CN208404770U - Disposable puncture device - Google Patents
Disposable puncture device Download PDFInfo
- Publication number
- CN208404770U CN208404770U CN201720892405.XU CN201720892405U CN208404770U CN 208404770 U CN208404770 U CN 208404770U CN 201720892405 U CN201720892405 U CN 201720892405U CN 208404770 U CN208404770 U CN 208404770U
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- outer tube
- puncture
- paracentesis
- tube
- needle holder
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Abstract
The utility model discloses a kind of disposable puncture devices, including the puncture needle component for puncture and for the Paracentesis needle holder of hand-held force, puncture needle component includes being set in outer tube for the outer tube and resilient sleeve of puncture for stretching out outer tube by elasticity to block the inner tube of the needle tip of outer tube with needle tip, and outer tube and inner tube are used with the hollow tube axially through channel；Paracentesis needle holder is set to the tail end of outer tube, Paracentesis needle holder have along axially through communicating passage, Paracentesis needle holder is connected to by communicating passage with outer tube.Structure is simple, easy to use, punctures accurate.It is exposed after preventing needle tip before puncture and puncturing, avoid needle tip from damaging periphery；By the way that carbon dioxide gas conveying device to be directly fitted on Paracentesis needle holder directly supply airflow channel, the play during gas supply is avoided, loosening for connecting portion is effectively prevent, guarantees to stablize gas supply.
Description
Technical field
The utility model relates to the field of medical instrument technology, particularly, are related to a kind of disposable puncture device.
Background technique
Compared with traditional surgery, micro-wound surgical operation is with wound is small, blood loss is few, surgical pain is light, recovery is fast, lives
Outstanding advantages of institute's day short, postoperative no scar or scar is small, is rapidly developed and is popularized at home nearly ten years, at present China
Most hospitals above county level can carry out this operation.
Laparoscopically surgical operation is that micro-wound surgical operation carries out one kind earliest, that popularity highest, application range are most wide
Micro-wound surgical operation, present laparoscopic surgery are widely used to gallbladder removal, operation on liver, operation on spleen, gastrointestinal procedures, woman
Section, Urology Surgery, cardiothoracic surgery etc..
Laparoscopically surgical operation is to carry out operation behaviour under the monitor screen of doctor's direct-view outside in closed abdominopelvic cavity
Make, it needs certain equipment that CO2 gas is filled with abdominal cavity to form operative space.
It connects intraperitoneal outer when puncture outfit is laparoscopic surgery and can be abdomen to the pipeline of intraperitoneal supplement CO2 gas
One of important instrument of endoscope-assistant surgery.
Existing puncture outfit, structure is complicated, be easy to cause continued damage after piercing；CO2 gas is connected using hose, is held
Hose frequent swing is be easy to cause due to air pressure easily in gas replenishment process and is loosened.
Utility model content
The utility model provides a kind of disposable puncture device, and to solve existing puncture outfit, structure is complicated, after piercing
It is easy to cause continued damage；CO2 gas is connected using hose, is easy to be easy to cause hose due to air pressure in gas replenishment process
Frequent swing and the technical issues of loosen.
The utility model provides a kind of disposable puncture device, applies including the puncture needle component for puncture and for hand-held
The Paracentesis needle holder of power, puncture needle component include being set in outer tube to be used for for the outer tube and resilient sleeve of puncture with needle tip
Outer tube is stretched out by elasticity to block the inner tube of the needle tip of outer tube, and outer tube and inner tube, which use, to be had axially through in channel
Blank pipe；Paracentesis needle holder is set to the tail end of outer tube, Paracentesis needle holder have along axially through communicating passage, Paracentesis needle holder passes through connection
Channel is connected to outer tube.
Further, the needle tip of outer tube front end is set as puncturing angle, and the front end of inner tube is set as arc end；Inner tube
By for forcing inner tube to connect to the overhanging elastic component out of outer tube by elasticity between outer tube.
Further, the maximum fit clearance between inner tube and outer tube is not more than 0.3mm.
Further, the inner end of inner tube is equipped with the anti-falling piece for preventing inner tube from deviating from from outer tube.
Further, Paracentesis needle holder includes that the side that the puncture direction of puncture needle component is controlled for clamping is connect with outer tube
It is used to hold axially to apply the gripping member of axial force along puncture needle component to control piece and set on direction control unit rear；Side
Circumferential direction to control piece along disposable puncture device is laid, and gripping member is laid in right-angled intersection；Direction control unit and gripping member are axial
Perforation constitutes communicating passage.
Further, direction control unit includes being connect with outer tube for limiting paracentesis depth and clamping the limit of front end limit
Position portion and for providing clamping feel and anti-skidding bump.
Further, gripping member includes that the extension to be formed, vertical with extension is extended axially rearward along direction control unit
Intersection is for the gripping pipe of gripping and in the collet for holding tube end.
Further, the hollow tube that pipe is used to form exhaust passage is held, pipe is held and is connected to extension, hold pipe
Exhaust outlet closed by collet activity.
Further, the connection that the arrival end of communicating passage is equipped with for connecting with carbon dioxide gas conveying device connects
Mouthful.
Further, the surface of puncture needle component and/or the surface of Paracentesis needle holder are configured with glossy surface, can polishing portion
The surface roughness Ra maximum value of position is not more than 0.4 μm, polish less than position no more than 6.3 μm；Or puncture needle component
Surface and/or the surface of Paracentesis needle holder are arranged to no glossy surface, and the surface roughness Ra maximum value that can polish position is not more than
0.8 μm, polish less than position no more than 6.3 μm.
The utility model has the following beneficial effects:
The utility model disposable puncture device, is punctured using puncture needle component, realizes puncture needle using Paracentesis needle holder
The puncture direction controlling and puncture force of component, structure is simple, easy to use, punctures accurate.Puncture needle component uses outer tube
With the composite structure of inner tube, middle external tube carries out brokenly body puncture with needle tip, and inner tube passes through elastic force wearing from outer tube
Pricker tip position is protruding to block needle tip completely, exposed after preventing needle tip before puncture and puncturing；It wears
The needle tip of outer tube is hidden since the elasticity of inner tube is overhanging before piercing, and needle tip is avoided to damage periphery；When wearing
When thorn, the barrier effect due to puncturing target overcomes elastic force, moves so that inner tube is shunk towards outer tube bore, to expose outer
The needle tip of pipe is in favor of puncturing, and after puncturing broken body, barrier effect power disappears, and elastic force promotes inner tube to pop up outward to hide
Needle tip is kept off, operating process injury caused by puncturing inner cavity after puncturing is avoided.Puncture needle component has with Paracentesis needle holder
Axially through airflow channel, can be by the way that carbon dioxide gas conveying device be directly fitted to lead to air-flow on Paracentesis needle holder
Road is directly supplied, and carbon dioxide gas causes to impact along axial input to reduce butt joint and airflow channel inner wall, is avoided
Play during gas supply effectively prevent loosening for connecting portion, guarantees to stablize gas supply.
Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model
Point.Below with reference to figure, the utility model is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is the structural schematic diagram of the disposable puncture device of the preferred embodiment in the utility model；
Fig. 2 is the structural schematic diagram of the puncture needle component of the preferred embodiment in the utility model.
Marginal data:
1, puncture needle component；101, outer tube；1011, needle tip；102, inner tube；1021, arc end；103, elastic component；
104, anti-falling piece；2, Paracentesis needle holder；201, direction control unit；2011, limiting section；2012, bump；202, gripping member；2021,
Extension；2022, pipe is held；2023, collet；3, connecting interface.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by following
The multitude of different ways for limiting and covering is implemented.
Fig. 1 is the structural schematic diagram of the disposable puncture device of the preferred embodiment in the utility model；Fig. 2 is that the utility model is excellent
Select the structural schematic diagram of the puncture needle component of embodiment.
As shown in Figure 1, the disposable puncture device of the present embodiment, including the puncture needle component 1 for puncture and is used for hand
The Paracentesis needle holder 2 of force is held, puncture needle component 1 includes the outer tube 101 and resilient sleeve with needle tip 1011 for puncture
For stretching out outer tube 101 by elasticity to block the inner tube 102 of the needle tip 1011 of outer tube 101, outer tube in outer tube 101
101 and inner tube 102 using have axially through channel hollow tube；Paracentesis needle holder 2 is set to the tail end of outer tube 101, Paracentesis needle holder 2
With along axially through communicating passage, Paracentesis needle holder 2 is connected to by communicating passage with outer tube 101.Optionally, the outer diameter of outer tube
Having a size of 2mm~3mm.The utility model disposable puncture device is punctured using puncture needle component 1, real using Paracentesis needle holder 2
The puncture direction controlling and puncture force of existing puncture needle component 1, structure is simple, easy to use, punctures accurate.Puncture needle component
1 uses the composite structure of outer tube 101 and inner tube 102, and middle external tube 101 carries out brokenly body puncture with needle tip 1011, interior
Pipe 102 is protruding to block needle tip 1011 completely by 1011 position of needle tip of elastic force from outer tube 101, prevents
Needle tip 1011 is exposed before puncture and after puncturing；The needle tip 1011 of outer tube 101 is due to inner tube 102 before puncturing
Elasticity is overhanging and is hidden, and needle tip 1011 is avoided to damage periphery；When puncturing, the blocking due to puncturing target is made
With elastic force is overcome, moved so that inner tube 102 is shunk towards 101 inner cavity of outer tube, to expose the needle tip 1011 of outer tube 101
In favor of puncturing, after puncturing broken body, barrier effect power disappears, and elastic force promotes the outside pop-up of inner tube 102 to block puncture needle
Point 1011 avoids operating process injury caused by puncturing inner cavity after puncturing.Puncture needle component 1 and Paracentesis needle holder 2 have axis
It, can be by the way that carbon dioxide gas conveying device be directly fitted to lead to air-flow on Paracentesis needle holder 2 to the airflow channel of perforation
Road is directly supplied, and carbon dioxide gas causes to impact along axial input to reduce butt joint and airflow channel inner wall, is avoided
Play during gas supply effectively prevent loosening for connecting portion, guarantees to stablize gas supply.Optionally, inner tube 102 and Warning Mark
Disjunctor setting, Warning Mark is from the side of Paracentesis needle holder 2 to exposing, to show the flexible situation of inner tube 102.Optionally, puncture needle
The fluting of seat 2 laterally offered for showing Warning Mark.
As depicted in figs. 1 and 2, in the present embodiment, the needle tip 1011 of 101 front end of outer tube is set as puncturing angle.It wears
Then force localization can gradually be broken site of puncture in any by thorn angle, conveniently find site of puncture accurately and facilitate force
It punctures.The front end of inner tube 102 is set as arc end 1021.It can guarantee the front end safety before puncturing and after puncturing, reduce even
It avoids accidentally injuring.By for forcing inner tube 102 to be stretched out to outside outer tube 101 by elasticity between inner tube 102 and outer tube 101
Elastic component 103 connects.1011 position of needle tip for forcing inner tube 102 towards outer tube 101 by elastic component 103 is overhanging, to keep away
Exempt from needle tip 1011 to cause to accidentally injure, only can overcome the elastic force of elastic component 103 so as to wear when encountering and puncturing and hinder
Pricker point 1011 is exposed.
As shown in Fig. 2, the maximum fit clearance between inner tube 102 and outer tube 101 is not more than 0.3mm in the present embodiment.It is anti-
The card that only fouling product enters generation in gap stops phenomenon, avoids the problem that inner tube 102 can not timely elastic recovery after puncturing.
As shown in Fig. 2, the inner end of inner tube 102 is equipped with for preventing inner tube 102 from deviating from from outer tube 101 in the present embodiment
Anti-falling piece 104.Inner tube 102 is avoided to deviate from outer tube 101 due to instantaneous force.
As shown in Figure 1, Paracentesis needle holder 2 includes being connect with outer tube 101 for clamping to control puncture needle group in the present embodiment
Part 1 puncture direction direction control unit 201 and be set to 201 rear of direction control unit for hold along puncture needle component 1
The axial gripping member 202 for applying axial force.Direction control unit 201 is laid along the circumferential direction of disposable puncture device.Gripping member 202 is in ten
Word, which intersects, to be laid.Direction control unit 201 and gripping member 202 are axially through composition communicating passage.Facilitate gripping and force, reduces behaviour
Unstable phenomenon during work improves the accuracy of control.Facilitate the processing and manufacturing of structure.
As shown in Figure 1, in the present embodiment, direction control unit 201 include connect with outer tube 101 for limit paracentesis depth with
And it clamps the limiting section 2011 of front end limit and clamps feel and anti-skidding bump 2012 for providing.Facilitate gripping and applies
Power prevents the sliding unstability in operating process, improves the accuracy of control.
As shown in Figure 1, in the present embodiment, gripping member 202 includes that prolonging of being formed is extended axially rearward along direction control unit 201
Stretch pipe 2021, intersecting vertically with extension 2021 holds pipe 2022 and in the collet for holding 2022 end of pipe for gripping
2023.The structure for facilitating gripping is formed, the sliding unstability in operating process is prevented.
As shown in Figure 1, holding the hollow tube that pipe 2022 is used to form exhaust passage in the present embodiment.Hold pipe
2022 are connected to extension 2021.The exhaust outlet for holding pipe 2022 passes through 2023 activity closing of collet.
As shown in Figure 1, the arrival end of communicating passage is equipped with for connecting with carbon dioxide gas conveying device in the present embodiment
The connecting interface 3 connect.With connection convenient for assembly, the leakproofness and stability of connection are improved.
As depicted in figs. 1 and 2, in the present embodiment, the surface of puncture needle component 1 and/or the surface of Paracentesis needle holder 2 are arranged to
Have glossy surface, the surface roughness Ra maximum value at position can be polished no more than 0.4 μm, polish less than position no more than 6.3 μ
m.Optionally, the surface of puncture needle component 1 and/or the surface of Paracentesis needle holder 2 are arranged to no glossy surface, can polish the table at position
Surface roughness Ra maximum value is not more than 0.8 μm, polish less than position no more than 6.3 μm.Sense of touch when operation can either be improved,
Facilitate operation, and can be avoided and site of puncture is damaged.
When implementation, disposable puncture device is provided, grasps the Paracentesis needle holder 2 of puncture outfit, adjusts 1 front end of puncture needle component
It is directed toward position, is punctured vertically downward, the retraction when inner tube 102 meets obstructions, Warning Mark is mobile to rearward end, and puncture outfit penetrates
Inner tube 102 is popped up because suffered resistance disappears when site of puncture, and Warning Mark returns back to original position, can carry out subsequent operation.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of disposable puncture device, including the puncture needle component (1) for puncture and for the Paracentesis needle holder of hand-held force
(2),
It is characterized in that,
The puncture needle component (1) includes that the outer tube (101) and resilient sleeve with needle tip (1011) for puncture are set to
For stretching out the outer tube (101) by elasticity to block the needle tip of the outer tube (101) in the outer tube (101)
(1011) inner tube (102),
The outer tube (101) and said inner tube (102) are using the hollow tube having axially through channel；
The Paracentesis needle holder (2) be set to the outer tube (101) tail end, the Paracentesis needle holder (2) have along axially through company
Circulation passage, the Paracentesis needle holder (2) are connected to by communicating passage with the outer tube (101).
2. disposable puncture device according to claim 1, which is characterized in that
The needle tip (1011) of outer tube (101) front end is set as puncturing angle, and the front end of said inner tube (102) is set
It is set to arc end (1021)；
Between said inner tube (102) and the outer tube (101) by for by elasticity force said inner tube (102) to it is described outside
Elastic component (103) connection that pipe (101) stretches out outside.
3. disposable puncture device according to claim 1, which is characterized in that
Maximum fit clearance between said inner tube (102) and the outer tube (101) is not more than 0.3mm.
4. disposable puncture device according to claim 1, which is characterized in that
The inner end of said inner tube (102) is equipped with the anti-falling piece for preventing said inner tube (102) from deviating from from the outer tube (101)
(104)。
5. disposable puncture device according to any one of claim 1 to 4, which is characterized in that
The Paracentesis needle holder (2) includes being connect with the outer tube (101) for clamping to control wearing for the puncture needle component (1)
It pierces the direction control unit (201) in direction and is set to the direction control unit (201) rear for holding along the puncture needle
Component (1) axially applies the gripping member (202) of axial force；
The direction control unit (201) is laid along the circumferential direction of disposable puncture device, and the gripping member (202) is in right-angled intersection cloth
If；
The direction control unit (201) and the gripping member (202) are axially through composition communicating passage.
6. disposable puncture device according to claim 5, which is characterized in that
The direction control unit (201) includes being connect with the outer tube (101) for limiting paracentesis depth and clamping front end limit
The limiting section (2011) of position and feel and anti-skidding bump (2012) are clamped for providing.
7. disposable puncture device according to claim 5, which is characterized in that
The gripping member (202) include extended axially rearward along the direction control unit (201) extension to be formed (2021), with
The extension (2021) intersects vertically for the gripping pipe (2022) of gripping and manages (2022) end in described hold
Collet (2023).
8. disposable puncture device according to claim 7, which is characterized in that
The hollow tube for holding pipe (2022) and being used to form exhaust passage,
The gripping pipe (2022) is connected to the extension (2021),
The exhaust outlet for holding pipe (2022) passes through the collet (2023) activity closing.
9. disposable puncture device according to any one of claim 1 to 4, which is characterized in that
The arrival end of the communicating passage is equipped with the connecting interface (3) for connecting with carbon dioxide gas conveying device.
10. disposable puncture device according to any one of claim 1 to 4, which is characterized in that
The surface of the puncture needle component (1) and/or the surface of the Paracentesis needle holder (2) are configured with glossy surface, can polish
The surface roughness Ra maximum value at position is not more than 0.4 μm, polish less than position no more than 6.3 μm；Or
The surface of the puncture needle component (1) and/or the surface of the Paracentesis needle holder (2) are arranged to no glossy surface, can polish
The surface roughness Ra maximum value at position is not more than 0.8 μm, polish less than position no more than 6.3 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720892405.XU CN208404770U (en) | 2017-07-21 | 2017-07-21 | Disposable puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720892405.XU CN208404770U (en) | 2017-07-21 | 2017-07-21 | Disposable puncture device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208404770U true CN208404770U (en) | 2019-01-22 |
Family
ID=65126862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720892405.XU Active CN208404770U (en) | 2017-07-21 | 2017-07-21 | Disposable puncture device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208404770U (en) |
-
2017
- 2017-07-21 CN CN201720892405.XU patent/CN208404770U/en active Active
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| GR01 | Patent grant |