CN105664302B - Syringe positioning device - Google Patents
Syringe positioning device Download PDFInfo
- Publication number
- CN105664302B CN105664302B CN201410677560.0A CN201410677560A CN105664302B CN 105664302 B CN105664302 B CN 105664302B CN 201410677560 A CN201410677560 A CN 201410677560A CN 105664302 B CN105664302 B CN 105664302B
- Authority
- CN
- China
- Prior art keywords
- fastener
- opening
- positioning device
- communicating pipe
- syringe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention discloses a kind of positioning device, is suitable for syringe.Positioning device includes: communicating pipe, film, the first fastener and the second fastener.Communicating pipe includes the first opening, the second opening and third opening, the first opening connecting needle, third opening connection syringe；Film is located at the second opening；First fastener is sheathed on the outside of communicating pipe；Second fastener is connected to film.When the pressure decline in communicating pipe makes film be recessed, the second fastener is separated or is engaged with the first fastener.
Description
Technical field
The present invention relates to a kind of positioning device more particularly to a kind of syringe positioning devices incuded with pressure type.
Background technique
The movement usually punctured in traditional medicine, such as: spinal epidural cavity injection, urgent autogenous cutting, ductus thoracicus are drawn
Stream, percutaneous Wei Zao Fistula etc. are often accompanied by high risk, it is therefore desirable to careful positioning if these movements punctured are over or under.
Below by taking spinal epidural cavity is injected as an example, illustrate the bottleneck of existing location technology.
Spinal epidural cavity injection is common anaesthesia technology, is widely used in local anaesthesia and chronic lower back pain
In control, method is will be among narcotic analgesic infusion of medicine spinal epidural cavity.However, since spinal epidural cavity is located at outside vertebra
Side, thickness only about 3mm, if syringe needle excessively can deeply stab nerve, therefore, the problem of being most commonly encountered at present, is that syringe needle positioning is tired
Difficulty and derivative medical-risk.
Confirm that the method for syringe needle positioning is known as LOR (Loss of resistance) in traditional medicine, utilizes lower resistance needle
Pressure gap between cylinder sensing spinal epidural cavity and muscle layer, uses the position for learning syringe needle.In other words, due to hard ridge
Film exocoel is the cavity form of relatively low pressure relative to muscle, so after syringe needle is pierced into spinal epidural cavity by muscle layer,
Pressure will be greatly reduced, therefore the pressure experience of hand can be fed back to from syringe, learn whether syringe needle comes into endorchis
Exocoel.But since each one experiences different, the error that such mode generates is very big.
To avoid above-mentioned error, there is the invention such as 7175608 B2 of United States Patent (USP) US to be devised, using by pressure
Variation reaches visualization with mechanism design, and the purpose of this device is the protrusion by pressure change above-mentioned (LOR) by film
Or it is recessed reach visualization, that is, the state of protrusion is presented when syringe needle is pierced into muscle layer, after syringe needle reaches spinal epidural cavity
Then degree of convexity will weaken, thus can by pressure change (LOR) by film protrusion or it is flat reach visualization, doctor is provided
The position of shield personnel's visual determination syringe needle.However, visualization of this design only for LOR, if having carelessness in medical staff's judgement,
Still fault can be generated, can not directly reach prevents from piercing through effect.
Above-mentioned United States Patent (USP) is injected only for spinal epidural cavity, can not be applied to more puncture fields, be drawn with ductus thoracicus
For flowing art, when the target position of puncture is sternal rib membrane cavity, when the pressure of sternal rib membrane cavity compared with muscle layer is high, only with film protrusion
Or the method for flat judgement needle position loses effectiveness.
Therefore, when how syringe needle to be made to enter human body, it can smoothly position, syringe needle is avoided excessively to advance, and then reach and prevent from piercing
The protection worn reduces the risk and injury of puncture behavior, the target that actually those skilled in the art actively make great efforts.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of positioning devices that can solve the above problem.The present invention mentions
The positioning device of confession, is suitable for syringe, the syringe needle of one end connection syringe of positioning device, and the other end connects the needle of syringe
Cylinder.The present apparatus is not necessarily limited to spinal epidural cavity injection art and uses, and is suitable for when syringe needle enters target area by muscle layer,
The Needle localization behavior that pressure gap can be generated in the present apparatus, below by taking spinal epidural cavity is injected as an example, when syringe needle enters
Spinal epidural cavity and when leading to the pressure reduction in syringe, positioning device can prevent syringe needle from moving on, and then reach and prevent from piercing
The protecting effect worn.
Positioning device provided in an embodiment of the present invention includes: communicating pipe, film, the first fastener and the second fastener.Even
Siphunculus includes the first opening, the second opening and third opening, the first opening connecting needle, third opening connection syringe.Film position
In the second opening.First fastener is sheathed on the outside of communicating pipe.Second fastener is connected to film.Wherein when in communicating pipe
When pressure declines and film is made to be recessed, the other end of the second fastener is separated with the first fastener.In the present embodiment, by
Two fasteners are separated with the first fastener, therefore even if continuing to press on the first fastener, and communicating pipe and the second fastener remain former
Position, and make syringe needle can not again forward impelling and avoid piercing through.
Positioning device provided in an embodiment of the present invention, wherein the first opening and third opening are located at the both ends of communicating pipe, and
And it corresponds to each other.And the second opening is located between the first opening and third opening.
Positioning device provided in an embodiment of the present invention, wherein communicating pipe includes by-pass portion, and the second opening is located at by-pass portion.It is convex
By-pass portion out provides film and the second fastener accommodating space appropriate, and makes the first fastener and the second fastener
Position can correspond to each other and be convenient for engagement.
Positioning device provided in an embodiment of the present invention, wherein the first fastener includes pushing part and joint portion, joint portion is hung down
Direct-connected to be connected to pushing part, pushing part includes sets of holes, is arranged in sets of holes communicating pipe.Using most simplified structure, reaches first and connect
Component can be relatively moved with communicating pipe.
Positioning device provided in an embodiment of the present invention, wherein the joint portion includes fixation hole, corresponds to second fastener.
It is larger that it is connected to overpressure when initial position, therefore film compression protrusion, pushes the second fastener to pass through fixation hole, reach first
The state that fastener is engaged with the second fastener, so that communicating pipe, the first fastener and the second fastener reach and be fixed to one another
Effect, therefore syringe needle can be driven to advance simultaneously when promotion.
Positioning device provided in an embodiment of the present invention, wherein the communicating pipe includes attachment recess, corresponds to the second fastener.
Second fastener is placed in attachment recess after passing through fixation hole, can reinforce fixed effect.
Another embodiment of the present invention provides positioning device include: communicating pipe, film, the first fastener and second engagement
Part.Communicating pipe includes that the first opening, the second opening and third are open, the first opening connecting needle, third opening connection syringe, the
Two openings are located between the first opening and third opening.Film is located at the second opening.First fastener is sheathed on the outer of communicating pipe
Side.When the pressure decline in communicating pipe makes film be recessed, the other end of the second fastener is engaged in the first fastener.At this
In embodiment, engaged by by the second fastener with the first fastener, therefore the first fastener can not be continued to press on, and syringe needle is also
Can not again forward impelling and avoid piercing through.
Positioning device provided in an embodiment of the present invention, has further included outer sleeve, and the first fastener is axially movably arranged at housing
On cylinder.It first fastener and is movably set on outer sleeve respectively communicating pipe, uses the positioning for reaching mutual, and may be easy to
It pushes and uses.
Positioning device provided in an embodiment of the present invention, wherein the communicating pipe further includes syringe holding part, is connected to third and opens
Mouthful.The positioning device of the present embodiment can use together with general known syringe, syringe holding part to accommodate syringe, and
Syringe can be assisted to be kept in the correct position in use, and the air-tightness in syringe and communicating pipe can be assisted,
Avoid thrashing.
Positioning device provided in an embodiment of the present invention, wherein communicating pipe includes an at least sliding part, outside communicating pipe
Surface.It uses and communicating pipe and the element adjacent with communicating pipe can be used in outer sleeve inner shaft to movement and reach syringe needle
The effect of propulsion.
Positioning device provided in an embodiment of the present invention, wherein the first fastener be in sleeve shaped, be axially sheathed on communicating pipe and
On the outside of second fastener, and the first fastener is provided with concaveconvex structure in the inner face for corresponding to the second fastener.And first connects
The concaveconvex structure of component inner face setting can make the second fastener reach optimal splicing results.Axially extending concaveconvex structure can
There is provided at any time the second fastener with engaging, reach fixed effect.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
The three-dimensional view of Fig. 1 first embodiment of the invention；
The first visual angle of first embodiment of the invention communicating pipe Fig. 2 figure；
The second visual angle of first embodiment of the invention communicating pipe Fig. 3 figure；
Fig. 4 first embodiment of the invention the first use state location drawing；
Fig. 5 first embodiment of the invention the first completion status location drawing；
Fig. 6 first embodiment of the invention film assembly the first use state schematic internal view；
Fig. 7 first embodiment of the invention film assembly the first completion status schematic internal view；
The three-dimensional view of Fig. 8 second embodiment of the invention；
The cross-sectional view of Fig. 9 second embodiment of the invention；
Figure 10 A second embodiment of the invention film assembly the second use state cross-sectional view；
Figure 10 B second embodiment of the invention film assembly the second completion status cross-sectional view；
Figure 11 A third embodiment of the invention engagement state schematic diagram；
Figure 11 B third embodiment of the invention separate state diagram；
Figure 12 A fourth embodiment of the invention engagement state schematic diagram；
Figure 12 B fourth embodiment of the invention separate state diagram；
Figure 13 A fifth embodiment of the invention separate state diagram；
Figure 13 B fifth embodiment of the invention engagement state schematic diagram；
The three-dimensional view of Figure 14 sixth embodiment of the invention；
Figure 15 sixth embodiment of the invention communicating pipe perspective view；
Figure 16 sixth embodiment of the invention outer sleeve and the first fastener location drawing；
Figure 17 A sixth embodiment of the invention film assembly the first use state cross-sectional view；And
Figure 17 B sixth embodiment of the invention film assembly the first completion status cross-sectional view.
Wherein, appended drawing reference
1 syringe
10 syringe needles
12 syringes
121 syringe push rods
2 positioning devices
20 communicating pipes
201 first openings
202 second openings
203 thirds opening
204 attachment recess
205 positioning convex portions
206 wide pipe portions
207 sliding parts
208 gears
209 struts
24 first fasteners
240 pushing parts
242 joint portions
241 sets of holes
244 fixation holes
246 concaveconvex structures
26 second fasteners
261 first ends
262 second ends
22 film assemblies
220 films
27 outer sleeves
210 syringe holding parts
20a by-pass portion
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
Positioning device 2 of the invention substantially all includes communicating pipe 20, film 220, the first fastener 24 and second connects
Component 26.When film 220 be pressurized protrusion or decompression recess when, by the first fastener 24 and the second fastener 26 engagement or divide
From to achieve the effect that syringe needle is prevented to move on.Wherein, film pressurization protrusion when in puncture movement progress, drives first
Fastener 24 is engaged with the second fastener 26 in the first use state, when syringe needle completes puncture and film decompression is recessed, is driven
First fastener 24 is separated with the second fastener 26 in the first completion status.Or, when syringe needle punctured in and film pressurization it is convex
When rising, the first fastener 24 is driven to be separated with the second fastener 26 in the second use state, film subtracts when syringe needle completion puncture
When indentation is fallen into, the first fastener 24 is driven to be engaged with the second fastener 26 in the second completion status.Two kinds of above-mentioned states all may be used
To reach when syringe needle arrives at spinal epidural cavity, prevents syringe needle from moving on, avoid the effect pierced through.Below with various embodiments
It is illustrated.
The three-dimensional view of Fig. 1 first embodiment of the invention is please referred to, positioning device 2 provided by first embodiment is suitable for
Syringe 1, existing syringe 1 divide for syringe needle 10 and syringe 12.When beginning to use, one end connecting needle 10 of positioning device 2,
The other end connects syringe 12.Wherein, the signified syringe 1 of the present invention refers to a kind of dress that pressure can be generated by change volume
It sets, is not limited with its title.
Positioning device 2 in first embodiment includes: communicating pipe 20, film assembly 22, the first fastener 24 and second connect
Component 26.
Please refer to the first visual angle of first embodiment of the invention communicating pipe Fig. 2 figure.Communicating pipe 20 includes the first opening 201, the
Two openings 202 and third opening 203, the first opening 201 is to connecting needle 10, and third opening 203 is to connect syringe 12, and the
Two openings 202 are located between the first opening 201 and third opening 202.
Please refer to the second visual angle of first embodiment of the invention communicating pipe Fig. 3 figure.The first opening 201 and the in communicating pipe 20
Three openings 203 are located at the both ends of communicating pipe 20, and correspond to each other.In order to connect various sizes of syringe needle 10 or syringe 12, the
One opening 201 and third opening 203 can have different sizes according to be applicable in syringe 1, and third opening 203 can
To be connected to grug transportation tube or other medical equipments on demand, it is not limited with syringe.
Communicating pipe 20 in embodiment includes by-pass portion 20a, so that whole communicating pipe 20 is slightly T-shaped.Second opening 201
Positioned at the top of by-pass portion 20a.Communicating pipe 20 further includes attachment recess 204, and position and size correspond to the second fastener 26.
Please refer to Fig. 4 first embodiment of the invention the first use state location drawing.First fastener 24 includes pushing part 240
And joint portion 242, joint portion 242 are vertically connected at pushing part 240.Pushing part 240 is in the plate of ellipse, and center has one
Sets of holes 241, communicating pipe 20 are arranged in sets of holes 241, and have positioning convex portion 205 on communicating pipe 20, connect to limit first
Component 24 is only in the front end of communicating pipe 20 (close to the first opening 201) activity.In other words, the portion profile of pipe 20 meets repeatedly
In the shape of sets of holes 241, rest part tool is not met, and interacts range to limit the first fastener 24 and communicating pipe 20.It connects
Include fixation hole 244 in conjunction portion 242, corresponds to the second fastener 26.First fastener 24 employed in first embodiment
Overall dimensions are minimum, can save material and space.
It please also refer to Fig. 5 first embodiment of the invention the first completion status location drawing.In the first embodiment, film is set
It is placed in 22 inside (shown in dotted line) of film assembly, and 220 (not shown) of film drives the second fastener 26 to move up and down.
Please refer to Fig. 6 first embodiment of the invention film assembly the first use state schematic internal view.When syringe needle is only pierced into
When to muscle layer, communicating pipe 20 is in the state of relatively high pressure, and film 220 is caused to be pressurized protrusion, and drives the second fastener 26
It pushes, the second fastener 26 is made to pass through fixation hole 244 and be placed in attachment recess 204.It please also refer to Fig. 4, pass through first
Fastener 24 is engaged in the second fastener 26, combines closely with the first fastener 24 communicating pipe 20, when user pushes pushing part
When 240, syringe needle 10 is driven to puncture forward together.
Please refer to Fig. 7 first embodiment of the invention film assembly the first completion status schematic internal view.Due to epidural
Chamber is the cavity form of relatively low pressure relative to muscle, so after syringe needle 10 is pierced into spinal epidural cavity by muscle layer, even
The internal pressure of siphunculus 20 will be greatly reduced, and film 220 is recessed to 20 direction of communicating pipe, and the second fastener 26 is driven to inside contract,
And as shown in figure 5, separating the first fastener 24 with communicating pipe 20.In other words, when syringe needle arrives at low pressure cavity, even if
It is further continued for pushing the first fastener 24, syringe needle will not be made to be further continued for advancing, it can be to avoid the danger excessively pierced through.And it loosens
Feel also allow user to find to have arrived at epidural immediately.
The three-dimensional view of Fig. 8 second embodiment of the invention.The first fastener 24 (dotted line) is in sleeve in a second embodiment
Shape is axially sheathed on the outside of communicating pipe 20 and the second fastener 26.Film 220 is directly arranged at the second opening of communicating pipe 20
202.The first opening 201 of communicating pipe 20 is pierced by the front end of the first fastener 24.
Please refer to Fig. 9.Communicating pipe 20 in second embodiment includes wide pipe portion 206, to replace syringe, directly with pushing away
Cylinder push rod 121 is promoted from third opening 203.Wide 206 outer surface of pipe portion is provided with sliding part 207 and gear 208, is made with reaching
The function of the 24 axially opposite movement of energy of communicating pipe 20 and the first fastener.
Please refer to the cross-sectional view of Fig. 9 second embodiment of the invention.First fastener 24 is corresponding to the second fastener 26
Inner face is provided with concaveconvex structure 246.The moving direction of concaveconvex structure 246 along communicating pipe 20 are arranged.Gear 208 also corresponds to recessed
The position of male structure 246 can be rolled along concaveconvex structure 246.
Please refer to Figure 10 A second embodiment of the invention film assembly the first use state cross-sectional view.In second embodiment
Second fastener 26 is in the shape of a rod, and the strut 209 being connected on communicating pipe 20, allows the second fastener 26 as seesaw
As actuation.When syringe needle is only pierced into muscle layer, communicating pipe 20 is in the state of relatively high pressure, causes film 220 by belling
It rises, the first end 261 of the second fastener 26 is propped up, and the second end 262 of the second fastener is then fallen.Therefore, the first engagement
Part 24 is separated with communicating pipe 20, and presentation can mutually axially movable first use state.
Please refer to Figure 10 B second embodiment of the invention film assembly the first completion status cross-sectional view.When syringe needle 10 is by muscle
Layer is pierced into after spinal epidural cavity, and the internal pressure of communicating pipe 20 will be greatly reduced, and film 220 is recessed to 20 direction of communicating pipe
It falls into, the first end 261 of the second fastener 26 is driven to push, and the rising of second end 262 engages with concaveconvex structure 246.By by
Two fasteners 26 are engaged with the first fastener 24, therefore can not continue to push forward, and syringe needle also can not again forward impelling and keep away
Exempt to pierce through.
Between concaveconvex structure 246, the second fastener 26 and film 220 can using it is many it is different by the way of come reach engagement
With isolated purpose, illustrated below with third~five embodiments:
Please refer to Figure 11 A third embodiment of the invention engagement state schematic diagram.The second fastener 26 is in the present embodiment
Rod-short, it is relatively simple in structure.Film 220 be pressurized protrusion when drive the second fastener 26 to block upwards with concaveconvex structure 246
It closes.Figure 11 B third embodiment of the invention separate state diagram.The decompression recess of film 220, the second fastener 26 and concaveconvex structure
246 separation.
Figure 12 A fourth embodiment of the invention engagement state schematic diagram.The second fastener 26 is concavo-convex in the present embodiment,
Can and concaveconvex structure 246 reach closer combination effect.Film 220 be pressurized protrusion when drive the second fastener 26 upwards,
Engage with concaveconvex structure 246.Figure 12 B fourth embodiment of the invention separate state diagram.The decompression recess of film 220, second connects
Component 26 is separated with concaveconvex structure 246.
Figure 13 A fifth embodiment of the invention separate state diagram.The second fastener 26 is U-shaped in the present embodiment
Type can have two to engage place with concaveconvex structure 246, can also reach and closely combine effect.Figure 13 B present invention the 5th is implemented
Example engagement state schematic diagram.Film 220 be pressurized protrusion when drive the second fastener 26 to separate upwards with concaveconvex structure 246.Figure
13B fourth embodiment of the invention engagement state schematic diagram.The decompression recess of film 220, the second fastener 26 is downwards and concaveconvex structure
246 engagings.
Please refer to the three-dimensional view of Figure 14 sixth embodiment of the invention.It is (empty that outer sleeve 27 has been further included in the present embodiment
Line), the first fastener 24 is axial to be movably arranged on outer sleeve 27.It is located in communicating pipe 20 in first fastener 24 and outer sleeve 27
Portion, the first opening 201 can be pierced by from 27 front end of outer sleeve.
Please refer to Figure 15 sixth embodiment of the invention communicating pipe perspective view.Communicating pipe 20 in the present embodiment includes
One the 201, second opening 202 of opening and third opening 203.The third opening 203 of communicating pipe 20 is connected with syringe holding part 210,
Two side of left and right of communicating pipe 20 respectively has a sliding part 207, in the groove being accommodated on outer sleeve 27 or opening, with reach can
The purpose of axial movement.
Please refer to Figure 16 sixth embodiment of the invention outer sleeve and the first fastener location drawing.First fastener 24 utilizes card
The mode of conjunction is set on outer sleeve 27 (dotted line), and wherein pushing part 240 is located at the outside of outer sleeve 27, and concaveconvex structure 246
In the inside of outer sleeve 27.Groove is provided on outer sleeve 27, and the part-structure of the first fastener 24 is placed in wherein, and
It can move in the trench, to achieve the purpose that the first fastener 24 and communicating pipe 20 mutually axially move.
Please refer to Figure 17 A sixth embodiment of the invention film assembly the first use state cross-sectional view.In the sixth embodiment
It is provided with film assembly 22, is connected to communicating pipe 20.Film 220 and the second fastener 26 are set to inside film assembly 22.When
Puncture movement carry out in when film 220 pressurize protrusion, drive the second fastener 26 to ramp up, be engaged in concaveconvex structure 246.At this
The second fastener 26 is a quarter butt in embodiment, and concaveconvex structure 246 is the aperture of an entire row, and quarter butt passes through aperture and reaches and connect
It closes, forms the first use state.In other words, under the first use state, when pushing pushing part 240, communicating pipe 20 be will drive
Syringe needle (not shown) promotes simultaneously.
Please refer to Figure 17 B sixth embodiment of the invention film assembly the first completion status cross-sectional view.When syringe needle (not shown)
Completion punctures and film 220 depressurizes when being recessed, and the second fastener 26 is driven to separate with concaveconvex structure 246 in the first completion status.
Even if continuing to press on pushing part 240 at this time, syringe needle will not readvance, and can pierce through to avoid excessive, smoothly make syringe needle indwelling in
In spinal epidural cavity.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (15)
1. a kind of positioning device is suitable for a syringe, which connects a syringe needle of the syringe, and the other end connects
Connect a syringe of the syringe, which is characterized in that the positioning device includes:
A connecting pipe, including one first opening, one second opening and third opening, first opening connect the syringe needle, this
Three openings connect the syringe；
One film is located at second opening；
One first fastener, is sheathed on the outside of the communicating pipe；And
One second fastener, is connected to the film, and when the pressure decline in the communicating pipe makes the film be recessed, this second is connect
The other end of component is separated with first fastener.
2. positioning device according to claim 1, which is characterized in that first opening and third opening are located at the connection
The both ends of pipe, and correspond to each other.
3. positioning device according to claim 2, which is characterized in that second opening is located at first opening and the third
Between opening.
4. positioning device according to claim 1, which is characterized in that the communicating pipe includes a by-pass portion, second opening
Positioned at the by-pass portion.
5. positioning device according to claim 1, which is characterized in that first fastener includes a pushing part and an engagement
Portion, the joint portion are vertically connected at the pushing part, which includes a sets of holes, are arranged in the sets of holes communicating pipe.
6. positioning device according to claim 5, which is characterized in that the joint portion includes a fixation hole, correspond to this
Two fasteners.
7. positioning device according to claim 5, which is characterized in that the communicating pipe includes an attachment recess, and corresponding to should
Second fastener.
8. a kind of positioning device is suitable for a syringe, which connects a syringe needle of the syringe, and the other end connects
Connect a syringe of the syringe, which is characterized in that the positioning device includes:
A connecting pipe, including one first opening, one second opening and third opening, first opening connect the syringe needle, this
Three openings connect the syringe；
One film is located at second opening；
One first fastener, is sheathed on the outside of the communicating pipe；And
One second fastener, is connected to the film, and when the pressure decline in the communicating pipe makes the film be recessed, this second is connect
The other end of component is engaged in first fastener.
9. positioning device according to claim 8, which is characterized in that first opening and third opening are located at the connection
The both ends of pipe, and correspond to each other.
10. positioning device according to claim 9, which is characterized in that second opening be located at first opening with this
Between three openings.
11. positioning device according to claim 1 or 8, which is characterized in that further include an outer sleeve, first fastener
Axially it is movably arranged at the outer sleeve.
12. positioning device according to claim 1 or 8, which is characterized in that further include a syringe holding part communicating pipe,
It is connected to third opening.
13. positioning device according to claim 1 or 8, which is characterized in that further include an at least sliding part communicating pipe,
Positioned at the outer surface of the communicating pipe.
14. positioning device according to claim 1 or 8, which is characterized in that first fastener is cylindrical in shape, is axially arranged
On the outside of the communicating pipe and second fastener.
15. positioning device according to claim 14, which is characterized in that first fastener is in corresponding to second engagement
One inner face of part is provided with a concaveconvex structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677560.0A CN105664302B (en) | 2014-11-21 | 2014-11-21 | Syringe positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677560.0A CN105664302B (en) | 2014-11-21 | 2014-11-21 | Syringe positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105664302A CN105664302A (en) | 2016-06-15 |
| CN105664302B true CN105664302B (en) | 2019-02-15 |
Family
ID=56957748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410677560.0A Active CN105664302B (en) | 2014-11-21 | 2014-11-21 | Syringe positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105664302B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619386A (en) * | 2011-03-09 | 2014-03-05 | 诺丁汉特伦特大学 | Fluid vessel communication device |
| CN203598018U (en) * | 2013-11-15 | 2014-05-21 | 潘乐屹 | Device used for safety testing of epidural anesthesia puncture |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2423016C (en) * | 2003-03-20 | 2012-06-19 | North West London Hospitals Nhs Trust | A device for the identification of the epidural space |
| EP2223662A1 (en) * | 2007-11-20 | 2010-09-01 | Innovamédica S.A.P.I. DE C.V. | Electronic syringe with safety system for spinal injections |
| JP5653350B2 (en) * | 2008-06-19 | 2015-01-14 | ベティ，ラヴィンダー | Device that detects epidural space while preventing dural puncture by resistance difference technique |
-
2014
- 2014-11-21 CN CN201410677560.0A patent/CN105664302B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619386A (en) * | 2011-03-09 | 2014-03-05 | 诺丁汉特伦特大学 | Fluid vessel communication device |
| CN203598018U (en) * | 2013-11-15 | 2014-05-21 | 潘乐屹 | Device used for safety testing of epidural anesthesia puncture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105664302A (en) | 2016-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210275221A1 (en) | Subcutaneous delivery tool | |
| EP2895231B1 (en) | Integrated catheter securement and luer access device | |
| EP3251109B1 (en) | Injection simulation device and method | |
| JP3204337U (en) | Indwelling needle with prevention of puncture | |
| DE69919898T2 (en) | PARENTERAL DEVICE | |
| EP1616594B1 (en) | Punctionsystem with a flexible permanent tube to link to a medical distribution tube | |
| EP3703782B1 (en) | Resettable prefilled syringe training device with releaseably locking needle guard | |
| DE112012001952T5 (en) | A one-way remote-controlled cannula for endoscopy | |
| TW201618824A (en) | A positioning device for needle syringe | |
| EP2995334A1 (en) | Fluid injection needle unit having stick injury and infection prevention function | |
| DE202013012340U1 (en) | Tools for transcutaneous implantation and systems | |
| CN104220118A (en) | Needle assembly removal device and disposal device | |
| CN105664302B (en) | Syringe positioning device | |
| WO2018228633A1 (en) | Medical puncture instrument | |
| EP3111981B1 (en) | Safe catheter | |
| DE112013007370T5 (en) | Device for piercing a heparin closure and vascular access system | |
| CA2633773C (en) | Portal access device with removable sharps protection | |
| US9579453B1 (en) | Two-step auto-injection device | |
| CN203943968U (en) | Venous transfusion entry needle | |
| CN204219521U (en) | Scalp acupuncture | |
| DE112009001751B4 (en) | Device for injecting a liquid into a body, in particular the body of a patient | |
| DE1248235B (en) | Device for intravenous injection or infusion of fluids | |
| SG159416A1 (en) | All-in-one safety syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181109 Address after: 1, 9th floor, 27 Chang'an East Road, Zhongshan District, Taipei City, Taiwan, China Applicant after: Medical Union Technology Co., Ltd. Address before: 4th Floor, 69 Lane 32, 285 Lane, Neihu Road Section, Taipei City, Taiwan, China Applicant before: Luo Wenfu |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |