CN210931728U

CN210931728U - Auxiliary needle inserting device for epidural anesthesia

Info

Publication number: CN210931728U
Application number: CN201921694521.6U
Authority: CN
Inventors: 王翠英
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-07-07
Anticipated expiration: 2029-10-11

Abstract

The utility model provides an epidural anesthesia auxiliary needle inserter. Epidural anesthesia assists needle feeder includes injection tube, cerebrospinal fluid observation mechanism, protection machanism and advancing mechanism, install sliding connection's piston in the injection tube, and the top fixed mounting of piston has the transparent push rod of cavity of perpendicular setting, the injection port fixed mounting of injection tube has the pjncture needle, cerebrospinal fluid observation mechanism installs in the injection tube, cerebrospinal fluid observation mechanism includes cavity needle core, flexible hose and cavity glass ball, the cavity needle core runs through the through-hole that piston centre of a circle department seted up and fixes the gomphosis in the piston, the top of cavity needle core extends to in the transparent push rod of cavity and communicates each other through flexible hose and cavity glass ball, and the bottom of cavity needle core extends to in the pjncture needle and the needle point department that is close to the pjncture needle. The utility model provides an epidural anesthesia auxiliary needle inserting device which has the advantage of improving the accuracy of needle insertion.

Description

Auxiliary needle inserting device for epidural anesthesia

Technical Field

The utility model relates to the technical field of medical treatment, especially, relate to an epidural anesthesia assists needle inserter.

Background

Epidural anesthesia refers to epidural space block anesthesia, i.e., local anesthetic is injected into the epidural space to block spinal nerve root and temporarily paralyze the innervated area, which is called epidural space block anesthesia, or epidural space block for short. Depending on the mode of administration, a single-dose method and a continuous method can be classified. The puncture position can be divided into high position, middle position, low position and sacral canal block.

At present, clinically when carrying out epidural anesthesia for the patient, generally disinfect for patient earlier, pierce the pjncture needle as required according to the corresponding angle range estimation of puncture position regulation again and pierce, then take out the nook closing member, introduce epidural catheter, extract the puncture needle body, fixed epidural catheter, and inject anesthesia liquid medicine anesthesia from epidural catheter, rely on doctor's work experience to carry out the puncture operation mostly, can not dexterous understanding impales the position, and grasp can influence anesthesia effect not well, medical staff's the work degree of difficulty has greatly increased.

Therefore, there is a need to provide an epidural anesthesia auxiliary needle inserter to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an epidural anesthesia auxiliary needle inserter with improved needle insertion accuracy.

The utility model provides an epidural anesthesia assists needle inserter includes: the injection tube is internally provided with a piston in sliding connection, the top of the piston is fixedly provided with a vertically arranged hollow transparent push rod, and an injection port of the injection tube is fixedly provided with a puncture needle; the cerebrospinal fluid observation mechanism is arranged in the injection tube and comprises a hollow needle core, an elastic hose and a hollow glass ball, the hollow needle core penetrates through a through hole formed in the center of the piston and is fixedly embedded in the piston, the top of the hollow needle core extends into the hollow transparent push rod and is communicated with the hollow glass ball through the elastic hose, and the bottom of the hollow needle core extends into the puncture needle and is close to the needle point of the puncture needle; the protection mechanism is arranged on the injection tube and is used for protecting the puncture needle; and the propelling mechanism is arranged on the hollow transparent push rod.

Preferably, the protection machanism includes elastic protection cover, sucking disc, mounting panel, gag lever post, limiting plate, the fixed cover of one end of elastic protection cover connects in the injection port department of injection tube, and elastic protection cover's bottom fixedly connected with open-top's sucking disc, the lateral wall fixed mounting of sucking disc has the mounting panel that the level set up, limiting plate fixed mounting is on the lateral wall that the injection tube is close to the bottom, the last fixed surface of mounting panel installs the gag lever post of perpendicular setting, and the gag lever post passes the through-hole that the limiting plate was seted up and fixed cover has connect the anti-skidding cap.

Preferably, the protection mechanism further comprises a threaded fixing rod, and the threaded fixing rod is inserted into a threaded through hole formed in the side wall of the limiting plate and is in threaded connection with the threaded through hole.

Preferably, the propulsion mechanism comprises a connecting rod and a pull ring, one end of the connecting rod is fixedly connected with the top of the hollow transparent push rod, and the pull ring is fixedly mounted at the other end of the connecting rod.

Preferably, an auxiliary sleeve is fixedly mounted at the top of the injection cylinder.

Preferably, a protective rubber sleeve is fixedly embedded on the outer side wall of the injection cylinder.

Compared with the prior art, the utility model provides an epidural anesthesia assists needle inserter has following beneficial effect:

the utility model provides a needle ware is assisted in epidural anesthesia, medical personnel pierce the pjncture needle through holding the injection tube and pierce patient's waist in, after the pjncture needle pierces patient's dura mater department, the cerebrospinal fluid enters into in the cavity glass ball through cavity nook closing member under the effect of negative pressure, medical personnel can stop the needle insertion after having the cerebrospinal fluid in observing the cavity glass ball, medical personnel's accurate nature of inserting the needle has been improved, the pjncture needle inserts the back that finishes, screw up the screw thread dead lever and make the gag lever post fix and avoided follow-up medical personnel to lead to the phenomenon that the puncture needle pricked deeply or returned because of the hand mistake in the limiting plate.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of an epidural anesthesia auxiliary needle inserter provided by the utility model;

fig. 2 is a schematic cross-sectional view of the structure shown in fig. 1.

Reference numbers in the figures: 1. injection tube, 2, piston, 3, hollow transparent push rod, 4, pjncture needle, 5, cerebrospinal fluid observation mechanism, 51, hollow nook closing member, 52, elastic hose, 53, hollow glass ball, 6, protection mechanism, 61, elastic protective cover, 62, sucking disc, 63, mounting panel, 64, gag lever post, 65, limiting plate, 66, thread tightening lever, 7, advancing mechanism, 71, connecting rod, 72, pull ring, 8, protection rubber sleeve, 9, auxiliary sleeve.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1 and fig. 2 in combination, wherein fig. 1 is a schematic structural view of a needle inserter for assisting epidural anesthesia according to a preferred embodiment of the present invention; fig. 2 is a schematic cross-sectional view of the structure shown in fig. 1. The epidural anesthesia auxiliary needle inserting device comprises: injection tube 1, cerebrospinal fluid observation mechanism 5, protection machanism 6 and advancing mechanism 7, install sliding connection's piston 2 in the injection tube 1, and the top fixed mounting of piston 2 has the transparent push rod of cavity 3 of perpendicular setting, the injection port fixed mounting of injection tube 1 has pjncture needle 4.

In a specific implementation process, as shown in fig. 1 and 2, the cerebrospinal fluid observation mechanism 5 is installed in the injection tube 1, the cerebrospinal fluid observation mechanism 5 includes a hollow stylet 51, an elastic hose 52 and a hollow glass ball 53, the hollow stylet 51 penetrates through a through hole formed in a circle center of the piston 2 and is fixedly embedded in the piston 2, a top of the hollow stylet 51 extends into the hollow transparent push rod 3 and is communicated with the hollow glass ball 53 through the elastic hose 52, and a bottom of the hollow stylet 51 extends into the puncture needle 4 and is close to a needle tip of the puncture needle 4.

It should be noted that: medical personnel pierce patient's waist with pjncture needle 4 through holding injection tube 1 in, after pjncture needle 4 pierced patient's dura mater department, the cerebrospinal fluid enters into cavity glass ball 53 through cavity nook closing member 51 under the effect of negative pressure in, medical personnel can stop the needle insertion after having the cerebrospinal fluid in observing cavity glass ball 53, have improved medical personnel's accurate nature of needle insertion.

Referring to fig. 1, the shielding mechanism 6 is mounted to the syringe barrel 1 and is used to shield the puncture needle 4, the protection mechanism 6 comprises an elastic protection sleeve 61, a suction disc 62, a mounting plate 63, a limiting rod 64 and a limiting plate 65, one end of the elastic protection sleeve 61 is fixedly sleeved at the injection port of the injection tube 1, and the bottom of the elastic protective sleeve 61 is fixedly connected with a sucker 62 with an opening at the top, the side wall of the sucker 62 is fixedly provided with a horizontally arranged mounting plate 63, the limit plate 65 is fixedly arranged on the side wall of the injection tube 1 close to the bottom, the upper surface of the mounting plate 63 is fixedly provided with a vertically arranged limit rod 64, and the limit rod 64 passes through a through hole formed in the limit plate 65 and is fixedly sleeved with an anti-slip cap, the protection mechanism 6 further comprises a threaded fixing rod 66, the threaded fixing rod 66 is inserted into a threaded through hole formed in the side wall of the limiting plate 65 and is in threaded connection with the threaded through hole.

It should be noted that: when the needle inserter is not used, the limiting rod 64 is slid downwards to enable the elastic protection sleeve 61 to completely cover the puncture needle 4, so that the cleanness of the puncture needle 4 is effectively protected, the threaded fixing rod 66 is screwed down to enable the limiting rod 64 to be fixed in the limiting plate 65, and the phenomenon that the elastic protection sleeve 61 jumps is avoided; when the needle inserting device is used, the thread fixing rod 66 is unscrewed, the sucking disc 62 is adsorbed at the puncture position of a patient, the elastic protection sleeve 61 starts to shrink when the puncture needle 4 is inserted, and after the insertion of the puncture needle 4 is completed, the thread fixing rod 66 is screwed down to enable the limiting rod 64 to be fixed in the limiting plate 65, so that the phenomenon that the puncture needle 4 is deeply punctured or retreats due to the fact that a hand of a follow-up medical worker is mistaken is avoided.

Referring to fig. 1, the pushing mechanism 7 is installed on the hollow transparent push rod 3, the pushing mechanism 7 includes a connecting rod 71 and a pull ring 72, one end of the connecting rod 71 is fixedly connected with the top of the hollow transparent push rod 3, and the other end of the connecting rod 71 is fixedly installed with the pull ring 72, so that the medical staff can pull the pull ring 72 to make the hollow transparent push rod 3 push the piston 2.

The top of the injection tube 1 is fixedly provided with an auxiliary sleeve 9, and the outer side wall of the injection tube 1 is fixedly embedded with a protective rubber sleeve 8, so that the protection of the injection tube 1 is improved.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. An epidural anesthesia auxiliary needle inserter, characterized by comprising:

the injection device comprises an injection tube (1), wherein a piston (2) in sliding connection is installed in the injection tube (1), a vertically arranged hollow transparent push rod (3) is fixedly installed at the top of the piston (2), and a puncture needle (4) is fixedly installed at an injection port of the injection tube (1);

the cerebrospinal fluid observation mechanism (5) is installed in the injection tube (1), the cerebrospinal fluid observation mechanism (5) comprises a hollow needle core (51), an elastic hose (52) and a hollow glass ball (53), the hollow needle core (51) penetrates through a through hole formed in the circle center of the piston (2) and is fixedly embedded in the piston (2), the top of the hollow needle core (51) extends into the hollow transparent push rod (3) and is communicated with the hollow glass ball (53) through the elastic hose (52), and the bottom of the hollow needle core (51) extends into the puncture needle (4) and is close to the needle point of the puncture needle (4);

the protective mechanism (6) is arranged on the injection cylinder (1) and is used for protecting the puncture needle (4);

the propelling mechanism (7), the propelling mechanism (7) is installed on the hollow transparent push rod (3).

2. The epidural anesthesia auxiliary needle inserter according to claim 1, wherein the protective mechanism (6) comprises an elastic protective sleeve (61), a suction cup (62), a mounting plate (63), a limiting rod (64) and a limiting plate (65), one end of the elastic protective sleeve (61) is fixedly sleeved at the injection port of the injection tube (1), the bottom of the elastic protective sleeve (61) is fixedly connected with the suction cup (62) with an open top, the horizontally arranged mounting plate (63) is fixedly mounted on the side wall of the suction cup (62), the limiting plate (65) is fixedly mounted on the side wall of the injection tube (1) close to the bottom, the vertically arranged limiting rod (64) is fixedly mounted on the upper surface of the mounting plate (63), and the limiting rod (64) passes through a through hole formed in the limiting plate (65) and is fixedly sleeved with an anti-slip cap.

3. The epidural anesthesia auxiliary needle inserter according to claim 1, characterized in that the protection mechanism (6) further comprises a threaded fixing rod (66), and the threaded fixing rod (66) is inserted into and in threaded connection with a threaded through hole formed in the side wall of the limiting plate (65).

4. The epidural anesthesia auxiliary needle inserter according to the claim 1, characterized in that the pushing mechanism (7) comprises a connecting rod (71) and a pull ring (72), one end of the connecting rod (71) is fixedly connected with the top of the hollow transparent push rod (3), and the other end of the connecting rod (71) is fixedly mounted with the pull ring (72).

5. The epidural anesthesia auxiliary needle inserter according to claim 1, characterized in that the top of the syringe (1) is fixedly mounted with an auxiliary cannula (9).

6. The epidural anesthesia auxiliary needle inserter according to the claim 1, characterized in that the outside wall of the syringe (1) is fixedly embedded with a protective rubber sleeve (8).