CN112869833A

CN112869833A - Visual puncture outfit

Info

Publication number: CN112869833A
Application number: CN201911202313.4A
Authority: CN
Inventors: 彭玉平; 汪郁卉; 李午阳; 史超; 聂长宁
Original assignee: Shenzhen Qingyuan Medical Instrument Co ltd
Current assignee: Shenzhen Qingyuan Medical Instrument Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2021-06-01

Abstract

The visual puncture outfit is characterized in that an endoscope and a guide sheath head assembly are arranged, so that a guide rod of the guide sheath head assembly can penetrate through a working channel of the endoscope, a guide sheath head connected with the guide rod is arranged on the outer side of the guide sheath head assembly, the position of one end of the endoscope can be limited through the guide sheath head, and then a fixing clamp is arranged at the other end of the endoscope, so that the endoscope can be fixed on the guide sheath head assembly; and then the combination of the sheath guiding head component and the endoscope is arranged in the puncture channel of the puncture component, the sheath opening is blocked by the sheath guiding head, so that blood or other body fluid can be prevented from flowing into the sheath opening, and the locking seat is arranged, so that the combination of the sheath guiding head component and the endoscope can be fixed in the puncture channel. The medical endoscope can assist a doctor to perform high-precision visual puncture, and the operation is completed through an operation channel as small as possible, so that the risk of a patient is reduced.

Description

Visual puncture outfit

Technical Field

The application belongs to the technical field of medical instrument, especially, relate to a visual puncture ware.

Background

At present, the operation modes of hypertensive cerebral hemorrhage mainly comprise drilling drainage, microscopic hematoma removal and endoscopic external hematoma removal. For the occupied lesion of deep brain tumor, cortex and subcortical brain tissue need to be cut to reach the deep lesion part, and in the process of cutting the brain tissue, the whole process of non-visual operation often needs to draw the normal brain tissue, the brain tissue and the injury and hematoma formation of adjacent blood vessels or nerves are easily caused, if the condition of blood vessel malformation can cause acute sudden conditions such as intracranial hemorrhage and the like, complications such as nerve function defect, cognitive disorder and the like can be caused, the puncture process is completely operated according to the personal experience of a specialist, and the occurrence of channel building deviation, channel instability and even accidental injury of the surrounding normal brain tissue and blood vessels can be caused. The whole operation process still has a great degree of iatrogenic damage to brain tissues. The existing brain surgery mode adopts a balloon to retract brain tissue or uses a brain pressing plate to isolate the brain tissue, which is a non-visible puncture mode and increases puncture risks.

Disclosure of Invention

The utility model provides a visual puncture ware aims at solving the puncture process that adopts among the brain surgery among the prior art and is the invisible puncture, has the technical problem of puncture risk to the disease.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a visual puncture instrument, comprising:

an endoscope having a working channel therethrough;

the sheath head assembly comprises a guide rod penetrating through the working channel, a sheath head connected with the end part of the guide rod and a fixing clamp arranged on the guide rod, and the fixing clamp and the sheath head are respectively positioned on the outer sides of openings at two sides of the working channel;

puncture assembly, including sheath pipe, locking seat and puncture channel, locking seat with the connection can be dismantled to the endoscope, sheath pipe one end with locking seat links to each other, the other end have with the sheath pipe opening of puncture channel intercommunication, puncture channel runs through the sheath pipe with locking seat, the endoscope peg graft in the puncture channel, lead the shutoff of sheath head sheath pipe opening extends to outside the sheath pipe opening.

Further, the diameter of the end part of the sheath tube on the side of the sheath tube opening is gradually reduced from the locking seat to the direction of the sheath tube opening.

Further, the endoscope comprises a control part and an insertion tube, and the insertion tube is detachably connected with the locking seat.

Furthermore, the outer surface of the end part of the sheath guiding head is a circular arc surface.

Further, the curvature of the sheath head is the same as the curvature of the sheath opening.

Further, the locking seat includes unable adjustment base, by unable adjustment base extends the chuck that forms to and lock nut, the chuck includes a plurality of windings the splint that puncture passageway set up, the outside of splint all be equipped with the external screw thread that lock nut corresponds, lock nut can with splint locking and orientation puncture passageway shrink.

Furthermore, the locking seat comprises a fixed base, a sliding block and a pressing piece on the base, the base and the sliding block are enclosed to form the puncture channel, and the pressing piece can rotate to enable the sliding block to retract towards the inside of the puncture channel.

Furthermore, a first elastic piece extending towards the direction of the fixed base is arranged on the sliding block, and the first elastic piece presses the endoscope.

Furthermore, a first puncture groove is formed in the fixed base, a second puncture groove is formed in the sliding block, a sliding block blocking piece covering the fixed base is arranged on the sliding block in an extending mode towards the direction of the fixed base, and the sliding block blocking piece is an elastic sliding block blocking piece.

Furthermore, a second elastic piece extending towards the direction of the sliding block is arranged on the fixed base, and the second elastic piece is located between the sliding blocks of the fixed base and located on the outer side of the puncture channel.

The beneficial effect of this application: according to the visual puncture outfit, the endoscope and the sheath head assembly are arranged, so that a guide rod of the sheath head assembly can penetrate through a working channel of the endoscope, the sheath head connected with the guide rod is arranged on the outer side, one end of the endoscope can be limited through the sheath head, and the endoscope can be fixed on the sheath head assembly by arranging the fixing clamp at the other end of the endoscope; through setting up puncture assembly again, install the combination of guide sheath head subassembly and endoscope in puncture assembly's puncture channel to block up the sheath pipe opening through the guide sheath head, just can prevent that blood or other body fluids from flowing into from the sheath pipe opening, and then influence the detection quality of endoscope, and be provided with the locking seat, make the combination of guide sheath head subassembly and endoscope can be fixed in this puncture channel. Specifically, when a puncture operation needs to be performed on a patient, the endoscope needs to be mounted on the sheath head assembly first, so that the position of the endoscope is fixed, the sheath head assembly and the endoscope are mounted and fixed on the puncture assembly in a combined manner, the sheath tube opening reaches the lesion area of the patient, and then the locking seat and the endoscope are detached, so that a doctor can use a medical instrument to treat the lesion area of the patient from the sheath tube opening. Therefore, the endoscope provides a puncture visual field in real time, assists a doctor in performing high-precision visual puncture, and completes an operation through an operation channel as small as possible, so that the damage of the operation process to the normal brain tissue of a patient is reduced, the recovery period can be shortened, the period of pain of the patient is effectively reduced, and the life quality of the patient is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural view of an endoscope and sheath head assembly provided in accordance with an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a visual puncture outfit provided in an embodiment of the present application;

fig. 3 is a first schematic view illustrating the use of a visual puncture outfit provided in the first embodiment of the present application;

fig. 4 is a schematic use diagram of a visual puncture outfit provided in the first embodiment of the present application;

fig. 5 is a schematic structural diagram of a sheath head according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a chuck according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a fixing base according to an embodiment of the present application;

fig. 8 is a schematic structural view of a fixing base according to a second embodiment of the present application;

fig. 9 is a schematic structural view of a fixing base according to a third embodiment of the present application;

fig. 10 is a schematic structural diagram of a fixing base according to a fourth embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

10-endoscope; 11-a working channel; 12-a control section;

13-an insertion tube;

20-a sheath head assembly; 21-a guide rod; 22-a sheath head;

23, a fixing clamp;

30-a puncture assembly; 31-sheath; 32-a locking seat;

321-a fixed base; 322-a collet; 323-lock nut;

3221-splint; 3211 — a first penetration groove;

324-a slider; 325-pressing piece; 326 — a first resilient member;

327 — a second elastic member; 3241 — second puncture groove; 3242-slider stop;

33-a puncture channel; 34-sheath opening.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-10 are exemplary and intended to be used to illustrate the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Example one

As shown in fig. 1 to 7, an embodiment of the present application provides a visual puncture outfit, including: the endoscope, the puncture assembly 30 and the sheath guide head assembly 20, the endoscope is provided with a working channel 11 penetrating through the endoscope, and particularly, the endoscope can be a flexible endoscope for meeting the actual use requirement, namely, realizing endoscopic detection on the basis of not losing new damage caused by patients; the sheath head assembly 20 comprises a guide rod 21 penetrating through the working channel 11, a sheath head 22 connected with the end part of the guide rod 21 and a fixing clamp 23 arranged on the guide rod 21, the fixing clamp 23 and the sheath head 22 are respectively positioned at the outer sides of openings at two sides of the working channel 11, the sheath head 22 is detachably connected with the guide rod 21, so that after the guide rod 21 penetrates through the working channel 11, the sheath head 22 is installed on the guide rod 21, the position of the endoscope is fixed, and the fixing clamp 23 is detachably connected in a mode of fixing the endoscope; the puncture assembly 30 comprises a sheath tube 31 and a locking seat 32 arranged at one end of the sheath tube 31, the puncture assembly 30 is provided with a puncture channel 33 penetrating through the sheath tube 31 and the locking seat 32, the other end of the sheath tube 31 is provided with a sheath tube opening 34 communicated with the puncture channel 33, the endoscope is inserted into the puncture channel 33, the sheath head 22 partially extends out of the sheath tube opening 34 and blocks the sheath tube opening 34, the locking seat 32 is detachably connected with the endoscope, and the sheath tube 31 is a transparent sheath tube 31.

The visual puncture outfit of the embodiment of the application has the advantages that the guide rod 21 of the sheath guide head assembly 20 can penetrate through the working channel 11 of the endoscope by arranging the endoscope and the sheath guide head assembly 20, the sheath guide head 22 connected with the guide rod 21 is arranged on the outer side, so that the position of one end of the endoscope can be limited by the sheath guide head 22, and the endoscope can be fixed on the sheath guide head assembly 20 by arranging the fixing clamp 23 on the other end of the endoscope; the puncture assembly 30 is arranged, the combination of the sheath guide head assembly 20 and the endoscope is arranged in a puncture channel 33 of the puncture assembly 30, the sheath opening 34 is sealed by the sheath head 22, so that blood or other body fluid can be prevented from flowing in from the sheath opening 34, the detection quality of the endoscope is further influenced, and the locking seat 32 is arranged, so that the combination of the sheath guide head assembly 20 and the endoscope can be fixed in the puncture channel 33. Specifically, when a puncture operation needs to be performed on a patient, the endoscope needs to be mounted on the sheath guide head assembly 20 first, so that the position of the endoscope is fixed, the combination of the sheath guide head assembly 20 and the endoscope is mounted and fixed on the puncture assembly 30, so that the sheath opening 34 reaches the lesion area of the patient, and then the locking seat 32 and the endoscope are detached, so that a doctor can use a medical instrument to treat the lesion area of the patient from the sheath opening 34. Therefore, the endoscope provides a puncture visual field in real time, assists a doctor in performing high-precision visual puncture, and completes an operation through an operation channel as small as possible, so that the damage of the operation process to the normal brain tissue of a patient is reduced, the recovery period can be shortened, the period of pain of the patient is effectively reduced, and the life quality of the patient is improved.

Further, as shown in fig. 5, in the present embodiment, the diameter of the end portion of the sheath opening 34 of the sheath 31 is gradually reduced toward the sheath opening 34 by the locking seat 32. Set up to reduce gradually through the diameter with sheath pipe opening 34 department for can effectively ensure to lead sheath head 22 and can effectively block up sheath pipe opening 34, prevent to permeate to the inside pollution endoscope of sheath head 22 along the gap between sheath pipe opening 34 and the sheath head 22 at puncture in-process blood, avoid puncture in-process visual field unclear.

Further, as shown in fig. 1 to 2, in the present embodiment, the endoscope includes a control portion 12 and an insertion tube 13, and the insertion tube 13 is detachably connected to the locking seat 32. By arranging the endoscope as the control part 12 and the insertion tube 13, on one hand, the endoscope is flexible, and the hand holding the insertion tube 13 can cause the endoscope to be fuzzy or pollute the endoscope, thereby affecting the effect of the puncture operation; on the other hand, insertion of the guide rod 21 from the control section 12 and attachment of the endoscope to the sheath head assembly 20 can be facilitated.

Further, as shown in fig. 1 to 2 or 5, in the present embodiment, the outer surface of the end portion of the sheath head 22 is a circular arc surface. By arranging the outer surface of the end of the sheath head 22 as a circular arc surface, on one hand, the sheath head 22 is convenient to block the sheath opening 34; on the other hand, the smooth transition between the extending part of the sheath head 22 and the sheath tube 31 is ensured, the condition that the normal brain tissue is damaged by pulling, squeezing and the like when the combination of the sheath head assembly 20 and the endoscope is taken out is ensured, and the operation safety is effectively ensured.

Further, as shown in fig. 5, in the present embodiment, the curvature of the introducer sheath 22 is the same as the curvature at the sheath opening 34. The curvature is the rotation rate of the tangential angle to the arc length for a certain point on the curve, and is defined by differentiation, and shows the degree of deviation of the curve from a straight line. For a curve, it is equal to the radius of the arc of the circle closest to the curve at that point. Specifically, when the sheath head 22 partially protrudes out of the sheath opening 34 and blocks the sheath opening 34, the sheath head 22 is completely embedded in one end of the sheath opening 34 of the sheath 31, and the sheath head 22 and the sheath 31 are completely attached to each other, so that the blocking effect between the sheath head 22 and the sheath opening 34 is better, blood is further prevented from entering the sheath 31, and the operation quality of a patient is further ensured.

Further, as shown in fig. 6 to 7, in the present embodiment, the locking seat 32 includes a fixing base 321, a collet 322 formed by extending the fixing base 321, and a locking nut 323, the collet 322 includes a plurality of clamping plates 3221 disposed around the puncture channel 33, the outer sides of the clamping plates 3221 are respectively provided with an external thread corresponding to the locking nut 323, and the locking nut 323 can lock the clamping plates 3221 and contract toward the puncture channel 33. By arranging the fixing base 321 and the collet 322, specifically, the diameter of the puncture channel 33 enclosed by the collet 322 is slightly larger than that of the endoscope, when the locking nut 323 and the collet 322 are correspondingly locked, along with the rotation of the locking nut 323, the plurality of clamping plates 3221 can be compressed to shrink towards the inside of the puncture channel 33, so that the diameter of the collet 322 is gradually smaller than that of the puncture channel 33, thus, the diameter of the collet 322 can be adjusted by controlling the locking nut 323, and the endoscope can be fixed by the plurality of clamping plates 3221. Optionally, the diameter of the puncture channel 33 in the fixing base 321 is 40mm, so that the diameter of the clamped sheath 31 can be regulated and controlled within more than 0mm and less than 30mm, and the size of the endoscope adjustably disposed in the sheath 31 can be selected within more than 0mm and less than 30mm, thereby meeting different use requirements.

Example two

In the present embodiment, the endoscope and the sheath guide head assembly 20 are the same as those in the first embodiment, and the sheath 31 in the puncture assembly 30 is also the same as that in the first embodiment, and only the structure of the locking seat 32 is different, as shown in fig. 8, in the present embodiment, the locking seat 32 includes a fixed base 321, a slider 324 and a pressing member 325 on the base, the base and the slider 324 enclose to form the puncture channel 33, and the pressing member 325 can rotate to retract the slider 324 into the puncture channel 33. Specifically, the sliding block 324 and the fixing base 321 enclose to form the puncture channel 33, and a gap is formed between the sliding block 324 and the fixing base 321, so that the sliding block 324 can move in the direction of the fixing base 321, and thus, the diameter of the puncture channel 33 can be reduced by the pressing member 325, and the sliding block 324 penetrating the puncture channel 33 can press the endoscope by the sliding block 324, so that the endoscope can be relatively fixed with the locking base 32. Specifically, the pressing member 325 can be fixed when the slide block 324 is connected to the endoscope in a squeezing manner, that is, the position of the pressing member 325 can be maintained, and the endoscope is continuously fixed by the pressing member 325, alternatively, the pressing member 325 can be rotated to maintain the position of the pressing member 325 when rotated to a fixed angle, or the pressing member 325 can be screw-locking type, that is, by providing a screw corresponding to the screw-locking type pressing member 325 on the locking seat 32 and abutting the pressing member 325 against the slide block 324, whether the pressing member 325 fixes the endoscope can be controlled by adjusting the position of the screw-locking type pressing member 325. Of course, the pressing member 325 may be other structures capable of fixing the slider 324 at a specific position, and is not limited herein.

Further, as shown in fig. 8, in the present embodiment, the slider 324 is provided with a first elastic member 326 extending toward the inside of the puncture channel 33, and the first elastic member 326 is pressed against the endoscope. Optionally, the first elastic element 326 is a spring, and the arc top of the spring contacts the endoscope, so as to prevent the endoscope from being scratched by the spring when the endoscope is inserted into or taken out of the puncture channel 33. The sliding block 324 is a concave semicircular arc structure, elastic sheets are arranged on two sides, the fixed base 321 and the sliding block 324 enclose to form a puncture channel 33, in an initial working state, the pressing piece 325 and the sliding block 324 are not contacted, the elastic sheets on the sliding block 324 are in an interference state to ensure that the sliding block 324 is not loosened, the diameter of the puncture channel 33 is larger than that of an endoscope, after the endoscope penetrates into the puncture channel 33 from top to bottom, the circular structure formed by the sliding block 324 and the two semicircular arcs of the fixed base surrounds the endoscope, when the pressing piece 325 is contacted with the sliding block 324, the sliding block 324 is squeezed to move radially inwards, the diameter of the puncture channel 33 formed by the enclosing of the sliding block 324 and the fixed base 321 is smaller than that of the endoscope, the endoscope is clamped and then starts to puncture brain tissue, after the puncture is finished, the pressing piece 325 is upwards pushed, the sliding block 324 rebounds to the initial state under the action, the puncture channel 33 is ensured to be larger than the diameter of the endoscope, so that the endoscope and the sheath guide head assembly 20 can be smoothly withdrawn.

Alternatively, the first elastic element 326 may be a high polymer elastic material, and specifically, the first elastic element is only an elastic material that can press the endoscope and restore the slide block 324 to the initial position, which is not limited herein.

EXAMPLE III

In the present embodiment, the endoscope and the sheath guiding head assembly 20 are the same as those in the first embodiment, and the sheath 31 of the puncturing assembly 30 is also the same as that in the first embodiment, only the structure of the locking seat 32 is different, and the pressing member 325 of the locking seat 32 in the present embodiment is the same as that in the first embodiment, and therefore, the description thereof is omitted. As shown in fig. 9, further, as shown in fig. 1, in the present embodiment, the fixing base 321 is provided with a first puncturing groove 3211, the sliding block 324 is provided with a second puncturing groove 3241, the sliding block 324 extends toward the fixing base 321 to be provided with a sliding block stopper 3242 covering the fixing base 321, and the sliding block stopper 3242 is an elastic stopper. Specifically, the slider 324 forms a "Y" type structure, when the slider 324 is acted by a force from outside to the center, the slider 324 moves inwards, the angles of the two slider stoppers 3242 of the slider 324 are increased, the diameter of the puncture channel 33 formed by the second puncture groove 3241 of the slider 324 and the first puncture groove 3211 of the fixed base surrounding is gradually reduced to be smaller than the diameter of the endoscope, so as to clamp the endoscope, when the force of the slider 324 is released, the slider 324 is deformed by restoring itself, the angles of the two slider stoppers 3242 are reduced, the radial direction moves outwards from the center, and the diameter of the puncture channel 33 formed by the second puncture groove 3241 of the slider 324 and the first puncture groove 3211 of the fixed base surrounding is larger than the diameter of the endoscope, so as to achieve the separation effect.

Example four

In the present embodiment, the endoscope and the sheath guiding head assembly 20 are the same as those in the first embodiment, and the sheath 31 of the puncturing assembly 30 is also the same as that in the first embodiment, only the structure of the locking seat 32 is different, and the pressing member 325 of the locking seat 32 in the present embodiment is the same as that in the first embodiment, and therefore, the description thereof is omitted. Further, as shown in fig. 10, in the present embodiment, the fixing base 321 is provided with a second elastic element 327 extending toward the sliding block 324, and the second elastic element 327 is located between the sliding block 324 and the fixing base 321 and outside the puncture channel 33. Specifically, when the slide block 324 is acted by a radial central force, the second elastic member 327 is compressed and the endoscope is clamped by the slide block 324, and when the external force is released, the second elastic member 327 releases elastic potential energy to push the slide block 324 to depart from the center, thereby ensuring that the endoscope and the sheath guiding head 22 can exit smoothly.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims

1. A visual puncture instrument, comprising:

an endoscope having a working channel therethrough;

2. The visual puncture instrument according to claim 1, wherein: the diameter of the end part of the sheath tube at one side of the sheath tube opening is gradually reduced from the locking seat to the direction of the sheath tube opening.

3. The visual puncture instrument according to claim 1, wherein: the endoscope comprises a control part and an insertion tube, wherein the insertion tube is detachably connected with the locking seat.

4. The visual puncture instrument according to claim 2, wherein: the outer surface of the end part of the sheath guiding head is an arc surface.

5. The visual puncture instrument according to claim 4, wherein: the curvature of the sheath guiding head is the same as that of the opening of the sheath tube.

6. The visual puncture instrument according to claim 1, wherein: locking seat includes unable adjustment base, by unable adjustment base extends the chuck that forms to and lock nut, the chuck includes a plurality of winds the splint that puncture passageway set up, the outside of splint all be equipped with the external screw thread that lock nut corresponds, lock nut can with splint locking and orientation puncture passageway shrink.

7. The visual puncture instrument according to claim 1, wherein: the locking seat comprises a fixed base, a sliding block and a pressing piece on the base, the base and the sliding block are enclosed to form the puncture channel, and the pressing piece can rotate to enable the sliding block to retract towards the inside of the puncture channel.

8. The visual puncture instrument according to claim 7, wherein: the sliding block is provided with a first elastic piece extending towards the direction of the fixed base, and the first elastic piece presses the endoscope.

9. The visual puncture instrument according to claim 7, wherein: the fixed base is provided with a first puncture groove, the sliding block is provided with a second puncture groove, the sliding block extends towards the direction of the fixed base and is provided with a sliding block stopper covering the fixed base, and the sliding block stopper is an elastic sliding block stopper.

10. The visual puncture instrument according to claim 7, wherein: the fixed base is provided with a second elastic piece extending towards the direction of the sliding block, and the second elastic piece is positioned between the sliding blocks and outside the puncture channel.