CN201239183Y - Peripheral nerve block indwelling trocars - Google Patents
Peripheral nerve block indwelling trocars Download PDFInfo
- Publication number
- CN201239183Y CN201239183Y CNU2008201520639U CN200820152063U CN201239183Y CN 201239183 Y CN201239183 Y CN 201239183Y CN U2008201520639 U CNU2008201520639 U CN U2008201520639U CN 200820152063 U CN200820152063 U CN 200820152063U CN 201239183 Y CN201239183 Y CN 201239183Y
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- CN
- China
- Prior art keywords
- sleeve
- closing member
- peripheral nerve
- nook closing
- trocar
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- 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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Abstract
The utility model relates to a peripheral nerve retardance trocar which comprises a hollow sleeve. A trocar core is arranged in the sleeve, a trocar tip is arranged on the top end of the trocar core, the trocar tip extends out of the top end of the sleeve, the side wall of the front end of the sleeve is provided with at least one side hole, a rubber plunger is arranged in the tail end of the sleeve, the tail end of the sleeve is also provided with a side tube which is arranged at the front end of the rubber plunger, the side tube and the sleeve are communicated with each other, the tail end of the sleeve is provided with a hand-holding wing, and the trocar core passes through the rubber plunger and is connected with the hand-holding wing. The utility model can complete the continuous peripheral nerve retardance once by using the heteresthesia method or the nerve stimulator positioning method and does not need to change the tube. The operation is simple, and the accuracy is high. The catheter is tightly jointed with the peripheral tissue and can not easily slide out. A plurality of side holes are arranged on the front end of the sleeve to guarantee the unblocked transfution of the liquid medicine. Nontransparent X-ray scales are marked on the sleeve, and the tube positioning and medicament injection conditions can be observed by X-ray examination. The trocar core uses a solid blunt trocar tip to reduce the direct injury of the peripheral nerve.
Description
Technical field:
This utility model relates to the mankind life article, relates in particular to medical apparatus and instruments, the particularly trocar, and concrete is a kind of peripheral nerve block indwelling trocar.
Background technology:
The peripheral nerve block technology can realize prolonging anesthesia, postoperative analgesia and sympatheticoparalytic effect according to the needs of operation continuously, can realize the gradation administration simultaneously, thereby reduces the danger that local anaesthetics is poisoned.In the prior art, carry out nerve block anesthesia with different sense method and nerve stimulation positioning mode in clinical, use peripheral artery vein remaining needle or company's hard external conduit, finish by disposable injection.When adopting the peripheral vein indwelling tube, adopt different sense method to judge nerve location, the sleeve pipe nook closing member is extracted, fixedly injection and keep somewhere operation and finish of trocar sheath.Because peripheral vein remaining needle sleeve pipe is softer, easily give a discount, a sleeve pipe front end opening only so easily stopped up by soft tissue, continues the injection difficulty and make in addition; Nook closing member is sharper in addition, when seeking different sense, and injured nerve easily; The trocar can't replace the stimulation pin that links to each other with nerve stimulator simultaneously.And when adopt connecting hard external conduit, insert method in the similar substantially pin of operational approach, promptly use a thicker iv cannule earlier, when determine to arrive at neural near the time, nook closing member is extracted, will connect hard external conduit again and insert, the overcoat bobbin is extracted, the fixing hard external conduit that connects, this method also needs to replace tube core except possessing above shortcoming, displacement easily, because hard external conduit must pass through from the trocar, and is so the required trocar is thicker, bigger to tissue injury.
Summary of the invention:
The purpose of this utility model is to provide a kind of peripheral nerve block indwelling trocar, and described this peripheral nerve block indwelling casing tube will solve periphery iv cannule in the prior art, connect hard external conduit is easily stopped up, continues injection difficulty, easily displacement and the bigger technical problem of tissue injury by soft tissue.
A kind of peripheral nerve block indwelling trocar of this utility model is made of the sleeve pipe of a nook closing member and a hollow, described nook closing member is arranged in the described sleeve pipe, wherein, the front end of described nook closing member is provided with needle point, described needle point extends described telescopic front end face, the sidewall of telescopic leading section is provided with at least one side opening, telescopic tail end is set with a connection tube, the internal diameter of described connection tube is greater than telescopic internal diameter, the central axis of connection tube overlaps with the extended line of sleeve pipe central axis, be provided with a rubber plunger in the connection tube, nook closing member passes described rubber plunger, and the tail end of nook closing member is set with holds the hands wing, describedly holds the outside that the hands wing is positioned at connection tube, the connection tube sidewall in rubber plunger the place ahead is provided with a side pipe, and described side pipe is communicated with connection tube.
Further, be provided with an X-ray shielding line in the described telescopic inwall, described X-ray shielding line is parallel with the sleeve pipe central axis.
Further, an end of described side pipe is connected with a conduit, and an end of described conduit is connected with a sleeve.
Further, but be connected with the knob of a syringe or analgesia pump or shutoff on the described sleeve.
Further, described telescopic outer wall is provided with scale.
Further, the axial angles that become 30 degree of the inclined-plane of described needle point and nook closing member.
Further, the tail end of described nook closing member passes the described hands wing of holding, and the tail end of nook closing member is connected with a plastic beads, is connected with electric lead on the nook closing member of described plastic beads front end, and an end of described electric lead is connected with a plug.
Further, described plug is connected with the electrical socket of a nerve stimulator.
Further, described plastic bushing provides an insulating barrier for the nerve stimulation pin as nook closing member.
Operation principle of the present utility model is: if adopt different sense method location, after the local anaesthesia, at first insert in the subcutaneous tissue, thrust along dissecting pathway by the needle point on the nook closing member, when the patient has different sense, extract nook closing member by holding the hands wing, sleeve pipe is sent into 1-2cm more forward, fixing then, connect syringe or analgesia pump by the side pipe on the sleeve pipe again, inject related drugs such as analgesics, the rubber plunger by the sleeve pipe tail end when extracting nook closing member blocks sleeve pipe at once automatically, prevents that medicine from overflowing from sleeve pipe.If adopt the nerve stimulator location, the end of nerve stimulator by lead and nook closing member is connected, after the local anaesthesia, nook closing member is thrust along dissecting pathway, put electric current 4mv earlier, as muscle contraction, the electric current of adjusting stimulator can be determined nerve nearby to still having this innerv muscle contraction below the 0.5mv, extracts nook closing member, trocar sheath is sent into 1-2cm forward, fixing, connect syringe or analgesia pump by the side pipe on the sleeve pipe again, inject related drugs such as analgesics, rubber plunger by the sleeve pipe tail end when extracting nook closing member blocks sleeve pipe at once automatically, prevents that medicine from overflowing from sleeve pipe.
Concrete, sleeve pipe can adopt insulant to make, and perhaps telescopic medial wall is provided with insulating barrier, can play insulating effect when entangling nook closing member.Because the sleeve pipe front end is provided with at least one side opening, can guarantee that medicinal liquid continues infusion in addition.X-ray shielding line in the sleeve pipe can help to observe sleeve position and understand the injection situation under X-ray, sleeve pipe is marked with scale simultaneously, can locate.The rubber plunger of tube ends is shutoff immediately when nook closing member is extracted, and telescopic sidewall is provided with side pipe, can connect syringe and analgesia pump.Nook closing member of the present utility model is solid, and pinpoint inclined plane is more blunt 30 degree, can reduce perineural coup injury.
This utility model is compared with prior art, and its effect is actively with tangible.This utility model uses different sense method and all disposable operation of nerve stimulator positioning mode to finish continuous peripheral nervous retardance, does not need replace tubes, and simple to operate, accuracy is higher.And conduit and surrounding tissue fit closely, is difficult for skidding off.The sleeve pipe front end has a plurality of side openings, has guaranteed that the medicinal liquid infusion is unimpeded.Indicate the scale of X-ray opaque, can understand pipe and the injection situation of putting by perspective.Adopt solid more blunt needle point can reduce to perineural coup injury.
Description of drawings:
Fig. 1 is the structural representation of this utility model peripheral nerve block indwelling trocar.
Fig. 2 is another structural representation of this utility model peripheral nerve block indwelling trocar.
The specific embodiment:
Embodiment 1:
As shown in Figure 1, a kind of peripheral nerve block indwelling trocar of this utility model, sleeve pipe 1 by a nook closing member 2 and a hollow constitutes, described nook closing member 2 is arranged in the described sleeve pipe 1, wherein, the front end of described nook closing member 2 is provided with needle point 3, described needle point 3 extends the front end face of described sleeve pipe 1, the sidewall of the leading section of sleeve pipe 1 is provided with at least one side opening 4, the tail end of sleeve pipe 1 is set with a connection tube 14, the internal diameter of described connection tube 14 is greater than telescopic internal diameter, the central axis of connection tube 14 overlaps with the extended line of sleeve pipe central axis, be provided with a rubber plunger 5 in the connection tube 14, nook closing member 2 passes described rubber plunger 5, and the tail end of nook closing member 2 is set with holds the hands wing 7, describedly holds the outside that the hands wing 7 is positioned at connection tube 14, connection tube 14 sidewalls in rubber plunger 5 the place aheads are provided with a side pipe 6, and described side pipe 6 is communicated with connection tube 14.
Further, described sleeve pipe 1 inwall is provided with an X-ray shielding line, and the axis of described X-ray shielding line and described sleeve pipe 1 parallels.
Further, be connected with a conduit 8 on the described side pipe 6, be connected with a sleeve 9 on the described conduit 8.
Further, but be connected with the knob of a syringe or analgesia pump shutoff on the described sleeve 9.
Further, the outer wall of described sleeve pipe 1 is provided with scale.
Further, the axis of the inclined-plane of described needle point 3 and described nook closing member 2 is the angle of 30 degree.
Further, described plastic bushing provides an insulating barrier for the nerve stimulation pin as nook closing member just at the right time.
When this utility model uses, adopt different sense method location, earlier according to dissecting the location, determine point of puncture, after the local anaesthesia, hold peripheral nervous retardance indwelling casing tube 1 pin with the right hand and thrust along dissecting the location, when the patient has different sense, left hand is extracted nook closing member 2, and the right hand is sent trocar sheath 1 pin into 1-2cm forward gently again, and is fixing then, inject local anaesthetics by side pipe 6, art finishes passes through side pipe 6 connection analgesia pumps again, and the plunger 5 by sleeve pipe 1 tail end blocks sleeve pipe 1 then, prevents that medicine from overflowing from sleeve pipe 1.
A kind of peripheral nerve block indwelling trocar of this utility model, sleeve pipe 1 by a hollow constitutes, be provided with a nook closing member 2 in the described sleeve pipe 1, the top of described nook closing member 2 is provided with a needle point 3, described needle point 3 stretches out the top of described sleeve pipe 1, the sidewall of the front end of described sleeve pipe 1 is provided with at least one side opening 4, be provided with a plunger 5 in the tail end of described sleeve pipe 1, the tail end of described sleeve pipe 1 also is provided with a side pipe 6, described side pipe 6 is arranged on the front end of described plunger 5, described side pipe 6 and described sleeve pipe 1 are connected, the tail end of described sleeve pipe 1 is provided with one and holds the hands wing 7, described nook closing member 2 passes described plunger 5, described nook closing member 2 is connected with the described hands wing 7 of holding, one end of described nook closing member 2 stretches out the described hands wing 7 of holding, the end of described nook closing member 2 is provided with a plastic beads 10, on the nook closing member 2 of described plastic beads front end, be connected with lead 11, be connected with a socket 12 on the described lead 11, the plug 13 of a described socket 12 and a nerve stimulator is connected, and also is connected with the pliers of nerve stimulator on the tail end of described nook closing member 2.
Further, described sleeve pipe 1 inwall is provided with an X-ray shielding line (not shown), and the axis of described X-ray shielding line and described sleeve pipe 1 parallels.
Further, be connected with a conduit 8 on the described side pipe 6, be connected with a sleeve 9 on the described conduit 8.
Further, but be connected with the knob of a syringe or analgesia pump or shutoff on the described sleeve 9.
Further, the outer wall of described sleeve pipe 1 is provided with scale.
Further, the angle that axially is 30 degree of the inclined-plane of described needle point 3 and described nook closing member 2.
Further, described sleeve pipe 1 provides an insulating barrier for the nerve stimulation pin as nook closing member just at the right time.
When this utility model uses, employing nerve stimulator location, after the local anaesthesia, the right hand is held peripheral nervous retardance indwelling casing tube 1 pin and is thrust along dissecting the location, put electric current 4mv earlier, as muscle contraction, the electric current of adjusting stimulator can be determined nerve nearby to still having this innerv muscle contraction below the 0.5mv, and promptly left hand is extracted nook closing member 2, left hand is sent trocar sheath 1 into 1-2cm forward gently, fixing, inject local anaesthetics by side pipe 6, art finishes again by side pipe 6 connection analgesia pumps, rubber plunger 5 by sleeve pipe 1 tail end blocks sleeve pipe 1 then, prevents that medicine from overflowing from sleeve pipe 1.
Claims (8)
1. peripheral nerve block indwelling trocar, sleeve pipe by a nook closing member and a hollow constitutes, described nook closing member is arranged in the described sleeve pipe, it is characterized in that: the front end of described nook closing member is provided with needle point, described needle point extends described telescopic front end face, the sidewall of telescopic leading section is provided with at least one side opening, telescopic tail end is set with a connection tube, the internal diameter of described connection tube is greater than telescopic internal diameter, the central axis of connection tube overlaps with the extended line of sleeve pipe central axis, be provided with a rubber plunger in the connection tube, nook closing member passes described rubber plunger, and the tail end of nook closing member is set with holds the hands wing, describedly holds the outside that the hands wing is positioned at connection tube, the connection tube sidewall in rubber plunger the place ahead is provided with a side pipe, and described side pipe is communicated with connection tube.
2. peripheral nerve block indwelling trocar as claimed in claim 1 is characterized in that: be provided with an X-ray shielding line in the described telescopic inwall, described X-ray shielding line is parallel with the sleeve pipe central axis.
3. peripheral nerve block indwelling trocar as claimed in claim 1 is characterized in that: an end of described side pipe is connected with a conduit, and an end of described conduit is connected with a sleeve.
4. peripheral nerve block indwelling trocar as claimed in claim 3 is characterized in that: be connected with a syringe or analgesia pump or shutoff knob on the described sleeve.
5. peripheral nerve block indwelling trocar as claimed in claim 1 is characterized in that: described telescopic outer wall is provided with scale.
6. peripheral nerve block indwelling trocar as claimed in claim 1 is characterized in that: the axial angles that become 30 degree of the inclined-plane of described needle point and nook closing member.
7. peripheral nerve block indwelling trocar as claimed in claim 1, it is characterized in that: the tail end of described nook closing member passes the described hands wing of holding, the tail end of nook closing member is connected with a plastic beads, be connected with electric lead on the nook closing member of described plastic beads front end, an end of described electric lead is connected with a plug.
8. peripheral nerve block indwelling trocar as claimed in claim 7 is characterized in that: described plug is connected with the electrical socket of a peripheral nerve stimulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201520639U CN201239183Y (en) | 2008-08-15 | 2008-08-15 | Peripheral nerve block indwelling trocars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201520639U CN201239183Y (en) | 2008-08-15 | 2008-08-15 | Peripheral nerve block indwelling trocars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201239183Y true CN201239183Y (en) | 2009-05-20 |
Family
ID=40712469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201520639U Expired - Fee Related CN201239183Y (en) | 2008-08-15 | 2008-08-15 | Peripheral nerve block indwelling trocars |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201239183Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727961A (en) * | 2012-07-23 | 2012-10-17 | 上海市同济医院 | Nerve block indwelling catheter needle with resistance measuring device |
| CN105126206A (en) * | 2015-09-30 | 2015-12-09 | 张慧伟 | Nerve block puncture needle |
| 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 |
-
2008
- 2008-08-15 CN CNU2008201520639U patent/CN201239183Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727961A (en) * | 2012-07-23 | 2012-10-17 | 上海市同济医院 | Nerve block indwelling catheter needle with resistance measuring device |
| CN102727961B (en) * | 2012-07-23 | 2013-06-19 | 上海市同济医院 | Nerve block indwelling catheter needle with resistance measuring device |
| WO2014015648A1 (en) * | 2012-07-23 | 2014-01-30 | 上海市同济医院 | Nerve blocking indwelling catheter needle with resistance measurement device |
| CN105126206A (en) * | 2015-09-30 | 2015-12-09 | 张慧伟 | Nerve block puncture needle |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20130815 |