CN209464050U - A kind of convenient device of femoral head taking-up - Google Patents
A kind of convenient device of femoral head taking-up Download PDFInfo
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- CN209464050U CN209464050U CN201920030465.XU CN201920030465U CN209464050U CN 209464050 U CN209464050 U CN 209464050U CN 201920030465 U CN201920030465 U CN 201920030465U CN 209464050 U CN209464050 U CN 209464050U
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- sleeve
- drilling rod
- femoral head
- rod
- spine
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Abstract
The utility model discloses a kind of femorals head to take out convenient device, including drilling rod, handle that drilling rod upper end is arranged in, the sleeve that the drill bit of drilling rod lower end is arranged in and is set on the outside of drilling rod；External screw thread line is provided on drilling rod；Internal thread is provided on the inside of sleeve；Fixed device is provided on sleeve lower position, including the steel pipe being arranged on sleeve and the spring that steel duct is arranged in；Spring upper end is connected with briquetting, and lower end is connected with link block；Briquetting is connected with bearing rod；Link block is connected with connecting rod；Connecting rod is connected with spine；One end of spine is rotatably arranged on the lower end position of sleeve；Reset spring is provided between spine and sleeve lower end surface；The centre of sleeve offers through-hole, holds bearing rod and moves up and down；The upper end of sleeve is provided with handrail；There is pressing plate on the middle position of drilling rod.Femoral head takes out convenient device good fixing effect, reduces big bleeding, operating time and the injury to femoral head surrounding tissue, improves the efficiency of operation.
Description
Technical field
The utility model relates to artificial hip joint replacing operation field of medical device more particularly to a kind of femoral head to take out
Convenient device.
Background technique
The diseases such as femoral neck fracture in elders, caput femoris necrosis, Hip osteoarthritis are clinically more common, at present
It carries out artificial full hip-joint replacement or artificial femoral head replacement is very reliable modus operandi.As modern artificial hip joint is set
The requirement of the progress and numerous patients of technology to mini-incision is changed, surgical wound is more and more small.But the following technology is difficult
Point one of be in the course of surgery it is how convenient, rapidly take out femoral head.In the past artificial hip joint replacing surgical procedure,
The patient of especially senile fracture of neck of femur, because femoral head bone is loose serious, cartilage surface is smooth, in addition in order to better
Capsula articularis coxae and hip joint surrounding soft tissue are protected, femoral head is taken out and expends very long operating time, this both increases intraoperative hemorrhage
Amount, and increase the art risk of gerontal patient.
Instantly, extraction apparatus for head of femur is in such a way that tip cone is fixed, such as Chinese patent document, application No. is
" 201620057105.5 ", in the utility model of entitled " a kind of medical extraction apparatus for head of femur ", in the surrounding of outer threaded tip
It is provided with tip cone, carries out the fixation in stage in art according to this.But there are certain drawbacks for the method, that is, are not fixed firmly,
Tip cone is inserted into femoral head, the active force needed is larger, is easy to give other connected taeniae telarums of femoral head centainly
The injury of degree, has much room for improvement.Based on this, the utility model proposes a kind of new femorals head to take out convenient device, can be rapid
Fixation and take out femoral head, greatly shorten operating time, intraoperative blood loss, reduce the incidence of intraoperative compliaction, thus more
Good raising clinical efficacy.
Utility model content
The purpose of the utility model is to provide a kind of femorals head to take out convenient device, and it is unstable to solve extraction apparatus for head of femur fixation
And the injury problem to its surrounding tissue.
In order to solve the above technical problems, the utility model adopts the following technical solution:
A kind of femoral head of the utility model takes out convenient device, including drilling rod, handle that the drilling rod upper end is arranged in, setting
Drill bit in the drilling rod lower end and the sleeve that is set on the outside of the drilling rod；External screw thread line is provided on the drilling rod；It is described
The internal thread matched with the external screw thread line is provided on the inside of sleeve；It is set on outside on the sleeve lower position
It is equipped with fixed device, the fixed device includes the steel pipe being arranged on the sleeve and the bullet that the steel duct is arranged in
Spring；The spring upper end is connected with briquetting, and lower end is connected with link block；The briquetting is connected with bearing rod；The link block connects
It is connected to connecting rod；The connecting rod is connected with spine；One end of the spine, which is rotatably arranged on the sleeve, is located at institute
It states on the lower end position of internal thread；Reset spring is provided between the spine and the sleeve lower end surface；The sleeve
Through-hole is offered on middle position, Rong Suoshu bearing rod moves up and down；The upper end of the sleeve is provided with handrail；The drilling rod
The pressing plate matched with the bearing rod is provided on middle position.
Further, the quantity at least two of the fixed device, circle distribution is on the sleeve.
Further, the concrete shape of the spine is arc.
Further, the drill bit is conical structure, is provided with screw thread on head.
Further, the concrete shape of the bearing rod is inverted L shape.
Further, the handrail is stainless steel material, is welded on the sleeve lateral surface.
Compared with prior art, the advantageous effects of the utility model:
During use, the bearing rod in fixed device can be under the action of drilling rod top board to pressure for the utility model
One power of block, briquetting drive compressed spring to move downward, and the link block being connected with spring moves together therewith, meanwhile, with company
The spine that the connected connecting rod of block is moved downward, and is attached thereto is connect to rotate inward, so, the tip position of spine
It is gradually inserted inside femoral head, plays fixed function.Meanwhile as drilling rod constantly moves downward, between spine and spine
Enclasping force it is bigger, i.e., it is more and more stronger to the fixed force of femoral head, ensure that femoral head takes out the stability of process, reduce big
Bleeding, operating time and the injury to femoral head surrounding tissue, improve the efficiency of operation.
Detailed description of the invention
The utility model is described in further detail for explanation with reference to the accompanying drawing.
Fig. 1 is that the utility model femoral head takes out convenient device main view；
Fig. 2 is that the utility model femoral head takes out convenient device cross-sectional view；
Fig. 3 is the enlarged drawing of A；
Description of symbols: 1, handle；2, drilling rod；3, sleeve；4, through-hole；5, fixed device；501, spring；502, it accepts
Bar；503, briquetting；504, steel pipe；505, link block；506, connecting rod；507, spine；508, reset spring；6, drill bit；7, it helps
Hand；8, pressing plate；9, external screw thread line；10, internal thread.
Specific embodiment
As shown in Figure 1, 2, 3, a kind of femoral head takes out convenient device, including drilling rod 2, is mounted on the hand of 2 upper end of drilling rod
Handle 1, the drill bit 6 for being mounted on 2 lower end of drilling rod and the sleeve 3 for being sleeved on 2 outside of drilling rod, the drill bit 6 is cone
Structure is provided with screw thread, rotational handle 1 on head, and drilling rod 2 can make rotating motion inside sleeve 3.Have on the drilling rod 2 outer
Threaded line 9, the sleeve have the internal thread 10 matched with the external screw thread line 9 on 3 inside, and two threaded lines match can
Realize lead screw transmission.
Fixed device 5 is welded on outside on 3 lower position of sleeve, the quantity of the fixed device 5 is at least
It is two, circle distribution is on the sleeve 3.The fixed device 5 includes the steel pipe 504 being welded on the sleeve 3 and peace
Spring 501 inside the steel pipe 504, wherein spring 501 plays the role of cushion effect, guarantees device in use process
In stability.501 upper end of spring is fixedly connected with briquetting 503, briquetting 503 mainly to spring 501 apply one to
Under power；Lower end is fixedly connected with link block 505, and link block 505 is object of the spring 501 directly by power effect thereon.It is described
Briquetting 503 is fixedly connected with bearing rod 502, and the concrete shape of the bearing rod 502 is inverted L shape, the effect in this of bearing rod 502
It is transmission force.The link block 505 is fixedly connected with connecting rod 506, and connecting rod 506 can directly make the power on link block 505
With on the spine 507 being firmly connected with it, to realize that spine 507 is inwardly filled the span of a man's arms, the concrete shape of the spine 507 is arc
Shape is just matched with the shape of femoral head, improves stability.One end of the spine 507 is rotatably mounted to described
On sleeve 3 on the lower end position of the internal thread 9, shape between 3 lower end of sleeve, spine 507 and connecting rod 506
At a disposable triangular structure, the angle between spine 507 and connecting rod 506 is smaller, then several spines 507 are in
The power that the heart is filled the span of a man's arms is bigger, and the effect of being fixedly clamped is stronger, otherwise smaller.The spine 507 and the sleeve are installed between 3 lower end surface
There is reset spring 508, can make in the case where not applying pressure to fixed device, spine 507, connecting rod 506, link block
505, spring 501, briquetting 503 and bearing rod 502 restore to the original state.Through-hole 4 is offered on the middle position of the sleeve 3,
The bearing rod 502 can be held to move up and down, guarantee that it moves required space, while also limiting drill bit 6 into femoral head
The distance of drilling avoids drilling femoral head, brings unnecessary injury to patient.The upper end position of the sleeve 3 has handrail 7,
The handrail 7 is stainless steel material, is welded on 3 lateral surface of sleeve.Be welded on the middle position of the drilling rod 2 with
The pressing plate 8 that the bearing rod 502 matches, for applying downward power to bearing rod 502.
The action process of the utility model is as follows:
In use process, operator first grasps handle 1, and presses downwards, and pressing plate 8 is made to be in contact with bearing rod 502,
And one power is given, bearing rod 502 drives briquetting 503 to move downward, then power passes through spring 501, link block 505 and connecting rod
It after 506, acts on spine 507, the spine 507 of 3 lower end of sleeve closes up to centre, just fixes femoral head.Later, after
Continue the power downward to 1 one, handle rotations, the external screw thread line on drilling rod 2 is meshed with the internal thread 10 on sleeve 3, so that boring
Bar 2 carries out lead screw transmission, moves down, meanwhile, drill bit 2 advances to femoral head internal rotating.In the process, drilling rod 2 continues
To fixed 5 one power of device, under the action of this power, fixed device 5 is higher and higher to the securement strength of femoral head, to protect
Stability and efficiency that drill bit 2 advances are demonstrate,proved, operating time is reduced, avoids big bleeding and the damage to surrounding tissue.
It should be noted that in above process, spring 501 not only acts as the effect of transmission force and stability, meanwhile,
Elasticity can reduce the distance that spring 501 moves down to a certain extent, so that enclasping force of the fixed device 5 to femoral head
Reaching operation makes the standard needed, and will not overexert, and damages to it.
Embodiment described above is only that the preferred embodiment of the utility model is described, not to the utility model
Range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are practical new to this
The various changes and improvements that the technical solution of type is made should all fall into the protection scope that the utility model claims book determines
It is interior.
Claims (6)
1. a kind of femoral head takes out convenient device, exist including drilling rod (2), setting in the handle (1) of the drilling rod (2) upper end, setting
The drill bit (6) of drilling rod (2) lower end and the sleeve (3) being set on the outside of the drilling rod (2)；It is provided on the drilling rod (2)
External screw thread line (9)；The internal thread (10) matched with the external screw thread line (9) is provided on sleeve (3) inside；It is special
Sign is: being provided with fixed device (5) on the outside on sleeve (3) lower position, the fixed device (5) includes setting
It sets the steel pipe (504) on the sleeve (3) and the spring (501) internal in the steel pipe (504) is set；The spring
(501) upper end is connected with briquetting (503), and lower end is connected with link block (505)；The briquetting (503) is connected with bearing rod
(502)；The link block (505) is connected with connecting rod (506)；The connecting rod (506) is connected with spine (507)；The point
One end of thorn (507) is rotatably arranged on the sleeve (3) on the lower end position of the internal thread (10)；It is described
Reset spring (508) are provided between spine (507) and the sleeve (3) lower end surface；It is opened on the middle position of the sleeve (3)
Equipped with through-hole (4), Rong Suoshu bearing rod (502) is moved up and down；The upper end of the sleeve (3) is provided with handrail (7)；The drilling rod
(2) pressing plate (8) matched with the bearing rod (502) is provided on middle position.
2. femoral head according to claim 1 takes out convenient device, it is characterised in that: the quantity of the fixed device (5) is extremely
It is less two, circle distribution is on the sleeve (3).
3. femoral head according to claim 1 takes out convenient device, it is characterised in that: the concrete shape of the spine (507)
For arc.
4. femoral head according to claim 1 takes out convenient device, it is characterised in that: the drill bit (6) is conical structure,
Screw thread is provided on head.
5. femoral head according to claim 1 takes out convenient device, it is characterised in that: the specific shape of the bearing rod (502)
Shape is inverted L shape.
6. femoral head according to claim 1 takes out convenient device, it is characterised in that: the handrail (7) is stainless steel
Matter is welded on the sleeve (3) lateral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920030465.XU CN209464050U (en) | 2019-01-09 | 2019-01-09 | A kind of convenient device of femoral head taking-up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920030465.XU CN209464050U (en) | 2019-01-09 | 2019-01-09 | A kind of convenient device of femoral head taking-up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209464050U true CN209464050U (en) | 2019-10-08 |
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ID=68091612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920030465.XU Active CN209464050U (en) | 2019-01-09 | 2019-01-09 | A kind of convenient device of femoral head taking-up |
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| CN (1) | CN209464050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940553A (en) * | 2019-12-21 | 2020-03-31 | 中山大学附属第一医院 | Femoral head cartilage sampler for electric experiment |
-
2019
- 2019-01-09 CN CN201920030465.XU patent/CN209464050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940553A (en) * | 2019-12-21 | 2020-03-31 | 中山大学附属第一医院 | Femoral head cartilage sampler for electric experiment |
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