CN109758223A - A kind of Minimally Invasive Surgery instrument using PEEK connecting rod - Google Patents
A kind of Minimally Invasive Surgery instrument using PEEK connecting rod Download PDFInfo
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- CN109758223A CN109758223A CN201910035831.5A CN201910035831A CN109758223A CN 109758223 A CN109758223 A CN 109758223A CN 201910035831 A CN201910035831 A CN 201910035831A CN 109758223 A CN109758223 A CN 109758223A
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Abstract
The invention discloses a kind of Minimally Invasive Surgery instruments using PEEK connecting rod, the Minimally Invasive Surgery instrument includes connecting rod and holds bar device with what connecting rod was used cooperatively, connecting rod includes sequentially connected connection club head, connection club shaft and connector, connection club head is cone shape, connection club shaft is the PEEK material body of rod, and connector is cylindrical shape.Connection club shaft is PEEK material, high with the fusion rate of people's bone, slows down fusion gap adjacent to the regression in stage, is not easy to rub with other fixed systems, the PEEK material body of rod is the Prebending type body of rod, meets lumbar physiological-curvature；Connecting club head, connector is TC4 material, when allowing to carry out Minimally Invasive Surgery, connects club head and connector can develop positioning under X-ray, be more convenient using the connecting rod.
Description
Technical field
The present invention relates to medical instruments field, specifically a kind of Minimally Invasive Surgery instrument using PEEK connecting rod.
Background technique
Spine nail stick internal fixation operation is one of the operation for carrying out reset and the fixation of bone, in open surgery, is led to
It crosses and holds bar device connecting rod is put into pedicle screw head of a nail U-type groove.
With the development of medical technology, minimal invasive techniques are developed in spinal surgery, minimally invasive compared to open surgery
Operation have surgical wound it is small, caused by injury and pain it is small, post-operative recovery time is short, can more quickly restore, and amount of bleeding is few, art
In cause the risk of secondary injury low.
It is existing at present to hold that bar device use process is cumbersome, puts stick difficulty, the connecting rod of traditional material and the fusion rate of bone
Not high, fusion gap is easy to happen regression adjacent to the stage, and connecting rod and other fixed systems are easy to happen friction, lead to pain in the loins,
And the connecting rod of traditional material is to be bent in art according to clinical experience, there are camber is inconsistent and camber not meet lumbar vertebrae raw
Curvature is managed, local stress is formed and increases, lead to pain in the loins.
Summary of the invention
The purpose of the present invention is to provide a kind of Minimally Invasive Surgery instruments using PEEK connecting rod, to solve in the prior art
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of Minimally Invasive Surgery instrument using PEEK connecting rod, the Minimally Invasive Surgery instrument include connecting rod and match with connecting rod
What conjunction used holds bar device, and connecting rod includes sequentially connected connection club head, connection club shaft and connector, and connection club head is circle
Cone-shaped, connection club shaft shape are arc, and connector is cylindrical shape.
In the above-mentioned technical solutions, connection club head is cone shape, is more easily pierced into soft tissue when in use, more holds
It easily penetrates skin to enter subcutaneously, connection club shaft shape is arc, which is the Prebending type body of rod, meets lumbar vertebrae physiology
Curvature, connector are cylindrical shape, and the shape of cylinder is more wear resistant, is hardly damaged.
Preferably, connection club shaft is the PEEK material body of rod, and holding bar device includes sleeve, mandril and screw rod, sleeve
Be provided with bending part, sleeve inner be it is hollow, in mandril and screw rod insertion sleeve, mandril is set to the lower section of bending part, screw rod
It is set to the top of bending part, screw rod is in contact in bending part with mandril, and sleeve is provided with clamping connection close to one end of mandril
The opening of bar.
In the above-mentioned technical solutions, the effect for clamping connecting rod is realized.Connection club shaft is the PEEK material body of rod, PEEK
For polyether-ether-ketone, it is a kind of special engineering plastics haveing excellent performance, and PEEK material has high-intensitive and low stripping property, PEEK material
The matter body of rod and human body have good amalgamation, and screw rod squeezes mandril in sleeve, and connecting rod is pressed on sleeve by mandril, top
The cooperation of both bar and sleeve clamps connecting rod；Sleeve is provided with bending part, and one side bending part is for limiting mandril and screw rod
Position, on the other hand, the bending angle of bending part at 10 degree to 15 degree so that sleeve integrally it is substantially in the shape of a rod, to hold bar
Device can just pass through more pedicle nails when straight down.
Preferably, sleeve includes collet head and sleeve body, and collet head is provided with sleeve recess, and collet head is provided with
The first pilot hole, the first pilot hole are provided in the sleeve protrusion being used cooperatively with sleeve recess, sleeve recess and sleeve protrusion
It is inside provided with the first pin shaft, the first pin shaft is used to connect collet head and sleeve body, and sleeve body is provided with far from one end of collet head
Internal screw thread is provided with the external screw thread with the screw-internal thread fit of sleeve body on screw rod, and the opening for clamping connecting rod is arranged in collet head
On, limited block is provided in opening.
In the above-mentioned technical solutions, collet head and sleeve body are attached by sleeve protrusion and sleeve recess, pass through weldering
The first pin shaft is connect, collet head and sleeve body are fixed together, and collet head and sleeve body are not integral structures but pass through
It is welded together, is the small structure of mid diameter in order to cooperate mandril both ends diameter big.Screw rod and sleeve body pass through screw thread
Connection, convenient to achieve the purpose that squeeze mandril by tightening screw rod, limited block is used to limit the position of connecting rod, so that mandril
The connector of connecting rod is just clamped with collet head.
Preferably, mandril includes the mandril body of rod and mandril head, and the mandril body of rod includes mandril boss and mandril bar
Body, mandril shaft are provided with assembly protrusion far from one end of mandril boss, and one end of mandril head is provided with matches with assembly protrusion
The assembling groove used is closed, the other end of mandril head is provided with the clamping recess being used cooperatively with connecting rod, mandril boss
Diameter, mandril head diameter be greater than the diameter of mandril shaft, spring is provided on mandril shaft, spring is located in mandril boss
Between sleeve protrusion, it is provided with the second pilot hole on assembly protrusion and assembling groove, the second pin is provided in the second pilot hole
Axis, the second pin shaft are used to connect the mandril body of rod and mandril head.
In the above-mentioned technical solutions, the diameter of mandril boss, mandril head diameter be greater than mandril shaft diameter, also
It is to say that mandril is that both ends diameter is big, mid diameter is small, therefore mandril can not be inserted directly into sleeve, in assembly, first by mandril
The body of rod is put into sleeve body, then collet head is connected with sleeve body, the last mandril body of rod and mandril head by assembly protrusion and
Assembling groove is attached, and by welding the second pin shaft, the mandril body of rod and mandril head are fixed together；When being set
When bar operates, the elastic force of Unscrew, spring bounces mandril automatically, so that mandril is to connecting rod just without the effect of compression
Power, connecting rod are separated with bar device is held.
Preferably, holding bar device further includes handle and handle and connecting rod, handle and connecting rod both ends respectively with sleeve and handle
Connection, handle and connecting rod include first connecting rod, second connecting rod and fixed ball, be inside first connecting rod and second connecting rod it is hollow, first
It is provided with the first fixinig plate and the first fixed link in connecting rod, the second fixinig plate and the second fixed link are provided in second connecting rod, Gu
Determine ball and be provided with card slot, the first card ball and the second card ball, one end of the first fixed link and the first fixinig plate spiral shell are provided in card slot
Line connection, the other end pass through card slot and are fixedly connected with the first card ball, and one end of the second fixed link is threadedly coupled with the second fixinig plate,
The other end passes through card slot and is fixedly connected with the second card ball.
In the above-mentioned technical solutions, by the way that first connecting rod between the first fixinig plate and the first fixed link, can be fixed and consolidated
Determine the angle between ball, between the second fixinig plate and the second fixed link, will can fix the angle of second connecting rod and fixed ball, into
And first connecting rod and second connecting rod can be combined into doctor and think angle to be used.
Preferably, it is provided with link block on sleeve, connecting groove is provided on link block, is arranged on handle and connecting rod
There is the connection bump being used cooperatively with connecting groove, circumferential welding, handle and connecting rod and hand are carried out at connecting groove and connection bump
Handle is welded to connect by circumferential.
In the above-mentioned technical solutions, sleeve and handle and connecting rod, handle and connecting rod pass through circumferential welding with handle and are attached,
So that this to hold bar device stronger.
Preferably, third pilot hole is provided on sleeve body, the gear of the restricted screw rod of setting in third pilot hole
Pin, screw rod are equipped with inner cross hole far from an end head of bending part.
In the above-mentioned technical solutions, backing pin is for preventing screw rod from falling off out of sleeve；Cross bore is acted on by screwdriver
Come up rotary screw, more laborsaving convenience；Cross bore is versatile, does not need the special screwdriver of additional customized.
Preferably, connection club head is connected through a screw thread with club shaft, connection club shaft and connector is connect.
Preferably, club head is connected, connector is TC4 material.
In the above-mentioned technical solutions, TC4 material is titanium alloy material, has good comprehensive mechanics mechanical performance, TC4 material
Matter can develop positioning under X-ray, when allowing to carry out Minimally Invasive Surgery, connect club head and connector can develop positioning under X-ray,
It is more convenient using the connecting rod.
Compared with prior art, the beneficial effects of the present invention are:
1, connection club shaft is PEEK material, high with the fusion rate of people's bone, slows down fusion gap adjacent to the regression in stage, no
It easily rubs with other fixed systems, the PEEK material body of rod is the Prebending type body of rod, meets lumbar physiological-curvature；Connecting rod bar
Head, connector are TC4 material, and when allowing to carry out Minimally Invasive Surgery, connecting club head and connector can develop positioning under X-ray, are made
It is more convenient with the connecting rod.
2, sleeve is substantially in bar portion shape, so that more pedicle nails can just be passed through when straight down by holding bar device；
It is acted on by screwdriver come rotary screw in cross bore, so that mandril clamp or release connecting rod, it is simpler to set bar operation；
The clamping recess and connecting rod of mandril head cooperate, so that holding the stronger clamping connecting rod of bar device.
3, this is held bar device and solves the problems, such as semi-rigid be fixed from applied to Minimally Invasive Surgery.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the Minimally Invasive Surgery instrument using PEEK connecting rod of the present invention；
Fig. 2 is a kind of structural schematic diagram of the connecting rod of the Minimally Invasive Surgery instrument using PEEK connecting rod of the present invention；
Fig. 3 is the enlarged structure schematic diagram at a kind of Minimally Invasive Surgery instrument A using PEEK connecting rod of the present invention；
Fig. 4 is the enlarged structure schematic diagram at a kind of Minimally Invasive Surgery instrument B using PEEK connecting rod of the present invention；
Fig. 5 is a kind of structural schematic diagram of the sleeve body of the Minimally Invasive Surgery instrument using PEEK connecting rod of the present invention；
Fig. 6 is a kind of three-view diagram of the collet head of the Minimally Invasive Surgery instrument using PEEK connecting rod of the present invention；
Fig. 7 is a kind of structural schematic diagram of the mandril body of rod of the Minimally Invasive Surgery instrument using PEEK connecting rod of the present invention；
Fig. 8 is a kind of structural schematic diagram of the mandril head of the Minimally Invasive Surgery instrument using PEEK connecting rod of the present invention.
In figure: 1- connecting rod, 2- collet head, 3- mandril head, the 4- mandril body of rod, 5- screw rod, 6- third pilot hole, 7-
The fixed ball of one fixinig plate, 8-, the second fixinig plate of 9-, 10- handle, 11- second connecting rod, the second fixed link of 12-, 13- first are fixed
Bar, 14- first connecting rod, 15- cross bore, 16- sleeve body, 17- spring, the first pilot hole of 18-, the second pilot hole of 19-, 20-
Two card balls, the first card of 21- ball, 22- card slot, 23- connecting groove, 24- limited block, 25- mandril boss, 26- assembly protrusion,
27- mandril shaft, 28- connection club head, 29- connection club shaft, 30- connector, 31 sleeves protrusion.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~8, in the embodiment of the present invention, a kind of Minimally Invasive Surgery instrument using PEEK connecting rod, the minimally invasive hand
Art instrument includes connecting rod 1 and holds bar device with what connecting rod 1 was used cooperatively, and connecting rod 1 includes sequentially connected connection club head
28, club shaft 29 and connector 30 are connected, connection club head 28 is cone shape, and connection club shaft 29 is the PEEK material body of rod, even
29 shape of the extension bar body of rod is arc, and connector 30 is cylindrical shape.
In the above-mentioned technical solutions, connection club head 28 is cone shape, is more easily pierced into soft tissue when in use, more
Skin is penetrated readily through to enter subcutaneously, connection club shaft 29 is the PEEK material body of rod, and PEEK material has high-intensitive and low stripping property,
The PEEK material body of rod and human body have good amalgamation, and connection 29 shape of club shaft is arc, and the PEEK material body of rod is pre-bending
The type body of rod, meets lumbar physiological-curvature.
Connector 30 is cylindrical shape, and the shape of cylinder is more wear resistant, is hardly damaged.
Holding bar device includes sleeve, mandril and screw rod 5, and sleeve is provided with bending part, and sleeve inner is hollow, mandril and screw rod
In 5 insertion sleeves, mandril is set to the lower section of bending part, and screw rod 5 is set to the top of bending part, and screw rod 5 is in bending part and top
Bar is in contact, and sleeve is provided with the opening for clamping connecting rod 1 close to one end of mandril.
In the above-mentioned technical solutions, the effect for clamping connecting rod 1 is realized.Screw rod 5 squeezes mandril in sleeve, and mandril will
Connecting rod 1 is pressed on sleeve, and the cooperation of both mandril and sleeve clamps connecting rod 1；Sleeve is provided with bending part, on the one hand rolls over
Crook is used to limit the position of mandril and screw rod 5, and on the other hand, the bending angle of bending part is at 10 degree to 15 degree, so that sleeve
It is whole substantially in the shape of a rod, so that more pedicle nails can just be passed through when straight down by holding bar device.
Sleeve includes collet head 2 and sleeve body 16, and collet head 2 is provided with sleeve recess, and collet head 2 is provided with recessed with sleeve
The first pilot hole 18, the first pilot hole 18 are provided in the sleeve protrusion 31 that slot is used cooperatively, sleeve recess and sleeve protrusion 31
It is inside provided with the first pin shaft, the first pin shaft is used to connect collet head 2 and sleeve body 16, the one end of sleeve body 16 far from collet head 2
It is provided with internal screw thread, the external screw thread with the screw-internal thread fit of sleeve body 16 is provided on screw rod 5, the opening for clamping connecting rod 1 is set
It sets on collet head 2, limited block 24 is provided in opening.
In the above-mentioned technical solutions, collet head 2 and sleeve body 16 are attached by sleeve protrusion 31 and sleeve recess, are led to
The first pin shaft of welding is crossed, collet head 2 and sleeve body 16 are fixed together, and collet head 2 and sleeve body 16 are not integral type knots
Structure but by being welded together, be the small structure of mid diameter in order to cooperate mandril both ends diameter big.Screw rod 5 and set
Cylinder 16 is connected through a screw thread, and convenient to achieve the purpose that squeeze mandril by tightening screw rod 5, limited block 24 is for limiting connection
The position of bar 1, so that mandril and collet head 2 just clamp the connector 30 of connecting rod 1.
Mandril includes the mandril body of rod 4 and mandril head 3, and the mandril body of rod 4 includes mandril boss 25 and mandril shaft 27, mandril
Shaft 27 is provided with assembly protrusion 26 far from one end of mandril boss 25, and one end of mandril head 3 is provided with and assembly protrusion 26
The assembling groove being used cooperatively, the other end of mandril head 3 are provided with the clamping recess being used cooperatively with connecting rod, mandril boss
25 diameter, the diameter of mandril head 3 are greater than the diameter of mandril shaft 27, are provided with spring 17, spring 17 on mandril shaft 27
Positioned between mandril boss 25 and sleeve protrusion 31, it is provided with the second pilot hole 19 on assembly protrusion 26 and assembling groove, the
The second pin shaft is provided in two pilot holes 19, the second pin shaft is used to connect the mandril body of rod 4 and mandril head 3.
In the above-mentioned technical solutions, the diameter of mandril boss 25, the diameter of mandril head 3 are straight greater than mandril shaft 27
Diameter, that is to say, that mandril is that both ends diameter is big, and mid diameter is small, therefore mandril can not be inserted directly into sleeve, in assembly, first
The mandril body of rod 4 is put into sleeve body 16, then collet head 2 and sleeve body 16 are connected, the last mandril body of rod 4 and mandril head 3
It is attached by assembly protrusion 26 and assembling groove, it is by welding the second pin shaft, the mandril body of rod 4 and mandril head 3 is fixed
It links together；When carrying out setting bar operation, the elastic force of Unscrew 5, spring 17 bounces mandril automatically, so that mandril is to even
Just without the active force of compression, connecting rod 1 separates extension bar 1 with bar device is held.
Holding bar device further includes handle 10 and handle and connecting rod, and handle and connecting rod both ends are connect with sleeve and handle 10 respectively, handle
Connecting rod includes first connecting rod 14, second connecting rod 11 and fixed ball 8, be inside first connecting rod 14 and second connecting rod 11 it is hollow, first
It is provided with the first fixinig plate 7 and the first fixed link 13 in connecting rod 14, it is solid that the second fixinig plate 9 and second is provided in second connecting rod 11
Fixed pole 12, fixed ball 8 are provided with card slot 22, the first card ball 21 and the second card ball 20, the first fixed link 13 are provided in card slot 22
One end be threadedly coupled with the first fixinig plate 7, the other end pass through card slot 22 be fixedly connected with the first card ball 21, the second fixed link 12
One end be threadedly coupled with the second fixinig plate 9, the other end pass through card slot 22 be fixedly connected with the second card ball 20.
In the above-mentioned technical solutions, by the way that first connecting rod 14 can be fixed between the first fixinig plate 7 and the first fixed link 13
The angle between fixed ball 8, it between the second fixinig plate 9 and the second fixed link 12, will can fix second connecting rod 11 and fix
The angle of ball 8, and then first connecting rod 14 and second connecting rod 11 can be combined into doctor and think angle to be used.
Be provided with link block on sleeve, connecting groove 23 be provided on link block, be provided on handle and connecting rod with connect it is recessed
Circumferential welding is carried out at the connection bump that slot 23 is used cooperatively, connecting groove 23 and connection bump, handle and connecting rod and handle 10 are logical
Cross circumferential welded connecting.
In the above-mentioned technical solutions, sleeve and handle and connecting rod, handle and connecting rod are connected by circumferential welding with handle 10
Connect so that this to hold bar device stronger.
Third pilot hole 6 is provided on sleeve body 16, the backing pin of the restricted screw rod 5 of setting, screw rod 5 in third pilot hole 6
An end head far from bending part is equipped with inner cross hole 15.
In the above-mentioned technical solutions, backing pin is for preventing screw rod 5 from falling off out of sleeve；Cross bore is acted on by screwdriver
Come rotary screw 5, more laborsaving convenience on 15；Cross bore 15 is versatile, does not need the special screwdriver of additional customized.
Connection club head 28 is connected through a screw thread with connector 30 with connecting club shaft 29, connect club shaft 29.
Connect club head 28, connector 30 is TC4 material.
In the above-mentioned technical solutions, TC4 material can develop positioning, when allowing to carry out Minimally Invasive Surgery, connecting rod under X-ray
Head 28 and connector 30 can develop positioning under X-ray, more convenient using the connecting rod 1.
When using the Minimally Invasive Surgery instrument, connecting rod 1 is inserted into collet head 2 openings, rotary screw 5 makes it to being pushed forward
Into and squeeze mandril until the arc groove of mandril head 3 is tightly pressed against in connecting rod 1, connecting rod 1, which is just fixed on, holds on bar device,
When carrying out setting bar operation, Unscrew 5, mandril is bounced by the elastic force of spring 17 to the direction far from connecting rod 1, mandril pair
Just without the active force of compression, connecting rod 1 separates connecting rod 1 with bar device is held, and sets bar completion.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (9)
1. a kind of Minimally Invasive Surgery instrument using PEEK connecting rod, it is characterised in that: the Minimally Invasive Surgery instrument includes connecting rod
(1) and with what connecting rod (1) was used cooperatively bar device is held, the connecting rod (1) includes sequentially connected connection club head (28), connects
The extension bar body of rod (29) and connector (30), the connection club head (28) are cone shape, and connection club shaft (29) shape is
Arc, the connector (30) are cylindrical shape.
2. a kind of Minimally Invasive Surgery instrument using PEEK connecting rod according to claim 1, it is characterised in that: the connection
Club shaft (29) is the PEEK material body of rod, and the bar device of holding includes that sleeve, mandril and screw rod (5), the sleeve are provided with bending
Place, the sleeve inner be it is hollow, the mandril and screw rod (5) insertion sleeve in, the mandril is set to the lower section of bending part,
The screw rod (5) is set to the top of bending part, and the screw rod (5) is in contact in bending part with mandril, and the sleeve is close to top
One end of bar is provided with the opening for clamping connecting rod (1).
3. a kind of Minimally Invasive Surgery instrument using PEEK connecting rod according to claim 2, it is characterised in that: the sleeve
Including collet head (2) and sleeve body (16), the sleeve body (16) is provided with sleeve recess, the collet head (2) be provided with
The sleeve that sleeve recess is used cooperatively is raised (31), is provided with the first pilot hole on the sleeve recess and sleeve raised (31)
(18), the first pin shaft is provided in first pilot hole (18), first pin shaft is used to connect collet head (2) and sleeve body
(16), the sleeve body (16) is provided with internal screw thread far from the one end of collet head (2), is provided on the screw rod (5) and sleeve
The external screw thread of the screw-internal thread fit of body (16), the opening for clamping connecting rod (1) are arranged on collet head (2), the opening
On be provided with limited block (24).
4. a kind of Minimally Invasive Surgery instrument using PEEK connecting rod according to claim 3, it is characterised in that: the mandril
Including the mandril body of rod (4) and mandril head (3), the mandril body of rod (4) includes mandril boss (25) and mandril shaft (27), institute
It states mandril shaft (27) and the one end of mandril boss (25) is provided with assembly protrusion (26), one end of the mandril head (3)
It is provided with the assembling groove being used cooperatively with assembly raised (26), the other end of the mandril head (3) is provided with and connecting rod
(1) clamping recess being used cooperatively, the diameter of the mandril boss (25), the diameter of mandril head (3) are greater than mandril shaft
(27) diameter is provided with spring (17) on the mandril shaft (27), the spring (17) be located in mandril boss (25) and
Between sleeve protrusion (31), it is provided with the second pilot hole (19) on the assembly raised (26) and assembling groove, described second leads
The second pin shaft is provided with into hole (19), second pin shaft is used to connect the mandril body of rod (4) and mandril head (3).
5. a kind of Minimally Invasive Surgery instrument using PEEK connecting rod according to claim 4, it is characterised in that: described to hold bar
Device further includes handle (10) and handle and connecting rod, and the handle and connecting rod both ends are connect with sleeve and handle (10) respectively, the handle
Connecting rod includes first connecting rod (14), second connecting rod (11) and fixes ball (8), in the first connecting rod (14) and second connecting rod (11)
Portion be it is hollow, is provided with the first fixinig plate (7) and the first fixed link (13), the second connecting rod in the first connecting rod (14)
(11) it is provided with the second fixinig plate (9) and the second fixed link (12) in, the fixed ball (8) is provided with card slot (22), the card
The first card ball (21) and the second card ball (20), one end of first fixed link (13) and the first fixinig plate are provided in slot (22)
(7) it is threadedly coupled, the other end passes through card slot (22) and is fixedly connected with the first card ball (21), one end of second fixed link (12)
It is threadedly coupled with the second fixinig plate (9), the other end passes through card slot (22) and is fixedly connected with the second card ball (20).
6. a kind of Minimally Invasive Surgery instrument using PEEK connecting rod according to claim 5, it is characterised in that: the sleeve
On be provided with link block, be provided with connecting groove (23), be provided on the handle and connecting rod and connecting groove on the link block
(23) circumferential welding, the handle and connecting rod are carried out at the connection bump being used cooperatively, the connecting groove (23) and connection bump
It is welded to connect with handle (10) by circumferential.
7. a kind of Minimally Invasive Surgery instrument using PEEK connecting rod according to claim 6, it is characterised in that: the sleeve
It is provided on body (16) third pilot hole (6), the backing pin of the restricted screw rod (5) of setting, the spiral shell in the third pilot hole (6)
Bar (5) is equipped with inner cross hole (15) far from an end head of bending part.
8. a kind of Minimally Invasive Surgery instrument using PEEK connecting rod according to claim 7, it is characterised in that: the connection
Club head (28) with connect club shaft (29), connection club shaft (29) is connected through a screw thread with connector (30).
9. a kind of Minimally Invasive Surgery instrument using PEEK connecting rod according to claim 8, it is characterised in that: the connection
Club head (28) is TC4 material head, the connector (30) is TC4 material connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035831.5A CN109758223B (en) | 2019-01-15 | 2019-01-15 | Minimally invasive surgical instrument using PEEK connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035831.5A CN109758223B (en) | 2019-01-15 | 2019-01-15 | Minimally invasive surgical instrument using PEEK connecting rod |
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| Publication Number | Publication Date |
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| CN109758223A true CN109758223A (en) | 2019-05-17 |
| CN109758223B CN109758223B (en) | 2021-05-25 |
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