CN211704773U

CN211704773U - Neurology artery trocar

Info

Publication number: CN211704773U
Application number: CN201920177351.8U
Authority: CN
Inventors: 杨昌军; 汪紫嫣
Original assignee: Sinan People's Hospital
Current assignee: Sinan People's Hospital
Priority date: 2019-01-26
Filing date: 2019-01-26
Publication date: 2020-10-20
Anticipated expiration: 2029-01-26

Abstract

The utility model discloses an artery trocar for neurology, which comprises an upper sleeve, wherein a threaded through groove is vertically arranged at the center of the top of the upper sleeve, and a protective conduit is arranged in the threaded through groove, a guide wire is arranged in the inner cavity of the protective conduit, a diamond-shaped groove is arranged at the center of the bottom of the upper sleeve, the rhombic groove is communicated with the threaded through groove, a needle core seat is arranged in the rhombic groove, the bottom of the needle core seat is connected with a puncture needle, a liquid outlet is arranged on one side of the upper end of the puncture needle, a lower sleeve is arranged below the upper sleeve, a limiting groove is arranged at the center of the top of the lower sleeve, an accommodating cavity is arranged below the limiting groove, a fixed wing is arranged on the outer side of the upper end of the lower sleeve, the left side and the right side of the middle end of the lower sleeve are respectively provided with a pressure measuring device and an infusion device, the bottom end of the lower sleeve is provided with a fastening end cover, and a remaining needle tube is arranged in the fastening end cover, and a depth control plate is arranged on the rear side wall of the lower sleeve. The utility model relates to a novelty, it is rational in infrastructure, easy operation, excellent in use effect.

Description

Neurology artery trocar

Technical Field

The utility model relates to a department of neurology technical field, in particular to department of neurology artery trocar.

Background

At present, with the development of medical technology, the trocar has been widely applied to the clinical aspect of department of neurology, the trocar on the market generally divide into pjncture needle and keeps somewhere needle two parts, when the trocar uses, generally after pjncture needle is pulled out, leave and keep somewhere the needle, rethread keeps somewhere needle one side and pierces into the guide wire, at present, this technique of pipe is put in the puncture mainly relies on operator's feel and clinical experience, to the student who just gets into clinical practice, it is very big challenge, can't confirm oneself insert artery or vein, it is especially difficult to judge, use the trocar troublesome relatively at present simultaneously, can't satisfy daily user demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an artery trocar for neurology aiming at the defects of the prior art.

In order to solve the above problem, the utility model provides a following technical scheme: the utility model provides an artery trocar for department of neurology, includes the upper casing, the vertical screw thread that is provided with in upper casing top center leads to the groove, and the screw thread leads to the inslot and has the protection pipe, protection pipe one side is equipped with the push rod, protection pipe inner chamber is equipped with the guide wire, the rhombus groove has been seted up at upper casing bottom center, and rhombus groove and screw thread lead to the groove intercommunication, the rhombus inslot is built-in to have the nook closing member, and nook closing member bottom is connected with the pjncture needle, pjncture needle upper end one side is equipped with the liquid outlet, the upper casing below is equipped with the lower casing, and lower casing top center is equipped with the spacing groove, the spacing groove below is equipped with and holds the chamber, and holds chamber and spacing groove intercommunication, the lower casing upper end outside is equipped with the stationary vane, the lower casing middle-, The connecting joint and the check valve are formed, a fastening end cover is arranged at the bottom end of the lower sleeve, a remaining needle tube is arranged in the fastening end cover, a protective sleeve is sleeved at the bottom of the remaining needle tube, and a depth control plate is arranged on the rear side wall of the lower sleeve.

Preferably, the protection pipe is equipped with the external screw thread with the corresponding department in screw thread through groove position, protection pipe and screw thread through groove threaded connection, the vertical guide way of having seted up in protection pipe one side, and guide way top one side has seted up the bayonet socket, the push rod is located the guide way and is the up-and-down motion, the push rod top is located the bayonet socket and fixed with the bayonet socket joint, push rod bottom and guide wire fixed connection, be equipped with the scale mark on the protection pipe.

Preferably, the upper sleeve and the lower sleeve are fixed in a threaded manner, the diamond-shaped groove and the limiting groove are matched and sealed to form a cavity, the needle core seat is located inside the cavity and matched with the cavity, a clamping groove is formed in the position, corresponding to the puncture needle, of the needle core seat, and one end of the puncture needle is located in the clamping groove and clamped and fixed with the clamping groove.

Preferably, the lower sleeve pipe lower extreme encircles and is equipped with the hand and tears fixed subsides, equidistant card limit that is equipped with on the lower sleeve pipe rear side wall, the corresponding department in depth control board and card limit position all is equipped with the fixed slot, the lower sleeve pipe is fixed with the depth control board joint, depth control board one side is equipped with the handle, rhombus groove and threaded groove junction, hold chamber and spacing groove junction, lower sleeve pipe and fastening end cover junction all are equipped with sealing rubber stopper.

Preferably, the threaded through groove, the protective guide pipe, the guide wire, the diamond-shaped groove, the puncture needle, the limiting groove, the accommodating cavity, the fastening end cover and the indwelling needle tube are all positioned on the same axial line.

Preferably, the hollow tube right-hand member communicates with each other with holding the chamber, the piston sets up and is the side-to-side motion inside the hollow tube, be equipped with the spring between the head end of hollow tube and piston, be equipped with the pilot lever on the head end of piston, the hollow tube left end is equipped with the indicator cover, and the indicator cover facing is equipped with artery picture layer and vein picture layer, pilot lever one end runs through the hollow tube lateral wall and extends to inside the indicator cover, be equipped with the scale mark on the pilot lever, connector sets up in connecting pipe one end, the check valve sets up between the part that lower casing is connected to lower casing and connecting pipe, the connecting pipe communicates with each other and is the setting of contained angle 10-20 with the lower casing.

Has the advantages that: the utility model relates to a novelty, and is rational in infrastructure, the protection pipe, push rod and guide wire design easy operation, it is more convenient to get into the use than the side, liquid outlet and pressure measurement device design are convenient for judge whether artery or vein, acquire the internal pressure who holds the chamber through pressure measurement device, and can the real-time observation pressure condition, thereby make whole process more accurate, the depth control board design is convenient for control the depth of puncture, withdraw from behind the pjncture needle, directly carry the perfusate through the connecting pipe and hold the intracavity and pour into the artery into, need not to put the pipe once more, connector just is connected with other devices, the check valve prevents that the perfusate from flowing backwards under arterial pressure, the protective sheath design prevents the accidental injury.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the pressure measuring device of the present invention;

fig. 3 is a schematic view of the structure of the depth control plate of the present invention.

In the figure: 1-upper sleeve, 2-thread through groove, 3-protective conduit, 4-push rod, 5-guide wire, 6-rhombus groove, 7-needle core seat, 8-puncture needle, 9-liquid outlet, 10-lower sleeve, 11-limit groove, 12-containing cavity, 13-fixed wing, 14-pressure measuring device, 141-hollow tube, 142-piston, 143-indicating rod, 15-infusion device, 151-connecting tube, 152-connecting joint, 153-one-way valve, 16-fastening end cover, 17-indwelling needle tube, 18-protective sleeve, 19-depth control plate, 191-fixed groove and 192-handle.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the drawings and the accompanying examples:

referring to fig. 1 and fig. 3, the present invention provides a technical solution: the utility model provides an artery trocar for department of neurology, including upper casing pipe 1, the vertical screw thread that is provided with in upper casing pipe 1 top center leads to groove 2, and screw thread leads to the inslot and 2 embeds has protection pipe 3, protection pipe 3 one side is equipped with push rod 4, the inner chamber of protection pipe 3 is equipped with guide wire 5, upper casing pipe 1 bottom center has seted up rhombus groove 6, and rhombus groove 6 and screw thread lead to groove 2 intercommunication, rhombus groove 6 embeds has nook closing member seat 7, and nook closing member seat 7 bottom is connected with pjncture needle 8, pjncture needle 8 upper end one side is equipped with liquid outlet 9, upper casing pipe 1 below is equipped with down sleeve pipe 10, and down sleeve pipe 10 top center is equipped with spacing groove 11, spacing groove 11 below is equipped with and holds chamber 12, and hold chamber 12 and spacing groove 11 intercommunication, down sleeve pipe 10 upper end outside is equipped with stationary vane 13, down sleeve, The infusion device 15 comprises a connecting pipe 151, a connecting joint 152 and a one-way valve 153, the bottom end of the lower sleeve 10 is provided with a fastening end cover 16, an indwelling needle tube 17 is arranged in the fastening end cover 16, the bottom of the indwelling needle tube 17 is sleeved with a protective sleeve 18, and the rear side wall of the lower sleeve 10 is provided with a depth control plate 19.

Wherein, the protection catheter 3 is provided with external threads corresponding to the thread through groove 2, the protection catheter 3 is in threaded connection with the thread through groove 2, one side of the protection catheter 3 is vertically provided with a guide groove, one side of the top end of the guide groove is provided with a bayonet, a push rod 4 is positioned in the guide groove and moves up and down, the top of the push rod 4 is positioned in the bayonet and is clamped and fixed with the bayonet, the bottom of the push rod 4 is fixedly connected with a guide wire 5, the protection catheter 3 is provided with scale marks, an upper sleeve 1 is fixed with a lower sleeve 10 by screw connection, a rhombic groove 6 is matched and sealed with a limit groove 11 to form a cavity, a needle core seat 7 is positioned in the cavity and is matched with the cavity, a clamping groove is arranged at the position corresponding to the puncture needle core seat 7, one end of the puncture needle 8 is positioned in the clamping groove and is clamped and fixed with the clamping groove, the lower end of the lower sleeve 10 is provided with a hand, the lower sleeve 10 is clamped and fixed with the depth control plate 19, one side of the depth control plate 19 is provided with a handle 192, the joint of the rhombic groove 6 and the threaded through groove 2, the joint of the accommodating cavity 12 and the limiting groove 11, and the joint of the lower sleeve 10 and the fastening end cover 16 are all provided with sealing rubber stoppers, the threaded through groove 2, the protective conduit 3, the guide wire 5, the rhombic groove 6, the puncture needle 8, the limiting groove 11, the accommodating cavity 12, the fastening end cover 16 and the remaining needle tube 17 are all positioned on the same axial line, the right end of the hollow tube 141 is communicated with the accommodating cavity 12, the piston 142 is arranged inside the hollow tube 141 and moves left and right, a spring is arranged between the hollow tube 141 and the head end of the piston 142, the head end of the piston 142 is provided with an indicating rod 143, the left end of the hollow tube 141 is provided with an indicating cover, an artery layer and a vein layer are attached on the indicating cover, the connection joint 152 is provided at one end of the connection pipe 151, the check valve 153 is provided between the lower casing 10 and a portion of the connection pipe 151 connected to the lower casing 10, and the connection pipe 151 is communicated with the lower casing 10 and is disposed at an angle of 10 to 20 degrees.

The utility model discloses a theory of operation and use flow: when the device is used, the puncture depth is controlled by adjusting the position of the lower sleeve 10 on the depth control plate 19, then the protective sleeve 18 is pulled out, the artery of a patient is punctured, the puncture needle 8 punctures the blood vessel together with the indwelling needle tube 17, blood flows into the accommodating cavity 12 through the liquid outlet hole 9, then flows to the hollow tube 141, and pushes the piston 142 to move, so that the indicating rod 143 is driven to move towards the indicating cover, if the artery is inserted, the piston 142 can move to the region of the arterial map layer on the indicating cover because the blood pressure in the artery is slightly higher and the pulse jumps, otherwise, if the vein is inserted, the piston 142 can move to the region of the venous map layer on the indicating cover, when the puncture needle 8 is withdrawn, the upper sleeve 1 and the lower sleeve 10 are separated, the needle core seat 7 is taken out, the puncture needle 8 is pulled out, after the puncture needle 8 is withdrawn, directly carry the perfusate to hold in the chamber 12 and pour into the artery through connecting pipe 151, need not to put the pipe once more, attach fitting 152 is convenient for be connected with other devices, and check valve 153 prevents the perfusate refluence under arterial pressure, when needing the guide wire 5 to intervene the treatment, takes out nook closing member seat 7, then pushes down push rod 4 and drives to guide wire 5 downstream, stops when suitable degree of depth can.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A neurologic arterial trocar comprising an upper cannula (1), characterized in that: the needle core device is characterized in that a thread through groove (2) is vertically arranged at the center of the top of the upper sleeve (1), a protective guide pipe (3) is arranged in the thread through groove (2), a push rod (4) is arranged on one side of the protective guide pipe (3), a guide wire (5) is arranged in an inner cavity of the protective guide pipe (3), a diamond-shaped groove (6) is formed in the center of the bottom of the upper sleeve (1), the diamond-shaped groove (6) is communicated with the thread through groove (2), a needle core seat (7) is arranged in the diamond-shaped groove (6), a puncture needle (8) is connected to the bottom of the needle core seat (7), a liquid outlet (9) is formed in one side of the upper end of the puncture needle (8), a lower sleeve (10) is arranged below the upper sleeve (1), a limiting groove (11) is formed in the center of the top of the lower sleeve (10), an accommodating cavity (12) is arranged below the limiting groove, the utility model discloses a set up the sleeve pipe, including lower sleeve pipe (10), lower sleeve pipe (10) middle-end left and right sides is equipped with pressure measurement device (14) and infusion set (15) respectively, pressure measurement device (14) comprise hollow tube (141), piston (142) and indicator lever (143), infusion set (15) comprise connecting pipe (151), attach fitting (152) and check valve (153), lower sleeve pipe (10) bottom is equipped with fastening end cover (16), and fastening end cover (16) built-in have remaining needle tubing (17), remaining needle tubing (17) bottom cover is equipped with protective sheath (18), be equipped with degree of depth control board (19) on lower sleeve pipe (10) back side wall.

2. A neurological arterial trocar according to claim 1, wherein: protection pipe (3) lead to the corresponding department in groove (2) position with the screw thread and be equipped with the external screw thread, protection pipe (3) lead to groove (2) threaded connection with the screw thread, the vertical guide way of having seted up in protection pipe (3) one side, and guide way top one side has seted up the bayonet socket, push rod (4) are located the guide way and are the up-and-down motion, push rod (4) top is located the bayonet socket and is fixed with the bayonet socket joint, push rod (4) bottom and guide wire (5) fixed connection, be equipped with the scale mark on protection pipe (3).

3. A neurological arterial trocar according to claim 1, wherein: the upper sleeve (1) is fixed with the lower sleeve (10) in a threaded connection mode, the diamond-shaped groove (6) and the limiting groove (11) are matched and sealed to form a cavity, the needle core seat (7) is located inside the cavity and matched with the cavity, a clamping groove is formed in the position, corresponding to the puncture needle (8), of the needle core seat (7), and one end of the puncture needle (8) is located in the clamping groove and clamped and fixed with the clamping groove.

4. A neurological arterial trocar according to claim 1, wherein: lower sleeve pipe (10) lower extreme encircles and is equipped with the hand and tears fixed subsides, equidistant card limit that is equipped with on lower sleeve pipe (10) rear side wall, depth control board (19) all are equipped with fixed slot (191) with the corresponding department in card limit position, lower sleeve pipe (10) are fixed with depth control board (19) joint, depth control board (19) one side is equipped with handle (192), rhombus groove (6) lead to groove (2) junction with the screw thread, hold chamber (12) and spacing groove (11) junction, lower sleeve pipe (10) and fastening end cover (16) junction all are equipped with sealed rubber buffer.

5. A neurological arterial trocar according to claim 1, wherein: the thread through groove (2), the protective guide pipe (3), the guide wire (5), the diamond-shaped groove (6), the puncture needle (8), the limiting groove (11), the accommodating cavity (12), the fastening end cover (16) and the indwelling needle tube (17) are all located on the same axial line.

6. A neurological arterial trocar according to claim 1, wherein: the right end of the hollow pipe (141) is communicated with the containing cavity (12), the piston (142) is arranged in the hollow pipe (141) and moves left and right, a spring is arranged between the hollow tube (141) and the head end of the piston (142), an indicating rod (143) is arranged on the head end of the piston (142), an indicating cover is arranged at the left end of the hollow tube (141), an artery layer and a vein layer are pasted on the indication cover, one end of the indication rod (143) penetrates through the side wall of the hollow tube (141) and extends to the inside of the indication cover, the indication rod (143) is provided with scale marks, the connecting joint (152) is arranged at one end of the connecting pipe (151), the one-way valve (153) is arranged between the lower sleeve (10) and the part of the connecting pipe (151) connected with the lower sleeve (10), the connecting pipe (151) is communicated with the lower sleeve (10) and is arranged at an included angle of 10-20 degrees.