4mm along the puncture point, and after the proper position is confirmed through X-ray perspective again, a percutaneous endoscope or a percutaneous screw can be sleeved on the Kirschner wire to perform percutaneous endoscopic operation or be arranged in the percutaneous screw along the Kirschner wire; the structure can effectively avoid the nerve vessels in soft tissues in the puncture process through the blunt head structure of the guide sleeve, the guide sleeve also plays a role in guiding the needle core and confirming whether the puncture target is proper or not, the needle core 2 can be rotated on the surface of the cortex of the bone through the needle head to play an anchoring role, the position of the target can be conveniently confirmed through X-ray fluoroscopy, and the target dislocation caused by the deviation of the guide sleeve can be avoided;
the tail part of the guide sleeve is externally connected with a cushion block 3, and the tail part thread of the needle core is internally screwed in the cushion block; this cushion can be the cylinder structure, perhaps the usable current nut structure of cushion, and the cushion has passed through welded fastening and has connected in the guide pin bushing afterbody, provides sufficient holding power for the nook closing member when the nook closing member revolves in the cortex of bone matter.
The needle core 2 is of a stepped shaft structure with a small head and a large tail, and the large diameter section at the tail of the needle core is provided with an external thread for being in threaded connection with the tail of the guide sleeve; this structure is convenient for taking out of nook closing member, extracts in the internal thread hole to the guide pin bushing afterbody for guaranteeing the path section of nook closing member smoothly, and the internal thread path of guide pin bushing afterbody should be greater than the external diameter of the path of nook closing member, and the major diameter section diameter of nook closing member is great relatively, easily processes the screw thread, and this major diameter section intensity is great, can bear great moment of torsion.
The diameter of the needle core is 1.2-2.0mm, and the outer diameter of the guide sleeve is 2.5-3.5 mm; preferably, the outer diameter of the guide sleeve is 3mm, the diameter of the needle core is preferably 1.2mm, 1.5mm or 2.0mm, and surgical puncture is facilitated by controlling the diameters of the guide sleeve and the needle core.
The guide sleeve head section is provided with an inner conical surface structure with the inner diameter gradually reduced towards the end part; in the outward rotation process of the needle core, the inner conical surface structure can guide the head of the needle core to move towards the opening of the head of the guide sleeve, and the operation precision of the needle core is improved.
A handle 4 is externally connected to the tail end of the stylet; the rotatory in-process of putting into the cortex of bone at the syringe needle, the needle core is rotated to the handheld handle of accessible, and the handheld needle core operation of medical personnel of being convenient for, handle structure can be cross structure, disc structure or butterfly structure, and is specifically not being repeated.
In this embodiment, the upper end of the handle is of a planar structure, and the lower end of the handle is of a spherical structure; the spherical structure is convenient for the medical care personnel to operate by hands, and is particularly suitable for the holding rotation of two fingers.
In the embodiment, the lower end of the handle is provided with anti-skid grains; the antiskid line is knurling, stripe or other texture structure, and during the use, medical personnel's accessible thumb and forefinger are held between the fingers the outside profile of holding this handle and are realized the rotation to the nook closing member, are convenient for handheld operation.
In this embodiment, thereby control the length that the stylet head is exposed in the guide pin bushing through the control stylet afterbody sets up the major diameter section axial length of external screw thread, and the preferred control needle point exposes in the length that the guide pin bushing head is outside 3-5mm to the control stylet bores the degree of depth in the cortex of bone, leads to the damage nerve blood vessel in order to avoid boring into the cortex of bone deeply.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (8)
1. The utility model provides a cervical vertebra percutaneous aspiration guide needle which characterized in that: the needle core comprises a guide sleeve and a needle core positioned in the guide sleeve, the head of the guide sleeve is of a convex cambered surface structure, the head of the needle core is of a sharp-pointed structure, the head of the needle core is provided with external threads, the tail of the needle core penetrates out of the tail of the guide sleeve and is screwed in the tail of the guide sleeve, and the head of the guide sleeve is provided with a hole for the head of the needle core to penetrate out.
2. The cervical percutaneous puncture guide needle according to claim 1, wherein: the tail of the guide sleeve is externally connected with a cushion block, and the tail thread of the needle core is internally screwed in the cushion block.
3. The cervical percutaneous puncture guide needle according to claim 1, wherein: the stylet is of a stepped shaft structure with a small head and a large tail, and the large diameter section at the tail of the stylet is provided with an external thread used for being in threaded connection with the tail of the guide sleeve.
4. The cervical percutaneous puncture guide needle according to claim 1, wherein: the diameter of the needle core is 1.2-2.0mm, and the outer diameter of the guide sleeve is 2.5-3.5 mm.
5. The cervical percutaneous puncture guide needle according to claim 1, wherein: the guide sleeve head section is provided with an inner conical surface structure with the inner diameter gradually reduced towards the end part.
6. The cervical percutaneous puncture guide needle according to claim 1, wherein: the tail end of the stylet is externally connected with a handle.
7. The cervical percutaneous puncture guide needle according to claim 6, wherein: the upper end of the handle is of a plane structure, and the lower end of the handle is of a spherical structure.
8. The cervical percutaneous puncture guide needle according to claim 7, wherein: the lower end of the handle is provided with anti-skid lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469392.0U CN210962238U (en) | 2019-09-05 | 2019-09-05 | Cervical vertebra percutaneous puncture guiding needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469392.0U CN210962238U (en) | 2019-09-05 | 2019-09-05 | Cervical vertebra percutaneous puncture guiding needle |
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| Publication Number | Publication Date |
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| CN210962238U true CN210962238U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921469392.0U Active CN210962238U (en) | 2019-09-05 | 2019-09-05 | Cervical vertebra percutaneous puncture guiding needle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113081156A (en) * | 2021-04-21 | 2021-07-09 | 广州市第一人民医院（广州消化疾病中心、广州医科大学附属市一人民医院、华南理工大学附属第二医院） | Novel traction device |
-
2019
- 2019-09-05 CN CN201921469392.0U patent/CN210962238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113081156A (en) * | 2021-04-21 | 2021-07-09 | 广州市第一人民医院（广州消化疾病中心、广州医科大学附属市一人民医院、华南理工大学附属第二医院） | Novel traction device |
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