CN211749870U

CN211749870U - Percutaneous kidney perfusion attraction tearing combined sheath

Info

Publication number: CN211749870U
Application number: CN201921784751.1U
Authority: CN
Inventors: 沈柏华; 包健龙
Original assignee: Hangzhou Zhexin Medical Equipment Co ltd
Current assignee: Hangzhou Zhexin Medical Equipment Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-10-27
Anticipated expiration: 2029-10-23

Abstract

The utility model belongs to the field of medical equipment, concretely relates to percutaneous kidney fills attraction and tears combination sheath, including filling sheath subassembly and attraction sheath subassembly, fill the sheath subassembly including filling the person in charge, the epitheca and fill the branch pipe, attract the sheath subassembly including attracting the person in charge, be responsible for the complex inner sheath and set up in attracting the branch pipe of being responsible for the lateral part with attracting, the rear end of filling the person in charge and the front end of attracting the person in charge pass through coupling assembling and be connected, the inner sheath is located the epitheca, the inner sheath inside have with attract the interior passageway of branch pipe intercommunication, form between inner sheath and the epitheca and fill the outer passageway of branch pipe intercommunication. The structure of the utility model is suitable for injection molding production, has lower cost, can be used once and is more sanitary; the connecting component in the utility model can rapidly assemble and disassemble the perfusion sheath and the suction sheath, and can ensure the sealing performance; the utility model provides a locking seal cover can realize filling the quick assembly disassembly who is responsible for with the epitheca, can guarantee the leakproofness equally.

Description

Percutaneous kidney perfusion attraction tearing combined sheath

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to percutaneous kidney fills to attract and tears combination sheath.

Background

The minimally invasive percutaneous nephroscope calculus removing technique is commonly called 'holing calculus removing', namely a calculus removing channel is established by making an incision of about 0.5cm on the waist of a patient, a nephroscope is placed in the nephroscope, and an ultrasonic air pressure ballistic lithotripter or a holmium laser lithotripter is used for smashing intrarenal calculus, particularly casting calculus and ureter upper segment calculus and then removing the calculus.

Minimally invasive percutaneous nephrolithotomy can be realized by adopting a percutaneous nephrolithotomy system, the existing stone removal system on the market generally adopts the principle of independent perfusion and independent attraction, and the defect of the mode is that the intrarenal pressure is unstable, and intrarenal high pressure is easily caused. The stone removing system adopts double-sheath water inlet and inner sheath water outlet and endoscope body water outlet, and the intelligent host adjusts the water inlet and outlet amount to make the flow rate consistent with the speed, so as to ensure the pressure of the renal pelvis to be in a balanced state, effectively reduce the pressure of the intra-renal integrated system, reduce the operation risk, keep the visual field clear in the operation and make the operation faster, simpler and safer.

The stone removing system such as the Ikepascal and the SMP comprises a B-ultrasonic probe positioner, a zebra guide wire, a dilator, a stone removing suction sheath, a suction valve body, a percutaneous nephroscope, a host control system and the like, wherein the stone removing suction sheath comprises an outer sheath, an inner sheath and an outer sheath obturator. The suction valve body and the suction stone removing sheath are both made of metal, the suction stone removing sheath and the suction valve body made of metal are expensive and heavy in manufacturing cost, damage to peripheral tissues of the kidney is easily caused, the suction stone removing sheath and the suction valve body are repeatedly used among different patients, and the sanitation and safety cannot be completely guaranteed.

Based on the above problems, the applicant has conceived a percutaneous kidney perfusion suction tearing combined sheath made of plastic to replace the suction stone removing sheath and the suction valve body, the percutaneous kidney perfusion suction tearing combined sheath made of plastic can be directly formed by injection molding, is low in manufacturing cost and disposable, and can ensure sanitation and safety, and because the processing technology and the material performance of the plastic are different from those of the metal, the structures of the suction stone removing sheath and the suction valve body made of the original metal material cannot be completely transferred to the percutaneous kidney perfusion suction tearing combined sheath made of the plastic material, so that the structure of the percutaneous kidney perfusion suction tearing combined sheath made of the plastic needs to be redesigned.

SUMMERY OF THE UTILITY MODEL

In order to make up the deficiency of the prior art, the utility model provides a technical scheme that the percutaneous kidney fills the attraction and tears combination sheath.

The percutaneous kidney perfusion attraction tearing combined sheath is characterized by comprising a perfusion sheath component and an attraction sheath component, wherein the perfusion sheath component comprises a perfusion main pipe, an outer sheath matched with the perfusion main pipe in a splicing mode and a perfusion branch pipe arranged on the side portion of the perfusion main pipe, the attraction sheath component comprises an attraction main pipe, an inner sheath matched with the attraction main pipe in a splicing mode and an attraction branch pipe arranged on the side portion of the attraction main pipe, the rear end of the perfusion main pipe is connected with the front end of the attraction main pipe through a connecting component, the inner sheath is located in the outer sheath, an inner channel communicated with the attraction main pipe is formed in the inner sheath, and an outer channel communicated with the perfusion branch pipe is formed between the inner sheath and the.

The percutaneous kidney perfusion attraction tearing combined sheath is characterized in that the connecting assembly comprises an inner sleeve and an outer sleeve, wherein the inner sleeve is sleeved on the front end of the main suction pipe, the outer sleeve is sleeved on the rear end of the main perfusion pipe, the front end of the main suction pipe is inserted into the rear end of the main perfusion pipe, the rear end of the main perfusion pipe is clamped between the inner sleeve and the outer sleeve, and the inner sleeve is clamped with the rear end of the outer sleeve.

The percutaneous renal perfusion suction tearing combined sheath is characterized in that an outer sleeve inner ring is arranged on the inner side of the rear end of an outer sleeve, the rear end of a perfusion main pipe is clamped between the outer sleeve and the outer sleeve inner ring, a first inner sleeve outer bulge is arranged on the outer wall of the front end of an inner sleeve, a second inner sleeve outer bulge is arranged on the outer wall of the rear end of the inner sleeve, and the outer sleeve inner ring is sleeved outside the inner sleeve and clamped between the first inner sleeve outer bulge and the second inner sleeve outer bulge.

The percutaneous kidney perfusion suction tearing combined sheath is characterized in that the rear end of a through hole of a perfusion main pipe is of a stepped hole structure, a sealing ring is arranged between the hole wall of the stepped hole structure and the outer wall of the front end of the suction main pipe, and the front end of an inner sleeve is abutted to the sealing ring.

The percutaneous kidney perfusion attraction tearing combined sheath is characterized in that the outer wall of the rear end of the perfusion main pipe is provided with a perfusion main pipe bulge, the front end ring of the inner wall of the outer sleeve is provided with an outer sleeve bulge, and the perfusion main pipe bulge is connected with the outer sleeve bulge in a clamping mode.

The front end pipe wall of the inner sleeve is annularly provided with a plurality of cracks, so that the front end pipe wall of the inner sleeve forms a circle of blades which are mutually spaced, and the first inner sleeve outer bulge is arranged on the outer wall of each blade.

The percutaneous renal perfusion suction tearing combined sheath is characterized in that a pneumatic valve is arranged on the suction main pipe.

The percutaneous renal perfusion suction tearing combined sheath is characterized in that the pneumatic valve is a duckbill valve.

The percutaneous renal perfusion attraction tearing combined sheath is characterized in that the outer sheath is a tearing sheath.

The percutaneous renal perfusion suction tearing combined sheath is characterized in that the outer sheath is connected with a perfusion main pipe through a locking sealing sleeve, the front end of the locking sealing sleeve is in interference sleeve joint with the rear end of the perfusion main pipe, and the rear end of the locking sealing sleeve is in interference sleeve joint with the rear end of the outer sheath.

The percutaneous renal perfusion suction tearing combined sheath is characterized in that the rear end of the inner sheath is fixedly connected with the front end of the suction main pipe; the rear end of the suction main pipe is provided with a sealing cover.

Compared with the prior art, the structure of the utility model is suitable for injection molding production, has lower cost, can be used once, and is more sanitary; meanwhile, the connecting assembly in the utility model can rapidly assemble and disassemble the perfusion sheath and the suction sheath, and can ensure the sealing performance; the utility model provides a locking seal cover can realize filling the quick assembly disassembly who is responsible for with the epitheca, can guarantee the leakproofness equally.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a second external view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of FIG. 3 at B;

FIG. 5 is an enlarged view of FIG. 3 at C;

fig. 6 is a schematic view of the inner sleeve structure of the present invention;

fig. 7 is a schematic view of the structure of the outer cover of the present invention;

figure 8 is the duckbill valve core structure sketch map in the utility model.

In the figure: the device comprises a main pouring pipe 1, a main pouring pipe protrusion 101, a main pouring pipe blocking shoulder 102, an outer sheath 2, an outer channel 201, a branch pouring pipe 3, a main suction pipe 4, an inner sheath 5, an inner channel 501, a branch suction pipe 6, a connecting assembly 7, an inner sleeve 701, a first inner sleeve outer protrusion 7011, a second inner sleeve outer protrusion 7012, a blade 7013, an inner sleeve inner protrusion 7014, an outer sleeve 702, an outer sleeve inner ring 7021, an outer sleeve protrusion 7022, a sealing ring 8, a pneumatic valve 9, a locking sealing sleeve 10 and a sealing cover 11.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-8, a percutaneous renal perfusion suction tearing combined sheath comprises a perfusion sheath assembly and a suction sheath assembly, wherein the perfusion sheath assembly comprises a perfusion main pipe 1, an outer sheath 2 in plug fit with the perfusion main pipe 1, and a perfusion branch pipe 3 arranged at the side of the perfusion main pipe 1, the suction sheath assembly comprises a suction main pipe 4, an inner sheath 5 in interference plug fit with the suction main pipe 4, and a suction branch pipe 6 arranged at the side of the suction main pipe 4, the rear end of the perfusion main pipe 1 is connected with the front end of the suction main pipe 4 through a connecting assembly 7, the inner sheath 5 is positioned in the outer sheath 2, an inner channel 501 communicated with the suction main pipe 4 is arranged in the inner sheath 5, and an outer channel 201 communicated with the perfusion branch pipe 3 is formed between the inner sheath 5 and the outer.

The concrete structure of coupling assembling: the connecting component 7 comprises an inner sleeve 701 sleeved at the front end of the main suction pipe 4 and an outer sleeve 702 sleeved at the rear end of the main perfusion pipe 1, the inner side of the rear end of the outer sleeve 702 is provided with an outer sleeve inner ring 7021, the front end ring of the inner wall of the outer sleeve 702 is provided with an outer sleeve bulge 7022, the outer sleeve bulge 7022 is of a convex ring structure, the outer wall of the rear end of the main perfusion pipe 1 is provided with a main perfusion pipe bulge 101, the main perfusion pipe bulge 101 is clamped with the outer sleeve bulge 7022, so that the rear end of the main pouring pipe 1 is clamped between the outer sleeve 702 and the outer sleeve inner ring 7021, the pipe wall at the front end of the inner sleeve 701 is annularly provided with a plurality of cracks, the pipe wall at the front end of the inner sleeve 701 forms a circle of mutually spaced blades 7013, each blade 7013 is provided with a first inner sleeve outer bulge 7011, the outer wall at the rear end of the inner sleeve 701 is provided with a second inner sleeve outer bulge 7012, the second inner sleeve outer bulge 7012 is of a convex ring structure, the outer sleeve inner ring 7021 is sleeved outside the inner sleeve 701, and is clamped between the first inner sleeve outer protrusion 7011 and the second inner sleeve outer protrusion 7012. Fill and be responsible for 1 rear end and for expanding the form outward, fill the rear end of being responsible for 1 through-hole and be the shoulder hole structure, set up sealing washer 8 between the pore wall of shoulder hole structure and the outer wall that attracts to be responsible for 4 front ends, the front end and the sealing washer 8 of endotheca 701 offset, make the utility model discloses a leakproofness is better. In addition, the inner wall of the rear end of the main irrigation pipe 1 is clamped with the outer sleeve inner ring 7021 through a protruding structure, a group of inner sleeve inner protrusions 7014 is annularly arranged on the inner wall of the inner sleeve 701, when the main suction pipe 4 is inserted into the inner sleeve 701, the inner sleeve inner protrusions 7014 can achieve interference fit between the main suction pipe 4 and the inner sleeve 701, and the main suction pipe 4 and the inner sleeve 701 can be easily assembled and disassembled.

As a further optimization of the main pouring pipe, a main pouring pipe retaining shoulder 102 is arranged on the outer wall of the rear end of the main pouring pipe 1, the main pouring pipe retaining shoulder 102 is located at the front end of the main pouring pipe protrusion 101, and the front end of the outer sleeve 702 abuts against the main pouring pipe retaining shoulder 102. The structure is convenient for limiting and connecting.

As a further optimization of the main suction pipe, the main suction pipe 4 is provided with an air pressure valve 9, the air pressure valve 9 is preferably a duckbill valve, the duckbill valve comprises an external valve body and an internal valve core, and the duckbill valve is of a known structure and is provided with an exhaust hole which is gradually narrowed, so that only exhaust can be performed, and air cannot be introduced. The duckbill valve is used for pressure relief, so that the operation process is smoother.

As a further optimization of the main suction pipe, a sealing cover 11 is arranged at the rear end of the main suction pipe 4, and the sealing cover 11 is provided with a small hole for the nephroscope to penetrate.

As a further optimization of the outer sheath, said outer sheath 2 is a tear-open sheath, which is a known technique, and has tear-open handles at both ends, the purpose of arranging the outer sheath 2 as a tear-open sheath is to facilitate its removal from the body at the end of the operation.

As further optimization of the connecting structure of the outer sheath and the perfusion main pipe: the outer sheath 2 is connected with the main pouring pipe 1 through a locking sealing sleeve 10, the front end of the locking sealing sleeve 10 is in interference fit with the rear end of the main pouring pipe 1, and the rear end of the locking sealing sleeve 10 is in interference fit with the rear end of the outer sheath 2. The locking sealing sleeve 10 is connected with the pouring main pipe 1 through interference fit in the outer sheath 2, is disassembled and assembled, and can play a good sealing effect.

As the utility model discloses a further optimization: the main filling pipe 1 and the branch filling pipe 3 are of an integral injection molding structure, and the main suction pipe 2 and the branch suction pipe 5 are of an integral injection molding structure.

In particular, all the components of the present invention are of plastic construction.

The utility model discloses a coupling assembling is when the equipment, earlier pour into the overcoat 702 card cover on being responsible for 1, then insert endotheca 701 toward the downthehole interior shrink of overcoat inner ring 7021, the front end blade 7013 of endotheca 701 constitutes a breach structure similar to the chrysanthemum, when inserting, the front end of endotheca 701 can slight internal contraction gather together, after the front end of endotheca 701 passes overcoat inner ring 7021's hole, the front end of endotheca 701 will expand automatically again, make endotheca 701 and overcoat 702 tightly be connected, and insert more tightly more, will attract again to be responsible for 4 and insert endotheca 701, also can assemble overcoat 702 and endotheca 701 earlier, again with coupling assembling 7 integral erection to pour into be responsible for 1, will attract at last to be responsible for 4 and insert endotheca 701.

The utility model discloses when using in the percutaneous nephrolithotomy of wicresoft: firstly, an expansion tube is arranged on a perfusion sheath component, the expansion tube enters a human body, then the expansion tube is pulled out from the perfusion sheath after entering the human body, then a suction sheath component is arranged on the perfusion sheath component through a connecting component 7 to form a combined sheath for use, a perfusion branch tube 3 of the perfusion sheath component is connected with a known perfusion water source, a suction branch tube 6 of the suction sheath component is connected with a known perfusion suction source, then an endoscope is placed in an operation position of the human body through the combined sheath, holmium laser is used for polishing stones, meanwhile, the perfusion branch tube 3 is supplied with water, the water flows to the operation position through an outer channel 201, after stones are smashed, the water and stones are sucked out from an inner channel 501 through the suction branch tube 6 through the perfusion suction source, after the stones are taken out, the perfusion tube 1 is pulled out from an outer sheath 2, the suction sheath component and other components of the perfusion sheath component are communicated and taken down, only the outer sheath 2 is left at the operation part, finally, the sheath 2 is torn off and taken down, only the drainage tube is reserved, and the operation is finished.

Except that can replace the clear stone sheath of attraction among the clear stone system of tradition, attract the valve body to be applied to the percutaneous nephrolithotomy of wicresoft, the utility model discloses still can unpack apart exclusive use, if fill the sheath and can regard as wicresoft's expansion drainage external member to use with the expansion tube cooperation, attract the sheath to regard as ureter guide sheath to use. And the utility model discloses a fill sheath subassembly and attract sheath subassembly and can provide multiple size specification, choose collocation again during the use. Furthermore, because the utility model provides a fill sheath subassembly and attract sheath subassembly structure approximate, both can exchange the position around, still can link to each other through coupling assembling, fill the sheath subassembly and be used for the negative pressure to attract, attract the sheath subassembly to be used for filling the water supply.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a percutaneous kidney perfusion attracts tears combination sheath open, its characterized in that includes fills sheath subassembly and attracts the sheath subassembly, it includes fills main pipe (1) to fill the sheath subassembly, outer sheath (2) and the branch pipe (3) of filling that set up in filling main pipe (1) lateral part with filling main pipe (1) grafting cooperation, attract the sheath subassembly including attract main pipe (4), with attract main pipe (4) grafting cooperation inner sheath (5) and set up in attracting branch pipe (6) of being responsible for (4) lateral part, the rear end of filling main pipe (1) is connected through coupling assembling (7) with the front end of attracting main pipe (4), inner sheath (5) are located outer sheath (2), inner sheath (5) inside have with attract main pipe (4) intercommunication inner channel (501), form between inner sheath (5) and outer sheath (2) with fill outer channel (201) that branch pipe (3) communicate.

2. The percutaneous renal perfusion attraction-tearing combined sheath is characterized in that the connecting assembly (7) comprises an inner sleeve (701) sleeved on the front end of the main suction pipe (4) and an outer sleeve (702) sleeved on the rear end of the main perfusion pipe (1), the front end of the main suction pipe (4) is inserted into the rear end of the main perfusion pipe (1), the rear end of the main perfusion pipe (1) is clamped between the inner sleeve (701) and the outer sleeve (702), and the inner sleeve (701) is clamped with the rear end of the outer sleeve (702).

3. The percutaneous renal perfusion attraction tear-off combined sheath according to claim 2, wherein the inner side of the rear end of the outer sleeve (702) is provided with an outer sleeve inner ring (7021), the rear end of the perfusion main tube (1) is clamped between the outer sleeve (702) and the outer sleeve inner ring (7021), the outer wall of the front end of the inner sleeve (701) is provided with a first inner sleeve outer protrusion (7011), the outer wall of the rear end of the inner sleeve (701) is provided with a second inner sleeve outer protrusion (7012), and the outer sleeve inner ring (7021) is sleeved outside the inner sleeve (701) and clamped between the first inner sleeve outer protrusion (7011) and the second inner sleeve outer protrusion (7012).

4. The percutaneous renal perfusion suction tearing combined sheath according to claim 3, wherein the rear end of the through hole of the perfusion main pipe (1) is of a stepped hole structure, a sealing ring (8) is arranged between the hole wall of the stepped hole structure and the outer wall of the front end of the suction main pipe (4), and the front end of the inner sleeve (701) is abutted against the sealing ring (8).

5. The percutaneous renal perfusion attraction tear-off combined sheath is characterized in that the outer wall of the rear end of the perfusion main tube (1) is provided with a perfusion main tube protrusion (101), the front end of the inner wall of the outer sleeve (702) is provided with an outer sleeve protrusion (7022), and the perfusion main tube protrusion (101) is clamped with the outer sleeve protrusion (7022).

6. The percutaneous renal perfusion suction tearing combined sheath as claimed in claim 3, wherein the front tube wall of the inner sleeve (701) is annularly provided with a plurality of slits, so that the front tube wall of the inner sleeve (701) forms a circle of mutually spaced blades (7013), and the first inner sleeve outer protrusion (7011) is arranged on the outer wall of the blades (7013).

7. The percutaneous renal perfusion suction tear-off combined sheath according to any one of claims 1 to 6, wherein the main suction pipe (4) is provided with a pneumatic valve (9).

8. A percutaneous renal perfusion attraction tear-away compound sheath as claimed in claim 7, characterised in that the pneumatic valve (9) is a duck bill valve.

9. A percutaneous renal perfusion attraction tear-off combination sheath according to any one of claims 1 to 6, wherein the outer sheath (2) is a tear-off sheath.

10. The percutaneous kidney perfusion attraction tear-off combined sheath according to any one of claims 1 to 6, characterized in that the outer sheath (2) is connected with the perfusion main pipe (1) through a locking sealing sleeve (10), the front end of the locking sealing sleeve (10) is in interference fit with the rear end of the perfusion main pipe (1), and the rear end of the locking sealing sleeve (10) is in interference fit with the rear end of the outer sheath (2).

11. The percutaneous renal perfusion suction tear-off combined sheath is characterized in that the rear end of the inner sheath (5) is fixedly connected with the front end of the suction main pipe (4); the rear end of the main suction pipe (4) is provided with a sealing cover (11).