CN208503793U

CN208503793U - Clamp device and medical image acquisition device

Info

Publication number: CN208503793U
Application number: CN201820733395.XU
Authority: CN
Inventors: C·恩格尔克
Original assignee: Siemens AG
Current assignee: Siemens AG; Siemens Healthcare GmbH
Priority date: 2017-05-17
Filing date: 2018-05-17
Publication date: 2019-02-15
Anticipated expiration: 2028-05-17
Also published as: DE202017002644U1

Abstract

The utility model relates to clamp devices and medical image acquisition device.The clamp device is for connecting two components that can be moved relative to each other, including a screw shell (2) and across a tightening member (19) of the screw shell (2), the tightening member is electrically insulated by a seal (3) being arranged between screw shell (2) and tightening member (19) with screw shell (2), wherein tightening member (19) is quick tension element, including the eccentric rod (21) for passing through a screw rod (20) of seal (3) and being hinged at the screw rod, the eccentric rod is supported on seal (3) by a support (22).

Description

Clamp device and medical image acquisition device

Technical field

The utility model relates to a kind of for connecting the clamp device of can move relative to each other two components, two structures The part especially C-arm of regulating device and medical image acquisition device or G shape arm, the clamp device include screw shell and wear The tightening member of screw shell is crossed, the tightening member is and the seal being disposed between screw shell and tightening member It is electrically insulated with screw shell.

Background technique

For example, needing to compensate and tire out during manufacturing with pre-assembled when assembling the imaging system of medical image acquisition device The mechanical tolerance of long-pending all parts.For this purpose, usually using regulating device, it will such as radiation source, collimator or ROI filter by it The image-forming block of wave device (the interested region ROI=) etc and the C-arm or G shape of image capture device (such as X-ray apparatus) Arm connection.In the case where adjusting at the C-arm or G shape arm that unit is disposed in angiographic apparatus, it is necessary to pass through fastening Device ensures the separation of current potential, that is to say, that so that it is exhausted relative to cantilever crane to be fixed on the component on cantilever crane by regulating device Edge.

For this purpose, in the prior art using the individual clamp device for being in levelling screw form.These clamp devices include Screw shell, the screw shell are screwed into the respective screw hole at regulating device.Furthermore it also proposed a kind of the exhausted of multi-piece type Edge device, including passing through the cylinder sleeve of screw shell and to be arranged on the dead ring above and below screw shell, the dead ring Separate part be can be used as to install.Finally, fastening screw passes through seal, which passes through its head of screw branch in side Support is tightened on arm on seal, and in the other side, wherein cantilever crane further through seal and screw shell to Regulating device insulation.This problem of be, may result in spiral shell by finally tightening fastening screw (usually cylinder cover screw) Line bushing rotates together therewith, to can change the expectation setting being pre-adjusted.

Utility model content

The problem of the utility model is based on is that proposition is able to improved clamp device in contrast.

In order to solve this problem, it is provided in clamp device of the type mentioned at the beginning according to the utility model, tightening member For quick tension element, including the eccentric rod for passing through the screw rod of seal and being hinged at the screw rod, which passes through branch Seat supports are on seal.

According to the utility model, a kind of fast tensioning device is proposed as clamp device, there are all relevant fastenings Element and insulation component.The clamp device still includes screw shell and corresponding seal, and screw shell is exhausted by this Edge device is electrically insulated with actual tightening member, but can also insulate relative to C-arm or G shape arm.According to the utility model, Use quick tension element as tightening member.The tightening member has screw rod, which passes through screw shell or its liner Seal, and the screw rod can be screwed into the corresponding internal thread hole at cantilever crane using its external screw thread.It is hinged at screw rod There is (that is, swingably supporting) eccentric rod, which is supported on seal further through bearing element.That is, by This realizes regulating device relative to the completely insulated of cantilever crane.On the other hand, any due to no longer occurring in final tensioning Difficulty, so that assembly becomes easy.Because in order to finally block to the selected setting of locking, it is only necessary to rotate eccentric rod.Thus real Linear route is showed, so that fixed company can be established between cantilever crane and the regulating device being screwed into its threaded hole by screw shell It connects, wherein cantilever crane and regulating device are insulated from each other by seal.Due to the Linear tensioner realized herein, so being not in The rotation of undesirable screw-thread bush.In addition, locking is very easy to, because must only rotate eccentric rod.

In the improvement project of the utility model, seal itself includes the cylindrical sector across screw shell；With The radial flange prominent and adjacent with screw shell from cylindrical sector, support are located on the radial flange.Pass through the radial convex Edge, so that quickly tension element is relative to the screw shell insulation being mounted in regulating device.

In the improvement project of the utility model, if being not provided with independent insulating component, such as it is not provided with simple position In intermediate dead ring, then the radial flange adjacent with screw shell can be also provided at the other end of cylindrical sector. By second radial flange, so that screw shell is supported relative to cantilever crane, or make screw shell exhausted relative to cantilever crane Edge.

Preferably, screw shell has tapered extension, the cooperation of radial flange preferable shape in one or two endface Ground is joined in the tapered extension.Thus compact structure is obtained, because radial flange is preferably firm in form-fit fashion Admittedly be contained in tapered extension and be neutralized or be fixed.

The particularly advantageous improvement project of one of the utility model proposes that seal is two-piece type or three-member type, packet It includes: forming the first component of cylindrical sector；And the second component of at least one radial flange is formed, the first component and second Component is removably connected with each other, and wherein the connection can preferably be realized by clamping lock interconnecting piece or threaded joints. Therefore, it is proposed to which a kind of seal of multi-piece type, all includes first of section form cylindrical under any circumstance Part and the second component for constituting radial flange, it is also preferable to include another components for constituting the second radial flange, to then obtain Three-member type seal.These components are dismountable, but are filled in rigging position by clamping lock interconnecting piece or threaded joints Divide and is fixed to one another securely.This allows to particularly simple assemble.Since the component of seal can be positioned successively, but its It is installed to rigging position to be removably secured to one another later, preferably passes through clamping lock and connect.If can two components of pre-assembly, example Such as in the case where a cylindrical sector and a radial flange, also it is contemplated that being threadedly coupled.With multiple portions of seal Part is loosely installed and the prior art not being fixed to one another in rigging position is compared, and the above method can enable to Assemble multiple components more simply to realize seal.

As described above, eccentric rod support is on the support, support is supported on seal again.It, should according to the utility model Support can realize that the nut is located on seal by means of at least one nut being tightened on screw rod.The nut can also It can be longer, that is, can be designed to sleeve-shaped or the neck ring with sleeve-shaped or the like.

Advantageously, support has the second nut for being equally tightened on screw rod and supporting eccentric rod.That is, setting at this In meter scheme, using two independent nuts, one is on the seal, the first spiral shell for being supported at the seal Mother, and the other is the second nut of bearing or support eccentric rod.It now, can after two nuts are screwed on screw rod Change its distance to adjust tensile force.That is, the tensioning degree of settable whereby regulating device and cantilever crane.

Although the C-arm of regulating device and medical image acquisition device or the company of G shape arm are illustrated as embodiment above It connects, but clamp device according to the present utility model can be certainly also used to other components and equipment.It can be widely applied to following feelings Condition, that is, on the one hand two relatively-movable components answer mechanically fixed to each other and on the other hand answer electricity simultaneously in scheduled position Insulation.

Other than clamp device itself, the utility model further relates to a kind of medical image acquisition device, including C-arm or G shape arm and the radiation source at the C-arm or G shape arm is arranged in by regulating device.Image Acquisition according to the present utility model Device is characterized in that regulating device is fixed by the clamp device of multiple the above-mentioned types.

The regulating device of frame-like preferably passes through four clamp devices and is fixed.

It can be angiographic apparatus, wherein also existing other than radiation source in the specific range of image capture device Iris apparatus and/or filter are provided at regulating device, iris apparatus especially depth aperture, filter are especially ROI filter.

Detailed description of the invention

Other advantages and details of the utility model are obtained by embodiment explained below and with reference to attached drawing.Wherein:

Fig. 1 shows in cross section the schematic diagram of clamp device according to the present utility model,

The enlarged partial view that Fig. 2 shows the region II of Fig. 1 by showing multi-piece type seal, and

Fig. 3 shows the partial perspective view of medical image acquisition device according to the present utility model, the image capture device With being fixed on the regulating device at C-arm by using multiple clamp devices according to the present utility model.

Specific embodiment

Fig. 1 shows the cross-sectional view of clamp device 1 according to the present utility model, which opposite can move for connecting Two dynamic components such as connect the C-arm or G shape arm of regulating device and medical image acquisition device.Clamp device 1 includes tool There is externally threaded screw shell 2, screw shell 2 can be screwed into the respective screw hole of one of component by the external screw thread.This Outside, it is additionally provided with seal 3, is made of three components, and is shown with being amplified in Fig. 2.Seal 3 is on the one hand Including the first component 4, forms cylindrical sector and be embodied as form of sleeve.In addition, second component 5,6 there are two settings, It is arranged in the end of the first component 4.It is provided with corresponding clamping lock interconnecting piece 7,8 in order to connect, respectively includes construction the Corresponding lock part 9,10 or 11,12 at one component 4 and second component 5,6.As can be seen that the lock part 9 of the first component 4, 11 are caught in corresponding undercutting latch groove 13,14 to be fixed.This makes that seal 3 can be assembled according to assembly progress.

Second component 5,6 is respectively formed radial flange 15,16, and radial flange protrudes outward radially and has corresponding Conical by its shape, be bonded on second component and construct corresponding tapered recess 17,18 on the end face of screw shell 2 In.As shown in Fig. 2, two radial flanges 15,16, i.e. two components 5,6 are just over screw shell 2, lower section along end on observation Component 6 exceeds a little more than upper part 5.

In addition, clamp device 1 further includes quick tension element 19, with screw rod 20 and at the screw rod swingably The eccentric rod 21 of arrangement, the eccentric rod are supported at support 22, which is tightened on screw rod 20, or fixes in any way Ground is arranged at the screw rod.Support 22 is placed on seal 3, is disposed upon second component 5, i.e. radial flange 15 herein On, to be supported on seal 3, therefore, support 22 and the thread bush for as quick tension element 19 being metal component Cylinder 2 is electrically insulated.Eccentric rod 21 can be swung around pivot axis in known manner.The eccentric rod 21 is with its eccentric part 23 and support 22 attachments.According to different location, linear force or linear route can be generated by the swing of eccentric rod 21.This makes have screw shell 2 first components being screwed into its threaded hole can be opened with the second component for having screw rod 20 to be screwed into its threaded hole using lower free end Tightly.By Fig. 1 and Fig. 2 as it can be seen that second component rest on second component 6, i.e. lower part radial flange 16 on, thus equally whereby with Screw shell 2 insulate.Two components are electrically insulated from each other by seal 3 as a result,.

Screw shell 2 is threaded into hole during assembly, such as first.Then, support 22 is screwed to screw rod On 20, unless screw rod default setting has circulating type locating snap ring or the like.In the next step, assembly is exhausted in the following manner Edge device 3: that is, first shifting the second component 5 of top on screw rod 20 onto；Then, if connect not yet with second component 5, Then the first component 4, i.e. cylindrical sector are shifted on screw rod 20, until the two mutually locking.

Then, the part by screw rod together with seal is introduced together into screw shell, and from below by second Component 6 is shifted on screw rod 20 and is locked with the first component 4.Now, screw rod 20 can be screwed into the threaded hole of first component, and After positioning or alignment, component locking is completed by the swing of eccentric rod 21.

Fig. 3 shows the partial view of medical image acquisition device 24 according to the present utility model in the form of schematic diagram, Such as a part as angiographic apparatus.

The not C-arm of cover plate or G shape arm 25 are schematically illustrated, by using a total of four according to this reality at this With novel 1 secured adjusted device 26 of clamp device, radiation source and optional aperture are for example disposed at the regulating device 26 And/or filter.

The respective threaded rod 20 of corresponding clamp device 1 is screwed into the respective screw hole 27 at cantilever crane 25, wherein showing in Fig. 3 Two threaded holes are gone out.Screw shell 2 is screwed into corresponding threaded hole 28, wherein also illustrating two screw threads in Fig. 3 Sleeve.In such assembly, corresponding clamp device 1 is pacified using the radial flange 16 of its corresponding seal 3 It sets on cantilever crane 25, quick tension element 19 is equally insulated by seal 3 and regulating device 26.

In the clamp device 1 shown on the right side of Fig. 3, support 22 illustratively is formed by means of two nuts 29,30, this two A nut is tightened on screw rod 20.Lower nut 29 is located on seal 3 or radial flange 15.It is inclined that top nut 30 is used as support The actual support component of core bar 19.Two nuts 29,30 can and being screwed on screw rod 20 along axial direction away from each other or It is close.The axial tensile force or axial stroke of adjustable eccentric bar 19 as a result,.

However, this tool there are two nut 29,30 susceptor design be not necessarily it is necessary.Alternatively, can also be by It is realized in the flange with axial sleeve shape or the nut of collar 31, may refer to be arranged in cantilever crane 25 this side second is tight It is fixedly mounted with and sets 1.However, in this case, immutable lift.

Although being further described and describing the utility model, the utility model by preferred embodiment Not by disclosed exemplary limitation, and those skilled in the art can therefrom show that other variant schemes are practical without departing from this Novel protection scope.

Reference signs list

1 clamp device

2 screw shells

3 seals

4 components

5 components

6 components

7 clamping lock interconnecting pieces

8 clamping lock interconnecting pieces

9 lock parts

10 lock parts

11 lock parts

12 lock parts

13 latch grooves

14 latch grooves

15 radial flanges

16 radial flanges

17 recess portions

18 recess portions

19 quick tension elements

20 screw rods

21 eccentric rods

22 supports

23 eccentric parts

24 image capture devices

25 C-arms or G shape arm

26 regulating devices

27 threaded holes

28 threaded holes

29 nuts

30 nuts

31 nuts

Claims

1. a kind of clamp device, for connecting can move relative to each other two components, the clamp device includes a spiral shell Line sleeve (2) and a tightening member (19) for passing through the screw shell (2), the tightening member are described by being arranged in A seal (3) between screw shell (2) and the tightening member (19) is electrically insulated with the screw shell (2),

It is characterized in that,

The tightening member (19) is quick tension element, a screw rod (20) and hinge including passing through the seal (3) An eccentric rod (21) at the screw rod is connect, the eccentric rod is supported on the seal by a support (22) (3) on.

2. clamp device according to claim 1, which is characterized in that the seal (3) includes across the screw thread The cylindrical sector (4) of sleeve (2)；And it is prominent and one with the screw shell (2) adjoining from the cylindrical sector Radial flange (15), the support (22) are located on the radial flange.

3. clamp device according to claim 2, which is characterized in that at the other end of the cylindrical sector (4) It is provided with a radial flange (16) adjacent with the screw shell (2).

4. clamp device according to claim 2 or 3, which is characterized in that the screw shell (2) is at one or two end Side has tapered extension (17), and the radial flange (15,16) is bonded in the tapered extension.

5. clamp device according to claim 2 or 3, which is characterized in that the seal (3) is multi-piece type, packet It includes: forming the first component (4) of the cylindrical sector；And form the second component of at least one radial flange (15,16) (5,6), the first component is detachably connected from each other with the second component.

6. clamp device according to claim 5, which is characterized in that be provided be respectively formed a radial flange (15, 16) two second components (5,6).

7. clamp device according to claim 5, which is characterized in that the first component (4) and the second component (5, 6) it is connected to each other by clamping lock interconnecting piece or threaded joints.

8. clamp device according to any one of claim 1 to 3, which is characterized in that the support (22) has at least One nut (29,31), at least one described nut are screwed on the screw rod (20) and are located on the seal (3).

9. clamp device according to claim 8, which is characterized in that be provided be equally screwed on the screw rod (20) Two nuts (30), the eccentric rod (21) are supported on second nut.

10. clamp device according to claim 1, which is characterized in that described two components are regulating device (26) respectively With the C-arm or G shape arm (25) of medical image acquisition device (24).

11. clamp device according to claim 4, which is characterized in that the radial flange (15,16) shape-ordinatedly connects It closes in the tapered extension.

12. a kind of medical image acquisition device, comprising:

One C-arm or G shape arm (25), and

It is arranged in a radiation source at the C-arm or G shape arm by a regulating device (26),

It is characterized in that,

The regulating device (26) is fixed by multiple clamp devices (1) according to any one of the preceding claims.

13. medical image acquisition device according to claim 12, which is characterized in that the regulating device of frame-like (26) it is fixed by four clamp devices (1).

14. medical image acquisition device according to claim 12 or 13, which is characterized in that the medical image acquisition is set Standby is angiographic apparatus.

15. medical image acquisition device according to claim 14, which is characterized in that other than the radiation source, An iris apparatus and/or a filter are additionally provided at the regulating device (26).

16. medical image acquisition device according to claim 15, which is characterized in that the iris apparatus is depth light Circle.

17. medical image acquisition device according to claim 15, which is characterized in that the filter is ROI filtering Device.