CN209018872U - A kind of positioning remaining needle for continuous peripheral blockade - Google Patents

Abstract

A kind of positioning remaining needle for continuous peripheral blockade, belongs to medical instruments field, is made of Y type remaining needle and nerve positioning needle；Y type remaining needle includes needle stand and the indwelling hose and injection catheter drawn respectively along needle stand bottom surface and side；Nerve positioning needle includes the needle body for being inserted into indwelling hose inner cavity, and needle body is mounted on the needle handle that can be fastened with needle stand, and needle handle tail end draws the conducting wire for connecting needle body and nerve stimulation instrument；Needle body is made of conductive material, and indwelling hose, which is adopted, to be made from an insulative material, and the tip of needle body extends exposing to the outside of indwelling hose.The anode electrode slice of nerve stimulation instrument is connect with patient's Ipsilateral limb when use, nerve stimulation instrument output end connects the needle body of nerve positioning needle by conducting wire, and the anatomical position for blocking peripheral nerve as needed, which determines, punctures entry point.The utility model is cheap, anaesthetizes accurate positioning, Postoperative Analgesia After is convenient and reliable, few intercurrent disease, hence it is evident that improves quality of anesthesia and safety.

Description

A kind of positioning remaining needle for continuous peripheral blockade

Technical field

The utility model belongs to medical instruments field, and in particular to a kind of positioning indwelling for continuous peripheral blockade Needle.

Background technique

The anesthesia of peripheral blockade have it is easy to operate, topical pain relief effect is perfect, patient's Consciousness, to complete Figure rings the advantages that smaller, so being widely applied in upper and lower extremities operation.But traditional peripheral blockade Operation uses blind spy puncture method, and this method does not have objective indicator, can only be positioned, be easy to damage by finding paresthesia repeatedly The blood vessel and nerve of surrounding, there are certain anesthetic risks, it usually needs could be completed by veteran anesthetist.

Recently as the fast development of medical device, peripheral nerve stimulation instrument obtains universal answer in clinical anesthesia With its working principle is that nerve block puncture can not only be increased using the dry contraction of muscle that causes of electrical stimulation as objective indicator Accuracy, improve the success rate and safety of puncture, and can be avoided and cause to damage to the blood vessel of surrounding, greatly improve The safety of anesthesia.But used nerve stimulation needle can only implement single retardance, once daily at present, and cannot use In Postoperative Analgesia After, operation longer for the time cannot apply this anesthesia, and use scope is restricted.

Utility model content

The purpose of this utility model is that being directed to above-mentioned the problems of the prior art, provide a kind of for continuous peripheral nerve The positioning remaining needle of retardance can be applied in operation for a long time, and postoperative analgesia is obvious, expands peripheral nerve The application range of block anesthesia method, adverse reaction caused by reducing because of systemic vein analgesia, improves the comfort level of patient.

To achieve the goals above, the technical solution adopted in the utility model are as follows: by Y type remaining needle and nerve positioning needle two A component is constituted；The Y type remaining needle includes needle stand and the indwelling hose and note drawn respectively along needle stand bottom surface and side Fluid catheter；The nerve positioning needle includes the needle body for being inserted into indwelling hose inner cavity, and needle body, which is mounted on, to be buckled with needle stand On the needle handle of conjunction, needle handle tail end draws the conducting wire for connecting needle body and nerve stimulation instrument；The needle body uses conductive material It is made, indwelling hose, which is adopted, to be made from an insulative material, and the tip of needle body extends exposing to the outside of indwelling hose.

Length mark is carved on the needle body of the nerve positioning needle.

The indwelling hose is made of polyethylene insulation material, and needle body is made of conductive metal material.

Closing cock is equipped in the needle stand of the Y type remaining needle, needle body passes through the inner cavity of closing cock insertion indwelling hose.

Fluid injection switch folder is installed on the injection catheter.

The injection catheter end has been equipped with the calparine cap of sealing process.

The end of the conducting wire is equipped with the input plug for connecting nerve stimulation instrument delivery outlet.

The length of the indwelling hose is equal with needle body, and the length of the two is 40cm~50cm.

The tip of the needle body extends to the external of indwelling hose and exposes 2mm.

Compared with prior art, the utility model is with following the utility model has the advantages that by the anode of nerve stimulation instrument when using It being connect with electrode slice with patient's Ipsilateral limb, nerve stimulation instrument output end connects the needle body of nerve positioning needle by conducting wire, according to The anatomical position for needing to block peripheral nerve, which determines, punctures entry point, and starting setting up stimulated current is 1.5mA, when the close mind of needle point Through it is dry when, cause dominated muscle Rythmic contractions characteristic, when stimulated current is reduced to 0.5mA, still have contraction of muscle, explanation is worn Pierce accurate positioning.The needle stand of Y type remaining needle is fixed at this time, extracts the needle body of nerve positioning needle, and is connected to needle stand front end Indwelling hose is still within around nerve cord, and the needle stand of fixed Y type remaining needle is simultaneously infused local anesthetic by injection catheter It injects, this completes a nerve block anesthesias.It, can be repeatedly or lasting according to operating time length in anaesthesia process It is transfused local anesthetic, meets operation and requires, guarantees that anaesthesia process safety, definite effect are reliable.It will be postoperative after operation Analgesia pump is connected to injection catheter end, and the various parameters for setting analgesia pump can carry out effective Postoperative Analgesia After, this town Pain mode is not only able to reduce the dosage of opioid drug, reduces the incidence of the systemic adverse reactions such as nausea and vomiting, also It can prevent from causing vasopasm because of pain, increase the blood flow of extremity vascular, especially to amputation by blocking sympathetic nerve Operation and row extremity vascular anastomosis operation are replanted, the success rate of operation can be significantly improved.The utility model it is cheap, Accurate positioning is anaesthetized, Postoperative Analgesia After is convenient and reliable, and complication is less, hence it is evident that improves quality of anesthesia and safety, improves trouble Person's perioperative comfort level, the utility model is easy to operate, is easy to grasp, easy to use, has very high practical value and popularization Value.

Further, it is carved with length mark on the needle body of the utility model nerve positioning needle, for puncturing in nerve block When observe the depth of inserting needle, fluid injection switch folder is installed, injection catheter end has been equipped with the liver of sealing process on injection catheter Plain cap closes fluid injection switch folder when fluid injection, removes calparine cap, opens fluid injection switch again after the end connection syringe of injection catheter Folder turns off fluid injection switch folder, removes syringe, then screw on heparin in the end of injection catheter to inject drug after injection Cap.

Detailed description of the invention

Fig. 1 the utility model Y type containing needle structure schematic diagram；

Fig. 2 the utility model nerve positioning needle construction schematic diagram；

Fig. 3 the utility model overall structure diagram；

In attached drawing: 1- needle stand；2- closing cock；3- indwelling hose；4- injection catheter；5- fluid injection switch folder；6- calparine cap；7- Needle body；8- needle handle；9- conducting wire；10- input plug.

Specific embodiment

The following describes the utility model in further detail with reference to the accompanying drawings.

Referring to Fig. 1-3, the utility model is made of two components of Y type remaining needle and nerve positioning needle.Y type remaining needle includes Needle stand 1 and the indwelling hose 3 and injection catheter 4 drawn respectively along 1 bottom surface of needle stand and side are equipped with note along injection catheter 4 Liquid switch folder 5,4 end of injection catheter has been equipped with the calparine cap 6 of sealing process.Nerve positioning needle is soft including being inserted into indwelling The needle body 7 of 3 inner cavity of pipe, closing cock 2 is equipped in the needle stand 1 of Y type remaining needle, and needle body 7 passes through closing cock 2 and is inserted into indwelling hose 3 Inner cavity.Length mark is carved on needle body 7.Needle body 7 is mounted on the needle handle 8 that can be fastened with needle stand 1, and 8 tail end of needle handle, which is drawn, to be used In the conducting wire 9 of connection needle body 7 and nerve stimulation instrument, the end of conducting wire 9 is equipped with for connecting the defeated of nerve stimulation instrument delivery outlet Enter plug 10.Indwelling hose 3 is made of polyethylene insulation material, and needle body 7 is made of conductive metal material.Indwelling hose 3 It adopts and is made from an insulative material, and the tip of needle body 7 extends exposing to the outside of indwelling hose 3.

The length of indwelling hose 3 is equal with needle body 7, and the length of the two is 40cm~50cm.By adjusting neurodine The length of position needle body 7 and indwelling hose 3 designs the peripheral blockade positioning remaining needle of different model.

When the utility model is used, nerve stimulation instrument anode electrode slice is connect with patient's Ipsilateral limb, cathode ( It is exactly nerve stimulation instrument output end) it is connect with the 9 end output plug of conducting wire of periphery retardance positioning remaining needle, block as needed The anatomical position of peripheral nerve, which determines, punctures entry point, and starting setting up stimulated current is 1.5mA, when needle point is close to nerve cord, It can cause dominated muscle Rythmic contractions characteristic；When stimulated current is reduced to 0.5mA, still there is contraction of muscle, it is fixed to illustrate to puncture Level is true.The needle stand 1 for fixing Y type remaining needle at this time extracts the needle body 7 of nerve positioning needle by the closing cock 2 of elastomeric flexible, And the indwelling hose 3 for being connected to 1 front end of needle stand is still placed in around nerve cord, properly fixes Y type remaining needle with infusion pad pasting Needle stand 1 is entered local anesthetic injection by injection catheter, and this completes a nerve block anesthesias.It anaesthetized According to operating time length in journey, repeatedly or continuous infusion local anesthetic it can satisfy operation completely and require, guarantee Anaesthesia process safety, definite effect are reliable.Postoperative Analgesia After can be pumped after terminating and be connected to 4 end of injection catheter by operation, if The various parameters of analgesia pump are set, so that it may carry out effective Postoperative Analgesia After, this Mode of analgesia can not only reduce opiates The dosage of drug reduces the incidence of the systemic adverse reactions such as nausea and vomiting, can also be prevented by blocking sympathetic nerve Because pain causes vasopasm, increase the blood flow of extremity vascular, especially replantation of a severed limb operation and row extremity vascular are kissed The operation of conjunction can significantly improve the success rate of operation.The utility model it is cheap, anaesthetize accurate positioning, work well, Postoperative Analgesia After is convenient and reliable, and complication is less, can significantly improve quality of anesthesia and safety, it is comfortable to improve patients undergoing Degree.

The utility model is connected under the premise of not influencing nerve block accuracy using low dose of, low concentration and gradation The method of continuous administration avoids single retardance and injects the drug-induced toxic reaction of large dosage of local anaesthesia, is able to solve operating time Long problem；Peripheral nerve Postoperative Analgesia After is able to carry out by indwelling hose 3 simultaneously, and this nerve stimulation positions remaining needle It is cheap, accurate positioning is anaesthetized, analgesic effect is reliable, few intercurrent disease, easy to operate, easy to use, application easy to spread.

Claims (9)

1. a kind of positioning remaining needle for continuous peripheral blockade, it is characterised in that: by Y type remaining needle and nerve positioning needle Two components are constituted；The Y type remaining needle includes needle stand (1) and the indwelling drawn respectively along needle stand (1) bottom surface and side Hose (3) and injection catheter (4)；The nerve positioning needle includes the needle body (7) for being inserted into indwelling hose (3) inner cavity, needle Body (7) is mounted on the needle handle (8) that can be fastened with needle stand (1), and needle handle (8) tail end is drawn for connecting needle body (7) and nerve The conducting wire (9) of stimulation instrument；The needle body (7) is made of conductive material, and indwelling hose (3), which is adopted, to be made from an insulative material, and The tip of needle body (7) extends the outside exposed to indwelling hose (3).

2. being used for the positioning remaining needle of continuous peripheral blockade according to claim 1, it is characterised in that: the neurodine Length mark is carved on the needle body (7) of position needle.

3. being used for the positioning remaining needle of continuous peripheral blockade according to claim 1, it is characterised in that: the indwelling Hose (3) is made of polyethylene insulation material, and needle body (7) is made of conductive metal material.

4. being used for the positioning remaining needle of continuous peripheral blockade according to claim 1, it is characterised in that: the Y type stays It sets in the needle stand (1) of needle and is equipped with closing cock (2), needle body (7) passes through the inner cavity of closing cock (2) insertion indwelling hose (3).

5. being used for the positioning remaining needle of continuous peripheral blockade according to claim 1, it is characterised in that: the fluid injection Fluid injection switch folder (5) is installed on conduit (4).

6. being used for the positioning remaining needle of continuous peripheral blockade according to claim 1, it is characterised in that: the fluid injection Conduit (4) end has been equipped with the calparine cap (6) of sealing process.

7. being used for the positioning remaining needle of continuous peripheral blockade according to claim 1, it is characterised in that: the conducting wire (9) end is equipped with the input plug (10) for connecting nerve stimulation instrument delivery outlet.

8. being used for the positioning remaining needle of continuous peripheral blockade according to claim 1, it is characterised in that: the indwelling is soft The length for managing (3) is equal with needle body (7), and the length of the two is 40cm~50cm.

9. being used for the positioning remaining needle of continuous peripheral blockade according to claim 1, it is characterised in that: the needle body (7) tip extends to the external of indwelling hose (3) and exposes 2mm.