CN109675145A - Novel puncture trochar and its application method - Google Patents
Novel puncture trochar and its application method Download PDFInfo
- Publication number
- CN109675145A CN109675145A CN201910066155.8A CN201910066155A CN109675145A CN 109675145 A CN109675145 A CN 109675145A CN 201910066155 A CN201910066155 A CN 201910066155A CN 109675145 A CN109675145 A CN 109675145A
- Authority
- CN
- China
- Prior art keywords
- movable block
- needle
- puncture needle
- support base
- puncture
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1585—Needle inserters
Abstract
The invention belongs to puncture needle technical fields, more particularly to novel puncture trochar and its application method, structure includes casing, the hollow puncture needle that front end protrudes from casing is socketed in described sleeve pipe, described sleeve pipe end is fixedly connected with support base, sliding sleeve is connected to movable block in the support base, infusion channel is provided in the movable block, the hollow puncture needle end is fixedly connected with movable block, the corresponding connection infusion channel of hollow puncture needle, the opposite side that movable block is connect with hollow puncture needle is provided with fluid communication pipe, the corresponding connection infusion channel of the fluid communication pipe, actuating mechanism is additionally provided with above movable block.The present invention provides a kind of structure is simple, can the singlehanded paracentesis trocar for completing operation, and correspondence provides its application method, has been obviously improved the operability of paracentesis trocar in clinical treatment and biomedicine experiment, has Practical significance.
Description
Technical field
The present invention relates to puncture needle technical fields, in particular to novel puncture trochar.
Background technique
During clinical treatment and biomedicine experiment, it is often necessary to use puncture needle and be filled to be infused or be organized
Stream.The puncture needle of three types is often used in vascular puncture, specific as follows:
Simplest method is using traditional scalp acupuncture.Operator using sharp puncture needle-penetration blood vessel and wears sharp
Pricker promotes blood vessel.Once confirming needle in the blood vessels, operator starts to be infused after just fixing needle tubing, and such needle is left in blood vessel
In.But if the spatial position of blood vessel is mobile or scalp acupuncture is mobile, needle point is possible to surprisingly pierce through blood vessel, causes to test
Failure, or injury is generated to patient, it needs to puncture again, also increases workload.Such case is likely to occur in biomedicine
In experiment, such as move the organ for carrying out perfusion；It can also happen that clinically, as patient moves in venous transfusion
Arm or scalp acupuncture.
The needle that another kind is often used is blunt nosed needle.During many biology laboratories, operator is first by one section of suture
It is loosely wrapped in around blood vessel, then cuts an aperture on blood vessel using scissors, subsequent operator will be in blunt nosed pin insertion apertures.
Once confirming syringe needle in the blood vessels, operator fixes blunt nosed needle by tightening suture.Due to the needle used be it is blunt nosed, this
Kind of method can prevent it is unexpected pierce through blood vessel, but the aperture of suitable size is cut on blood vessel, and it is unclear in blood to gush out the visual field
In the case where allow blunt nosed needle pass through blood vessel on aperture difficulty it is very high.
A kind of last common needle is remaining needle, wherein sharp puncture needle is located in remaining needle casing, tip is from casing
Head end extends.When puncturing, operator wears blood vessel using sharp piercing needle terminal spine and puncture needle is pushed forward one along blood vessel
It is intravascular that section distance enters remaining needle casing also.Once confirmation puncture needle and casing have entered blood vessel, operator is with regard on the other hand
Fixed sleeving, the other hand carefully extract puncture needle from casing, and casing is fixed, perfusion tube is connected to and is prolonged by subsequent operator
On long tube.It, can be by the way that double fins be fixed on skin come fixed sleeving in clinical setting.But in biomedicine
When carrying out the puncture cannula of free blood vessel in experiment, fixed soft remaining needle casing dissociate it is intravascular very difficult.This
Although outer puncture needle is removed it is possible to prevente effectively from infusion process medium vessels are surprisingly pierced through, needed simultaneously using two hands
To extract puncture needle, operation difficulty is relatively high for cooperation.
British patent GB2488810 provides a kind of device for puncture cannula, and wherein puncture needle is in response to puncturing
Needle end point detection to Fluid pressure and retract automatically.Chamber and puncture needle fluid connection in device.The chamber includes diaphragm,
And the diaphragm when passing through blood vessel in response to puncture needle the pressure change that occurs and deform, to discharge the spring on connected structure.
After spring release, needle retracts under the bias force of spring.This puncture needle structure is complex, and production difficulty and cost compared with
It is high.In addition, the characteristic based on spring, can be shunk to fast powerful when blood vessel is punctured hour hands, be unable to control retraction time or
Speed, while vibration and noise will be generated, it be easy to cause the uneasiness of patient.There are also the BD of Bi Di company production for similar design
Autoguard BC shielded IV conduit.The product structure allows operator to press activator button, makes syringe needle in spring force
Under the action of retract automatically.Although structure is simpler, there is shaking as British patent GB2488810 about spring in it
And the shortcomings that noise.
On the other hand, although the BD NEXIVA venous detaining needle of Bi Di company production can be using both hands or singlehanded behaviour
Make technology and extract puncture needle, but the hand of operator needs to be moved to another position from its initial penetration position when its one-handed performance
Can just puncture needle be extracted by setting, and the retraction of needle can not be realized in the case where hand does not move, and the retraction efficiency of needle is relatively low.
In summary, it is still desirable to design that a kind of structure is simple, manufacturing cost is low and what singlehanded can be controled and operated wears
Pierce trochar.
Summary of the invention
In order to solve the puncture needle being commonly used during clinical transfusion treatment and Bioexperiment at this stage on the market
It cannot be considered in terms of degree easy to use, operation difficulty, be needled the problem of comfort level and production cost of individual, novel puncture set is provided
Pipe needle and its application method.
Novel puncture trochar, including casing are socketed with the hollow puncture needle that front end protrudes from casing, institute in described sleeve pipe
It states cannula end and is fixedly connected with support base, sliding sleeve is connected to movable block in the support base, is provided in the movable block defeated
Liquid channel, the hollow puncture needle end are fixedly connected with movable block, and the corresponding connection infusion channel of hollow puncture needle, movable block is in
The opposite side of empty puncture needle connection is provided with fluid communication pipe, the corresponding connection infusion channel of the fluid communication pipe, movable block
Top is additionally provided with actuating mechanism.
Further, on the inside of the movable block front end and support base between be provided with corresponding sealing sleeve pipe and infusion channel
Batching pig, the hollow puncture needle run through batching pig.
Further, the actuating mechanism includes the gear and rack gear that can correspond to fastening, and the rack gear is set to movable block
Top, the gear are correspondingly arranged in above rack gear, and the gear is rotatably serially connected on support base.
Further, the gear side wall is provided with multiple positioning protrusion.
Further, corresponding positioning protrusion is provided with multiple locating recesses on the inside of the support base.
Further, the support base is connected with sleeve fixing device.
Further, the fixed device of described sleeve pipe includes elastic support and blood vessel clip, and the blood vessel clip is correspondingly arranged in set
Pipe front end, blood vessel clip pass through elastic support connecting support seat.
Further, double fins are connected on the support base.
Further, the support base outer surface is provided with anti-skid chequer.
A kind of application method of above-mentioned novel puncture trochar, comprising the following steps:
S1. utilize liquid or drug to be perfused that pipe and its Outer elongate pipeline, infusion channel and hollow puncture will be in fluid communication
Needle emptying；
S2. blood vessel is pierced through with the needle point of hollow puncture needle, and trochar is promoted comprehensively, until casing protrudes into the blood vessel；
S3. actuating mechanism is stirred with finger, makes movable block that hollow puncture needle be driven to retreat, the front end retraction casing of hollow puncture needle
It is interior；
S4. fixed sleeving needle is whole.
The present invention has the advantages that
1, one-hand operation completes puncture process, the achievable auxiliary movement of another hand of operator, such as fixed skin or blood
Pipe, it is easy to use, help to promote puncture accuracy, reduces operation difficulty.
2, structure is simple, and manufacturing cost is low.
3, applied widely, it can be used during clinical treatment and medical experiment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of novel puncture trochar；
Fig. 2 is the detonation configuration figure of novel puncture trochar；
Fig. 3 is the cross-sectional view of novel puncture trochar；
Fig. 4 is that novel puncture trochar installs the structural schematic diagram after blood vessel clip；
Fig. 5 is that novel puncture trochar installs the structural schematic diagram after double fins.
Attached drawing mark:
Pipe, 7- batching pig, 8- is in fluid communication in 1- casing, the hollow puncture needle of 2-, 3- support base, 4- movable block, 5- infusion channel, 6-
Gear, 9- rack gear, 10- positioning protrusion, 11- locating recesses, 12- elastic support, 13- blood vessel clip, 14- double fins, 15- are anti-skidding
Line, 16- extension tube.
Specific embodiment
In order to solve the puncture needle being commonly used during clinical transfusion treatment and Bioexperiment at this stage on the market
It cannot be considered in terms of degree easy to use, operation difficulty, be needled the problem of comfort level and production cost of individual, novel puncture set is provided
Pipe needle and its application method.
In order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, implement below in conjunction with the present invention
Attached drawing in example, the technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment
It is a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel obtain without making creative work, shall fall within the protection scope of the present invention.
As shown in Fig. 1 to 5, the present embodiment provides novel puncture trochar, including casing 1, described sleeve pipe 1 can be metal
Or plastic flexible pipe, sliding sleeve is connected to the hollow puncture needle 2 that front end protrudes from casing 1 in casing 1, and 1 end of described sleeve pipe is fixed to be connected
It is connected to support base 3, sliding sleeve is connected to movable block 4 in the support base 3, and infusion channel 5 is provided in the movable block 4, described
Hollow 2 end of puncture needle is fixedly connected with movable block 4, the corresponding connection infusion channel 5 of hollow puncture needle 2, movable block 4 and hollow puncture
The opposite side that needle 2 connects, which is provided with, is in fluid communication pipe 6, and the corresponding connection infusion channel 5 of the fluid communication pipe 6 is in fluid communication
Pipe 6 has been installed when trochar produces has docked extension tube 16, to connect external infusion pipeline, also sets up above movable block 4
There is actuating mechanism.
The isolation of corresponding sealing sleeve pipe 1 and infusion channel 5 is provided between 4 front end of movable block and 3 inside of support base
Plug 7, the hollow puncture needle 2 run through batching pig 7.Batching pig 7 is sealing structure, when can prevent pouring liquid casing 1 with it is hollow
Gap between puncture needle 2 is overflowed or foreign enters infusion channel through the gap and pollutes.
The actuating mechanism includes the gear 8 and rack gear 9 that can correspond to fastening, and the rack gear 9 is set to 4 top of movable block,
The gear 8 is correspondingly arranged in 9 top of rack gear, and the gear 8 is rotatably serially connected on support base 3.8 side wall of gear is set
It is equipped with multiple positioning protrusion 10.Positioning protrusion 10 is corresponded on the inside of the support base 3 is provided with multiple locating recesses 11.Due to positioning
Protrusion 10 and the corresponding engagement of locating recesses 11, need rotate gear 8 to apply movable block 4 must when driving hollow puncture needle 2 mobile
Add certain thrust, effectively prevent the non-artificial movement of movable block 4, improves device security.
The support base 3 is connected with sleeve fixing device, and the fixed device of described sleeve pipe includes elastic support 12 and blood vessel clip
13, the blood vessel clip 13 is correspondingly arranged in 1 front end of casing, and blood vessel clip 13 passes through 12 connecting support seat 3 of elastic support.Blood vessel clip 13
Bottom is the holder that can block main casing 1, and top then has the Extendible flake for facilitating finger to press, facilitates operator by using finger
1 front end of casing is pushed down, puncture position is accurately positioned.Since blood vessel clip 13 is mounted on elastic support 12, after puncturing successfully, puncture
Casing is fixed in free blood vessel by the index finger pressure blood vessel clip 13 of hand.The blood vessel clip is generally used in biomedicine experiment,
Auxiliary positioning puncture is carried out to comparatively fine free blood vessel.
Double fins 14 can be installed additional on the support base 3, needed for use in trochars such as clinical treatments using the long period
In the case where, it can be fixed on the skin by double fins 14 with adhesive tape.
3 outer surface of support base is provided with anti-skid chequer 15.Anti-skid chequer 15 can be provided when operator's one hand fluctuates gear 8
Frictional force avoids that steady support base 3 can not be grabbed because operator has worn medical glove.
A kind of application method of above-mentioned novel puncture trochar, comprising the following steps:
S1. utilize liquid or drug to be perfused that pipe and its Outer elongate pipeline, infusion channel and hollow puncture will be in fluid communication
Needle emptying；
S2. blood vessel is pierced through with the needle point of hollow puncture needle, and trochar is promoted comprehensively, until casing protrudes into the blood vessel；
S3. actuating mechanism is stirred with finger, makes movable block that hollow puncture needle be driven to retreat, the front end retraction casing of hollow puncture needle
It is interior；
S4. fixed sleeving needle is whole.
For the present embodiment, when practical operation, first the conveyance conduit of extension tube 16 and liquid to be perfused or drug is connected
It connects, makes that extension tube 16, that pipe 6, infusion channel 5 and hollow needle point 2 is in fluid communication is hydraulically full and empty；Then fasten the defeated of drug
The valve switch for sending pipe pierces through the tissue on blood vessel using the part of the prominent casing 1 of hollow puncture needle 2, hollow puncture needle 2 is connected
It is protruded into blood vessel with casing 1；Then thumb and middle finger are such as used with one hand clamping brace seat 3(), handsetting gear 8(is such as with food
Refer to) make movable block 4 that hollow puncture needle 2 be driven to retreat, in retraction casing 1；Finally fix trochar entirety.
Due to that can be used using the present invention, singlehanded completion is punctured and the process of the withdraw of the needle, operator can be punctured with strong hand completion and be grasped
Make, another hand can be used to fixed blood vessel or operate the devices such as ultrasonic probe positioning blood vessel, therefore the present invention is effectively improved and worn
Accuracy is pierced, operation difficulty is reduced.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions, i.e., all according to the made equivalent changes and modifications of the application range, should still belong to
In covering scope of the present invention.
Claims (10)
1. novel puncture trochar, including casing, it is socketed with the hollow puncture needle that front end protrudes from casing in described sleeve pipe, it is special
Sign is that described sleeve pipe end is fixedly connected with support base, and sliding sleeve is connected to movable block in the support base, in the movable block
It is provided with infusion channel, the hollow puncture needle end is fixedly connected with movable block, and the corresponding connection infusion channel of hollow puncture needle is moved
The opposite side that motion block is connect with hollow puncture needle is provided with fluid communication pipe, and the corresponding connection infusion of the fluid communication pipe is logical
Road, movable block top are additionally provided with actuating mechanism.
2. novel puncture trochar according to claim 1, which is characterized in that on the inside of the movable block front end and support base
Between be provided with the batching pig of corresponding sealing sleeve pipe and infusion channel, the hollow puncture needle runs through batching pig.
3. novel puncture trochar according to claim 1, which is characterized in that the actuating mechanism includes that can correspond to fastening
Gear and rack gear, the rack gear is set at the top of movable block, and the gear is correspondingly arranged in above rack gear, and the gear can revolve
It is serially connected on support base with turning.
4. novel puncture trochar according to claim 3, which is characterized in that the gear side wall is provided with multiple positioning
Protrusion.
5. novel puncture trochar according to claim 4, which is characterized in that corresponding positioning protrusion on the inside of the support base
It is provided with multiple locating recesses.
6. novel puncture trochar according to claim 1, which is characterized in that the support base is connected with the fixed dress of casing
It sets.
7. novel puncture trochar according to claim 6, which is characterized in that the fixed device of described sleeve pipe includes elasticity branch
Frame and blood vessel clip, the blood vessel clip are correspondingly arranged in casing front end, and blood vessel clip passes through elastic support connecting support seat.
8. novel puncture trochar according to claim 1, which is characterized in that be connected with double fins on the support base.
9. novel puncture trochar according to claim 1, which is characterized in that the support base outer surface is provided with anti-skidding
Line.
10. a kind of application method of the novel puncture trochar as described in claim 1-9 any one, which is characterized in that including
Following steps:
S1. utilize liquid or drug to be perfused that pipe and its Outer elongate pipeline, infusion channel and hollow puncture will be in fluid communication
Needle emptying；
S2. blood vessel is pierced through with the needle point of hollow puncture needle, and trochar is promoted comprehensively, until casing protrudes into the blood vessel；
S3. actuating mechanism is stirred with finger, makes movable block that hollow puncture needle be driven to retreat, the front end retraction casing of hollow puncture needle
It is interior；
S4. fixed sleeving needle is whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066155.8A CN109675145A (en) | 2019-01-24 | 2019-01-24 | Novel puncture trochar and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066155.8A CN109675145A (en) | 2019-01-24 | 2019-01-24 | Novel puncture trochar and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109675145A true CN109675145A (en) | 2019-04-26 |
Family
ID=66194470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910066155.8A Pending CN109675145A (en) | 2019-01-24 | 2019-01-24 | Novel puncture trochar and its application method |
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| Country | Link |
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| CN (1) | CN109675145A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110169813A (en) * | 2019-05-29 | 2019-08-27 | 李琤 | A kind of hepatopathy puncture location racks |
| CN110897688A (en) * | 2019-12-27 | 2020-03-24 | 上海长征医院 | Guide wire-needle integrated arteriovenous puncture device capable of being operated by one hand |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5290310A (en) * | 1991-10-30 | 1994-03-01 | Howmedica, Inc. | Hemostatic implant introducer |
| CN2922935Y (en) * | 2006-01-06 | 2007-07-18 | 威海洁瑞医用制品有限公司 | Straight type closed vein retaining needle |
| CN202590067U (en) * | 2012-05-03 | 2012-12-12 | 韩宏光 | Safety endovascular puncture detaining needle |
| CN107072604A (en) * | 2014-03-14 | 2017-08-18 | Sg医疗科技有限公司 | A kind of cannula assembly and method |
-
2019
- 2019-01-24 CN CN201910066155.8A patent/CN109675145A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5290310A (en) * | 1991-10-30 | 1994-03-01 | Howmedica, Inc. | Hemostatic implant introducer |
| CN2922935Y (en) * | 2006-01-06 | 2007-07-18 | 威海洁瑞医用制品有限公司 | Straight type closed vein retaining needle |
| CN202590067U (en) * | 2012-05-03 | 2012-12-12 | 韩宏光 | Safety endovascular puncture detaining needle |
| CN107072604A (en) * | 2014-03-14 | 2017-08-18 | Sg医疗科技有限公司 | A kind of cannula assembly and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110169813A (en) * | 2019-05-29 | 2019-08-27 | 李琤 | A kind of hepatopathy puncture location racks |
| CN110169813B (en) * | 2019-05-29 | 2022-02-08 | 李琤 | Liver disease puncture locating rack |
| CN110897688A (en) * | 2019-12-27 | 2020-03-24 | 上海长征医院 | Guide wire-needle integrated arteriovenous puncture device capable of being operated by one hand |
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