CN207785253U - Lumbar anesthesia puncture needle - Google Patents

Abstract

The utility model discloses a kind of lumbar anesthesia puncture needles, including needle stand, the first tactile markings and needle tubing, needle stand has proximally and distally, proximal end is formed with to receive the chamber of cerebrospinal fluid, chamber is pellucidity, distal end has to connect the port of medical fluid injection device, port and chamber；First tactile markings are formed on needle stand；One end of needle tubing is connected to the proximal end of needle stand and is communicated with chamber, and the other end of needle tubing is formed as angular cut, and angular cut is oriented along direction identical with the first tactile markings.The lumbar anesthesia puncture needle provided according to the utility model embodiment, when needle tubing is worn to cavum subarachnoidale or epidural space, cerebrospinal fluid is from needle tubing towards chamber, and it is stored in the chamber, this a small amount of cerebrospinal fluid will not both have an adverse effect to the medicine-feeding rate of anesthetic, will not be impacted to patient.Meanwhile chamber is transparent, is convenient to whether observation chamber interior has the presence of cerebrospinal fluid, conveniently judges whether to puncture successfully, it is easy to use.

Description

Lumbar anesthesia puncture needle

Technical field

The utility model is related to medical supplies more particularly to a kind of lumbar anesthesia puncture needles.

Background technology

Intravertebral anesthesia is that anaesthetic is injected to the cavum subarachnoidale or epidural space of canalis spinalis, and spinal nerve root is blocked The corresponding region that the nerve root dominates is set to generate a kind of anesthesia means of anesthetic effect.

Intravertebral anesthesia, general to choose patient's lateral position or seat (saddle block), back is vertical with bed surface, neat with edge of bed It is flat, waist is bent backward as possible, so that interspinal interstice is opened and is conducive to puncture.It is general to select between L3-4 or L2-3 by taking lumbar anesthesia as an example Gap.It positions first, then successively infiltration anesthesia, reduction puncture pain to skin subcutaneous tissue interspinal ligaments.According to the state of an illness and anesthesia Doctor is accustomed to selecting directly entering or side enters to puncture, and it is cerebrospinal fluid outflow to puncture Success Flag, and rear cavum subarachnoidale is interior to inject arcotic. That is, in the related technology, it is to have cerebrospinal fluid to be flowed out from the distal end of puncture needle to puncture successful mark, however, if it happens The excessive loss of cerebrospinal fluid, then patient will appear headache etc. discomforts.In addition, in puncture procedure, it is difficult to judge the needle of puncture needle Therefore sharp direction is unfavorable for puncture procedure.

Utility model content

The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality It is to propose a kind of lumbar anesthesia puncture needle with novel purpose.

To achieve the above object, according to the lumbar anesthesia puncture needle of the utility model embodiment, including：

Needle stand, the needle stand have proximally and distally, and the proximal end is formed with to receive the chamber of cerebrospinal fluid, the chamber Room is pellucidity, and to observe the presence or absence of cerebrospinal fluid in the chamber, the distal end has to connect medical fluid The port of injection device, the port and the chamber；

First tactile markings, first tactile markings are formed on the needle stand；

One end of needle tubing, the needle tubing is connected to the proximal end of the needle stand and is communicated with the chamber, the needle tubing it is another One end is formed as angular cut, and the angular cut is oriented along direction identical with first tactile markings.

According to the lumbar anesthesia puncture needle that the utility model embodiment provides, when needle tubing is worn to cavum subarachnoidale or Epidural cavity When chamber, cerebrospinal fluid is stored in from needle tubing towards chamber in the chamber, and this small amount of cerebrospinal fluid both will not be to anesthetic Medicine-feeding rate has an adverse effect, and will not be impacted to patient.Meanwhile chamber is transparent, is convenient in observation chamber Whether portion has the presence of cerebrospinal fluid, and then conveniently judges whether to puncture successfully, very easy to use.In addition, angular cut along Direction orientation identical with the first tactile markings, in this way, the angular cut direction of doctor's accurate judgement needle tubing is convenient to, in order to more Add and smoothly punctures.

In addition, can also have following additional technology according to the lumbar anesthesia puncture needle of the utility model above-described embodiment Feature：

One embodiment according to the present utility model, the chamber include：

Center cavity, the center cavity are passed through by the central axis of the needle tubing, and are connected to described one end of the needle tubing；

Eccentric chamber, the bias chamber are located at around the center cavity and are penetrated through with the center cavity.

One embodiment according to the present utility model, the proximal end form one and are affectedly bashful portion, and the portion of being affectedly bashful uses transparent material Matter, the chamber are formed in described be affectedly bashful in portion.

One embodiment according to the present utility model, the portion of being affectedly bashful support the lumbar anesthesia puncture needle including one Bottom surface on planar object, and with the left side and the right side for being affectedly bashful the lumbar anesthesia puncture needle for user's finger grip Side.

One embodiment according to the present utility model, the peripheral surface of the needle stand is radially projecting to be formed with annular rim, institute State annular rim be located at it is described proximally and distally between, first tactile markings are formed on the annular rim.

One embodiment according to the present utility model, first tactile markings are to be formed on the annular rim and along vertical To the first slot of extension.

One embodiment according to the present utility model, described be affectedly bashful in portion are formed with the second tactile markings, and described second touches Feel that label orients in the same direction with the angular cut.

One embodiment according to the present utility model, the portion of being affectedly bashful further include top surface, and second tactile markings are edge The second slot laterally extended in the upper surface.

One embodiment according to the present utility model further includes：

One end of needle core, the needle core can penetrate the needle tubing from the port；

Protective cap, the protective cap are connected to the other end of the needle core, and can block the covering port.

One embodiment according to the present utility model, the protective cap upper edge protrusion one are suitable for being clamped with first slot Positioning region.

The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description In become apparent, or recognized by the practice of the utility model.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the structural schematic diagram of the utility model embodiment one embodiment lumbar anesthesia puncture needle；

Fig. 2 is the sectional view of the utility model embodiment one embodiment lumbar anesthesia puncture needle；

Fig. 3 is the structural schematic diagram of another embodiment vertebra anaesthetic puncture needle of the utility model embodiment waist；

Fig. 4 is the exploded view of another embodiment vertebra anaesthetic puncture needle of the utility model embodiment waist.

Reference numeral：

Needle stand 10；

Proximal end 101；

Distally 102；

Port 11；

It is affectedly bashful portion 12；

Bottom surface 121；

Left side 122；

Right side 123；

Top surface 124；

Second tactile markings 1241；

Chamber P10；

Center cavity P101；

Eccentric chamber P102；

Annular rim 13；

First tactile markings 131；

Needle tubing 20；

Angular cut 201；

Needle core 30；

Protective cap 31；

Positioning region 311.

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation, be based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts The every other embodiment obtained, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise " " axial direction ", " circumferential direction ", " radial direction " is orientation based on ... shown in the drawings Or position relationship, be merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated device or Element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the utility model System.

In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be Concrete meaning in the present invention.

In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features are in direct contact, and can also not be to be in direct contact but lead to including the first and second features Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the One feature is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special Sign second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only Indicate that fisrt feature level height is less than second feature.

The lumbar anesthesia puncture needle of the utility model embodiment is described in detail with reference to the accompanying drawings.

Shown in Fig. 2, according to the utility model embodiment provide lumbar anesthesia puncture needle, including needle stand 10, First tactile markings 131 and needle tubing 20.

Specifically, needle stand 10 has proximal end 101 and distal end 102, the proximal end 101 is formed with to receive the chamber of cerebrospinal fluid Room P10, the chamber P10 are pellucidity, to observe the presence or absence of cerebrospinal fluid in the chamber P10, the distal end 102 With to connect the port 11 of medical fluid injection device, the port 11 is connected to the chamber P10.Wherein, proximal end 101 Refer to close to one end of patient, distal end 102 refers to one end far from patient, be that is to say close to one end of doctor.

First tactile markings 131 are formed on the needle stand 10.

One end of needle tubing 20 is connected to the proximal end 101 of the needle stand 10 and is communicated with the chamber P10, the needle tubing 20 The other end is formed as angular cut 201, and the angular cut 201 is oriented along direction identical with first tactile markings 131.

In other words, which is mainly made of needle stand 10, the first tactile markings 131 and needle tubing 20, wherein Chamber P10 is formed in needle stand 10, one end of needle tubing 20 is connected to the proximal end 101 of needle stand 10 and is communicated with the chamber P10, should Chamber P10 is for collecting Cerebrospinal Fluid in Patients in piercing process.Moreover, chamber P10 is transparent, such as the needle stand 10 The part at least corresponding to chamber P10 is made of transparent material, in this way, in piercing process, when needle tubing 20 punctures After in place, doctor observes cerebrospinal fluid whether is had collected inside it through the transparent chamber P10, and then whether judges puncture Success；Specifically, if it is observed that have collected cerebrospinal fluid in chamber P10, then judge to puncture successfully, if, in chamber P10 There is no cerebrospinal fluid, then may determine that puncture position inaccuracy.And the port 11 of the distal end 102 of the needle stand 10, it can connect medical Fluid injector (such as syringe etc.), when judge to puncture successfully and then utilization syringe by the needle tubing 20 to human body Interior injecting narcotic.

And the distal end 102 of needle stand 10 is provided with the first tactile markings 131, that is to say, that first tactile markings 131 can It is touched convenient for the finger of doctor, and identical direction is in since the angular cut of needle tubing 20 201 and first touches label, so, Doctor can perceive the direction for the angular cut 201 for penetrating the needle tubing in human body 20 by touching the first touch label.

According to the lumbar anesthesia puncture needle that the utility model embodiment provides, when needle tubing 20 is worn to cavum subarachnoidale or dura mater When exocoel, cerebrospinal fluid is flowed from needle tubing 20 towards chamber P10, and is stored in chamber P10, and this small amount of cerebrospinal fluid both will not Have an adverse effect to the medicine-feeding rate of anesthetic, patient will not be impacted.Meanwhile chamber P10 is transparent, convenience Whether there is the presence of cerebrospinal fluid inside observation chamber P10, and then conveniently judges whether to puncture successfully, it is very easy to use. In addition, angular cut 201 is oriented along direction identical with the first tactile markings 131, in this way, being convenient to doctor's accurate judgement needle tubing 20 201 direction of angular cut, in order to more smoothly puncture.

In one embodiment of the utility model, chamber P10 includes center cavity P101 and eccentric chamber P102, wherein in Chambers of the heart P101 is passed through by the central axis of the needle tubing 20, and is connected to described one end of the needle tubing 20；Eccentric chamber P102 It is penetrated through around the center cavity P101 and with the center cavity P101.

As a result, when puncturing, cerebrospinal fluid is flowed by needle tubing 20 to chamber P10, is initially entered to center cavity P101, then It flows into eccentric chamber P102, and is stored in eccentric chamber P102 under the action of gravity, and fiber crops are being injected subsequently through syringe At liquor-saturated dose, anesthetic is directly entered via center cavity P101 to needle tubing 20, then is injected into human body by needle tubing 20, in this way, can The injection of anesthetic is caused to hinder to avoid the cerebrospinal fluid in needle stand 10 so that anesthetic is smoothly injected into human body, knot Structure is simple, and performance is reliable.

In some embodiments of the utility model, proximal end 101 forms one and is affectedly bashful portion 12, and the portion 12 of being affectedly bashful is using transparent Material, the chamber P10 are formed in described be affectedly bashful in portion 12.In this way, doctor is using the lumbar anesthesia puncture needle, finger is utilized It is affectedly bashful this and is affectedly bashful portion 12, and then be convenient for puncture procedure.

More specifically, in an example of the utility model, it includes one wearing the lumbar anesthesia to be affectedly bashful portion 12 Pricker is supported on the bottom surface 121 on planar object, and is affectedly bashful the lumbar anesthesia puncture needle with for user's finger grip Left side 122 and right side 123.Advantageous, the bottom surface 121, left side 122 and right side 123 are plane.

As a result, when placing the lumbar anesthesia puncture needle, which contacts with planar object so that the lumbar anesthesia Puncture needle will not roll, and then ensure that lumbar anesthesia puncture needle can stablize is placed on planar object.And using the waist When vertebra anaesthetic puncture needle, doctor can utilize middle finger and thumb to contact left side 122 and right side 123 respectively, in this way, can be square Just be affectedly bashful the lumbar anesthesia puncture needle, in order to puncture procedure.

In one embodiment of the utility model, the peripheral surface of needle stand 10 is radially projecting to be formed with annular rim 13, institute It states annular rim 13 to be located between the proximal end 101 and distal end 102, first tactile markings 131 are formed in the annular rim 13 On.In this way, when referring to during doctor utilizes and thumb contacts the left side 122 and right side 123 in portion of being affectedly bashful 12 respectively, it can just Using the first tactile markings 131 on forefinger contact annular rim 13, and then perceive the direction of the angular cut 201 of needle tubing 20.

Advantageous, the first tactile markings 131 are the first slot for being formed on the annular rim 13 and extending longitudinally, namely It is that the first tactile markings 131 are formed as the slot structure extended longitudinally, this more convenient Yu doctor of slot structure touches perception, Using effect is more preferable.

In one embodiment of the utility model, it is affectedly bashful in portion 12 and is formed with the second tactile markings 1241, described second Tactile markings 1241 orient in the same direction with the angular cut 201.That is, the second tactile markings 1241 and needle tubing 20 201 direction of angular cut it is identical, moreover, second tactile markings 1241 be located at be affectedly bashful in portion 12, in this way, being convenient to doctor Second tactile markings 1241 are touched by index finger, and convenient for observation, therefore, second tactile markings 1241 can be utilized to feel Know the direction for judging angular cut 201.

Advantageous, it further includes top surface 124 to be affectedly bashful portion 12, and second tactile markings 1241 are transversely in the upper surface The second slot extended, that is to say, which is formed as the slot structure extended transversely, and this slot structure is more It is convenient to doctor and touches perception, using effect is more preferable.

Further include needle core 30 and protective cap 31 in another embodiment of the utility model with reference to shown in Fig. 3 to Fig. 4, Wherein, one end of needle core 30 can penetrate the needle tubing 20 from the port 11；Protective cap 31 is connected to the another of the needle core 30 One end, and can block and cover the port 11.In this way, the lumbar anesthesia puncture needle when not in use, can by needle core 30 are inserted into needle tubing 20, and foreign matter is avoided to enter needle tubing 20, meanwhile, port 11 is protected by protective cap 31, avoids port 11 dirty Dye or damage.Meanwhile when being punctured using the lumbar anesthesia puncture needle, first the needle core 30 is penetrated to needle tubing 20, then When being punctured, at this point, needle tubing 20 formation be filled to be it is solid, can be to avoid in piercing process, tissue enters to needle tubing In 20, needle tubing 20 is led to problems such as to block.

Positioning region 311 advantageous, that 31 upper edge of protective cap protrusion one is suitable for being clamped with first slot, in this way, utilizing The positioning region 311 is clamped with the first slot on the needle stand 10, and protective cap 31 can be made to fix.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into Row combines and combination.

The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention, Under every utility model in the utility model is conceived, equivalent structure made based on the specification and figures of the utility model Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (10)

1. a kind of lumbar anesthesia puncture needle, which is characterized in that including：

Needle stand, the needle stand have proximally and distally, and the proximal end is formed with to receive the chamber of cerebrospinal fluid, and the chamber is Pellucidity, to observe the presence or absence of cerebrospinal fluid in the chamber, the distal end has to connect medical fluid injection The port of device, the port and the chamber；

First tactile markings, first tactile markings are formed on the needle stand；

One end of needle tubing, the needle tubing is connected to the proximal end of the needle stand and is communicated with the chamber, the other end of the needle tubing Be formed as angular cut, the angular cut is oriented along direction identical with first tactile markings.

2. lumbar anesthesia puncture needle according to claim 1, which is characterized in that the chamber includes：

Center cavity, the center cavity are passed through by the central axis of the needle tubing, and are connected to described one end of the needle tubing；

Eccentric chamber, the bias chamber are located at around the center cavity and are penetrated through with the center cavity.

3. lumbar anesthesia puncture needle according to claim 1, which is characterized in that the proximal end forms one and is affectedly bashful portion, described Being affectedly bashful portion uses transparent material, the chamber to be formed in described be affectedly bashful in portion.

4. lumbar anesthesia puncture needle according to claim 3, which is characterized in that the portion of being affectedly bashful includes one to by the waist Vertebra anaesthetic puncture needle is supported on the bottom surface on planar object, and is punctured with the lumbar anesthesia is affectedly bashful for user's finger grip The left side and right side of needle.

5. lumbar anesthesia puncture needle according to claim 1, which is characterized in that the peripheral surface of the needle stand is radially projecting Be formed with annular rim, the annular rim be located at it is described proximally and distally between, first tactile markings are formed in the annular On edge.

6. lumbar anesthesia puncture needle according to claim 5, which is characterized in that first tactile markings is are formed in The first slot stated on annular rim and extended longitudinally.

7. lumbar anesthesia puncture needle according to claim 3, which is characterized in that described be affectedly bashful in portion is formed with the second tactile Label, second tactile markings orient in the same direction with the angular cut.

8. lumbar anesthesia puncture needle according to claim 7, which is characterized in that the portion of being affectedly bashful further includes top surface, described Second tactile markings are the second slot transversely extended in the upper surface.

9. lumbar anesthesia puncture needle according to any one of claim 1 to 7, which is characterized in that further include：

One end of needle core, the needle core can penetrate the needle tubing from the port；

Protective cap, the protective cap are connected to the other end of the needle core, and can block the covering port.

10. lumbar anesthesia puncture needle according to claim 9, which is characterized in that the protective cap upper edge protrusion one is suitable In the positioning region being clamped with first slot.