Minimally invasive subarachnoid space anesthesia insertion guide needle

Abstract

The utility model discloses a minimally invasive subarachnoid space anesthesia interpenetration guide needle, which comprises a fixed cylinder and an interpenetration guide needle, the interpenetration guide needle is slidably connected in the fixed cylinder, a guide positioning component is arranged between the fixed cylinder and the interpenetration guide needle, a needle pushing handheld plate is arranged at the tail part of the peripheral surface of the fixed cylinder, and the needle pushing handheld plate is fixedly connected with the fixed cylinder. A guide needle positioning assembly is arranged at the front end of the peripheral face of the fixing cylinder, and a protection cylinder arranged outside the insertion guide needle in a sleeving mode is installed at the front end of the inner wall of the fixing cylinder. According to the insertion guide needle for minimally invasive subarachnoid space anesthesia, a protection plug, a clamping ring and the protection cylinder are arranged to be matched with a sealing ring, so that the insertion guide needle is conveniently protected; by arranging a pushing ring frame, a guide channel and a fixing cylinder to be matched with a positioning bolt and a dial gauge, the needle inserting depth can be observed conveniently, meanwhile, the extending length of the inserting guide needle can be fixed conveniently, and by arranging disposable isolation paper, a fixing belt and a fixing ring, the inserting guide needle can be fixed conveniently after being punctured into a human body.

Description

TECHNICAL FIELD

[0001] The utility model relates to puncture instrument technical field, concretely is a kind of minimally invasive subarachnoid anesthesia puncture guiding needle. BACKGROUND

[0002] Subarachnoid block anesthesia is the clinical common anesthesia mode, and the method for injecting anesthetic into subarachnoid space, acting on spinal nerve root and making corresponding part produce anesthetic effect, subarachnoid block anesthesia process needs to use puncture guiding needle, anesthetic needle with hollow structure is inserted into subarachnoid space, and anesthetic is injected into body by anesthetic needle, so as to complete puncture anesthesia, the existing minimally invasive subarachnoid anesthesia puncture guiding needle is exposed in external environment when using, not only there is the risk of hurting others, but also there is the risk of being contaminated, guiding needle needs to be kept stable by medical staff after being pierced into human body, and then anesthetic is injected, not only consumes physical strength, but also guiding needle has the risk of moving. UTILITY MODEL CONTENT

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a minimally invasive subarachnoid anesthesia puncture guiding needle, avoid that guiding needle is exposed in external environment when using, eliminate safety hazard, facilitate positioning of guiding needle, prevent guiding needle from deviating, and effectively solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A minimally invasive subarachnoid anesthesia puncture guiding needle, including fixed cylinder and puncture guiding needle, the puncture guiding needle is slidably connected in fixed cylinder, and the fixed cylinder and the puncture guiding needle are provided with a guiding and positioning assembly, the tail part of the outer circumferential surface of the fixed cylinder is provided with a needle pushing hand plate, the front end of the outer circumferential surface of the fixed cylinder is provided with a guiding needle positioning assembly, the front end of the inner wall of the fixed cylinder is provided with a protective cylinder sleeved on the outside of the puncture guiding needle, the end of the outer circumferential surface of the protective cylinder is provided with a clamping ring matched with the inner wall of the fixed cylinder, the front end of the protective cylinder is connected with a protective plug, and the tail part of the inner wall of the fixed cylinder is provided with a sealing ring matched with the puncture guiding needle.

[0006] As a preferred technical scheme of the utility model, the guiding and positioning assembly includes a guiding channel formed in the circumferential surface of the fixed cylinder, the connecting block is slidably connected in the guiding channel and is fixedly connected with the puncture guiding needle, and the end of the connecting block is connected with a pushing ring frame slidably connected with the outer circumferential surface of the fixed cylinder.

[0007] As a preferred technical scheme of the utility model, the positioning bolt is installed in the threaded hole of the circumferential surface of the pushing ring frame.

[0008] As a preferred technical scheme of the utility model, the penetrating guide needle is provided with a detachable sealing strip in the inner cavity.

[0009] As a preferred technical scheme of the utility model, the guide needle positioning assembly comprises a fixing ring arranged at the front end of the outer circumferential surface of the fixing cylinder, the outer circumferential surface of the fixing ring is provided with a plurality of fixing bands, and the outer circumferential surface of the fixing ring is provided with a taking and placing groove.

[0010] As a preferred technical scheme of the utility model, the fixing band side is provided with a glue coating layer.

[0011] As a preferred technical scheme of the utility model, the outer circumferential surface of the fixing cylinder is provided with a scale.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The protective plug, the clamping ring and the protective cylinder cooperate with the sealing ring to facilitate the protection of the penetrating guide needle, the pushing ring frame, the guide channel and the fixing cylinder cooperate with the positioning bolt and the scale to facilitate the observation of the needle insertion depth, the disposable isolation paper, the fixing band and the fixing ring facilitate the fixation of the penetrating guide needle after the penetrating guide needle is inserted into the human body, the medical staff can inject anesthetic into the body, the sealing protrusion and the sealing strip facilitate the maintenance of vacuum when the penetrating guide needle is inserted into the human body, and the penetrating guide needle can avoid the exposure of the guide needle to the external environment, eliminate the security risks, facilitate the positioning of the guide needle and prevent the deviation of the guide needle. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the utility model.

[0015] Figure 2 It is a structure schematic view of another direction of the utility model.

[0016] Figure 3 It is a local section structure schematic view of the utility model.

[0017] Figure 4 It is a local section structure schematic view of the utility model in the penetrating guide needle use state.

[0018] In the drawing: the fixing cylinder 1, the pushing ring frame 2, the needle pushing hand plate 3, the sealing protrusion 4, the penetrating guide needle 5, the positioning bolt 6, the scale 7, the guide channel 8, the disposable isolation paper 9, the protective plug 10, the clamping ring 11, the fixing band 12, the fixing ring 13, the taking and placing groove 14, the connecting block 15, the sealing strip 16, the protective cylinder 17, the sealing ring 18. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] Please refer to Figures 1-4 The present application provides a technical solution:

[0021] The micro-invasive subarachnoid cavity anesthesia insertion guide needle comprises a fixed cylinder 1 and an insertion guide needle 5, the insertion guide needle 5 is slidably connected in the fixed cylinder 1, a guide positioning assembly is arranged between the fixed cylinder 1 and the insertion guide needle 5, a tail part of the outer periphery surface of the fixed cylinder 1 is provided with a needle pushing hand plate 3, a front end of the outer periphery surface of the fixed cylinder 1 is provided with a guide needle positioning assembly, a protection cylinder 17 sleeved outside the insertion guide needle 5 is mounted on the front end of the inner wall of the fixed cylinder 1, an end part of the outer periphery surface of the protection cylinder 17 is provided with a clamping ring 11 matched with the inner wall of the fixed cylinder 1, the front end of the protection cylinder 17 is connected with a protection plug 10, and the tail part of the inner wall of the fixed cylinder 1 is provided with a sealing ring 18 matched with the insertion guide needle 5.

[0022] The guide positioning assembly comprises a guide channel 8 arranged on the periphery surface of the fixed cylinder 1, a connecting block 15 fixedly connected with the insertion guide needle 5 is slidably connected in the guide channel 8, and an end part of the connecting block 15 is connected with a pushing ring frame 2 slidably connected with the outer periphery surface of the fixed cylinder 1.

[0023] A positioning bolt 6 is mounted in a threaded hole in the periphery surface of the pushing ring frame 2.

[0024] A detachable sealing strip 16 is mounted in the inner cavity of the insertion guide needle 5, and an end part of the sealing strip 16 is connected with a sealing protrusion 4.

[0025] The guide needle positioning assembly comprises a fixed ring 13 arranged on the front end of the outer periphery surface of the fixed cylinder 1, a plurality of fixed bands 12 are arranged on the outer periphery surface of the fixed ring 13, a taking and placing groove 14 is arranged on the outer periphery surface of the fixed ring 13, and the protection plug 10 can be conveniently pulled out outward through the taking and placing groove 14.

[0026] A disposable isolation paper 9 is arranged at a glue coating layer of the side surface of the fixed band 12, and the disposable isolation paper 9 is torn off during use.

[0027] A scale table 7 is arranged on the outer periphery surface of the fixed cylinder 1.

[0028] With the protection plug 10, the protection cylinder 17 is pulled out from the fixed cylinder 1, the doctor holds the fixed cylinder 1 and the needle pushing hand plate 3, then the front end of the fixed cylinder 1 is aimed at the position to be punctured, then the puncture guide needle 5 is pushed forward by pushing the ring frame 2 and the connecting block 15, the depth of the needle is observed through the scale table 7, after the needle is inserted, the puncture guide needle 5 is fixed through the positioning bolt 6, then the fixed cylinder 1 is fixed on the skin of the patient through the adhesive layer on the multiple fixing belts 12 on the circumference of the fixed ring 13, which plays a role of auxiliary fixing the puncture guide needle 5, before the anesthetic is pushed in by the syringe, the sealing strip 16 is pulled out from the puncture guide needle 5 by the sealing protrusion 4.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A minimally invasive subarachnoid block needle comprising a fixed barrel (1) and a block needle (5), characterized in that: The insertion guide needle (5) is slidingly connected in the fixed cylinder (1), a guide positioning assembly is arranged between the fixed cylinder (1) and the insertion guide needle (5), the tail part of the outer periphery of the fixed cylinder (1) is provided with a needle pushing hand plate (3), the front end of the outer periphery of the fixed cylinder (1) is provided with a guide needle positioning assembly, the front end of the inner wall of the fixed cylinder (1) is provided with a protective cylinder (17) sleeved outside the insertion guide needle (5), the end part of the outer periphery of the protective cylinder (17) is provided with a clamping ring (11) matched with the inner wall of the fixed cylinder (1), the front end of the protective cylinder (17) is connected with a protective plug (10), and the tail part of the inner wall of the fixed cylinder (1) is provided with a sealing ring (18) matched with the insertion guide needle (5).

2. The minimally invasive subarachnoid block needle of claim 1, wherein: The guide positioning assembly comprises a guide channel (8) formed in the periphery of the fixed cylinder (1), the guide channel (8) is slidingly connected with a connecting block (15) fixedly connected with the insertion guide needle (5), and the end part of the connecting block (15) is connected with a pushing ring frame (2) slidingly connected with the outer periphery of the fixed cylinder (1).

3. The minimally invasive subarachnoid block needle of claim 2, wherein: The positioning bolt (6) is installed in the threaded hole in the periphery of the pushing ring frame (2).

4. The minimally invasive subarachnoid block needle of claim 1, wherein: The insertion guide needle (5) is slidingly connected in the fixed cylinder (1), a guide positioning assembly is arranged between the fixed cylinder (1) and the insertion guide needle (5), the tail part of the outer periphery of the fixed cylinder (1) is provided with a needle pushing hand plate (3), the front end of the outer periphery of the fixed cylinder (1) is provided with a guide needle positioning assembly, the front end of the inner wall of the fixed cylinder (1) is provided with a protective cylinder (17) sleeved outside the insertion guide needle (5), the end part of the outer periphery of the protective cylinder (17) is provided with a clamping ring (11) matched with the inner wall of the fixed cylinder (1), the front end of the protective cylinder (17) is connected with a protective plug (10), and the tail part of the inner wall of the fixed cylinder (1) is provided with a sealing ring (18) matched with the insertion guide needle (5).

5. The minimally invasive subarachnoid block needle of claim 1, wherein: The guide needle positioning assembly comprises a fixed ring (13) arranged at the front end of the outer periphery of the fixed cylinder (1), a plurality of fixed bands (12) are arranged on the outer periphery of the fixed ring (13), and a taking and placing groove (14) is formed in the outer periphery of the fixed ring (13).

6. The minimally invasive subarachnoid block needle of claim 5, wherein: The disposable isolation paper (9) is arranged at the glue coating layer of the side surface of the fixed band (12).

7. The minimally invasive subarachnoid block needle of claim 1, wherein: The outer periphery of the fixed cylinder (1) is provided with a scale table (7).

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