CN201987634U

CN201987634U - Epidural puncture needle convenient for perception

Info

Publication number: CN201987634U
Application number: CN2011200300633U
Authority: CN
Inventors: 张咸伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-28
Filing date: 2011-01-28
Publication date: 2011-09-28
Anticipated expiration: 2021-01-28

Abstract

The utility model relates to an epidural puncture needle convenient for perception, which comprises an epidural needle tube (1), wherein an opening at the tail end of a needle stand (3) of the epidural needle tube (1) is cylindrical, an L-shaped clamping groove is formed outside the cylindrical wall, a needle core (5) of a needle core component (4) penetrates the needle stand (3), and the handle end of the needle core component (4) is connected with the tail end of the needle stand (3); and the epidural puncture needle is characterized in that an epidural space identification tube (2) is arranged near to the needle stand (3) of the epidural needle tube (1), an inner opening of the epidural space identification tube (2) is communicated with an inner cavity of the epidural needle tube (1), and an outer opening of the epidural space identification tube (2) is cylindrical. The epidural puncture needle has the advantages that the changes in hand feeling (breakthrough feeling) and vision (negative pressure) can be considered at the same time, so that the negative pressure is observed more conveniently; a sealing structure is arranged at the tail end of the needle stand, and the operator working point is increased at the tail end, so that the controllability in operation from a less experienced doctor and the convenience and comfortableness in operation from an experienced doctor are enhanced, and the probability of epidural puncture is reduced; and under the combined use of the epidural space identification tube and the plugging column, the times of alternately using the needle core and the syringe is reduced, the needle core is pulled out after the determination of successful puncture, and the operating efficiency is further improved.

Description

Be convenient to the anesthesia spinal needle of perception

Technical field

This utility model relates to technical field of medical instruments, a kind of specifically anesthesia spinal needle of being convenient to perception.

Background technology

The epidural puncture technology is still a kind of cognition technology through the development of decades, promptly judges and confirm the position of anesthesia spinal needle by operator's feel (breaking through sense, resistance disappearance method etc.) and vision (negative pressure disappearance, liquid sessile drop method etc.).But under the existing equipment device condition, be difficult to take into account simultaneously two kinds of sensations usually.Concrete limitation is as follows:

1. both hands are held the pin operation, or can not observe epidural negative pressure (operation of band nook closing member) simultaneously, or sacrificing security (be not with the nook closing member operation, fragment of tissue might enter needle tubing, is brought into epidural space by external force such as conduits);

2. hand-held pin one a hand-held syringe pressurization, then strength, direction control are poor, especially for new hand, have a strong impact on feel, have both increased and have damaged chance (wearing out spinal dura mater), increase the operating time again;

3. higher level doctor usually can't be difficult to timely guidance in the definite appearance of observing negative pressure of the very first time;

4. even there is negative pressure such as low-resistance syringe to show measure, also just just extract nook closing member during near epidural at " sensation " needle point, observe negative pressure by devices such as syringes, it is consuming time firmly inconvenient to remain operation.

Summary of the invention

Thereby the purpose of this utility model is to design a kind of anesthesia spinal needle of being convenient to perception (taking into account " feel " and " vision ") that can observe epidural negative pressure variation and resistance disappearance raising operation controllability, convenience and comfortableness rapidly synchronously.

This utility model is convenient to the anesthesia spinal needle of perception, comprise: epidural needle tubing 1, the needle stand 3 of epidural needle tubing 1 offers epidural space nearby and determines pipe 2, epidural space determines that the internal orifice of pipe 2 communicates with the inner chamber of epidural needle tubing 1, and epidural space determines that the collar extension of pipe 2 is cylindric low-resistance syringe or other pressure tester of connecing; The tail end opening of the needle stand 3 of epidural needle tubing 1 is cylindric, and cylindrical wall is outside equipped with L shaped draw-in groove, and the nook closing member 5 of nook closing member assembly 4 passes needle stand 3, the handle end of nook closing member assembly 4 and 3 terminal linking to each other of needle stand.

Described nook closing member assembly 4 comprises: nook closing member 5 and handle end, be provided with shutoff post 8 in the described handle end, and the handle inboard is provided with spot-like projections 9.

Described L shaped draw-in groove is a prior art L shaped groove commonly used, and spot-like projections 9 places in the chute, is along the longitudinal movement to the bottom, laterally rotates to the cecum of L shaped groove again.

The anesthesia spinal needle that this utility model is convenient to perception is achieved in that nook closing member 5 insertion epidural needle tubings 1, shutoff post 8 closely is connected with the tail end opening of needle stand 3, point-like projection 9 corresponding L type water jackets 7, rotate fastening, the epidural backshank is airtight, and epidural space is determined pipe 2 and epidural needle tubing 1 unique communicating; Epidural space determines that pipe 2 connects low-resistance syringe or other pressure tester; In the epidural puncture process, the tail end that available one hand or both hands are held the handle of needle stand 3 and nook closing member 5 inserting needle of exerting pressure easily, when the epidural needle tip enters epidural space, follow resistance to disappear, determine that with epidural space pipe 2 low-resistance syringes that link to each other or pressure tester can be subjected to displacement or indicate because of negative pressure, thereby determine the position at epidural needle tip fast.

The advantage that this utility model is convenient to the anesthesia spinal needle of perception is: can take into account feel (breaking through sense) and vision (negative pressure) simultaneously and change, the observation negative pressure is more convenient; The needle stand tail end is a hermetically-sealed construction, has increased operator's impetus at tail end, has improved the controllability of neophyty operation and convenience, the comfortableness of veteran's operation thus, has reduced and has worn out spinal dural probability; Epidural space is determined the use of uniting of pipe and shutoff post, has reduced the alternative number of times of nook closing member and syringe, after determining to puncture successfully, extracts nook closing member and can put pipe, has improved operating efficiency.

Description of drawings

Fig. 1 is for ease of the structural representation of the anesthesia spinal needle of perception.

Fig. 2 is the structural representation of epidural needle tubing and nook closing member components apart.

The specific embodiment

According to Fig. 1, shown in Figure 2, a kind of anesthesia spinal needle of being convenient to perception, comprise: epidural needle tubing 1, the needle stand 3 of epidural needle tubing 1 offers epidural space nearby and determines pipe 2, epidural space determines that the internal orifice of pipe 2 communicates with the inner chamber of epidural needle tubing 1, and epidural space determines that the collar extension of pipe 2 is cylindric low-resistance syringe or other pressure tester of connecing; The tail end opening of the needle stand 3 of epidural needle tubing 1 is cylindric, and cylindrical wall is outside equipped with L shaped draw-in groove, and the nook closing member 5 of nook closing member assembly 4 passes needle stand 3, the handle end of nook closing member assembly 4 and 3 terminal linking to each other of needle stand.

Claims

1. be convenient to the anesthesia spinal needle of perception, comprise: epidural needle tubing ⑴, the tail end opening of the needle stand ⑶ of epidural needle tubing ⑴ is cylindric, and cylindrical wall is outside equipped with L shaped draw-in groove, the nook closing member ⑸ of nook closing member assembly ⑷ passes needle stand ⑶, and the handle end of nook closing member assembly ⑷ links to each other with needle stand ⑶ is terminal; It is characterized in that: the needle stand ⑶ of described epidural needle tubing ⑴ offers epidural space nearby and determines pipe ⑵, and epidural space determines that the internal orifice of pipe ⑵ communicates with the inner chamber of epidural needle tubing ⑴, and epidural space determines that the collar extension of pipe ⑵ is cylindric.

2. the anesthesia spinal needle of being convenient to perception according to claim 1 is characterized in that: described nook closing member assembly ⑷ comprises: nook closing member ⑸ and handle end, be provided with shutoff post ⑻ in the described handle end, and the handle inboard is provided with spot-like projections ⑼.