CN201244014Y

CN201244014Y - Injection needle for adjustable endoscope

Info

Publication number: CN201244014Y
Application number: CNU2008200300561U
Authority: CN
Inventors: 赵曙光
Original assignee: TANGDU HOSPITAL FOURTH MILITARY MEDICAL UNIVERSITY OF PLA
Current assignee: TANGDU HOSPITAL FOURTH MILITARY MEDICAL UNIVERSITY OF PLA
Priority date: 2008-08-25
Filing date: 2008-08-25
Publication date: 2009-05-27
Anticipated expiration: 2018-08-25

Abstract

The utility model discloses a syringe used for an adjustable inner lens, which comprises a syringe channel formed by the sequential connection of a syringe connecting seat, a bushing, a syringe core and a needle, wherein a syringe core outer sleeve is sleeved on the exterior of the syringe core and the needle and is connected with one end of the connecting seat, and the other end of the connecting seat is sleeved on the exterior of the bushing; an outside thread is arranged on the surface of the outer circumference of the bushing in a joint of the bushing and the connecting seat, and an inside thread is arranged on the inner hole wall of the connecting seat; an adjusting knob is also mounted on the bushing, and scale marks are marked on the outer wall of the bushing along an axis. In the utility model, because the thread is arranged and scale marks are marked on the bushing of an inner lens mediated syringe, the bushing can be adjusted to control the piercing depth of the syringe so as to effectively adjust the piercing depth of an ultra-long syringe core in a use process and have convenient use and low manufacture cost.

Description

Adjustable scope entry needle

Technical field

This utility model belongs to technical field of medical instruments, relates to a kind of adjustable scope entry needle.

Background technology

Existing scope entry needle, its needle point stretch out telescopic length can only be determined before operation, once determining, just can not change in operation process again, can't be according to the concrete condition of affected part, and the degree of depth that the metering needle spine is gone into.

Summary of the invention

The purpose of this utility model provides a kind of adjustable scope entry needle, has solved the problem of can't the metering needle spine going into the degree of depth that exists in the prior art.

The technical scheme that this utility model adopted is, a kind of adjustable scope entry needle, comprise the syringe Connection Block, sleeve pipe, nook closing member and the syringe needle that connect and compose injection canal successively, the outside of nook closing member and syringe needle is set with the nook closing member overcoat, the nook closing member overcoat is connected with an end of Connection Block, and the other end of Connection Block is sleeved on telescopic outside, in the connection of sleeve pipe and Connection Block, telescopic external peripheral surface is provided with external screw thread, and the inner hole wall of Connection Block is provided with female thread.

Characteristics of the present utility model also are,

Adjusting knob also is installed on sleeve pipe.

In the portrayal of telescopic tube wall upper edge axis graduation mark is arranged.

The beneficial effects of the utility model are, can adjust effectively with the display operation process in the depth of needle problem of overlength nook closing member, easy to use, cost of manufacture is low.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of this utility model entry needle.

Among the figure, 1, the nook closing member overcoat, 2, Connection Block, 3, sleeve pipe, 4, the syringe Connection Block, 5, nook closing member, 6, syringe needle, 7, graduation mark, 8, adjusting knob, 9, syringe.

The specific embodiment

Below in conjunction with the drawings and specific embodiments this utility model is elaborated.

Fig. 1 is the structural representation of a kind of embodiment of this utility model.Comprise the syringe Connection Block 4, sleeve pipe 3, nook closing member 5 and the syringe needle 6 that connect and compose injection canal successively, the outside of nook closing member 5 and syringe needle 6 is set with nook closing member overcoat 1, nook closing member overcoat 1 is connected with an end of Connection Block 2, the other end of Connection Block 2 is sleeved on the outside of sleeve pipe 3, in the connection of sleeve pipe 3 with Connection Block 2, the external peripheral surface of sleeve pipe 3 is provided with external screw thread, the inner hole wall of Connection Block 2 is provided with female thread, adjusting knob 8 also is installed on sleeve pipe 3, graduation mark 7 is arranged in the portrayal of the outer tube wall upper edge of sleeve pipe 3 axis.

Graduation mark 7 can accurately show the be screwed into amount of sleeve pipe 3 at Connection Block 2, thereby control syringe needle 6 is in the intravital degree of depth of thrusting of people; Adjusting knob 8 is to play fixation after sleeve pipe 3 is adjusted to the right place, and preventing influences the location of syringe needle 6 in 3 activities of injection operation middle sleeve.Nook closing member 5 is a kind of overlength nook closing members, can stretch into inside of human body under the protection support of overlength nook closing member overcoat 1, and corresponding site is carried out injection operation.

During this utility model work, syringe 9 is connected with syringe Connection Block 4 reliably, then nook closing member 5 is goed deep into the position that human body need be injected, screw the enter degree of depth of sleeve pipe 3 according to the indication of graduation mark 7 again to needs, this moment, syringe needle 6 just thrust corresponding site according to operation, adjusting knob 8 is tightened, syringe Connection Block 4, sleeve pipe 3, nook closing member 5 and syringe needle 6 are the injection pipeline of an independent completion again, and medicinal liquid is expelled in the human body by this passage from syringe 9.

The sleeve pipe of scope mediation entry needle of the present utility model is provided with screw thread, and the mark scale, regulates the degree of depth that the sleeve pipe controlled injection is needled into, and can adjust the depth of needle problem of overlength nook closing member in the use effectively, and easy to use, cost of manufacture is low.

Claims

1, a kind of adjustable scope entry needle, comprise the syringe Connection Block (4), sleeve pipe (3), nook closing member (5) and the syringe needle (6) that connect and compose injection canal successively, the outside of nook closing member (5) and syringe needle (6) is set with nook closing member overcoat (1), nook closing member overcoat (1) is connected with an end of Connection Block (2), the other end of Connection Block (2) is sleeved on the outside of sleeve pipe (3), it is characterized in that: in the connection of sleeve pipe (3) with Connection Block (2), the external peripheral surface of described sleeve pipe (3) is provided with external screw thread, and the inner hole wall of described Connection Block (2) is provided with female thread.

2, adjustable scope entry needle according to claim 1 is characterized in that: adjusting knob (8) also is installed on the described sleeve pipe (3).

3, adjustable scope entry needle according to claim 1 is characterized in that: the outer tube wall upper edge axis portrayal of described sleeve pipe (3) has graduation mark (7).