CN2605868Y

CN2605868Y - Miniature digestive canal sampler

Info

Publication number: CN2605868Y
Application number: CN 03232994
Authority: CN
Inventors: 陈为民; 皮喜田; 郑小林; 彭承琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-24
Filing date: 2003-01-24
Publication date: 2004-03-10
Anticipated expiration: 2013-01-24

Abstract

The utility model discloses a minitype alimentary canal sampling device, which is characterized in that a minitype shell is composed of a couple of one opening inside-outside hollow column shells that are jacketed in opposite directions and can move in axial displacement, and a couple of protruding smooth curved shells jacketed at both ends of the outside hollow column shell. A body fluid collecting mechanism in the minitype shell is composed of inside-outside hollow column shells movable in axial displacement and with displaced sampling holes on the surfaces, and an absorption material layer fixed on the inner surfaces on the inside hollow column shell. A power mechanism driving the collecting mechanism to sample is composed of a guide rail on the axle of the minitype shell, wireless magnet components, a soft iron jacketed on both ends of the guide rail and fixed on the inner bottom of the outside column shell and a spring jacketed on both ends of the guide rail and with one terminal fixed on the inner wall of the protruding curved shells and the other terminal respectively pressed on the outer bottom of the inside and the outside column shells. The utility model has the advantages of simple structure, easy assembly and control, low cost, which can facilitate modular production with security and reliability.

Description

A kind of miniature digestive tract sampling apparatus

Technical field

This utility model relates to a kind of assigned address in human body or animal alimentary canal, but can carry out the swallow type micro device of biological fluid extracting.

Background technology

At present, in the research treatment of digestive tract disease, begun to develop a kind of miniature medicament release device abroad, this device can discharge medicine by the lesions position in digestive tract under the control of extraneous instrument.U.S. Pat 2002055734 discloses a kind of so miniature medicament release device.But this device can only be used for fixed point and discharge medicine, but can not gather the body fluid in the digestive tract, therapeutic effect for deliberation.

Summary of the invention

Goal of the invention of the present utility model is: but provide a kind of swallowing type safe and reliable miniature digestive tract sampling apparatus for the research of digestive tract disease, treatment.

Goal of the invention of the present utility model realizes by implementing following technical proposals:

A kind of miniature digestive tract sampling apparatus, the miniature housing that has biocompatibility by smooth surface, be packaged in the intravital position indicative signal source component of shell, be packaged in the intravital biological fluid extracting of shell mechanism, and the actuating unit assembly that drives the collecting mechanism sampling action is formed, it is characterized in that: miniature housing, by a pair of reverse suit inside and outside hollow cylinder seal casinghousing of mobile single radial cut that can misplace vertically that cooperatively interacts, and a pair of ganoid convex surface housing that is sleeved on the wall of outer hollow cylinder seal casinghousing two ends is formed; Be packaged in the intravital biological fluid extracting of shell mechanism, have by the surface that dislocation sampling small opening can axially misplace mobile interior outer hollow cylinder seal casinghousing and the sorbing material layer that is fixed on the inner hollow cylinder seal casinghousing cylindrical inner wall face is formed; Drive the actuating unit of collecting mechanism sampling action, by be fixed on the locational guide rail of housing central axis, be fixed on antenna and electromagnet assembly on the guide rail medium position, be set in end about guide rail be fixed in outer on the column sealed housing intracavity bottom surface soft iron and be sleeved on guide rail left and right sides two ends be pressed in respectively outside effect spring on interior two column sealed housing outer bottoms formed.

Additional technical feature is:

Be sleeved on a pair of ganoid convex surface housing on the wall of outer hollow cylinder seal casinghousing two ends, be coated with in its surface and can not react, the inert metal rete of excellent conductive performance is arranged again with Digestive system.

Advantage of the present utility model is:

Apparatus structure is simple, easy to assembly, control is easy, it is low to realize that modularity is manufactured cost; Simultaneously, because crust of the device is with having the biocompatible materials manufacturing, smooth in appearance does not have spine, thereby safe and reliable; Invention of the present utility model is for the digestive tract grab sampling provides a device that convenience is practical, for a kind of reliable diagnostic means that provide are provided in the research of disease in the digestive tract.

Description of drawings

Fig. 1 has provided this utility model structure vertical profile sketch map

Labelling among the figure: 1 for being coated with the shell of inert metal film, 2 is antenna and electromagnet assembly, 3 is soft iron, and 4 is interior capsul, and 5 is the external seal shell, 6 is center rail, 7 is spring, and 8 is adsorbing material, and 9 is the position indicative signal source component, 10 is the sampling small opening on the external seal shell, and 11 is the sampling small opening on the interior capsul.

The specific embodiment

A kind of miniature digestive tract sampling apparatus, by a pair of smooth surface, have biocompatibility and dislocation sampling small opening 10,11 and reverse outer hollow cylinder seal casinghousing 4 and 5 in the single radial cut that cooperates of suit, and be sleeved on a pair of smooth surface on the outer hollow cylinder seal casinghousing 5 two ends walls by having the miniature sampling apparatus shell that hemisphere housing 1 that biocompatible materials makes is formed; A guide rail 6 is equipped with in central axis position in the enclosure, this guide rail 6 pass inside and outside oppositely suit two single radial cut hollow cylinder housings 4 and 5 bottom center, be fixed on the inwall of two ends hemisphere housing 1; Be fixed with the assembly 2 of an antenna and electric magnet at the middle part of guide rail 6, on the guide rail 6 at two ends, assembly 2 left and right sides, be respectively installed with soft iron 3, and this soft iron 3 is separately fixed on the inwall of inside and outside two hollow cylinder seal casinghousing bottom surfaces, on inner hollow cylinder housing cylindrical inner wall face, be fixed with the sorbing material layer 8 that is used to store sampling, guide rail 6 two ends be respectively installed with act in outer hollow cylinder housing 4, compression spring 7 on 5 outer bottoms, and position indicative signal source component 9 places the intravital end of shell, in order to strengthen the intensity of received signal, on the hemispherical Shell surface at housing two ends, be coated with the inert metal film.

Operation principle of the present utility model is as follows:

After being swallowed, device moves down with gastral wriggling naturally, be positioned at the signal that the position indicative signal source component 9 of digestive tract sends by position indicative signal source detector monitoring, visual work station calculates the movement locus of micro device in digestive tract according to input signal feature physical quantity.Spring 7 is in extended state before action triggers, because the pulling force of left and right sides spring 7 staggers sampling small opening 10,11 positions on inside and outside seal casinghousing 4,5 surfaces, sorbing material layer 8 is sealed.When arriving assigned address, the control signal generating means sends the electromagnetic wave or the low pressure alternating current of fixed frequency, the magnetic force that electric magnet 2 is produced, pulling both sides soft iron 3 is adsorbed in the two poles of the earth of electric magnet 2 rapidly along guide rail 6, make inside and outside seal casinghousing 4,5 relative position changes, sampling small opening 10 on the two housings, 11 alignment, liquid in the digestive tract contacts with sorbing material layer 8 by the sampling small opening and permeates whole sorbing material layer 8, when the control signal generating means stops to send control signal, the magnetic force of electric magnet 2 disappears, under the effect of left and right sides spring 7, soft iron 3 and inside and outside capsul 4,5 are returned to original position, sampling small opening 10,11 is sealed, and this device will be excreted along digestive tract.

Claims

1, a kind of miniature digestive tract sampling apparatus, the miniature housing that has biocompatibility by smooth surface, be packaged in the intravital position indicative signal source component of shell, be packaged in the intravital biological fluid extracting of shell mechanism, and the actuating unit assembly that drives the collecting mechanism sampling action is formed, it is characterized in that: miniature housing, by a pair of reverse suit inside and outside hollow cylinder seal casinghousing of mobile single radial cut (4) (5) that can misplace vertically that cooperatively interacts, and a pair of ganoid convex surface housing (1) that is sleeved on the wall of outer hollow cylinder seal casinghousing (5) two ends is formed; Be packaged in the intravital biological fluid extracting of shell mechanism, have by the surface that dislocation sampling small opening (10) (11) can axially misplace mobile inside and outside hollow cylinder seal casinghousing (4) (5) and the sorbing material layer (8) that is fixed on inner hollow cylinder seal casinghousing (4) the cylindrical inner wall face is formed; Drive the actuating unit of collecting mechanism sampling action, by be fixed on the locational guide rail of housing central axis (6), be fixed on antenna and electromagnet assembly (2) on guide rail (6) medium position, be set in end about guide rail (6) be fixed in outer on column sealed housing (5) (4) the intracavity bottom surface soft iron (3) and be sleeved on guide rail (6) left and right sides two ends be pressed in respectively outside effect spring (7) on interior two column sealed housings (5) (4) outer bottom formed.

2, according to the described miniature digestive tract sampling apparatus of claim 1, it is characterized in that: be sleeved on a pair of ganoid convex surface housing (1) on the wall of outer hollow cylinder seal casinghousing (5) two ends, be coated with in its surface and can not react, the inert metal rete of excellent conductive performance is arranged again with Digestive system.