CN219557478U - Aneurysm clamp - Google Patents

Abstract

The utility model belongs to the technical field of surgical instruments, and particularly relates to an aneurysm clamp, which comprises an inner core, an inner sleeve, an outer sleeve, a linkage mechanism, a right piece, a left piece and a reed, wherein the reed is arranged between the right piece and the left piece; the main part of inner core is an elongated pole, and the head end of elongated pole is equipped with a pair of elastic clamping plate that can open and shut, and the head end of interior sleeve pipe is equipped with a tubaeform flat external member, and when left side piece and right side piece were kneaded, the accessible link gear drove interior sleeve pipe axial forward, makes a pair of elastic clamping plate rear portion shrink in flat external member and produces the centre gripping action. The clamp head can rotate by 360 degrees, can be replaced, can limit the clamping force of the clamp head, and has a self-locking function. The rod part is of a tubular design, occupies small space, can better expose the operation visual field, and is more suitable for minimally invasive surgery.

Description

Aneurysm clamp

Technical Field

The utility model relates to an aneurysm clamp, and belongs to the technical field of surgical instruments.

Background

When performing neurosurgery aneurysm operation, need press from both sides and get aneurysm clamp operation, just need use the centre gripping apparatus at this moment, current aneurysm operation pincers front end adopts articulated joint structure, and the neck width of opening and shutting is approximately between 5 ~ 9.5mm, blocks the operation field of vision easily, in addition, if press from both sides with current operation pincers and get, because the dynamics is difficult to master, is easy to press from both sides the aneurysm broken to the jaw opening and shutting scale of operation pincers is great, makes minimally invasive operation unable normal clear.

In addition, the existing aneurysm clamp has single function and simple structure, can not realize the functions of 360-degree rotation, clamp head replacement, self-locking and the like, and is capable of facing to aneurysm clamps of different positions and different sizes, proper aneurysm clamps are required to be selected for operation, medical staff needs to operate the aneurysm clamps in the most hope of facing to operations under different conditions by using one instrument, the requirements on the aneurysm clamps become very high, and the existing aneurysm clamps can not realize the functions on one instrument, so that the existing aneurysm clamps are urgently required to be capable of 360-degree rotation, clamp head replacement, clamp head clamping force limiting and aneurysm clamps with self-locking functions to meet the existing requirements.

Disclosure of Invention

According to the defects in the prior art, the technical problems to be solved by the utility model are as follows: an aneurysm clamp for neurosurgery (craniocerebral surgery) is provided to solve the above-mentioned problems.

The aneurysm clamp comprises an inner core, an inner sleeve, an outer sleeve, a linkage mechanism, a right piece, a left piece and a reed, wherein the reed is arranged between the right piece and the left piece; the main part of inner core is an elongated pole, and the head end of elongated pole is equipped with a pair of elastic clamping plate that can open and shut, and the head end of interior sleeve pipe is equipped with a tubaeform flat external member, and when left side piece and right side piece were kneaded, the accessible link gear drove interior sleeve pipe axial forward, makes a pair of elastic clamping plate rear portion shrink in flat external member and produces the centre gripping action.

The linkage mechanism comprises a middle pipe, the middle pipe is fixed in a locking clamping groove at the rear part of the inner sleeve, a fixed block at the bottom of the middle pipe is arranged in a square groove formed in the outer sleeve in a sliding mode, and the fixed block is connected with the left piece and the right piece through a left hinge plate and a right hinge plate respectively.

Preferably, the linkage mechanism is provided with a stroke limiting mechanism, the stroke limiting mechanism comprises a front wire stop arranged on the front fixing block and a rear wire stop arranged on the rear fixing block, the front wire stop and the rear wire stop are positioned on the front side and the rear side of the fixing block, and the front fixing block and the rear fixing block are fixedly connected with the outer sleeve.

The inner core is fixed in the sleeve through an inner core limiting mechanism and can be disassembled, the inner core limiting mechanism comprises a pulling cap positioned at the rear of the outer sleeve, a jacking pin fixedly connected with the pulling cap is arranged in the outer sleeve, the head end of the jacking pin is a conical head, a retainer ring is arranged on the jacking pin, and a spring is arranged between the retainer ring and the tail part of the outer sleeve; under the action of the spring, the conical head is propped into the U-shaped groove at the tail end of the inner core to prop open the U-shaped groove, and the annular clamping groove on the inner core is clamped on the fixed stop block on the inner wall of the outer sleeve.

Preferably, the rear end face of the outer sleeve is provided with an upper clamping groove and a lower clamping groove, the upper clamping groove is longer than the lower clamping groove, when the spring is in a natural state, the pull cap is tightly attached to the rear end face of the outer sleeve, and a flange on the pull cap is clamped into the upper clamping groove; the pull cap can circumferentially rotate, when the pull cap rotates 180 degrees, the spring is in a compressed state, the flange on the pull cap is clamped into the lower clamping groove, the conical head is separated from the U-shaped groove, and the inner core can be disassembled.

Preferably, the elastic clamping plate is tilted upwards or bent downwards, and the included angle between the elastic clamping plate and the horizontal direction is a degrees.

Preferably, the inner side surface of the elastic clamping plate is an arc surface, and the head end of the elastic clamping plate is provided with an angle groove.

Preferably, the side view angles of the left and right sheets are gun-shaped, and the thickness directions of the left and right sheets are Z-shaped.

Preferably, a self-locking mechanism is arranged between the left piece and the right piece, and comprises a male hook arranged on the right piece and a female hook arranged on the left piece.

The male hook is connected with a boss of the locking button through a column body, the boss is located on the outer side of the right piece, the column body penetrates through the right piece, and when the locking button is pressed down through kneading of the left piece and the right piece, the male hook and the female hook are locked.

Compared with the prior art, the utility model has the following beneficial effects:

1. when kneading left side piece, right side piece, flat external member on the interior sleeve pipe can spacing elastic clamp plate and closed elastic clamp plate, ensures that the elastic clamp plate can be accurate press from both sides and get the aneurysm clamp.

2. The inner core and the inner sleeve can all realize 360-degree circumferential rotation, and the inner core and the inner sleeve are matched with the elastic clamping plate to have a certain angle, so that the aneurysm clamp in any direction can be clamped.

3. The pulling cap can circumferentially rotate by 360 degrees, when the pulling cap is pulled backwards and rotated by 180 degrees, the inner core can be separated from the constraint of the jacking pin, the inner core can be detached, and the inner core with different sizes can be replaced by the aneurysm clips with different sizes.

4. The left piece and the right piece are designed into gun-shaped structures, the diameter of the rod part is only 3.5mm, the occupied space is small, the shielding of the view under the lens is avoided, the surgical view can be better exposed, and the device is more suitable for minimally invasive surgery. The outside is equipped with long recess, better is fit for human engineering, and it is more comfortable to grasp, and thickness direction is the zigzag, has increased opening of left side piece, right side piece afterbody for the elastic clamping plate can the greater aneurysm clamp of centre gripping, and the centre gripping firmness is also better.

5. The cooperation is locked the button, can lock the elastic splint at any time, when normally kneading left side piece, right side piece, can not make the elastic splint be in locking state, when pressing down the button that locks, when kneading left side piece, right side piece, can make the male hook couple of right side piece on the female hook of left side piece to realize the locking of elastic splint, avoided bringing the burden for doctor's finger, through locking the button, can realize the autonomous locking function of elastic splint, avoid doctor's risk that the auto-lock brought when pressing from both sides many times effectively, ensured that doctor can independently convenient press from both sides the aneurysm clamp and get.

6. Through setting up preceding silk shelves and back silk shelves, can restrict the motion scope of elastic clamping plate, and then influence the size of clamping force, the effectual too big clamping force of avoiding appears unexpected when the centre gripping aneurysm presss from both sides, and through left hinge plate and the right hinge plate that set up, can make the inner tube order about the elastic component interlock that can be more smooth and easy to ensure that the safety presss from both sides the aneurysm and get.

Drawings

FIG. 1 is a schematic diagram of the front view of the present utility model;

FIG. 2 is a schematic rear view of the present utility model;

FIG. 3 is a schematic side elevational view of the present utility model;

FIG. 4 is a schematic perspective view of the present utility model;

FIG. 5 is a schematic view of the internal structure of the present utility model;

FIG. 6 is an enlarged view of a portion of the portion A of FIG. 5;

FIG. 7 is a schematic illustration of a linkage mechanism;

FIG. 8 is a schematic view of a spacing mechanism;

fig. 9 is a side view of the core;

fig. 10 is a front view of the core;

FIG. 11 is a perspective view of the inner core;

fig. 12 is a schematic structural view of the core front end elastic splint;

FIG. 13 is a schematic view of the rear U-shaped groove and annular clamping groove of the inner core;

FIG. 14 is a schematic structural view of the inner sleeve;

FIG. 15 is a schematic view of the structure of an alternative view of the inner sleeve;

fig. 16 is a schematic view of the structure of the locking button and male hook.

In the figure: an inner core-1; an inner sleeve-2; an outer sleeve-3; pulling a cap-4; locking button-5; male hook-6; right piece-7; female hook-8; left piece-9; reed-10; an elastic clamping plate-11; an angular groove-12; cambered surface-13; an elongated rod-14; long groove-15; u-shaped grooves 16; annular clamping grooves-17; flat sleeve member-18; flower of pedicel-19; a cross-shaped clamping groove-20; a locking clamping groove-21; a middle tube-22; a fixed block-23; a threaded hole-24; a knock-up pin-25; spring-26; a retainer ring-27; conical head-28; a fixed stop-29; an upper clamping groove-30; a lower clamping groove-31; an oil filling port-32; square grooves-33; a front fixed block-34; a rear fixed block-35; front wire gear-36; rear silk stopper-37; left square groove-38; right square groove-39; a through hole-40; double-row left square grooves-41; a left hinge plate fixed block-42; left fixed block square groove-43; left hinge plate-44; double rows of right square grooves-45; a right hinge plate fixed block-46; right fixed block square groove-47; right hinge plate-48; threaded pin shaft-49; long grooves-50; reed fixing grooves-51; column-52; boss-53; male hook arm I-54; male hook arm II-55; male hook arm III-56.

Detailed Description

The utility model will be further illustrated with reference to specific examples.

However, the description of the present utility model is merely an embodiment of a structural or even functional description, and the scope of the claims of the present utility model is not limited by the embodiments described herein.

For example, the embodiments may have various modifications and various forms, and it is to be understood that the scope of the claims of the present utility model includes equivalents capable of realizing the technical idea.

As shown in fig. 1 to 16, the present embodiment is realized by the following technical scheme: the aneurysm clip comprises: the novel double-row double-sleeve inner sleeve comprises an inner core 1, an inner sleeve 2, an outer sleeve 3, a pulling cap 4, a locking button 5, a male hook 6, a right piece 7, a female hook 8, a left piece 9 and a reed 10, wherein the head end (namely, a clamp head) of the inner core 1 is a pair of elastic clamping plates 11, the elastic clamping plates have a certain angle a DEG, the inner core 1 is arranged in the inner sleeve 2, the head end of the inner sleeve 2 is provided with a flat sleeve 18, the flat sleeve 18 is in a flat horn shape, the inner walls on two sides of the flat sleeve 18 can restrict the outer walls on two sides of the elastic clamping plates 11, the inner sleeve 2 is arranged in the outer sleeve 3, the outer sleeve 3 is in butt joint with the pulling cap 4, a square groove 33 is arranged below the outer sleeve 3, the square groove 33 below the outer sleeve 3 can be filled into a middle tube 22, a front fixing block 34 and a rear fixing block 35 are arranged at the bottom of the outer sleeve 3, a front wire block 36 is arranged on the front fixing block 34, a rear wire block 37 is arranged on the rear fixing block 35, two sides of the front fixing block 34 are provided with a left square groove 38 and a right square groove 39, the left square groove 38 is rotationally connected with a double-row left square groove 41 of the left piece 9, the right square groove 39 is rotationally connected with a double-row right square groove 45 of the right square groove 7, and the left piece 9 is arranged opposite to the left piece 9. The inner side surface of the left sheet 9 is provided with a female hook 8 and is welded and fixed, the side surface of the right sheet 7 is provided with a hole, a column 52 penetrates through the hole, and the column 52 and a boss 53 form a locking button 5. The cylinder 52 of the locking button is connected with the male hook 6, the male hook 6 is fixed on the right piece 7, the tail of the left piece 9 is connected with the left side of the reed 10, the tail of the right piece 7 is connected with the right side of the reed 10, and the reed 10 has good plasticity.

The head of the elastic clamping plate 11 is provided with an angle groove 12, the middle of the elastic clamping plate is provided with an arc surface 13, the elastic clamping plate 11 is fixedly connected with an elongated rod 14, the elongated rod 14 is an inner core rod part and is a solid round rod, the elongated rod 14 is provided with an elongated groove 15, and the elongated groove 15 separates the two elastic clamping plates 11. The end of the elongated rod 14 is provided with a U-shaped slot 16 and an annular clamping slot 17.

The middle part of the inner sleeve 2 is provided with a handle flower 19, the tail end of the inner sleeve 2 is provided with a cross-shaped clamping groove 20, and the outer side of the inner sleeve 2 is provided with a locking clamping groove 21.

The inner sleeve 2 is sleeved in the middle tube 22, the locking clamping groove 21 on the inner sleeve 2 clamps the middle tube 22 into the middle tube to be fixed, the bottom of the middle tube 22 is provided with a fixed block 23, the fixed block 23 is provided with a threaded hole 24, the fixed block 23 can only axially move along the inner wall of the square groove 33 of the outer sleeve 3, the front wire stop 36 can limit the forward moving position of the middle tube 22, and the rear wire stop 37 can limit the backward moving position of the middle tube 22.

The inner core 1 is propped by a propping pin 25, the propping pin 25 is connected with the outer sleeve 3 through a spring 26, a check ring 27 is arranged at one end of the propping pin 25, and the spring 26 stretches between the check ring 27 and the tail of the outer sleeve. The head that the tight round pin 25 is equipped with retaining ring one end is equipped with conical head 28, and conical head 28 can jack into the terminal U-shaped groove 16 of inner core 1, and annular draw-in groove 17 is locked in the fixed dog 29 in outer tube 3, and fixed dog 29 is fixed on outer tube 3 inner wall, and inner tube 2 and inner core 1 can both rotate around its self center pin, realizes the circumferential rotation of elastic clamping plate 11, is equipped with oiling mouth 32 below outer tube 3, and oiling mouth 32 can pour into lubricating oil.

The puller pin 25 is fixedly connected with the pulling cap 4. The pull cap 4 is also provided with a handle flower, the pull cap 4 is matched with the outer sleeve 3 through the spring 26, the outer sleeve 3 is provided with an upper clamping groove 30 and a lower clamping groove 31, when the spring is in a natural state, the flange on the pull cap 4 is tightly attached to the upper clamping groove 30, the pull cap can circumferentially rotate by 360 degrees, when the pull cap rotates by 180 degrees, the spring 26 is in a compressed state, the lower clamping groove 31 is tightly matched with the flange of the pull cap 4, at the moment, the conical head 28 is pulled to one side of the pull cap, the conical head is separated from the U-shaped groove 16, and the inner core 1 can be detached.

The appearance designs of the left sheet 9 and the right sheet 7 are gun-shaped, the thickness directions of the left sheet 9 and the right sheet 7 are Z-shaped, the left sheet 9 is provided with double rows of left square grooves 41, the double rows of left square grooves 41 are inserted into the left square grooves 38 of the outer sleeve 3 and are rotationally connected together by utilizing a pin shaft, the inner side of the left sheet 9 is provided with a left hinge plate fixing block 42, the left hinge plate fixing block 42 is provided with a left fixing block square groove 43, the left hinge plate fixing block 42 is provided with a through hole, and the left hinge plate 44 is inserted into the left fixing block square groove 43 and is rotationally connected together by the pin shaft. The right piece 7 is provided with a double-row right square groove 45, the double-row right square groove 45 is inserted into the right square groove 39 of the outer sleeve 3 and is connected together by a pin shaft in a rotating way, the inner side of the right piece 7 is provided with a right hinge plate fixing block 46, the right hinge plate fixing block 46 is provided with a right fixing block square groove 47, the right hinge plate fixing block 46 is provided with a through hole, and the right hinge plate 48 is inserted into the right fixing block square groove 47 and is connected together by the pin shaft in a rotating way. The outer side surfaces of the left piece and the right piece are respectively provided with a long groove 50, so that the novel reed fixing device is more in accordance with human engineering, convenient to hold, and the tail parts of the left piece and the right piece are respectively provided with a reed fixing groove 51, and the reed fixing grooves 51 are riveted with the two ends of the reed and welded and fixed.

The left hinge plate 44 and the right hinge plate 48 are both provided with through holes, one end of the left hinge plate 44 is connected with the left hinge plate fixing 42 through a pin shaft, the other end of the left hinge plate 44 is connected with the right hinge plate 48 through a threaded pin shaft 49, the left hinge plate 44 is overlapped on the right hinge plate 48, the left hinge plate 44 and the right hinge plate 48 are connected with the middle pipe 22 through a threaded pin shaft 49, one end of the threaded pin shaft 49 is provided with threads, the threads are screwed into the threaded holes 24 of the middle pipe fixing block 23, and the left hinge plate 44 is positioned below the right hinge plate 48.

The head of the locking button 5 is provided with a boss 53, the diameter of the boss 53 is larger than that of the column 52, the diameter of the column 52 is slightly smaller than that of the through hole in the right piece, the tail of the column 52 is fixedly connected with the male hook 6, the male hook 6 is provided with a three-arm structure, a male hook arm I54 is connected with the tail end of the locking button and is welded and fixed, a male hook arm II 55 is connected with the right piece 9 and is welded and fixed, a male hook arm III 56 can be locked with the female hook 8, and the male hook 6 has good plasticity.

Working principle:

when the aneurysm clipping device is used, the left piece 9 and the right piece 7 are pinched, the middle tube 22 is driven to axially move through the left hinge plate 44 and the right hinge plate 48, and the middle tube 22 is sleeved and locked in the locking clamping groove 21 of the inner sleeve 2, so that the middle tube 22 and the inner sleeve 2 axially synchronously move, the inner sleeve 2 axially moves towards the direction of the elastic clamping plate 11, a part of the rear end of the elastic clamping plate 11 is retracted into the flat sleeve piece 18, and the aneurysm is clipped by the angular groove 12 and the intrados 13 of the elastic clamping plate 11.

The inner core 1 is inserted into the inner sleeve 2, the middle tube 22 is sleeved and locked in the locking clamping groove 21 of the inner sleeve 2, the fixing block 23 of the middle tube 22 is slidably arranged in the square groove 33 below the outer sleeve 3, the inner walls of the two sides of the flat sleeve 18 at the head end of the inner sleeve 2 are used for restraining the outer walls of the two sides of the elastic clamping plate 11, synchronous circumferential rotation of the inner sleeve 2 and the inner core 1 is achieved, the inner core 1 is tightly propped in the fixing stop block 29 of the outer sleeve 3 through the propping pin 25, the propping pin 25 is slidably arranged inside the outer sleeve 3 through the spring 26, and both the inner sleeve 2 and the inner core 1 can circumferentially rotate by 360 degrees. The jacking pin 25 is fixedly connected with the pulling cap 4, the pulling cap can circumferentially rotate by 360 degrees, when the pulling cap is pulled backwards and rotated by 180 degrees, the inner core 1 is separated from the constraint of the jacking pin 25, the inner core can be disassembled, meanwhile, the elastic clamping plate 11 has a certain angle, and can clamp aneurysms in any direction in operation by matching with the 360-degree circumferential rotation of the inner core 1.

Be equipped with female hook 8 on the left part 9, be equipped with male hook 6 on the right part 7, male hook 6 has three arm structures, male hook arm I54 and lock button 5 fixed connection, lock button 5 inserts in the through-hole of right part 7, male hook arm II 55 and right part 7 fixed connection, when pressing lock button 5, male hook arm I54 drives male hook arm III 56 padlock in the slot of female hook 8 for male hook 6 and female hook 8 closure realizes that the elastic clamping board presss from both sides tight closure.

Of course, the foregoing is merely preferred embodiments of the present utility model and is not to be construed as limiting the scope of the embodiments of the present utility model. The present utility model is not limited to the above examples, and those skilled in the art will appreciate that the present utility model is capable of equally varying and improving within the spirit and scope of the present utility model.

Claims (10)

1. The aneurysm clamp is characterized by comprising an inner core (1), an inner sleeve (2), an outer sleeve (3), a linkage mechanism, a right piece (7), a left piece (9) and a reed (10), wherein the reed (10) is arranged between the right piece (7) and the left piece (9), the inner core (1) is positioned in the inner sleeve (2), the inner sleeve (2) is positioned in the outer sleeve (3), the right piece (7) and the left piece (9) are rotationally connected to two sides of the outer sleeve (3), and the right piece (7) and the left piece (9) are also connected with the inner sleeve (2) through the linkage mechanism; the main body of the inner core (1) is an elongated rod (14), a pair of elastic clamping plates (11) capable of opening and closing are arranged at the head end of the elongated rod (14), a horn-shaped flat sleeve (18) is arranged at the head end of the inner sleeve (2), and when the left piece (9) and the right piece (7) are kneaded, the inner sleeve (2) can be driven to axially move forwards through a linkage mechanism, so that the rear parts of the pair of elastic clamping plates (11) are retracted into the flat sleeve (18) to generate clamping action.

2. The aneurysm clamp according to claim 1, wherein the linkage mechanism comprises a middle tube (22), the middle tube (22) is fixed in a locking clamping groove (21) at the rear part of the inner sleeve (2), a fixed block (23) at the bottom of the middle tube (22) is slidably arranged in a square groove (33) formed in the outer sleeve (3), and the fixed block (23) is respectively connected with the left piece (9) and the right piece (7) through a left hinge plate (44) and a right hinge plate (48).

3. The aneurysm clamp according to claim 2, wherein the linkage mechanism is provided with a travel limiting mechanism, the travel limiting mechanism comprises a front wire block (36) arranged on a front fixing block (34) and a rear wire block (37) arranged on a rear fixing block (35), the front wire block (36) and the rear wire block (37) are positioned on the front side and the rear side of the fixing block, and the front fixing block (34) and the rear fixing block (35) are fixedly connected with the outer sleeve (3).

4. The aneurysm clamp according to claim 1, wherein the inner core (1) is fixed in the sleeve and detachable through an inner core limiting mechanism, the inner core limiting mechanism comprises a pulling cap (4) positioned behind the outer sleeve (3), a jacking pin (25) fixedly connected with the pulling cap (4) is arranged in the outer sleeve (3), the head end of the jacking pin (25) is a conical head (28), a retainer ring (27) is arranged on the jacking pin (25), and a spring (26) is arranged between the retainer ring (27) and the tail part of the outer sleeve (3); under the action of the spring (26), the conical head (28) is jacked into the U-shaped groove (16) at the tail end of the inner core (1) to prop open the U-shaped groove (16), and the annular clamping groove (17) on the inner core (1) is clamped on the fixed stop block (29) on the inner wall of the outer sleeve (3).

5. The aneurysm clamp according to claim 4, wherein the rear end surface of the outer sleeve (3) is provided with an upper clamping groove (30) and a lower clamping groove (31), the upper clamping groove (30) is longer than the lower clamping groove (31), when the spring (26) is in a natural state, the pull cap (4) is tightly attached to the rear end surface of the outer sleeve (3), and a flange on the pull cap (4) is clamped into the upper clamping groove (30); the pulling cap (4) can circumferentially rotate, when the pulling cap (4) rotates 180 degrees, the spring (26) is in a compressed state, the flange on the pulling cap (4) is clamped into the lower clamping groove (31), the conical head (28) is separated from the U-shaped groove (16), and the inner core (1) can be disassembled.

6. The aneurysm clamp according to claim 1, wherein the resilient clamping plate (11) is tilted up or bent down.

7. The aneurysm clamp according to claim 1 or 6, wherein the inner side surface of the elastic clamping plate (11) is an arc surface (13), and the head end of the elastic clamping plate (11) is provided with an angular groove (12).

8. The aneurysm clamp according to claim 1, wherein the left and right sheets (9, 7) are gun-shaped in side view, and the left and right sheets (9, 7) are zigzag-shaped in thickness direction.

9. The aneurysm clamp according to claim 1, wherein a self-locking mechanism is arranged between the left piece (9) and the right piece (7), and the self-locking mechanism comprises a male hook (6) arranged on the right piece (7) and a female hook (8) arranged on the left piece (9).

10. The aneurysm clamp according to claim 9, wherein the male hook (6) is connected to a boss (53) of the locking button (5) through a column (52), the boss (53) is located outside the right piece (7), the column (52) penetrates the right piece (7), and when the left piece (9) and the right piece (7) are kneaded and the locking button (5) is pressed, the male hook (6) and the female hook (8) are locked.