CN208524984U - A kind of circular arc sting device - Google Patents
A kind of circular arc sting device Download PDFInfo
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- CN208524984U CN208524984U CN201721364211.9U CN201721364211U CN208524984U CN 208524984 U CN208524984 U CN 208524984U CN 201721364211 U CN201721364211 U CN 201721364211U CN 208524984 U CN208524984 U CN 208524984U
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- China
- Prior art keywords
- puncture needle
- casing
- mounting groove
- circular arc
- puncture
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Abstract
The utility model relates to the field of medical instrument technology, in particular to a kind of circular arc sting device, puncture needle and puncture needle casing are the identical circular arc type structure of radius of curvature, puncture needle slide cooperates in puncture needle casing, fixed plate is equipped with the channel passed through for puncture needle, the tube wall of puncture needle casing is equipped with the through slot extended along its arc length direction, and the tail portion of puncture needle is provided with needle handle, which passes through through slot and extend to other than puncture needle casing.The utility model is split type structure, convenient for disinfection and assembling.Puncture needle casing is Open architecture, fixed plate and puncture needle casing can be removed after puncturing successfully, directly to carry out next step operation.The entry point and needle angle when puncture can be accurately controlled, the needle handle that operator holds puncture needle promotes puncture needle to complete to puncture along puncture needle casing.Operate simpler, conveniently, precision greatly improves, and reduces the operating time, reduces maloperation, and patient is avoided to bear unnecessary tissue damage and pain.
Description
Technical field
The utility model relates to the field of medical instrument technology, in particular to a kind of circular arc sting device.
Background technique
The Minimally Interventional Therapy protrasion of the lumbar intervertebral disci is to carry out physics by the way that tiny puncture needle is punctured into lumber ertebral disc
Treat a kind of such as Clinics of plasma, radio frequency, ozone.Minimally Interventional Therapy technology is because its wound is small, treatment is accurate, secondary work
With small, wide indications, postoperative rehabilitation is fast, clinical efficacy is significant the advantages that be widely applied by current medicine.Carrying out lumber ertebral disc
When Minimally Interventional Therapy punctures, to improve the accuracy to puncture of lumbar disc, the guidance in computer tomography CT is needed
Under carry out the puncture hand-manipulating of needle, entry point, depth of needle and needle angle be can accurately measure out by CT；And specifically puncturing inserting needle
When, traditional puncture staight needle is often difficult to the tissue such as accurately reach puncture target spot and do not injure spinal nerve, it is difficult to reach most
Good curative effect.Simple elbow pin puncture easily causes depth of needle and needle angle deviation occur, once angle offset, it is possible to it makes
At puncture needle far from therapy target, in some instances it may even be possible to accidentally wear internal organs important around, blood vessel, nerve, cause related complication, and anti-
Multiple puncture causes patient's CT scan number to increase, and suffered amount of radiation increases, and brings unnecessary tissue damage and pain to patient.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, providing a kind of circular arc sting device.
To solve the above problems, the utility model the following technical schemes are provided:
A kind of circular arc sting device, includes fixed plate, puncture needle and puncture needle casing, and puncture needle and puncture needle casing are
The identical circular arc type structure of radius of curvature, puncture needle slide cooperate in puncture needle casing, and one end of puncture needle casing, which is equipped with, to be supplied
The puncture needle outlet that the front end of puncture needle is pierced by, the both ends of the puncture needle casing and fixed plate are hinged, so that Puncture needle sleeve
Pipe can be connected as axis with two hinge joints and be rotated relative to fixed plate, and fixed plate is equipped with the channel passed through for puncture needle,
The tube wall of puncture needle casing is equipped with the through slot extended along its arc length direction, and the tail portion of puncture needle is provided with needle handle, which wears
It crosses through slot to extend to other than puncture needle casing, puncture needle is hollow structure, is inserted with needle core in puncture needle.
Preferably, one end on the puncture needle casing close to puncture needle outlet is equipped with the first articulated shaft, puncture needle casing
The other end be equipped with the second articulated shaft, the radial direction of the axis of the first articulated shaft and the second articulated shaft each along puncture needle casing
Extend and coaxial line, first articulated shaft extend towards the center of circle direction of puncture needle casing, the second articulated shaft is to away from wearing
The center of circle direction of pricker casing extends, and the first mounting groove and the second mounting groove are provided in fixed plate, and the first mounting groove constitutes institute
The channel passed through for puncture needle is stated, the cell wall of the first mounting groove is equipped with the first shaft hole cooperated with the first articulated shaft, the second installation
The cell wall of slot is equipped with the second axis hole cooperated with the second articulated shaft.
Preferably, it is additionally provided with the first rotating control shaft close to one end of the second articulated shaft on the puncture needle casing, this
The axis of one rotating control shaft is parallel with the axis of the second articulated shaft, and the first fixator is provided in fixed plate, first fixation
Device is equipped with the arc groove cooperated with the first rotating control shaft, and the end of the first rotating control shaft is equipped with external screw thread, the first rotation control
The end of axis processed passes through arc groove and is equipped with locking knob.
Preferably, one end on the puncture needle casing close to the firstth articulated shaft is additionally provided with the second rotating control shaft, should
The axis of second rotating control shaft is parallel with the two the first axis of articulated shaft, the second fixator is provided in fixed plate, this
Two fixators are equipped with the arc groove that cooperate with the second rotating control shaft, and the end of the second rotating control shaft is equipped with external screw thread, and second
The end of rotating control shaft passes through arc groove and is equipped with locking knob.
Preferably, the end of first rotating control shaft is equipped with external screw thread, and the locking device is to control with the first rotation
The locking knob that shaft end portion processed is threadedly engaged.
Preferably, one end of the through slot extends to puncture needle exit, and the first mounting groove is equipped with first communicated therewith
Escape groove, first escape groove extend to form the opening to avoid puncture needle to fixed plate edge.
Preferably, second mounting groove is equipped with the second escape groove communicated therewith, the extending direction of second escape groove
It is consistent with the first escape groove.
Preferably, first mounting groove and the second mounting groove are strip groove body, the first mounting groove and the second installation
The equal length and face of slot are arranged, and the long side of the first mounting groove and the second mounting groove is each perpendicular to the rotation of puncture needle casing
Axis, the rotation axis are in the symmetrical plane of the first mounting groove.
Preferably, the pipe of same size and being slightly larger than puncture needle casing of first mounting groove and the second mounting groove
Diameter.
Preferably, puncture needle and puncture needle casing are the identical semi-circular structure of radius of curvature.
The utility model has the advantages that a kind of circular arc sting device of the utility model, is split type structure, convenient for disinfection and assembling.It wears
Pricker casing is Open architecture, has the through slot removed for puncture needle, and fixed plate can be directly removed after puncturing successfully and is worn
Pricker casing, to carry out next step operation.The entry point and needle angle when puncture can be accurately controlled, operator is hand-held
The needle handle of puncture needle promotes puncture needle to complete to puncture along puncture needle casing.Operate simpler, conveniently, precision mentions significantly
Height reduces the operating time, reduces maloperation, and patient is avoided to bear unnecessary tissue damage and pain.
Detailed description of the invention
Fig. 1 is the schematic perspective view of embodiment 1；
Fig. 2 is the schematic perspective view of embodiment 1；
Fig. 3 is the schematic perspective view of embodiment 1；
Fig. 4 is the dimensional decomposition structure diagram of embodiment 1；
Fig. 5 is the schematic cross-sectional view of embodiment 1；
The schematic perspective view of Fig. 6 embodiment 1；
Fig. 7 is the dimensional decomposition structure diagram of embodiment 1；
Description of symbols: fixed plate 1, puncture needle 2, needle handle 2a, needle core 2b, puncture needle casing 3, through slot 3a, the first hinge
Spindle 3b, the second articulated shaft 3c, the first rotating control shaft 3d, the second rotating control shaft 3e, the first mounting groove 4, first shaft hole
4a, the second mounting groove 5, the second axis hole 5a, the first fixator 6, the second fixator 7, arc groove 8, the first escape groove 9, second keeps away
Allow slot 10.
Specific embodiment
With reference to the accompanying drawings of the specification and embodiment, specific embodiment of the utility model is described in further detail:
Embodiment 1
It include fixed plate 1, puncture needle 2 and puncture needle casing referring to figs. 1 to a kind of circular arc sting device shown in fig. 5
3, puncture needle 2 and puncture needle casing 3 are the identical semicircular structure of radius of curvature, and puncture needle 2 is slidably fitted in puncture needle casing 3
Interior, one end of puncture needle casing 3 is equipped with the puncture needle being pierced by for the front end of puncture needle 2 and exports, the both ends of the puncture needle casing 3
It is hinged with fixed plate 1, it is rotated so that puncture needle casing 3 can be connected as axis with two hinge joints relative to fixed plate 1, Gu
Fixed board 1 is equipped with the channel passed through for puncture needle 2, and the tube wall of puncture needle casing 3 is equipped with the through slot extended along its arc length direction
3a, the tail portion of puncture needle 2 are provided with needle handle 2a, and needle handle 2a passes through through slot 3a and extends to other than puncture needle casing 3, puncture needle 2
For hollow structure, needle core 2b is inserted in puncture needle 2.
On the puncture needle casing 3 close to puncture needle outlet one end be equipped with the first articulated shaft 3b, puncture needle casing 3 it is another
Radius of axis of the one end equipped with the second articulated shaft 3c, the first articulated shaft 3b and the second articulated shaft 3c each along puncture needle casing 3
Direction extends and coaxial line, and the first articulated shaft 3b extends towards the center of circle direction of puncture needle casing 3, the second articulated shaft 3c
Extend to the center of circle direction away from Puncture needle sleeve pipe 3, is provided with the first mounting groove 4 and the second mounting groove 5 in fixed plate 1, first
Mounting groove 4 constitutes the channel passed through for puncture needle 2, and the cell wall of the first mounting groove 4 is equipped with to be cooperated with the first articulated shaft 3b
First shaft hole 4a, the cell wall of the second mounting groove 5 are equipped with the second axis hole 5a cooperated with the second articulated shaft 3c.
When puncturing operation, whole device is fixed on patient back designated position by fixed, passes through the first of coaxial line
Articulated shaft 3b and the second articulated shaft 3c is hinged by puncture needle casing 3 and fixed plate 1, so that puncture needle casing 3 can be relative to
Fixed plate 1 is rotated around fixed axis, to be adjusted to puncture angle.
One end on the puncture needle casing 3 close to the second articulated shaft 3c is additionally provided with the first rotating control shaft 3d, this first
The axis of rotating control shaft 3d is parallel with the axis of the second articulated shaft 3c, the first fixator 6 is provided in fixed plate 1, this first
Fixator 6 is equipped with the arc groove 8 cooperated with the first rotating control shaft 3d, and the end of the first rotating control shaft 3d is equipped with external screw thread,
The end of first rotating control shaft 3d passes through arc groove 8 and is equipped with locking knob.
It is additionally provided with the second rotating control shaft 3e close to one end of the firstth articulated shaft 3c on the puncture needle casing 3, this
The axis of two rotating control shaft 3e is parallel with the two the first axis of articulated shaft 3c, and the second fixator 7 is provided in fixed plate 1,
Second fixator 7 is equipped with the arc groove 8 cooperated with the second rotating control shaft 3e, and the end of the second rotating control shaft 3e is equipped with outer
Screw thread, the end of the second rotating control shaft 3e pass through arc groove 8 and are equipped with locking knob.
The puncture needle casing 3 for adjusting angle can effectively be fixed by locking knob, avoid puncturing operation
Middle angle change influences the piercing angle of puncture needle 2.
One end of the through slot 3a extends to puncture needle exit, and the first mounting groove 4 is equipped with the first evacuation communicated therewith
Slot 9, first escape groove 9 extend to form the opening to avoid puncture needle 2 to 1 edge of fixed plate.
After the completion of puncturing operation, needs to detach fixed plate 1 and 3 entirety of puncture needle casing, to carry out subsequent operation, lead to
Slot 3a, which is extended to, punctures exit, facilitates the separation of puncture needle 2 Yu puncture needle casing 3, the first escape groove during detaching
9 form opening in 1 edge of fixed plate, which may insure efficiently separating and will not colliding fixed plate for puncture needle 2
1, it avoids because causing patient uncomfortable the collision of puncture needle 2 during detaching.
Second mounting groove 5 is equipped with the second escape groove 10 for communicating therewith, the extending direction of second escape groove 10 with
First escape groove 9 is consistent.
First escape groove 9 and the cooperation of the second escape groove 10, facilitate the installation and dismounting of puncture needle casing 3.
First mounting groove 4 and the second mounting groove 5 are strip groove body, the first mounting groove 4 and the second mounting groove 5
The long side of equal length and face setting, the first mounting groove 4 and the second mounting groove 5 is each perpendicular to the rotation of puncture needle casing 3
Axis, the rotation axis are in the symmetrical plane of the first mounting groove 4.
First mounting groove 4 and the second mounting groove 5 make the rotation axis of puncture needle casing 3 be in first positive setting
In the symmetrical plane of mounting groove 4, that is, the angular range for guaranteeing that puncture needle casing 3 is rotated to two sides is consistent.
The caliber of same size and being slightly larger than puncture needle casing 3 of first mounting groove 4 and the second mounting groove 5.
Because needing that puncture needle should be avoided as far as possible during adjustment angle by adjusting the angle of puncture needle casing 3
Casing 3 is located at along its rotation axis direction, therefore the first mounting groove 4 and the second mounting groove 5 are designed as strip slot, long
Bar shaped to width be preferably only slightly larger than the caliber of puncture needle casing 3.
Embodiment 2
Schematic perspective view is as shown in Figure 6, and decomposition diagram is as shown in Figure 7.Basic structure exists with embodiment 1, difference
In only left end, the first fixator 6 and corresponding first rotating control shaft 3d and locking device are set；And 1 right end of fixed plate is not set
Second fixator 7, the not set second rotating control shaft 3e of 3 right end of puncture needle casing and locking device.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model
Any restrictions out, thus it is any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent
Variation and modification, in the range of still falling within the technical solution of the utility model.
Claims (9)
1. a kind of circular arc sting device, it is characterised in that: include fixed plate (1), puncture needle (2) and puncture needle casing (3), wear
Pricker (2) and puncture needle casing (3) are the identical circular arc type structure of radius of curvature, and puncture needle (2) is slidably fitted in Puncture needle sleeve
It manages in (3), one end of puncture needle casing (3) is equipped with the puncture needle being pierced by for the front end of puncture needle (2) and exports, the Puncture needle sleeve
The both ends and fixed plate (1) for managing (3) hingedly so that can be connected as axis with two hinge joints opposite for puncture needle casing (3)
It is rotated in fixed plate (1), fixed plate (1) is equipped with the channel passed through for puncture needle (2), sets on the tube wall of puncture needle casing (3)
There is the through slot (3a) extended along its arc length direction, the tail portion of puncture needle (2) is provided with needle handle (2a), which passes through through slot
(3a) is extended to other than puncture needle casing (3), and puncture needle (2) is hollow structure, is inserted with needle core (2b) in puncture needle (2).
2. a kind of circular arc sting device according to claim 1, it is characterised in that: close on the puncture needle casing (3)
One end of puncture needle outlet is equipped with the first articulated shaft (3b), and the other end of puncture needle casing (3) is equipped with the second articulated shaft (3c), the
The axis of one articulated shaft (3b) and the second articulated shaft (3c) each along puncture needle casing (3) radial direction extend and it is coaxial
Line, first articulated shaft (3b) extend towards the center of circle direction of puncture needle casing (3), and the second articulated shaft (3c) is to away from puncture
The center of circle direction of needle cannula (3) extends, and the first mounting groove (4) and the second mounting groove (5), the first peace are provided in fixed plate (1)
Tankage (4) constitutes the channel passed through for puncture needle (2), and the cell wall of the first mounting groove (4) is equipped with and the first articulated shaft (3b)
The first shaft hole (4a) of cooperation, the cell wall of the second mounting groove (5) are equipped with the second axis hole (5a) cooperated with the second articulated shaft (3c).
3. a kind of circular arc sting device according to claim 2, it is characterised in that: close on the puncture needle casing (3)
One end of second articulated shaft (3c) is additionally provided with the first rotating control shaft (3d), the axis and second of first rotating control shaft (3d)
The axis of articulated shaft (3c) is parallel, and the first fixator (6) are provided in fixed plate (1), which is equipped with and first
The arc groove (8) of rotating control shaft (3d) cooperation, the end of the first rotating control shaft (3d) are equipped with external screw thread, the first rotation control
The end of axis (3d) passes through arc groove (8) and is equipped with locking knob.
4. a kind of circular arc sting device according to claim 2 or 3, it is characterised in that: leaned on the puncture needle casing (3)
One end of nearly first articulated shaft (3c) is additionally provided with the second rotating control shaft (3e), the axis of second rotating control shaft (3e) and
The axis of 2 first articulated shafts (3c) is parallel, and the second fixator (7) are provided in fixed plate (1), which is equipped with
With the arc groove (8) of the second rotating control shaft (3e) cooperation, the end of the second rotating control shaft (3e) is equipped with external screw thread, the second rotation
The end for turning control shaft (3e) passes through arc groove (8) and is equipped with locking knob.
5. a kind of circular arc sting device according to claim 4, it is characterised in that: one end of the through slot (3a) extends to
Puncture needle exit, the first mounting groove (4) are equipped with the first escape groove (9) for communicating therewith, and first escape groove (9) is to fixed plate
(1) edge extends to form the opening to avoid puncture needle (2).
6. a kind of circular arc sting device according to claim 5, it is characterised in that: second mounting groove (5) be equipped with
Its second escape groove (10) being connected to, the extending direction and the first escape groove (9) of second escape groove (10) are consistent.
7. a kind of circular arc sting device according to claim 6, it is characterised in that: first mounting groove (4) and second
Mounting groove (5) is strip groove body, equal length and the face setting of the first mounting groove (4) and the second mounting groove (5), the
The long side of one mounting groove (4) and the second mounting groove (5) is each perpendicular to the rotation axis of puncture needle casing (3), at the rotation axis
In in the symmetrical plane of the first mounting groove (4).
8. a kind of circular arc sting device according to claim 7, it is characterised in that: first mounting groove (4) and second
The caliber of same size and being slightly larger than puncture needle casing (3) of mounting groove (5).
9. a kind of circular arc sting device according to claim 2 or 3, it is characterised in that: puncture needle (2) and puncture needle casing
It (3) is the identical semicircular structure of radius of curvature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721364211.9U CN208524984U (en) | 2017-10-20 | 2017-10-20 | A kind of circular arc sting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721364211.9U CN208524984U (en) | 2017-10-20 | 2017-10-20 | A kind of circular arc sting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208524984U true CN208524984U (en) | 2019-02-22 |
Family
ID=65399742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721364211.9U Withdrawn - After Issue CN208524984U (en) | 2017-10-20 | 2017-10-20 | A kind of circular arc sting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208524984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107854163A (en) * | 2017-10-20 | 2018-03-30 | 南京鼓楼医院 | A kind of circular arc sting device |
-
2017
- 2017-10-20 CN CN201721364211.9U patent/CN208524984U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107854163A (en) * | 2017-10-20 | 2018-03-30 | 南京鼓楼医院 | A kind of circular arc sting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190222 Effective date of abandoning: 20191011 |
|
| AV01 | Patent right actively abandoned |