CN203677207U

CN203677207U - Spinal epidural minimally invasive catheter

Info

Publication number: CN203677207U
Application number: CN201320733979.4U
Authority: CN
Inventors: 周建明
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-20
Filing date: 2013-11-20
Publication date: 2014-07-02
Anticipated expiration: 2023-11-20

Abstract

The utility model relates to a medical surgical instrument, in particular to a spinal epidural minimally invasive catheter used for infusion of epidural nerves. A main body of the spinal epidural minimally invasive catheter comprises a handle and a catheter core, and has the structural characteristics that a guiding catheter, the catheter core and a sliding block are arranged in the handle; the front end of the handle is provided with a diversion column; the front end of the guiding catheter is connected with the rear end of the catheter core by the diversion column; the diversion column is internally provided with a small diversion channel; the front end of the guiding catheter is communicated with the catheter core by the small diversion channel; the rear end of the guiding catheter extends outside the handle; the catheter core is internally provided with a steel wire connected with the sliding block; the handle is also internally provided with a sliding rail matched with the sliding block in a sliding way; the handle is also provided with a pull handle which is in meshing transmission with the sliding block; the spinal epidural minimally invasive catheter also comprises a puncture needle formed by an inner sleeve and an outer sleeve. The spinal epidural minimally invasive catheter has the advantages that the minimally invasive catheter is convenient, fast and flexible to operate and small in wound, and the amount of bleeding in an operation can be reduced.

Description

The outer Wicresoft of a kind of spinal epidural conduit

Technical field

This utility model relates to medical surgical instrument, especially a kind of for giving the outer Wicresoft of the spinal epidural conduit of the neural transfusion of epidural.

Background technology

Epidural nerve is very narrow and small, for its transfusion must arrange a kind of very small conveyer device, and in course of conveying, will keep the stability of transfusion and accurately control the amount of infusion in a period of time.

The neural infusion set of at present conventional epidural adopts extruding control structure, to arrange multiple liquid sheets that push away along tube for transfusion mostly, utilization pushes away liquid sheet and continuously pushes tube for transfusion from bottom to top, thereby realize automatic infusion, but after repeatedly pushing, can cause the flexibility decrease of tube for transfusion, reduce the actual life of tube for transfusion.The more important thing is that common transfusion device is generally all larger, be not suitable for the neural transfusion of epidural.

Summary of the invention

Technical problem to be solved in the utility model is to provide the outer Wicresoft of the spinal epidural conduit of the amount of bleeding that a kind of simple operation is flexible, wound is little, reduction is performed the operation.

The technical scheme in the invention for solving the above technical problem is: this conduit comprises handle and tube core, its construction features is in handle, to be provided with guiding tube, tube core and slide block, the front end of handle is provided with diversion column, the front end of guiding tube is connected with the rear end of tube core by diversion column, in diversion column, be provided with little flow-guiding channel, the front end of guiding tube is connected with tube core by little flow-guiding channel, and handle is stretched out in the rear end of guiding tube; In tube core, be provided with the steel wire being connected with slide block, in handle, be also provided with the slide rail being slidingly fitted with slide block, on handle, be also provided with the handle with slide block engaged transmission.

On slide block described in the utility model, be provided with groove A, be provided with groove B on handle, slide block and handle are by groove A and groove B engaged transmission.

The rear end of guiding tube described in the utility model is provided with seal wire.

In handle described in the utility model, be provided with bracing frame, guiding tube is arranged on bracing frame.

This utility model also includes the puncture needle being made up of inner sleeve and trocar sheath.

This utility model compared with prior art, there is following beneficial effect: this infusion set volume is small and exquisite, simple in structure, simple operation is flexible, only need pull gently handle, can drive tube core bending by steel wire, tube core inserts after puncture needle trocar sheath, and medicine is injected in vivo through tube core, little flow-guiding channel and tube core, can reduce the wound of operation, reduce the amount of bleeding of operation, be applicable to the Wicresoft's transfusion to the epidural such as chronic low back pain, lumbar spinal stenosis nerve.

Brief description of the drawings

Below in conjunction with drawings and Examples, this utility model is further illustrated.

The perspective view of Fig. 1 this utility model main body.

Fig. 2 is the cross-sectional view of this utility model main body.

Fig. 3 is the A place enlarged drawing of Fig. 2.

Fig. 4 is the perspective view of this utility model puncture needle.

Fig. 5 is the cross-sectional view of this utility model puncture needle.

In figure: 1-seal wire, 2-guiding tube, 3-bracing frame, 4-handle, 5-slide rail, 6-slide block, 6a-groove A, 7-diversion column, the little flow-guiding channel of 7a-, 8-steel wire, 9-tube core, 10-handle, 10a-groove B, 11-inner sleeve, 12-trocar sheath.

Detailed description of the invention

The present embodiment is made up of main body and puncture needle.

Referring to Fig. 1-Fig. 3, main body comprises handle 4 and tube core 9, is provided with guiding tube 2, tube core 9, slide block 6 and bracing frame 3 in handle 4, and guiding tube 2 is arranged on bracing frame 3.The front end of handle 4 is provided with diversion column 7, the front end of guiding tube 2 is connected with the rear end of tube core 9 by diversion column 7, in diversion column 7, be provided with little flow-guiding channel 7a, the front end of guiding tube 2 is connected with tube core 9 by little flow-guiding channel 7a, handle 4 is stretched out in the rear end of guiding tube 2, and is provided with seal wire 1 in the rear end of guiding tube 2; In tube core 9, be provided with the steel wire 8 being connected with slide block 6.In handle 4, be also provided with slide rail 5, slide block 6 can slide along slide rail 5; On handle 4, be also provided with handle 10, be provided with groove A6a on slide block 6, on handle 10, be provided with groove B10a, slide block 6 and handle 10 are by groove A6a and groove B10a engaged transmission.

Referring to Fig. 3 and Fig. 4, puncture needle is made up of inner sleeve 11 and trocar sheath 12.

The using method of the present embodiment is as follows:

First along direction shown in Fig. 2, pull handle 10, handle 10 is meshed by groove A6a and groove B10a, and band movable slider 6 moves to handle 4 rear ends along slide rail 5, and the steel wire 8 being connected with slide block 6 is tightened up, and tube core 9 is bending under the tightening force effect of steel wire 8; Then puncture needle is inserted into the vertebra of epidural space from the gap of coccyx, whether the position of checking puncture needle with developing agent is suitable, then take out puncture needle inner sleeve 11, tube core 9 is inserted in vertebra along puncture needle trocar sheath 12, check again the position of tube core 9 with C shape arm X-ray machine, after being adjusted to correct position, take out seal wire 1, hybrid medicine is injected from the rear end of guiding tube 2, hybrid medicine is injected in vivo along guiding tube 2, little flow-guiding channel 7a, tube core 9.During treating, normal saline also can be injected in vivo by the method.

Claims

1. the outer Wicresoft of a spinal epidural conduit, main body comprises handle (4) and tube core (9), it is characterized in that: in handle (4), be provided with guiding tube (2), tube core (9) and slide block (6), the front end of handle (4) is provided with diversion column (7), the front end of guiding tube (2) is connected with the rear end of tube core (9) by diversion column (7), in diversion column (7), be provided with little flow-guiding channel (7a), the front end of guiding tube (2) is connected with tube core (9) by little flow-guiding channel (7a), and handle (4) is stretched out in the rear end of guiding tube (2); In tube core (9), be provided with the steel wire (8) being connected with slide block (6), in handle (4), be also provided with the slide rail (5) being slidingly fitted with slide block (6), on handle (4), be also provided with the handle (10) with slide block (6) engaged transmission.

2. the outer Wicresoft of spinal epidural according to claim 1 conduit, it is characterized in that: on described slide block (6), be provided with groove A(6a), on handle (10), be provided with groove B(10a), slide block (6) and handle (10) are by groove A(6a) and groove B(10a) engaged transmission.

3. the outer Wicresoft of spinal epidural according to claim 1 conduit, is characterized in that: the rear end of described guiding tube (2) is provided with seal wire (1).

4. the outer Wicresoft of spinal epidural according to claim 1 conduit, is characterized in that: in described handle (4), be provided with bracing frame (3), guiding tube (2) is arranged on bracing frame (3).

5. according to the outer Wicresoft of the arbitrary described spinal epidural of claim 1-4 conduit, it is characterized in that: also include the puncture needle being formed by inner sleeve (11) and trocar sheath (12).