CN206576924U - Have the Minimally Invasive Surgery scissors of flexible and anti-rotation concurrently - Google Patents

Abstract

The utility model discloses a kind of Minimally Invasive Surgery scissors for having flexible and anti-rotation concurrently, including the operating portion, flexible extension and control unit being sequentially connected, wherein, flexible extension includes being arranged at least two layer lines stock coiling layer and the transmission rope being arranged in flexible hose that the flexible hose at center, stacking are placed on flexible hose outer wall, wherein, per layer line, stock coiling layer is coiled to form from least five strands from one end of flexible hose to the other end, and the coil direction of any two layers of adjacent strands coiling layer is opposite；Operating portion is included by connecting the operation device that pivot pin intersects the first scissor body and the second scissor body of pivot joint and acted for the first scissor body of control and the second scissor body, wherein, the front end of transmission rope is connected with operation device, the rear end of transmission rope is connected with control unit, so that operation device is in the presence of transmission rope, the first scissor body and the second scissor body is driven to carry out open and close movement relative to each other.

Description

Have the Minimally Invasive Surgery scissors of flexible and anti-rotation concurrently

Technical field

The utility model is related to a kind of medicine equipment, more particularly to a kind of surgical scissors.

Background technology

Minimally Invasive Surgery refers to make some perforation in body surface, and endoscope and operation apparatus are entered into body by above-mentioned aperture Intracavitary, such as abdominal cavity, thoracic cavity, articular cavity, by patient under the monitoring of endoscope, by hand in the external operator tool of patient, make The working end that apparatus is stretched into patient's body cavity is cut off to the focus of intracavitary, or the operation, art such as is repaired, sutured to organ Finish and take out endoscope and apparatus, the aperture of suture body surface can complete whole operation.

Traditional Minimally Invasive Surgery is to control opening for scissors bit by operating the flexible handle of scissor handle with scissors And closure, when carrying out Minimally Invasive Surgery, for the opening and closing of the accurate control scissors in operation, handle can not be oversize, otherwise can not The operation of scissors bit is controlled exactly, further, since the organ distribution in human intracavity is complex, is used when needing Minimally Invasive Surgery When the handle of scissors carries out deep camber bending some vitals of avoidance, current Minimally Invasive Surgery scissors is then difficult to complete, and Even and if when making scissors handle using flexible material, flexible material is not only difficult to support scissors bit, it is also difficult to transmit patient couple The control of scissors bit dynamics, it is impossible to complete the operation of Minimally Invasive Surgery.

A kind of endoscopic minimally-invasive scissors as disclosed in Chinese patent 201110259086.6, it includes movable blade, fixation Knife, movable knife bar, fixed knife bar, operation handle and operating control device, operating control device include making movable blade rotate and solid Mobile device and movable blade and fixing cutter is rotated the rot for changing shear direction that stationary knife is tightly stung or opened completely；Mobile dress Put and interlock pipe, push rod, back-moving spring and spring supporting ring including movable blade, movable blade gearing pipe one end is connected with movable blade and can To rotate, the other end is fixed with push rod；Push rod, which is mounted in operation handle rear end, operation handle, spring supporting ring, back-moving spring Between spring supporting ring and push rod；Movable blade and movable knife bar pin connection and it can rotate.However, the patent application institute The endoscopic minimally-invasive scissors of design can not realize the bending effect of deep camber, it is difficult to adapt to complicated inner chamber environment.

And for example a kind of cardiac minimally-invasive surgery scissors disclosed in Chinese patent 201310391193.3, the surgical scissors bag Include：Slender casing, sleeve pipe has relative first end and the second end；Cutter head, cutter head is fixed to the first end of sleeve pipe；Handle of a knife, knife The near-end of handle is connected to the second end of sleeve pipe, and a part for the close sleeve pipe of handle of a knife is formed with through hole；Handle, handle by from Two arms that the distal end of handle of a knife proximally extends are constituted；And pull bar, pull bar movably coordinates in through hole and sleeve pipe.Cutter head One end of pull bar is connected to by the first link gear, the end of two arms is connected to the another of pull bar by the second link gear One end, and two arms are formed with grip part in the part close to sleeve pipe respectively.However, the heart designed by the patent application The sleeve pipe of dirty Minimally Invasive Surgery scissors still can not realize the bending effect of deep camber, while being needed after scissors wipes out object suitable When hour hands or rotate counterclockwise, its sleeve pipe is also difficult to the moment of torsion from handle being successfully transferred to handle of a knife.

Therefore it provides a kind of Minimally Invasive Surgery scissors for having flexible and anti-rotation concurrently, which turns into, is badly in need of in the industry asking for solution Topic.

The content of the invention

The purpose of this utility model is to provide a kind of Minimally Invasive Surgery scissors for having flexible and anti-rotation concurrently, the minimally invasive hand The labyrinth that art is not only adapted to human intracavity with scissors realizes the bending of deep camber, but also can be in scissors curved Scissor body is successfully transferred a torque to during curved state.

To achieve these goals, the utility model provides a kind of Minimally Invasive Surgery for having flexible and anti-rotation concurrently with cutting Knife, including operating portion, flexible extension and the control unit being sequentially connected, wherein, flexible extension includes being arranged at scratching for center Property flexible pipe, stacking be placed at least two layer lines stock coiling layer of flexible hose outer wall and the transmission that is arranged in flexible hose Rope, wherein, per layer line, stock coiling layer is coiled to form from least five strands from one end of flexible hose to the other end, any two layers The coil direction of adjacent strands coiling layer is opposite；Operating portion includes the first scissor body and second for intersecting pivot joint by connecting pivot pin Scissor body and the operation device for controlling the first scissor body and the action of the second scissor body, wherein, the front end of transmission rope and behaviour Make device to be connected, the rear end of transmission rope is connected with control unit so that operation device drives the first scissors in the presence of transmission rope Body and the second scissor body carry out open and close movement relative to each other.

Selectively, at least two layer lines stock coiling layer can be three layers or more than three layers.

Selectively, the transmission rope in flexible hose can be made up of steel wire or nylon wire.

Preferably, the first scissor body includes being located at the first anterior cut part of connection pivot pin and positioned at connection pivot pin rear portion First Actuator Division, the second scissor body includes second positioned at the second anterior cut part of connection pivot pin and positioned at connection pivot pin rear portion Actuator Division.

Preferably, front end center of the operation device including upper surface is fixed with the pedestal of connection pivot pin, front end by first Pivot is articulated in the first connecting rod of the second Actuator Division rear end, front end and is articulated in by the second pivot behind the first Actuator Division The second connecting rod at end, by being oriented to pivot pin by the rear end of first connecting rod and the rear end of second connecting rod intersect pivot joint and rear end and transmission The guide way that the front end of rope is fixedly connected, wherein, connection pivot pin is respectively positioned on the longitudinal centre line of pedestal with being oriented to pivot pin, is connected Pivot pin, guiding pivot pin, the first pivot and the second pivot are respectively positioned on same level.

Preferably, extended to along the guiding position of pedestal between base rear wall end and be provided with boss, boss front bulkhead center to base Seat rear wall end center offers guide channel, and guide way is placed in guide channel and guide channel is extended in front end, the axis of guide Pin is formed at the front end of guide way.

Preferably, extend to base rear wall end along the longitudinal centre line self- steering position of pedestal on base-plates surface and be formed with and lead To groove, guide way is placed in guide groove and can moved back and forth along guide groove, the upper surface of guide way and the upper surface of pedestal In same level, and it is oriented to the upper surface that pivot pin is fixed on guide way.

Preferably, control unit includes control seat, is opened in control seat front bulkhead center and terminate at the first of control seat and slides The through hole for wearing transmission rope of dynamic position, the longitudinal centre line of edge control seat extend to the second of control seat from the first slip position Slide position and be formed at the chute of control seat upper surface, front end and be connected with the rear end of transmission rope and be placed in chute with along cunning The reciprocating sliding block of groove and the dynamic clamping head and quiet clamping head being located between an end wall of sliding block and an end wall of chute.

Selectively, dynamic clamping head and quiet clamping head is the stretching rubber parts that extension spring or center are provided with through hole, extension spring or The front bulkhead of chute is fixed in the front end of stretching rubber parts, extension spring or stretches the rear end of rubber parts and is fixed on the front end of sliding block Wall, the front end of transmission rope through extension spring central through hole or stretch the through hole of rubber parts and be fixed on the rear end of guide way Wall.

Selectively, dynamic clamping head and quiet clamping head is the front end of compression spring or compressing rubber part, compression spring or compressing rubber part It is fixed on the aft bulkhead of sliding block, the aft bulkhead of chute is fixed in the rear end of compression spring or compressing rubber part.

Selectively, the aft bulkhead of control seat is provided with pushing and pressing part, and the both sides of sliding block are respectively equipped with lantern finger ring.

Preferably, the aft bulkhead of pedestal is provided with the first packing ring, and the center of the first packing ring offers the first centre bore, controls The front bulkhead of seat is provided with second packing ring, and the center of second packing ring offers the second centre bore, wherein, the front end of transmission rope is passed through First centre bore is fixed on the aft bulkhead of guide way, and the rear end of transmission rope is fixed on through the through hole of the second centre bore and control seat The front end of the front bulkhead of sliding block, at least two layer lines stock coiling layer is individually fixed in the aft bulkhead of the first packing ring, at least two layer lines stock The rear end of coiling layer is individually fixed in the front bulkhead of second packing ring.

Preferably, per layer line, stock coiling layer uses same strands coiling, and outer strands coil the strand count of layer More than the strand count that inner strands coil layer.

Selectively, containment vessel is set outside operating portion and sets flexible sleeve outside flexible extension to avoid device Tool is damaged to patient in itself.

The beneficial effects of the utility model are：(1) because whole extension has flexibility, Minimally Invasive Surgery scissors can be realized The bending effect of deep camber, is more suitable for the complex environment of inner chamber；(2), because extension is (suitable using the different coil directions of multilayer Hour hands are counterclockwise) strands coiling layer construction, thus wipe out and needed clockwise or counterclockwise after object when scissor body When, coil direction will tighten the moment of torsion from control unit being smoothly transferred to operation with direction of rotation identical strands coiling layer Portion；(3), by pulling the sliding block of control unit just can control the opening and closing movement of scissor body using transmission device, greatly reduce The complexity of operation.

Brief description of the drawings

Fig. 1 is the organigram of the present utility model for having the flexible Minimally Invasive Surgery scissors with anti-rotation concurrently.

Fig. 2 is Fig. 1 Section A-A schematic diagram.

Fig. 3 is the organigram of another embodiment of operating portion of the present utility model.

Fig. 4 is the organigram of another embodiment of control unit of the present utility model.

Fig. 5 is Fig. 4 section B-B schematic diagram.

Embodiment

Refer to Fig. 1, according to a kind of non-limiting embodiment of the present utility model, it is of the present utility model have concurrently it is flexible and The Minimally Invasive Surgery scissors of anti-rotation includes the operating portion 100, flexible extension 200 and control unit 300 being sequentially connected.

Wherein, in order to realize that whole extension has flexible and anti-rotation concurrently, flexible extension 200 includes being arranged at center Flexible hose 201, the transmission rope 203 that is arranged in flexible hose 201 and stacking be placed on the outer wall of flexible hose 201 Two layer lines stock coiling layer 2021 and 2022.Wherein, as shown in Fig. 2 stock coiling layer is soft from flexibility by least five strands per layer line One end of pipe 201 is coiled to form to the other end, and the coil direction of adjacent strands coiling layer 2021 and 2022 is opposite to be propped up with strengthening Support rigidity.It is flexible that the setting of flexible hose and at least two layer lines stock coiling layer can not only ensure that flexible extension 200 has Property, simultaneously as any two layers adjacent strands coiling layer have different coil directions (clockwise or counterclockwise), thus work as Scissor body is wiped out when needing clockwise or counterclockwise after object, coil direction and direction of rotation identical strands coiling layer It will tighten the moment of torsion from control unit 300 being smoothly transferred to operating portion 100.

As shown in figure 1, operating portion 100 includes the first scissor body 110, the second scissor body 120 and first can be controlled to cut The operation device 130 of the scissor body 120 of cutter hub 110 and second action.First scissor body 110 and the second scissor body 120 pass through connection Pivot pin CS intersects pivot joint, and 110 points by the first scissor body of connection pivot pin CS is positioned at the first anterior connection pivot pin CS cut part 1101 and the first Actuator Division 1102 positioned at connection pivot pin CS rear portions, with this symmetrically, connection pivot pin CS is by the second scissor body 120 It is divided into positioned at the second anterior connection pivot pin CS cut part 1201 and the second Actuator Division 1202 positioned at connection pivot pin CS rear portions.For Realize the folding control to the first scissor body 110 and the second scissor body 120, operation device 130 includes first connecting rod 1301, the Two connecting rods 1302, pedestal 1303 and guide way 1304.

As shown in figure 1, connection pivot pin CS is fixed on before the front end center of the upper surface of pedestal 1303, first connecting rod 1301 End is articulated in the rear end of the second Actuator Division 1202 by the first pivot PS1, and the front end of second connecting rod 1302 is pivoted by second Pivot pin PS2 is articulated in the rear end of the first Actuator Division 1102, in the non-limiting embodiment, prolongs along the guiding position GP of pedestal 1303 Extend and boss (not shown) is provided between the rear wall end of pedestal 1303, boss front bulkhead center offers to base rear wall end center and led To passage 13035, guide way 1304 is placed in guide channel and guide channel is extended in its front end and rear end and transmission rope 203 Front end be fixedly connected, while the rear end of first connecting rod 1301 and the rear end of second connecting rod 1302 are by being formed at guide way 1304 Front end guiding pivot pin GS intersect pivot joint.

In order to realize the smooth folding of the first scissor body 110 and the second scissor body 120, connection pivot pin CS is with being oriented to pivot pin GS On the longitudinal centre line for being respectively positioned on pedestal 1303, meanwhile, connection pivot pin CS, it is oriented to pivot pin GS, the first pivot PS1 and the Two pivot PS2 are located substantially at same level.Thus, operation device 130 is in the presence of transmission rope 203, drives the One scissor body 110 and the second scissor body 120 carry out open and close movement relative to each other.

As a kind of alternative embodiments, as shown in figure 3, on the surface of pedestal 1303 along pedestal 1303 longitudinal center Line self- steering position GP extends to base rear wall end and is formed with guide groove 13036, and guide way 1304 is placed in guide groove and can Moved back and forth along guide groove, the upper surface of guide way 1304 is in same level, and the axis of guide with the upper surface of pedestal 1303 Pin GS is fixed on the upper surface of guide way 1304.

In the non-limiting embodiment, as shown in figure 1, control unit 300 includes control seat 301, chute 302, sliding block 303 and compression spring 304.As shown in figure 5, offered at control seat 301 front bulkhead center one terminate at control seat 301 the One slides position P1 through hole H, and transmission rope 203 can be penetrated in through hole H.Position is slided along the longitudinal centre line of control seat 301 from first P1 extends to the second slip position P2 of control seat 301 in the upper surface of control seat 301 and forms chute 302, with transmission rope 203 The sliding block 303 that rear end is connected is placed in chute 302 and can moved back and forth along chute 302.In the non-limiting embodiment In, the aft bulkhead of sliding block 303, compression spring 304 or pressure are fixed in the front end of compression spring 304 or compressing rubber part (not shown) The aft bulkhead of chute 302 is fixed in the rear end of contracting rubber parts.In addition, the both sides of sliding block 303 are additionally provided with grip part 3035.

As a kind of alternative embodiments, as shown in figure 4, compression spring 304 can be replaced extension spring 305 or center The front bulkhead of chute 302, extension spring 305 or stretching rubber are fixed in the front end of stretching rubber parts (not shown) provided with through hole The front bulkhead of sliding block 303 is fixed in the rear end of glue part, and the front end of transmission rope 203 passes through central through hole or the drawing of extension spring 304 Stretch the through hole of rubber parts and be fixed on the aft bulkhead of guide way 1304.

As another alternative embodiments connected between flexible extension 200 and control unit 300, as shown in figure 1, Center of the aft bulkhead of pedestal 1303 provided with the first packing ring W1, the first packing ring W1 offers the first centre bore (not shown), controls The front bulkhead of seat 301 processed is provided with second packing ring W2, and second packing ring W2 center offers the second centre bore (not shown), is driven The front end of rope 203 is fixed on the aft bulkhead of guide way 1304 through the first centre bore, and the rear end of transmission rope 203 passes through the second center Hole and control the through hole H of seat 301 and be fixed on the front bulkhead of sliding block 303, the front end of each strands coiling layer 2021 and 2022 is then The first packing ring W1 being fixed on the aft bulkhead of pedestal 1303, the second pad that rear end is then fixed on the front bulkhead of control seat 301 Enclose W2.

As another alternative embodiments, compression spring 304 is not provided with, but set in guide channel 13035 Back-moving spring (is such as located in the compression spring between the end of guide way 1304 and the end of guide channel 13035), works as operator After the grip part 3035 for unclamping sliding block 303 both sides, guide way 1304 can in the presence of back-moving spring forward end (pivot pin GS Direction) move and then drive the first cut part 1101 and the second cut part 1201 progressively to recover to open mode.

Thus, when pulling back sliding block 303, transmission rope 203 drives guide way 1304 to move backward, with guide way 1304 The first connecting rod 1301 and the move toward one another of second connecting rod 1302 of connection are pivotally connected, and then is utilized respectively the first Actuator Division 1102 and second Actuator Division 1202 drives the first cut part 1101 and the second cut part 1201 progressively close to until shear action is completed, when completion is cut Cut after action, using compression spring 304 or extension spring 305 screen resilience of itself, push or pull on guide way 1304 and transport forward It is dynamic, it is pivotally connected the first connecting rod 1301 being connected with guide way 1304 and second connecting rod 1302 carries out counter motion, is then utilized respectively First Actuator Division 1102 and the second Actuator Division 1202 drive the first cut part 1101 and the second cut part 1201 progressively to separate again.

Although preferred embodiment of the present utility model has been described in detail herein, it is to be understood that the utility model is not The concrete structure be described in detail and shown here is confined to, can be by the case of without departing from spirit and scope of the present utility model Those skilled in the art realizes other modifications and variant.

Claims (10)

1. The Minimally Invasive Surgery scissors of flexible and anti-rotation is had concurrently 1. a kind of, including operating portion, the flexible extension being sequentially connected And control unit, it is characterised in that：

   The flexible extension is placed at least the two of the flexible hose outer wall including being arranged at the flexible hose at center, stacking Layer line stock coiling layer and the transmission rope being arranged in the flexible hose, wherein, per layer line, stock coiling layer is by least five lines Stock is coiled to form from one end of the flexible hose to the other end, and the coil direction of any two layers of adjacent strands coiling layer is opposite；

   The operating portion includes intersecting the first scissor body and the second scissor body of pivot joint and for controlling by connecting pivot pin The operation device of the first scissor body and second scissor body action is stated, wherein, the front end of the transmission rope is filled with the operation Put connected, the rear end of the transmission rope is connected with the control unit so that the operation device in the presence of the transmission rope, First scissor body and second scissor body is driven to carry out open and close movement relative to each other.
2. 2. the Minimally Invasive Surgery scissors as claimed in claim 1 for having flexible and anti-rotation concurrently, it is characterised in that described first Scissor body includes being located at the first anterior cut part of the connection pivot pin and the first Actuator Division positioned at the connection pivot pin rear portion, Second scissor body include being located at the second anterior cut part of the connection pivot pin and positioned at the connection pivot pin rear portion the Two Actuator Divisions.
3. 3. the Minimally Invasive Surgery scissors as claimed in claim 2 for having flexible and anti-rotation concurrently, it is characterised in that the operation Front end center of the device including upper surface is fixed with the pedestal of the connection pivot pin, front end and is articulated in institute by the first pivot State the first connecting rod of the second Actuator Division rear end, front end and the second of first Actuator Division rear end is articulated in by the second pivot Connecting rod, by be oriented to pivot pin by the rear end of the first connecting rod and the rear end of the second connecting rod intersect pivot joint and rear end with it is described The guide way that the front end of transmission rope is fixedly connected, wherein, the connection pivot pin is respectively positioned on the pedestal with the guiding pivot pin On longitudinal centre line, the connection pivot pin, the guiding pivot pin, first pivot and second pivot are equal Positioned at same level.
4. 4. the Minimally Invasive Surgery scissors as claimed in claim 3 for having flexible and anti-rotation concurrently, it is characterised in that along the base The guiding position of seat is provided with boss, the boss front bulkhead center to the base rear wall end between extending to the base rear wall end Center offers guide channel, and the guide way is placed in the guide channel and the guide channel is extended in front end, institute State the front end that axis of guide pin is formed at the guide way.
5. 5. the Minimally Invasive Surgery scissors as claimed in claim 3 for having flexible and anti-rotation concurrently, it is characterised in that in the base The base rear wall end is extended to along the longitudinal centre line of the pedestal from the guiding position be formed with guide groove on seating face, institute Guide way is stated to be placed in the guide groove and can move back and forth along the guide groove, the upper surface of the guide way with it is described The upper surface of pedestal is in same level, and the guiding pivot pin is fixed on the upper surface of the guide way.
6. 6. the Minimally Invasive Surgery scissors for having flexible and anti-rotation concurrently as described in claim 4 or 5, it is characterised in that described Control unit includes control seat, is opened in the control seat front bulkhead center and terminates at the first of the control seat use for sliding position The control is extended in wearing the through hole of the transmission rope, sliding position from described first along the longitudinal centre line of the control seat The second of seat, which slides position and be formed at the chute of the control seat upper surface, front end, to be connected and holds with the rear end of the transmission rope It is placed in the chute along the reciprocating sliding block of the chute and to be located in the end wall and the chute of the sliding block An end wall between dynamic clamping head and quiet clamping head.
7. 7. the Minimally Invasive Surgery scissors as claimed in claim 6 for having flexible and anti-rotation concurrently, it is characterised in that the elasticity Return unit is provided with for extension spring or center before the stretching rubber parts of through hole, the extension spring or the stretching rubber parts The front bulkhead of the chute is fixed at end, and the rear end of the extension spring or the stretching rubber parts is fixed on before the sliding block End wall, the front end of the transmission rope passes through the central through hole of the extension spring or the through hole of the stretching rubber parts and fixed In the aft bulkhead of the guide way.
8. 8. the Minimally Invasive Surgery scissors as claimed in claim 6 for having flexible and anti-rotation concurrently, it is characterised in that the elasticity Return unit is compression spring or compressing rubber part, and the sliding block is fixed in the front end of the compression spring or the compressing rubber part Aft bulkhead, the aft bulkhead of the chute is fixed in the rear end of the compression spring or the compressing rubber part.
9. 9. the Minimally Invasive Surgery scissors as claimed in claim 6 for having flexible and anti-rotation concurrently, it is characterised in that the pedestal Aft bulkhead be provided with the first packing ring, the center of first packing ring offers the first centre bore, the front bulkhead of the control seat Second packing ring is provided with, the center of the second packing ring offers the second centre bore, wherein, the front end of the transmission rope passes through institute The aft bulkhead that the first centre bore is fixed on the guide way is stated, the rear end of the transmission rope passes through second centre bore and described The through hole of control seat is fixed on the front bulkhead of the sliding block, and the front end of at least two layer lines stock coiling layer is individually fixed in The aft bulkhead of first packing ring, the rear end of at least two layer lines stock coiling layer is individually fixed in the front end of the second packing ring Wall.
10. 10. the Minimally Invasive Surgery scissors as claimed in claim 6 for having flexible and anti-rotation concurrently, it is characterised in that per layer line Stock coiling layer uses same strands coiling, and the strand count of outer strands coiling layer is more than inner strands coiling layer Strand count.