CN103446656A - Anti-breaking nerve block indwelling catheter needle - Google Patents
Anti-breaking nerve block indwelling catheter needle Download PDFInfo
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- CN103446656A CN103446656A CN2012101794470A CN201210179447A CN103446656A CN 103446656 A CN103446656 A CN 103446656A CN 2012101794470 A CN2012101794470 A CN 2012101794470A CN 201210179447 A CN201210179447 A CN 201210179447A CN 103446656 A CN103446656 A CN 103446656A
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- conduit
- discounting
- closing member
- nook closing
- connection tube
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Abstract
An anti-breaking nerve block indwelling catheter needle comprises a needle core and a catheter. The needle core penetrates the inside of the catheter, at least one through hole is formed in the side wall of the front end of the catheter, the tail end of the catheter is fixedly connected with a connecting tube, a rubber plunger is arranged in the connecting tube, the periphery of the rubber plunger is sealed with the inner wall of the connecting tube, a handle is arranged at the rear end of the connecting tube, the needle core penetrates the rubber plunger, the rear end of the needle core is connected with the handle, a side tube is arranged on the side wall of the connecting tube in front of the rubber plunger, a channel is arranged in the needle core, an opening is formed in the side wall of the needle core positioned in the connecting tube and in front of the rubber plunger, the opening is communicated with the channel, and an anti-breaking fixing apparatus is arranged outside the catheter in front of the connecting tube. Continuous infusion of liquid medicines can be ensured by the aid of the through hole in the side wall of the front end of the catheter, the catheter can be prevented from breaking and blocking by the aid of the anti-breaking fixing apparatus, a 45-degree included angle is formed between an inclined surface of a needle tip and the axial direction of the needle core, resistance is conveniently sensed when a tunica vaginalis or fascia is broken through, the needle is not sharp, and nerves are not easily injured.
Description
Technical field:
The present invention relates to the mankind life article.Relate in particular to medical apparatus and instruments, particularly catheter needle, concrete is a kind of anti-discounting nerve block inlying catheter pin.
Background technology:
Nerve block technique can realize extending anesthesia, Postoperative Analgesia After and sympatheticoparalytic effect according to the needs of operation continuously, can realize the gradation administration, thereby reduces the poisoning danger of local anaesthetics simultaneously.In prior art, adopt different sense method and nerve stimulation positioning mode to carry out nerve block anesthesia, use the peripheral artery vein remaining needle or connect hard external conduit, complete by disposable injection.While adopting the peripheral vein indwelling tube, adopt different sense method to judge nerve location, the sleeve pipe nook closing member extracted, trocar sheath fixedly injection and indwelling to having performed the operation.Because the Peripheral Nerves sleeve pipe is softer, easily give a discount, a sleeve pipe front end opening only in addition, thus easily by soft tissue, stopped up, and make to continue the injection difficulty; Nook closing member is sharper in addition, while finding different sense, and easy injured nerve.And while adopt connecting hard external conduit, insert method in the substantially similar pin of operational approach, first use a thicker iv cannule, when determine arrive at neural near the time, nook closing member is extracted, then will be connected hard external conduit and insert, the overcoat bobbin is extracted, the fixing hard external conduit that connects, this method, except possessing above shortcoming, also needs to replace tube core, easily displacement, because hard external conduit must pass through from the trocar, so the required trocar is thicker, larger to tissue injury.
Summary of the invention:
The object of the present invention is to provide a kind of anti-discounting nerve block inlying catheter pin, described this anti-discounting nerve block inlying catheter pin is softer except solving in prior art the Peripheral Nerves sleeve pipe, easily gives a discount, easily by soft tissue, stopped up, continues that injection difficulty, nook closing member are sharper, the technical problem of easy injured nerve.
This anti-discounting nerve block inlying catheter pin of the present invention, comprise a nook closing member and a conduit, wherein, described nook closing member passes in described conduit, the front end of nook closing member is provided with needle point, described needle point extends to outside the front end face of conduit, be provided with at least one through hole on the sidewall of catheter proximal end, the tail end of conduit is fixedly connected with a connection tube, be provided with a rubber plunger in described connection tube, the periphery of described rubber plunger and the inner wall sealing of connection tube, the rear end of connection tube is provided with a handles, nook closing member passes from rubber plunger, the rear end of nook closing member is fixedly connected with described handle, be provided with a side pipe on the sidewall of the connection tube in rubber plunger the place ahead, described side pipe is communicated with connection tube, be provided with a passage in nook closing member, nook closing member is being positioned at connection tube, be provided with an opening on the sidewall in rubber plunger the place ahead, described opening communicates with described passage, the front opening of passage is in needle point, the conduit in connection tube the place ahead is outside equipped with an anti-discounting holder, described anti-discounting holder comprises a base, be provided with a fixing hole in described base, described conduit is through described fixing hole, be provided with a groove in the base of fixing hole front side, described groove extends along arc direction.
Further, the central axis of connection tube overlaps with the extended line of the central axis of conduit.
Further, be connected with a pad on the bottom surface of described base, the area of described pad is greater than the area of base end face.
Further, be provided with two X-ray shielding lines in the inwall of described conduit, any described X-ray shielding line all extends along the length direction of conduit.
Further, an end of described side pipe is connected with second conduit, and an end of described the second conduit is connected with a connecting cylinder.
Further, be connected with a syringe or analgesia pump or shutoff knob on described connecting cylinder.
Further, be provided with scale on the outer wall of nook closing member.
Further, described needle point comprises an inclined-plane, the axial angles that become 45 degree of described inclined-plane and nook closing member.
Further, the bearing of trend of the bearing of trend of the initial segment of the groove in the base of fixing hole front side and clearing end is the angle between 45 degree～135 degree.
Operation principle of the present invention is: first adopt sheath or fascia to break through injection position, legal position, after local anaesthesia, at first the needle point on nook closing member is inserted in subcutaneous tissue, along dissecting pathway, thrust, when breaking through sheath or fascia, first by side pipe, inject 3～5ml local anaesthetics, local anaesthetics is by the opening in the nook closing member sidewall, nook closing member internal channel and needle point inner opening inject subcutaneous tissue, then extract afterwards mutually nook closing member, conduit continues to stay in subcutaneous tissue, again conduit is sent into to about 3cm along the nerve trend, then will be enclosed within the outer anti-discounting fixture of conduit and slide to skin along conduit, groove holding conduit in anti-discounting fixture, become the circular arc angle with skin, can prevent that conduit from giving a discount, also the available pad pasting holder of preventing giving a discount is fixed on skin.Again side pipe is connected to syringe or analgesia pump, inject the related drugs such as analgesics.After extracting nook closing member, the rubber plunger in connection tube automatic sealing package is at once blocked connection tube, prevents that medicine from overflowing.Because the catheter proximal end sidewall is provided with through hole, even the catheter proximal end mouth is stopped up by soft tissue, also can guarantee the medicinal liquid continuous infusion.X-ray shielding line in conduit can help to observe catheter position under X-ray and understand the injection situation.Inclined-plane in needle point axially becomes 45 angles of spending with nook closing member, adopts circular tangent plane simultaneously, experiences resistance while being convenient to break through sheath or fascia, and nook closing member is not sharp, is difficult for injured nerve, simultaneously, as the catheter needle mistake, thrusts blood vessel, and the blood back at connection tube place can reflect.
The present invention compares with prior art, and its effect is actively with obvious.The present invention is provided with through hole at the catheter proximal end sidewall, even the catheter proximal end mouth is stopped up by soft tissue, also can guarantee the medicinal liquid continuous infusion; Anti-discounting fixture is set outside conduit, can prevents conduit discounting obstruction; Inclined-plane in needle point axially becomes 45 angles of spending with nook closing member, adopts circular tangent plane simultaneously, experiences resistance while being convenient to break through sheath or fascia, and nook closing member is not sharp, is difficult for injured nerve; Be provided with opening on nook closing member sidewall in connection tube, when needle point is broken through sheath or fascia, can first inject local anaesthetics by opening, strut sheath, be convenient to conduit and send into.
The accompanying drawing explanation:
Fig. 1 is the structural representation of nook closing member, conduit and connection tube in anti-discounting nerve block inlying catheter pin of the present invention.
Fig. 2 is the structural representation of the anti-discounting fixture in anti-discounting nerve block inlying catheter pin of the present invention.
Fig. 3 is the structural representation of anti-discounting nerve block inlying catheter pin of the present invention.
Fig. 4 is needle point in anti-discounting nerve block inlying catheter pin of the present invention and the structural representation of catheter proximal end.
Fig. 5 is needle point in anti-discounting nerve block inlying catheter pin of the present invention and another structural representation of catheter proximal end.
Fig. 6 is the structural representation of the connection tube in anti-discounting nerve block inlying catheter pin of the present invention.
The specific embodiment:
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5 and Fig. 6, anti-discounting nerve block inlying catheter pin of the present invention, comprise a nook closing member 2 and a conduit 1, wherein, described nook closing member 2 passes in described conduit 1, the front end of nook closing member 2 is provided with needle point 3, described needle point 3 extends to outside the front end face of conduit 1, be provided with at least one through hole 4 on the sidewall of conduit 1 front end, the tail end of conduit 1 is fixedly connected with a connection tube 5, be provided with a rubber plunger 6 in described connection tube 5, the inner wall sealing of the periphery of described rubber plunger 6 and connection tube 5, the rear end of connection tube 5 is provided with a handles 16, nook closing member 2 passes from rubber plunger 6, the rear end of nook closing member 2 is fixedly connected with described handle 16, be provided with a side pipe 7 on the sidewall of the connection tube 5 in rubber plunger 6 the place aheads, described side pipe 7 is communicated with connection tube 5, be provided with a passage in nook closing member 2, nook closing member 2 is being positioned at connection tube 5, be provided with an opening 8 on the sidewall in rubber plunger 6 the place aheads, described opening 8 communicates with described passage, the front opening of passage is in needle point 3, the conduit 1 in connection tube 5 the place aheads is outside equipped with an anti-discounting holder 9, described anti-discounting holder 9 comprises a base 10, be provided with a fixing hole 11 in described base 10, described conduit 1 is through described fixing hole 11, be provided with a groove 12 in the base 10 of fixing hole 11 front sides, described groove 12 extends along arc direction.
Further, the central axis of connection tube 5 overlaps with the extended line of the central axis of conduit 1.
Further, be connected with a pad 13 on the bottom surface of described base 10, the area of described pad 13 is greater than the area of base 10 bottom surfaces.
Further, be provided with two X-ray shielding lines in the inwall of described conduit 1, any described X-ray shielding line all extends along the length direction of conduit 1.
Further, an end of described side pipe 7 is connected with second conduit 14, and an end of described the second conduit 14 is connected with a connecting cylinder 15.
Further, be connected with a syringe or analgesia pump or shutoff knob on described connecting cylinder 15.
Further, be provided with scale on the outer wall of nook closing member 2.
Further, described needle point 3 comprises an inclined-plane, the axial angles that become 45 degree of described inclined-plane and nook closing member 2.
Further, the bearing of trend of the bearing of trend of the initial segment of the groove 12 in the base 10 of fixing hole front side and clearing end is the angle between 45 degree～135 degree.
The operation principle of the present embodiment is: first adopt sheath or fascia to break through injection position, legal position, after local anaesthesia, at first the needle point 3 on nook closing member 2 is inserted in subcutaneous tissue, along dissecting pathway, thrust, when breaking through sheath or fascia, first by side pipe 7, inject 3～5ml local anaesthetics, local anaesthetics is by the opening 8 in nook closing member 2 sidewalls, nook closing member 2 internal channels and needle point 3 inner openings 8 inject subcutaneous tissue, then extract afterwards mutually nook closing member 2, conduit 1 continues to stay in subcutaneous tissue, again conduit 1 is sent into to about 3cm along the nerve trend, then will be enclosed within conduit 1 outer anti-discounting fixture and slide to skin along conduit 1, groove 12 holding conduits 1 in anti-discounting fixture, become the circular arc angle with skin, can prevent that conduit 1 from giving a discount, also the available pad pasting holder 9 of preventing giving a discount is fixed on skin.Again side pipe 7 is connected to syringe or analgesia pump, inject the related drugs such as analgesics.After extracting nook closing member 2, the rubber plunger 6 in connection tube 5 automatic sealing package is at once blocked connection tube 5, prevents that medicine from overflowing.Because conduit 1 front end side wall is provided with through hole 4, even conduit 1 front port is stopped up by soft tissue, also can guarantee the medicinal liquid continuous infusion.X-ray shielding line in conduit 1 can help to observe conduit 1 position under X-ray and understand the injection situation.Inclined-plane in needle point 3 axially becomes the angle of 45 degree with nook closing member 2, adopts circular tangent plane simultaneously, experiences resistance while being convenient to break through sheath or fascia, and nook closing member 2 is not sharp, is difficult for injured nerve.
Claims (9)
1. an anti-discounting nerve block inlying catheter pin, comprise a nook closing member and a conduit, it is characterized in that: described nook closing member passes in described conduit, the front end of nook closing member is provided with needle point, described needle point extends to outside the front end face of conduit, be provided with at least one through hole on the sidewall of catheter proximal end, the tail end of conduit is fixedly connected with a connection tube, be provided with a rubber plunger in described connection tube, the periphery of described rubber plunger and the inner wall sealing of connection tube, the rear end of connection tube is provided with a handles, nook closing member passes from rubber plunger, the rear end of nook closing member is fixedly connected with described handle, be provided with a side pipe on the sidewall of the connection tube in rubber plunger the place ahead, described side pipe is communicated with connection tube, be provided with a passage in nook closing member, nook closing member is being positioned at connection tube, be provided with an opening on the sidewall in rubber plunger the place ahead, described opening communicates with described passage, the front opening of passage is in needle point, the conduit in connection tube the place ahead is outside equipped with an anti-discounting holder, described anti-discounting holder comprises a base, be provided with a fixing hole in described base, described conduit is through described fixing hole, be provided with a groove in the base of fixing hole front side, described groove extends along arc direction.
2. anti-discounting nerve block inlying catheter pin as claimed in claim 1, it is characterized in that: the central axis of connection tube overlaps with the extended line of the central axis of conduit.
3. anti-discounting nerve block inlying catheter pin as claimed in claim 1, it is characterized in that: be connected with a pad on the bottom surface of described base, the area of described pad is greater than the area of base end face.
4. anti-discounting nerve block inlying catheter pin as claimed in claim 1 is characterized in that: be provided with two X-ray shielding lines in the inwall of described conduit, any described X-ray shielding line all extends along the length direction of conduit.
5. anti-discounting nerve block inlying catheter pin as claimed in claim 1, it is characterized in that: an end of described side pipe is connected with second conduit, and an end of described the second conduit is connected with a connecting cylinder.
6. anti-discounting nerve block inlying catheter pin as claimed in claim 5, is characterized in that: be connected with a syringe or analgesia pump or shutoff knob on described connecting cylinder.
7. anti-discounting nerve block inlying catheter pin as claimed in claim 1, is characterized in that: on the outer wall of nook closing member, be provided with scale.
8. anti-discounting nerve block inlying catheter pin as claimed in claim 1, it is characterized in that: described needle point comprises an inclined-plane, the axial angles that become 45 degree of described inclined-plane and nook closing member.
9. anti-discounting nerve block inlying catheter pin as claimed in claim 1 is characterized in that: the bearing of trend of the initial segment of the groove in the base of fixing hole front side and the bearing of trend of clearing end are the angle between 45 degree～135 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101794470A CN103446656A (en) | 2012-06-01 | 2012-06-01 | Anti-breaking nerve block indwelling catheter needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101794470A CN103446656A (en) | 2012-06-01 | 2012-06-01 | Anti-breaking nerve block indwelling catheter needle |
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| Publication Number | Publication Date |
|---|---|
| CN103446656A true CN103446656A (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101794470A Pending CN103446656A (en) | 2012-06-01 | 2012-06-01 | Anti-breaking nerve block indwelling catheter needle |
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| CN (1) | CN103446656A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104189973A (en) * | 2014-09-16 | 2014-12-10 | 上海市同济医院 | Nerve blocking device using ultrasonic guide |
| CN105617511A (en) * | 2016-03-09 | 2016-06-01 | 复旦大学附属金山医院 | Non-deforming continuous peripheral nerve blocking indwelling catheter |
| CN105832444A (en) * | 2016-03-17 | 2016-08-10 | 青岛大学附属医院 | Continuous enteral nutrition infusion device for mouse |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4820282A (en) * | 1986-10-20 | 1989-04-11 | City Of Hope National Medical Center | Sheath for butterfly needles |
| CN1159763A (en) * | 1994-09-30 | 1997-09-17 | 维尼特克国际公司 | Catheter anchoring system |
| CN1220894A (en) * | 1997-12-23 | 1999-06-30 | 朱定华 | Disposable external-cover-type retaining needle |
| CN201492486U (en) * | 2009-06-10 | 2010-06-02 | 西安同享医疗科技有限公司 | Multipurpose medical puncture needle |
| CN201612673U (en) * | 2009-07-20 | 2010-10-27 | 余斌 | Improved peripheral nerve block retaining trocar |
| CN201631333U (en) * | 2010-02-01 | 2010-11-17 | 常瑞兰 | Minimally invasive epidural puncture needle |
| CN202637679U (en) * | 2012-06-01 | 2013-01-02 | 上海市同济医院 | Anti-breaking nerve block remaining catheter needle |
-
2012
- 2012-06-01 CN CN2012101794470A patent/CN103446656A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4820282A (en) * | 1986-10-20 | 1989-04-11 | City Of Hope National Medical Center | Sheath for butterfly needles |
| CN1159763A (en) * | 1994-09-30 | 1997-09-17 | 维尼特克国际公司 | Catheter anchoring system |
| CN1220894A (en) * | 1997-12-23 | 1999-06-30 | 朱定华 | Disposable external-cover-type retaining needle |
| CN201492486U (en) * | 2009-06-10 | 2010-06-02 | 西安同享医疗科技有限公司 | Multipurpose medical puncture needle |
| CN201612673U (en) * | 2009-07-20 | 2010-10-27 | 余斌 | Improved peripheral nerve block retaining trocar |
| CN201631333U (en) * | 2010-02-01 | 2010-11-17 | 常瑞兰 | Minimally invasive epidural puncture needle |
| CN202637679U (en) * | 2012-06-01 | 2013-01-02 | 上海市同济医院 | Anti-breaking nerve block remaining catheter needle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104189973A (en) * | 2014-09-16 | 2014-12-10 | 上海市同济医院 | Nerve blocking device using ultrasonic guide |
| CN105617511A (en) * | 2016-03-09 | 2016-06-01 | 复旦大学附属金山医院 | Non-deforming continuous peripheral nerve blocking indwelling catheter |
| CN105832444A (en) * | 2016-03-17 | 2016-08-10 | 青岛大学附属医院 | Continuous enteral nutrition infusion device for mouse |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20131218 |