CN206587015U - Spinal needle - Google Patents
Spinal needle Download PDFInfo
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- CN206587015U CN206587015U CN201621023222.6U CN201621023222U CN206587015U CN 206587015 U CN206587015 U CN 206587015U CN 201621023222 U CN201621023222 U CN 201621023222U CN 206587015 U CN206587015 U CN 206587015U
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- needle
- needle body
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- stand
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Abstract
The utility model discloses a kind of spinal needle, the spinal needle includes：The support needle body of inner hollow, and needle body, nook closing member and needle core base are penetrated, the front end for penetrating needle body is provided with delivery hole；Wherein the front end of support needle body is connected to needle stand provided with needle body, the rear end of support needle body is penetrated, and nook closing member on-fixed is arranged at the support needle body and penetrating inside needle body positioned at front end, and the other end of nook closing member is connected to needle core base, and needle core base is located at needle stand rear.The utility model is by adding support needle body, it is ensured that penetrate the external structure intensity of needle body, to allow the caliber for penetrating needle body more tiny, and then reduces the damage to tissue.
Description
Technical field
The utility model is related to medical instruments field, more particularly to portion containing puncture and the spinal needle of supporting part.
Background technology
Subarachnoid anesthesia is also known as lumbar anesthesia, is that local anaesthetics is injected into ubarachnoid block nerve root to reach anesthesia effect
Really.In the prior art, the medicine equipment of subarachnoid anesthesia mainly spinal needle, its structure mainly includes spinal needle
Insertion lumbar anesthesia nook closing member in stainless steel lumbar anesthesia needle tubing, lumbar anesthesia needle tubing is connected with seat, lumbar anesthesia needle stand, lumbar anesthesia nook closing member is arranged on needle core base
On, the port of lumbar anesthesia nook closing member and the end of lumbar anesthesia needle tubing cooperatively form inclined edge, puncture and enter after cavum subarachnoidale, by lumbar anesthesia nook closing member
Extract, then injected anaesthetic by lumbar anesthesia needle tubing, realize anesthesia.
At present, the caliber of the puncture needle of existing spinal needle is thicker, in puncture process, not only to the damage of tissue
It is bigger, and the probability that cerebrospinal fluid leak outside at endorchis cut is higher, thus generation Headache and other complication is several
Rate is also higher.
Therefore, at present clinically be badly in need of want a kind of tissue damage small and low complication spinal needle product.
Utility model content
The utility model purpose is just to provide that a kind of tissue damage is small and spinal needle product of low complication.The utility model
Low damage lumbar anesthesia needle device, by adding support needle body, it is ensured that penetrate needle body external structure intensity, puncture it is smooth, with
Allow the caliber for penetrating needle body more tiny, and then reduce the damage to tissue.
In first aspect of the present utility model there is provided a kind of spinal needle, the spinal needle includes：The support of inner hollow
Needle body, and penetrate needle body, nook closing member and needle core base；
Wherein, the front end for penetrating needle body is provided with delivery hole；
It is described to penetrate the front end that needle body is fixedly installed on the support needle body,
The nook closing member on-fixed is arranged at the support needle body and positioned at the inside that needle body is penetrated described in front end；
Wherein, under the cross-sectional area S1 of described support needle body and the cross-sectional area S2 for penetrating needle body are met
Formula：S1 ＞ S2；
The length L1 and the length L2 for penetrating needle body of the support needle body meet following formula：L1 is more than or equal to L2；
Also, the bend resistance ability Z1 and the bend resistance ability Z2 for penetrating needle body of the support needle body meet following formula：
Z1 ＞ Z2.
In another preference, described support needle body and the region penetrated outside both needle bodies front end are cylindrical structure.
In another preference, the ratio between the sectional area S1 and sectional area S2 S1/S2 are 1.2-10, preferably 1.5-8, more
Good ground 2-6, most preferably 2.5-5.
In another preference, under the wall thickness h1 of the support needle body is met with the wall thickness h2 for penetrating needle body
Formula：H1/h2=0.3-5.0.
In another preference, the external diameter numerical value of the support needle body is 0.5-2.5mm, preferably 0.80-1.0mm.
In another preference, the external diameter numerical value for penetrating needle body is 0.2-2.0mm, preferably 0.40-0.60mm.
In another preference, described spinal needle is additionally provided with the first needle stand, wherein described support needle body is fixed on institute
The first needle stand stated.
In another preference, the needle core base is fixedly connected on the near-end of nook closing member.
In another preference, the needle core base is movably nested in the rear end of first needle stand.
In another preference, first needle stand is also fixed to be connected to a limiting plate, and the support needle body is described in
Limiting plate.
In another preference, described spinal needle is additionally provided with pressure sensor.
In another preference, described pressure sensor is arranged at support needle body afterbody.
In another preference, the pressure sensor can be unloaded from support needle body afterbody.
In another preference, described pressure sensor is arranged in the first described needle stand.
In another preference, described spinal needle is additionally provided with signal radiated element, the signal radiated element with it is described
Pressure sensor is connected, for the transducing signal of the pressure sensor to be transmitted into processor (such as single-chip microcomputer).
In another preference, described is emitted as wireless transmission.
In another preference, described is emitted as Bluetooth transmission.
In another preference, when the transducing signal based on described pressure sensor, the processor (such as single-chip microcomputer)
Detect corresponding to when penetrating side endorchis, pressure is die-offed, and the processor sends the cue for penetrating side endorchis
(such as auditory tone cues).
In another preference, when the transducing signal based on described pressure sensor, the processor (such as single-chip microcomputer)
Detect when changing corresponding to the support needle body characteristic pressure that bends or bend, the processor sends alarm signal
(such as auditory tone cues).
In another preference, described alarm signal prompting operator needs to change spinal needle.
In another preference, described alarm signal prompting operator has the risk for occurring spinal needle bending.
In another preference, the pressure in the described whole puncture of processor record and/or anaesthesia process, for rear
(such as lumbar muscle strain and the relation for puncturing the pressure change run into, the disease of patient is would know that by the change of pressure for continuous analysis
Feelings).
In another preference, the material of described support needle body is selected from the group：Stainless steel, alloy.
In another preference, described support needle body is provided with instruction area (or the graduation indication for indicating paracentesis depth
Area).
In another preference, described support needle body outer surface is provided with coating or coating.
In another preference, the coating or coating are resin bed or the coat of metal.
In another preference, the coating is provided with 1-10 scale zone.
In another preference, multiple scale zones have identical or different color.
In another preference, the coating is made up of the material of different colours, and the different colours represent different depths
Degree.
In another preference, described different colors are gradient color.
In another preference, the L1 is 40mm-200mm, preferably 50mm-150mm；And/or
The L2 is 3-50mm, preferably 5mm-30mm.
In another preference, the tip for penetrating needle body is pyramidal structure or inclined opening structure.
In second aspect of the present utility model there is provided a kind of low damage spinal needle, the spinal needle includes：Inner hollow
Support needle body, and penetrate needle body, nook closing member and needle core base；
Wherein, the front end for penetrating needle body is provided with delivery hole；
The needle body on-fixed that penetrates is arranged inside the support needle body；
The needle body inside on-fixed that penetrates is provided with the nook closing member；
The support needle body tail end is provided with the first needle stand for fixing the support needle body；
The needle body tail end that penetrates is provided with the second needle stand for penetrating needle body described in fixed；
Wherein, the cross-sectional area S1 of the described support needle body and cross-sectional area S2 for penetrating needle body meets following formula：S1
＞ S2；
The length L1a and the length L2a for penetrating needle body of the support needle body meet following formula：L1a ＜ L2a；
Also, the bend resistance ability Z1 and the bend resistance ability Z2 for penetrating needle body of the support needle body meet following formula：Z1 ＞
Z2。
In another preference, second needle stand is provided with linkage section, and the linkage section is provided with screw thread.
In another preference, first needle stand is provided with the screwed hole matched with the screw thread, for by described in
Second needle stand is connected with the first needle stand spiral.
In another preference, second needle stand is provided with linkage section, and first needle stand is provided with through hole；
Also, the linkage section is slidably socketed in the through hole, for by second needle stand and first needle stand
It is slidably socketed.
In another preference, first needle stand is also fixed to be connected to a limiting plate, and the support needle body is described in
Limiting plate.
In another preference, described L1a is 20-150mm, preferably 20mm-80mm；And/or
Described L2a is 25-200mm, preferably 25mm-180mm.
In another preference, L2a-L1a difference DELTA La is 3-100mm, preferably 5mm-60mm.
In another preference, the tip for penetrating needle body is pyramidal structure or inclined opening structure.
In another preference, the region of described support needle body in addition to front end is cylindrical structure.
In another preference, the region in addition to front end for penetrating needle body is cylindrical structure.
In another preference, the needle core base is fixedly connected on the near-end of nook closing member.
In the third aspect of the present utility model, there is provided a kind of portion containing puncture and the spinal needle of supporting part, the spinal needle
Including：Needle body, needle stand and optional nook closing member；
Wherein, the needle body is sequentially provided with needle body puncture portion and needle body supporting part under puncture state from distal end to near-end,
And the front end in the needle body puncture portion is provided with delivery hole；
The nook closing member is movably nested in inside the needle body；With
The needle stand is fixedly connected on the near-end of the needle body；
Wherein, under the cross-sectional area S1 of the described needle body supporting part and cross-sectional area S2 in needle body puncture portion is met
Formula：S1 ＞ S2；
Also, the bend resistance ability Z1 of the needle body supporting part and bend resistance ability Z2 in the needle body puncture portion is met
Following formula：Z1 ＞ Z2.
In another preference, described needle body puncture portion and needle body supporting part is integral.
In another preference, round and smooth transition zone is provided between described needle body puncture portion and needle body supporting part.
In another preference, described needle body puncture portion and needle body supporting part is separate.
In another preference, described spinal needle includes the first needle body and the second needle body, wherein, the needle body supporting part
For the first needle body；And first needle body is placed in the second needle body, and second needle body fore-end be it is exposed, from
And constitute described needle body puncture portion.
In another preference, the internal diameter D1 of the needle body of outside diameter d 2 and first in described needle body puncture portion is met：D2 ＜
D1。
In another preference, the ratio between the D1 and d2 D1/d2 are 1.1-3, preferably 1.2-2, more preferably 1.3-1.8,
Most preferably 1.4-1.6.
In another preference, from the near-end of the spinal needle to distal direction, described the first needle body (or corresponding pin
Body supporting part) diameter be essentially identical, or (the ratio between diameter and distal diameter of near-end are 1.0-1.5) tapered into.
In another preference, from the near-end of the spinal needle to distal direction, the diameter of the second described needle body is base
This identical.
In another preference, the spinal needle is additionally provided with needle core base, and the needle core base is fixedly connected on the near-end of nook closing member.
In another preference, the needle stand only includes the first needle stand.
In another preference, the needle stand includes the first needle stand and the second needle stand.
In another preference, the needle core base is movably socketed on the needle stand.
It should be understood that in the range of the utility model, above-mentioned each technical characteristic of the present utility model and below (as implemented
Example) in specifically describe each technical characteristic between can be combined with each other, so as to constitute new or preferred technical scheme.It is limited to
Length, this is no longer going to repeat them.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of low damage lumbar anesthesia needle device in the utility model one embodiment；
Fig. 2 is the normal section structural representation corresponding to Fig. 1；
Fig. 3 is the mplifying structure schematic diagram corresponding to a-quadrant in Fig. 2；
Fig. 4 is the dimensional structure diagram of low damage lumbar anesthesia needle device in the utility model one embodiment；
Fig. 5 is the normal section structural representation corresponding to Fig. 4；
Fig. 6 is the mplifying structure schematic diagram corresponding to B regions in Fig. 5；
Fig. 7 is corresponding to the structural representation that needle body is supported in Fig. 5；
Fig. 8 is corresponding to the structural representation that needle body is penetrated in Fig. 5.
Embodiment
The present inventor develops a kind of spinal needle, the spinal needle is provided with support first by in-depth study extensively
Needle body, and the support needle body, using bodkin design, support needle body is connected with corresponding needle stand, strengthens the toughness of needle body,
It may insure that puncture is smooth；The front end of the support needle body provided with diameter it is smaller than support needle body penetrate needle body, and described penetrate
Needle body is designed using fine needle, can reduce the damage to tissue in puncture process；The lumbar anesthesia needle device is provided with limiting plate,
The limiting plate can play the depth of needle of limitation support needle body, so as to be effectively reduced the damage and increasing to tissue
The accuracy of strong anesthesia work, on this basis, completes the utility model.
Term
As used herein, term " spinal needle ", " lumbar anesthesia needle device " and " low damage spinal needle " are used interchangeably.
As used herein, term " the utility model spinal needle " and " low damage spinal needle of the present utility model " is interchangeable makes
With.
As used herein, for spinal needle, term " distal end " refers to the cutting tip or penetrating end of spinal needle；" near-end " refers to
The handheld terminal or non-piercing end of spinal needle.
As used herein, term " puncture state " generally includes the first puncture state and the second puncture state, described first
Puncture state refers to that the delivery hole of the spinal needle is located at the state outside cavum subarachnoidale；The second puncture state is referred to
The delivery hole of the spinal needle is located at the state in cavum subarachnoidale.As nothing separately illustrates that " puncture state " described herein refers to
First, second puncture state punctures the state of completion.
It should be noted that in the claim and specification of this patent, such as first and second or the like relation
Term is used merely to make a distinction an entity or operation with another entity or operation, and not necessarily requires or imply
There is any this actual relation or order between these entities or operation.Moreover, term " comprising ", "comprising" or its
Any other variant is intended to including for nonexcludability so that process, method, article including a series of key elements or
Equipment not only includes those key elements, but also other key elements including being not expressly set out, or also include be this process,
Method, article or the intrinsic key element of equipment.In the absence of more restrictions, by wanting that sentence " including one " is limited
Element, it is not excluded that also there is other identical element in the process including the key element, method, article or equipment.
As used herein, when term " bending " is referred to by certain positive and/or lateral resistance, needle body bends or bent
Situation.
As used herein, when term " bend resistance ability " is referred to by certain positive and/or lateral resistance, needle body does not occur curved
Bent or bending ability.The bend resistance ability is relative, and available conventional method is tested.For example, for a set pattern
The object of the elongated shape of lattice, its bend resistance ability is available to cause the critical applying power bent to represent.Generally, this is critical
Applying power is bigger, means that bend resistance ability is bigger.Due to the support needle body (or needle body supporting part) of the utility model spinal needle
Using rational structure (such as wall thickness big, diameter is big), therefore its bend resistance ability is significantly better than and penetrates needle body (or needle body is punctured
Portion) bend resistance ability, that is, support the bend resistance ability Z1 of needle body and penetrate the bend resistance ability Z2 of needle body and meet following formula：Z1
＞ Z2.
Spinal needle
The utility model provides a kind of novel spinal needle (or device), described spinal needle for example of the present utility model the
First, described in second or third aspect.
In the utility model first and second aspect support needle body correspond to the third aspect in needle body supporting part or
First needle body.
In the utility model first and second aspect penetrate needle body corresponding to the needle body puncture portion in the third aspect or
The exposed front end of second needle body.
Typically, spinal needle of the present utility model includes：The support needle body of inner hollow, and penetrate needle body, nook closing member and
Needle core base, delivery hole is provided with the front end for penetrating needle body；Wherein, the needle body that penetrates is fixedly installed on the support needle body
Front end, the nook closing member on-fixed is arranged at the support needle body and penetrating inside needle body positioned at front end.
Preferably, described support needle body and the region penetrated outside both needle bodies front end are cylindrical structure.
In another preference, the lumbar anesthesia needle device includes：The support needle body of inner hollow, and penetrate needle body, pin
Core and needle core base, delivery hole is provided with the front end for penetrating needle body；Support needle body tail end is provided with the first needle stand, correspond to penetrate
Needle body tail end is provided with the second needle stand, and the needle body on-fixed that penetrates is arranged inside the support needle body, described to penetrate needle body
Internal on-fixed is provided with the nook closing member.
In addition, linkage section can be provided with second needle stand, and the linkage section is provided with screw thread；And first needle stand
Provided with the screwed hole matched with the screw thread, for second needle stand to be connected with the first needle stand spiral.
In addition, second needle stand is provided with linkage section, first needle stand is provided with through hole；And the linkage section is slided
It is socketed in the through hole, for second needle stand to be slidably socketed with first needle stand.
In another preference, in the utility model, instruction area is preferably provided with support needle body (or supporting part) outer surface
(or graduation indication area), the depth punctured so as to the needle body puncture portion.Described instruction area can be trickle depression or convex
Rise or by coating or coating formed by being sprayed or electroplated in support needle body outer surface etc..
In another preference, the needle body supporting part is structure thicker or ruggedized construction.For example, in another preference
In, the wall thickness of the support needle body (or supporting part) is more than the wall thickness for penetrating needle body (or needle body puncture portion).
In another preference, the needle body includes the first needle body and the second needle body；First needle body is the needle body
Supporting part；First needle body is placed in second needle body, the nook closing member is located inside second needle body；Second pin
Body from first needle body pass when, the part that second needle body exposes be the needle body puncture portion.
In the utility model, the tail end of the needle body supporting part can be provided with first needle stand, the needle body is worn
The tail end in thorn portion is provided with second needle stand.
In another preference, second needle stand is provided with linkage section, and the linkage section is provided with screw thread, described the
One needle stand is provided with the screwed hole matched with the screw thread, for second needle stand and the first needle stand spiral to be connected
Connect.
In another preference, second needle stand is provided with linkage section, and first needle stand is provided with through hole, the company
Section is connect to be slidably socketed in the through hole, for second needle stand to be slidably socketed with first needle stand.
In another preference, the afterbody of the needle body is provided with pressure sensor, is being punctured through for determining the needle body
The Resistance Value being subject in journey.
In another preference, the tip in the needle body puncture portion is diamond structure, pyramidal structure or inclined opening structure.
In the utility model, described spinal needle is additionally provided with sensor.For example, pressure sensor or bending sensor.
For example, the pressure sensor may be disposed at the afterbody of the needle body supporting part.Or, the pressure sensor may be disposed at institute
State inside the first needle stand and/or the second needle stand.
In another preference, the pressure sensor is also connected with outside processor.
In another preference, the pressure sensor is connected to the processing unit by wirelessly or non-wirelessly mode.
In another preference, processing unit includes display module and analysis module；Wherein, the display module is used to show
Show the Resistance Value that needle body is subject to instantly；The analysis module is used to analyze Resistance Value and the needle body deformation that the needle body is subject to
Between functional relation.
In another preference, the Resistance Value and functional relation can be also uploaded to clothes by the processing unit by network
Business device.
In another preference, setup module is included in the pressure sensor, for setting pressure threshold.
In another preference, alarm module and/or light-emitting diode (LED) module are integrated with the pressure sensor.
Spinal needle anesthesia
The utility model additionally provides a kind of spinal needle anesthesia.
Typically, the method comprising the steps of：
(a) spinal needle described in the utility model is provided；
(b) the needle body puncture portion and needle body supporting part are together carried out successively puncturing until entering cavum subarachnoidale；
(c) after puncturing successfully, needle core base described in pumpback out of described needle body puncture portion so that extract the nook closing member out (this
The delivery hole is caused to be circulated with the needle body puncture portion internal liquid)；
(d) anaesthetic is realized into anesthesia by being injected into cavum subarachnoidale inside the needle body puncture portion with delivery hole.
In another preference, a kind of spinal needle anesthesia includes step：
(a) spinal needle described in the utility model is provided；
(b) the needle body puncture portion is placed in the needle body supporting part；
(c) the needle body supporting part is punctured to interspinal ligaments；
(d) the needle body supporting part is stretched out into needle body puncture portion adjustment and then penetrated to cavum subarachnoidale；
(e) needle core base described in pumpback is so that the nook closing member be extracted out out of described needle body puncture portion；
(f) anaesthetic is realized into anesthesia by being injected into cavum subarachnoidale inside the needle body puncture portion with delivery hole.
Typically, when using spinal needle described in the utility model first aspect, by the way that cross-sectional area is small and length
It is short penetrate needle body and puncture enter in physiological structure, it is big and the support needle body of bend resistance ability by force is to preceding by cross-sectional area
The needle body that penetrates stated plays strength support effect, realized after foregoing nook closing member is pulled out foregoing delivery hole and first needle stand it
Between liquid communication.
When using the spinal needle described in the utility model second aspect, first by supporting needle body to puncture the physiology entered
In structure, the internal pipeline for penetrating needle body by supporting needle body is then recycled, to penetrating needle body force, by penetrating needle body point
Puncture effect is implemented in end to physiological structure, is pierced into so that needle body tip will be penetrated in deeper physiological structure, foregoing pulling out
The liquid communication between foregoing delivery hole and second needle stand is realized after nook closing member.
Major advantage of the present utility model includes：
(a) the lumbar anesthesia needle device is designed provided with support needle body, and the support needle body using bodkin, support needle body connection
There is corresponding needle stand, enhance the toughness of needle body, prevent from bending when running into muscle, ligament or bone in independent puncture process
Fracture, it is ensured that puncture process it is smooth.
(b) the support needle body front end, which is provided with, penetrates needle body, and the needle body that penetrates is designed using fine needle, can be reduced and be worn
To the damage of tissue during thorn, the leakage of cerebrospinal fluid is largely reduced, it is to avoid some unnecessary complication.
(c) the lumbar anesthesia needle device is provided with limiting plate, and the limiting plate can play the depth of needle of limitation support needle body,
So as to be effectively reduced the accuracy of damage and enhancing anesthesia work to tissue.
Tested based on simulated operation and partial clinical, generation spinal needle is not only reduced using the utility model spinal needle
The incidence (decline >=50%) of bending, and significantly reduce complication caused by the leakage because of cerebrospinal fluid (decline >=
60%).
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation scope of the present utility model.The experimental method of unreceipted actual conditions in the following example, leads to
Often according to normal condition, or according to the condition proposed by manufacturer.Unless otherwise indicated, otherwise percentage and number are weight
Percentage and parts by weight.
Embodiment 1
Fig. 1 is the dimensional structure diagram of low damage lumbar anesthesia needle device in the present embodiment, and Fig. 2 is abscissusing corresponding to Fig. 1
Face structural representation, Fig. 3 is the mplifying structure schematic diagram corresponding to a-quadrant in Fig. 2.
With reference to shown in Fig. 1, Fig. 2 and Fig. 3, a kind of low damage lumbar anesthesia needle device, the spinal needle dress are present embodiments provided
Put including：The support needle body 2 of inner hollow, and needle body 1, nook closing member 5 and needle core base 6 are penetrated, set in the front end for penetrating needle body
There is delivery hole 7.
The present embodiment also includes the first needle stand 4, described support needle body 2 be fixed on described in the first needle stand 4, described the
One needle stand 4 is also fixed to be connected to a limiting plate 3, and the support needle body 2 passes through the limiting plate 3.
Entered by the puncture of needle body 1 that penetrates that cross-sectional area is small and length is short in physiological structure, pass through cross section face
Product is big and the support needle body 2 of bend resistance ability by force plays strength support effect to the foregoing needle body 1 that penetrates, and is pulling out foregoing nook closing member
The liquid communication between foregoing delivery hole 7 and first needle stand 4 is realized after 5
It is described to penetrate the front end that needle body 1 is fixedly connected on the support needle body 2 so that whole needle body in the present embodiment
Caliber is the caliber for penetrating needle body 1, when in use, penetrates needle body 1 and together wears out skin, fascia superficialis, depth successively with support needle body 2
Manadesma, supraspinal ligament, interspinal ligaments, ligamentum flavum, endorchis, are then directly entered cavum subarachnoidale, then pull out nook closing member 5 and realize
Liquid communication between the needle stand 4 of delivery hole 7 and first.
In addition, the present embodiment is also illustrated to the size and material of the part element of lumbar anesthesia needle device,
It is described as follows：
The needle body 1 that penetrates is designed using fine needle；
The external diameter numerical value for penetrating needle body 1 is 0.50mm (0.40-0.60mm)；
The length for penetrating needle body 1 is 10mm (5mm-30mm)；
The support needle body 2 is designed using bodkin；
The external diameter numerical value of the support needle body 2 is 0.9mm (0.80-1.0mm)；
The length of the support needle body 2 is 100mm (50mm-150mm)；
The length of first needle stand 4 is 35mm (30mm-55mm).
Embodiment 2
Fig. 4 is the dimensional structure diagram of low damage lumbar anesthesia needle device in the present embodiment, and Fig. 5 is abscissusing corresponding to Fig. 4
Face structural representation, Fig. 6 is the mplifying structure schematic diagram corresponding to B regions in Fig. 5, and Fig. 7 is corresponding to supporting needle body in Fig. 5
Structural representation, Fig. 8 be corresponding to the structural representation that needle body is penetrated in Fig. 5.
With reference to shown in Fig. 4, Fig. 5 and Fig. 6, a kind of low damage lumbar anesthesia needle device, the spinal needle dress are present embodiments provided
Put including：The support needle body 2 of inner hollow, penetrate needle body 1, nook closing member 5, needle core base 6, the first needle stand 4 and the second needle stand 8.
In the present embodiment, the needle core base 6 is located at the rear of the first needle stand 4, and the needle core base 6 and first pin
Second needle stand 8 is provided between seat 4.
The inside of support needle body 2 penetrates needle body 1 provided with described, and the inside of needle body 1 that penetrates is provided with the nook closing member 5.
The first end of the nook closing member 5 is connected to the needle core base 6, and the second end on-fixed of the nook closing member 5 is arranged at described
Penetrate inside needle body 1.
The first end for penetrating needle body 1 is connected to second needle stand 8, and second end for penetrating needle body 1 is piercing in
The support needle body 2.
The first end of the support needle body 2 is connected to first needle stand 4, and the second end of the support needle body 2 is protruded out
Second end for penetrating needle body 1.
A diameter of S3 of the nook closing member 5, a diameter of S2 for penetrating needle body 1, a diameter of S1 of the support needle body 2,
And the S3 is less than the S2, the S2 is less than the S1.
First needle stand 4, which is fixed, is connected to a limiting plate 3, and the support needle body 2 passes through the limiting plate 3.
The profile of the limiting plate 3 is rectangle (can also be circular or cross).
Fig. 4 is the dimensional structure diagram of low damage lumbar anesthesia needle device in the present embodiment, as shown in figure 4, second pin
Seat 8 is provided with linkage section 9, and the linkage section 9 is provided with screw thread, and first needle stand 4 is provided with to match with the screw thread
Screwed hole, for second needle stand 8 to be connected with the spiral of the first needle stand 4.
In practical operation, there are two kinds of modes of operation, first way is to penetrate needle body 1 and nook closing member 5 is hidden in advance
Ensconce in support needle body 2, first punctured by support needle body 2 to interspinal ligaments, needle body 1 then will be penetrated again and adjusts stretching support
Needle body 2 and then penetrate to cavum subarachnoidale.
The second way is, with reference to shown in Fig. 7 and Fig. 8, and penetrating needle body 1 is independently separated with support needle body 2, is being used
When, first support needle body 2 is punctured to interspinal ligaments, then will penetrate again needle tubing track of the needle body 1 along support needle body 2 penetrate to
Cavum subarachnoidale, wherein, Fig. 7 is that, corresponding to the structural representation that needle body 2 is supported in Fig. 5, Fig. 8 is corresponding to penetrating pin in Fig. 5
The structural representation of body 1.
Embodiment 3
Using low damage spinal needle as Figure 1-3, the spinal needle includes：Needle body puncture portion 1, the needle body is punctured
The front end in portion 1 is provided with delivery hole 7；Nook closing member 5, the nook closing member 5 is arranged on inside the needle body puncture portion 1；Needle core base 6, it is described
Needle core base 6 is connected to the nook closing member 5, and the delivery hole 7 and institute are realized after the nook closing member 5 is pulled out by the needle core base 6
State the internal liquid circulation of needle body puncture portion 1；And needle body supporting part 2, the needle body supporting part 2 is arranged on the needle body puncture portion
The rear portion of 1 front end, the intensity for increasing the needle body puncture portion 1.
In the present embodiment, the needle body puncture portion 1 is fixedly connected on the front end of the needle body supporting part 2 so that whole pin
The caliber of body is the caliber in needle body puncture portion 1.
When in use, needle body puncture portion 1 and needle body supporting part 2 together wear out successively skin, fascia superficialis, deep fascia, on spine
Ligament, interspinal ligaments, ligamentum flavum, endorchis, are then directly entered cavum subarachnoidale, then pull out nook closing member 5 realize delivery hole 7 with
Liquid communication inside needle body puncture portion 1.
Embodiment 4
Using the low damage spinal needle as shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, the spinal needle includes：Needle body is punctured
Portion 1, the front end in the needle body puncture portion 1 is provided with delivery hole 7；Nook closing member 5, the nook closing member 5 is arranged in the needle body puncture portion 1
Portion；Needle core base 6, the needle core base 6 is connected to the nook closing member 5, is realized after the nook closing member 5 is pulled out by the needle core base 6
The delivery hole 7 circulates with the internal liquid of needle body puncture portion 1；And needle body supporting part 2, the needle body supporting part 2 sets
Rear portion in the front end of needle body puncture portion 1, the intensity for increasing the needle body puncture portion 1.
In the present embodiment, needle body puncture portion 1 and nook closing member 5 have been hidden in needle body supporting part 2 in advance, are first supported by needle body
Portion 2 is punctured to interspinal ligaments, and needle body puncture portion 1 then is adjusted into stretching needle body supporting part 2 again and then penetrated to arachnoid
Cavity of resorption, then pulls out nook closing member 5 and realizes delivery hole 7 and the liquid communication inside needle body puncture portion 1.
All documents referred in the utility model are all incorporated as reference in this application, just as each document quilt
It is individually recited as with reference to such.In addition, it is to be understood that after above-mentioned instruction content of the present utility model has been read, this area skill
Art personnel can make various changes or modifications to the utility model, and these equivalent form of values equally fall within the application appended claims
Book limited range.
Claims (10)
1. a kind of spinal needle, it is characterised in that the spinal needle includes：The support needle body of inner hollow, and penetrate needle body, pin
Core and needle core base；
Wherein, the front end for penetrating needle body is provided with delivery hole；
It is described to penetrate the front end that needle body is fixedly installed on the support needle body,
The nook closing member on-fixed is arranged at the support needle body and positioned at the inside that needle body is penetrated described in front end；
Wherein, the cross-sectional area S1 and the cross-sectional area S2 for penetrating needle body of described support needle body meet following formula：S1
＞ S2；
The length L1 and the length L2 for penetrating needle body of the support needle body meet following formula：L1 is more than or equal to L2；
Also, the bend resistance ability Z1 and the bend resistance ability Z2 for penetrating needle body of the support needle body meet following formula：Z1 ＞
Z2。
2. spinal needle according to claim 1, it is characterised in that described support needle body and penetrate both needle bodies front end it
Outer region is cylindrical structure.
3. spinal needle according to claim 1, it is characterised in that the L1 is 40mm-200mm；And/or
The L2 is 3-50mm.
4. spinal needle according to claim 1, it is characterised in that the tip for penetrating needle body is pyramidal structure or angle
Structure.
5. a kind of low damage spinal needle, it is characterised in that the spinal needle includes：The support needle body of inner hollow, and penetrate
Needle body, nook closing member and needle core base；
Wherein, the front end for penetrating needle body is provided with delivery hole；
The needle body on-fixed that penetrates is arranged inside the support needle body；
The needle body inside on-fixed that penetrates is provided with the nook closing member；
The support needle body tail end is provided with the first needle stand for fixing the support needle body；
The needle body tail end that penetrates is provided with the second needle stand for penetrating needle body described in fixed；
Wherein, the cross-sectional area S1 of the described support needle body and cross-sectional area S2 for penetrating needle body meets following formula：S1 ＞ S2；
The length L1a and the length L2a for penetrating needle body of the support needle body meet following formula：L1a ＜ L2a；
Also, the bend resistance ability Z1 and the bend resistance ability Z2 for penetrating needle body of the support needle body meet following formula：Z1 ＞ Z2.
6. spinal needle according to claim 5, it is characterised in that second needle stand is provided with linkage section, and the company
Section is connect provided with screw thread.
7. spinal needle according to claim 5, it is characterised in that second needle stand is provided with linkage section, described first
Needle stand is provided with through hole；
Also, the linkage section is slidably socketed in the through hole, for second needle stand and first needle stand to be slided
Socket.
8. spinal needle according to claim 5, it is characterised in that first needle stand also fixation is connected to a limiting plate, and
The support needle body passes through the limiting plate.
9. spinal needle according to claim 5, it is characterised in that described L1a is 20-150mm；And/or
Described L2a is 25-200mm.
10. a kind of portion containing puncture and the spinal needle of supporting part, it is characterised in that the spinal needle includes：Needle body, needle stand and optionally
Nook closing member；
Wherein, the needle body is sequentially provided with needle body puncture portion and needle body supporting part, and institute under puncture state from distal end to near-end
The front end for stating needle body puncture portion is provided with delivery hole；
The nook closing member is movably nested in inside the needle body；With
The needle stand is fixedly connected on the near-end of the needle body；
Wherein, the cross-sectional area S1 of described needle body supporting part and the cross-sectional area S2 in needle body puncture portion meet following formula：S1
＞ S2；
Also, the bend resistance ability Z1 of the needle body supporting part and the bend resistance ability Z2 in the needle body puncture portion meet following formula：
Z1 ＞ Z2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621023222.6U CN206587015U (en) | 2016-08-31 | 2016-08-31 | Spinal needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621023222.6U CN206587015U (en) | 2016-08-31 | 2016-08-31 | Spinal needle |
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| Publication Number | Publication Date |
|---|---|
| CN206587015U true CN206587015U (en) | 2017-10-27 |
Family
ID=60129885
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621023222.6U Active CN206587015U (en) | 2016-08-31 | 2016-08-31 | Spinal needle |
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| Country | Link |
|---|---|
| CN (1) | CN206587015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107773292A (en) * | 2016-08-31 | 2018-03-09 | 邹最 | A kind of low damage spinal needle |
-
2016
- 2016-08-31 CN CN201621023222.6U patent/CN206587015U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107773292A (en) * | 2016-08-31 | 2018-03-09 | 邹最 | A kind of low damage spinal needle |
| CN107773292B (en) * | 2016-08-31 | 2024-07-02 | 上海长征医院 | Low-damage lumbar anesthesia needle |
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