CN201123831Y - Three-way biliary tract endoscope - Google Patents

Abstract

The utility model relates to a triple-channel biliary endoscope, which is a core medical instrument for endoscope minimally invasive operation of retention of a gall bladder and calculus and polypus removal. The utility model comprises a biliary endoscope and an external sheath catheter. Due to arrangement of the external sheath catheter, two channels for entry of surgical instruments are additionally arranged; three channels for entry of the surgical instruments can be mostly provided during the operation of retention of the gall bladder and calculus and polypus removal, thereby the use range of the operation is greatly expanded and the safety and the convenience of the operation are improved. The triple-channel biliary endoscope also shortens the length of the end part of the biliary endoscope; moreover, the diameter of the end part is more precise compared with the prior endoscope, thereby the operation of retention of the gall bladder and calculus and polypus removal can be better performed and the quality of the operation is improved.

Description

Triple-channel endoscope for biliary tract

Technical field

This utility model belongs to field of medical appliances, relates to modern medicine and carries out new-type scope Wicresoft and protect a kind of core medical instrument that gallbladder is got stone, got the polyp operation.

Prior art

At present, the biliary tract scope that gallbladder is got stone, got the polyp operation is protected by the existing Wicresoft that is used for, because volume is less, has only an operating walk way, and big with the joining ancillary equipment quality of scope, operation inconvenience, scope undergos surgery to cause the doctor to be difficult to correctly fixedly in operation.

Get stone at guarantor's gallbladder, get in the polyp operation,, in the operation, need reserve the distance of 150mm so that carry out operation efficiently, but the size of existing biliary tract scope fails to satisfy above-mentioned requirements if the length of gallbladder is 100mm approximately.

Hospital sums up experience in a large amount of operation cases, for the special circumstances of getting at guarantor's gallbladder in the stone operation, be shaped or some drift things greater than cystic polyp, the intracavity gallbladder of 1.5mm as calculus, diameter under the mucous membrane of gallbladder, utilize existing single channel biliary tract scope to be difficult to the processing that undergos surgery effectively.Based on this problem, the designer has proposed the structural design of dual pathways biliary tract scope, it is at the external sheath pipe of human body input, purpose increases a mechanical passage, promptly increase an operation path, this improved structure has been done improvement to a certain degree to the problems referred to above, makes operation increase safety and effectiveness, has improved the medical safety quality that gallbladder is got stone, got the polyp operation.But, this improved dual pathways biliary tract scope is not realized full effective surgery processing yet fully, be shaped or some drift things for too much cystic polyp, intracavity gallbladder, utilize existing single channel or dual pathways biliary tract scope all can't solve the problem of bringing in the operation fully, thoroughly, better.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of existing single channel or dual pathways biliary tract scope, proposes a kind of guarantor's gallbladder that is applicable to more and gets stone, gets the triple-channel endoscope for biliary tract that the polyp operation is more thorough, safety coefficient is higher.

This utility model is realized in the following manner:

A kind of triple-channel endoscope for biliary tract, comprise the biliary tract scope, the biliary tract scope comprises input, endoscopic cold light source input and the human body input of scope machinery passage, scope water inlet and exhalant canal, scope optical lens, its human body input at the biliary tract scope fixedly is nested with an external sheath pipe, and external sheath pipe is provided with human body input passage and two mechanical passages of biliary tract scope.

Described triple-channel endoscope for biliary tract, two mechanical passage inputs of its external sheath pipe and external sheath caliber are to being 45 degree respectively.

Form the angle of 90 degree between described two mechanical passages.

Described triple-channel endoscope for biliary tract, its external sheath pipe is by being connected with the connecting axle of elastic snap ring with the biliary tract scope.

Described triple-channel endoscope for biliary tract, the human body input optimum diameter of its biliary tract scope is 3.2mm, wall thickness 0.15mm, and scope machinery passage optimum size is between 2.9mm and 1.8mm, the input optimum diameter of scope optical lens is 1mm, and human body input optimum length is 280mm.

Described triple-channel endoscope for biliary tract, it is circular that the end that enters human body of its external sheath pipe is designed to non-rule, its maximum outside diameter is set to 6.5mm, the tip lengths that enters human body is set to 250mm, admission passage and two mechanical passages of a biliary tract scope are set, biliary tract scope channel diameter 3.5mm and mechanical passage (operation technique passage) diameter 2mm.

This utility model is provided with external sheath pipe on existing biliary tract scope, its biliary tract scope is consistent with traditional structure, and its external sheath pipe is a device that is fixed on biliary tract scope human body input; Itself and twin-channel biliary tract scope difference are that its external sheath pipe provides two mechanical passages, combine with the mechanical passage of biliary tract scope self, three operation technique passages can be provided at most, be shaped or some drift things for too much cystic polyp, intracavity gallbladder, utilize triple-channel endoscope for biliary tract can solve the problem of bringing in the operation fully, thoroughly, better, thereby the more complicated guarantor's gallbladder of realization is got stone, is got the polyp operation.

The mechanical passage input of external sheath pipe is 45 degree with the best radially; Article two, the best is an angle of 90 degrees between the mechanical passage, and purpose makes things convenient for entering flexibly of operating theater instruments.

External sheath pipe connects simply, stablizes by being connected with the connecting axle of elastic snap ring with novel biliary tract scope, helps undergoing surgery reliably.In fact its syndeton can adopt multi-form syndeton, is not limited to this mode.

This utility model has shortened the length that enters people's end of body, owing to shortened effective length, thus increased the stability of scope in the operation, help protecting the carrying out that gallbladder is got stone, got the polyp operation more, improve the medical safety quality.

This utility model also improves the size that the biliary tract scope enters the end of human body, the diameter of the diameter of elder generation end, the diameter of mechanical passage, optical lens is more meticulousr than present scope, the less relatively biliary tract scope end of size can enter the finer position of human body in operation, observe situation about in the past not being observed, littler calculus, polyp are obtained completely, find and effectively handle calculus under the mucous membrane of gallbladder, improve the quality of medical treatment greatly.

This utility model biliary tract scope is divided into a series of specification according to the angle of optical lens, is respectively 0 degree mirror, 30 degree mirrors, 70 degree mirrors.Abundant biliary tract scope series can be selected suitable scope according to patient's operation different situations for the doctor.

This utility model greatly enlarges the scope of application of operation, has improved the operation safety coefficient.

Description of drawings

Fig. 1 is an overall structure sketch map of the present utility model.

Fig. 2 is this utility model external cabling structural representation.

Fig. 3 is an external sheath tubular construction side view of the present utility model.

Fig. 4 is an external sheath tubular construction front view of the present utility model.

Fig. 5 is a biliary tract scope structural representation of the present utility model.

Fig. 6 is a first end of the present utility model partial schematic diagram.

Fig. 7 is the syndeton sketch map of biliary tract scope of the present utility model and external sheath pipe.

The specific embodiment

Below in conjunction with accompanying drawing this utility model is described in further detail:

As shown in Figure 1, this utility model is made up ofbiliary tract scope 2 and external sheath pipe 1.Again in conjunction with the accompanying drawings 5 and accompanying drawing 6 shown in,biliary tract scope 2 comprisesinput 25, endoscopic cold light source input 24 and thehuman body input 21,22 ofscope machinery passage 210, scope water inlet andexhalant canal 27, scope optical lens.

As shown in Figure 2,biliary tract scope 2 externalcold light source 3 and external imageoptical systems 4.

Shown in accompanyingdrawing 3,4,external sheath pipe 1 comprisesblank area 13, mechanical passage input 14,15 and enters theend 11 and 12 of human body, mechanical passage input 14,15 corresponding respectively mechanicalchannel output end 16,18.

The end that enters human body comprisesfirst end 11 andend 12, and theend 12 best total lengths that enter human body are 250mm, andfirst end 11 external diameters are set to non-rule circle, and its maximum gauge is 6.5mm, and minimum diameter is 5.5mm.

In conjunction with the accompanying drawings 6,external sheath pipe 1 is provided with humanbody input passage 18 and twomechanical passages 16 and 17 of biliary tract scope 2.The optimum diameter that offers thescope passage 18 thatbiliary tract scope 2ends 22 enter is 3.5mm, and it is 2mm thatmechanical passage 16 that apparatus enters and 17 optimum diameter are provided.

Mechanical passage 16 in theextraneous sheath pipe 1 and 17 input are provided with rubber sheet gasketing, and effective isolation external world contacts with human body, and prevents to leak.

As shown in Figure 5,23 is the connecting axle structure ofbiliary tract scope 2 andexternal sheath pipe 1, by connecting device,biliary tract scope 2 andexternal sheath pipe 1 is fixed as one; 24 is the input adapter of endoscopic cold light source, for scope provides illumination necessary light source; 25 is the input adapter of scope optical lens, external imageoptical system 4; 26 is the mechanical passage input of scope self, and the attached medical device of scope enters human body from thismachinery passage 26; 27 is the water inlet and the exhalant canal of scope, is separately positioned on the both sides ofmechanical passage 26, for the into passage of water and water outlet is provided in the operation; 21 is the first end of human body input.

Present embodimenthuman body input 22 optimum diameters are 3.2mm, wall thickness 0.15mm, and the optimum size ofscope machinery passage 210 internal diameters is between 2.9mm and 1.8mm, and scopeoptical lens 28 optimum diameters are 1mm, and human body input optimum length is 284mm.

As shown in Figure 6, beexternal sheath pipe 1 of present embodiment andbiliary tract scope 2 structural representation in conjunction with first end, back.16 and 17 beexternal sheath pipe 1 provide go out the outer two other machinery passage of biliary tract scope, the 18th,external sheath pipe 1 offers the scope passage thatbiliary tract scope 2 ends enter, the 28th, the optical lens of biliary tract scope, the 29th, the cold light source of biliary tract scope, the 210th, the mechanical passage of biliary tract scope self, 211 is three themechanical passage 16,17 of themechanical passage 210 by the biliary tract scope and external sheath pipe operating theater instruments of stretching out respectively.

In conjunction with the accompanying drawings shown in 7, the structural representation of the coupling part of the input ofbiliary tract scope 2 andexternal sheath pipe 1, the 22nd, the input ofbiliary tract scope 2, the 23rd, the connecting axle of biliary tract scope, the 131st, the rubber-like snap ring that cooperates with biliary tractscope connecting axle 23, the 132nd, connecting hole, connectinghole 132 has been attacked female thread,snap ring 131 has been attacked external screw thread, and snapring 131 and connectinghole 132 pass through threaded engagement.Whenbiliary tract scope 2 matches withexternal sheath pipe 1, the connectingaxle 23 of biliary tract scope backs down thesnap ring 131 of 132 li of connecting holes, thereby enter connectinghole 132, by the time the top of connectingaxle 23 is by after the snap ring, snap ring restores to the original state under the elastic force effect, be stuck in the groove of connectingaxle 23, thereby realize fixed purpose.

Present embodiment only provides a kind of syndeton structure, and the fixed form of in factexternal sheath pipe 1 andbiliary tract scope 2 has multiple syndeton, is not limited to this.

Claims (7)

1, a kind of triple-channel endoscope for biliary tract, comprise biliary tract scope (2), biliary tract scope (2) comprises scope machinery passage (210), scope water inlet and exhalant canal (27), input (25), endoscopic cold light source input (24) and the human body input (21) of scope optical lens, (22), it is characterized in that: fixedly be nested with an external sheath pipe (1) in human body input (21), (22) of biliary tract scope (2), external sheath pipe (1) is provided with the human body input passage (18) of biliary tract scope (2) and mechanical passage (16), mechanical passage (17).

2, triple-channel endoscope for biliary tract according to claim 1, what it is characterized in that the input of the mechanical passage (16) of external sheath pipe (1), mechanical passage (17) and external sheath pipe (1) radially is 45 degree respectively.

3, triple-channel endoscope for biliary tract according to claim 2 is characterized in that the input of mechanical passage (16) and the input of mechanical passage (17) are an angle of 90 degrees.

4, triple-channel endoscope for biliary tract according to claim 1 is characterized in that external sheath pipe (1) is by being connected with the connecting axle (23) of biliary tract scope (2) with elastic snap ring (131).

5, triple-channel endoscope for biliary tract according to claim 1 is characterized in that the human body input optimum diameter of biliary tract scope (2) is 3.2mm, wall thickness 0.15mm, and length is 284mm; Scope machinery passage (210) optimum size is between 2.9mm and 1.8mm; The input optimum diameter of scope optical lens (28) is 1mm.

6, triple-channel endoscope for biliary tract according to claim 1, the optimum diameter that it is characterized in that external sheath pipe (1) is 6.5mm, minimum diameter 5.5mm, length is 250mm.

7, triple-channel endoscope for biliary tract according to claim 1, the end that it is characterized in that external sheath pipe (1) are that non-rule is circular.

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