CN220735936U

CN220735936U - Vascular sheath clamping and fixing structure for interventional operation

Info

Publication number: CN220735936U
Application number: CN202420418674.2U
Authority: CN
Inventors: 奉振球; 薛平旺
Original assignee: Beijing Zhongke Hongtai Medical Technology Co ltd
Current assignee: Beijing Zhongke Hongtai Medical Technology Co ltd
Priority date: 2024-03-05
Filing date: 2024-03-05
Publication date: 2024-04-09
Anticipated expiration: 2034-03-05

Abstract

The utility model relates to a blood vessel sheath clamping and fixing structure for interventional operation, which comprises a blood vessel sheath clamping part, a clamping part and a fixing part, wherein the blood vessel sheath clamping part comprises a clamping cover and a clamping seat which can be opened and closed to clamp the blood vessel sheath; the sheath clamp supporting part comprises an arm supporting plate, the arm supporting plate is connected with a supporting frame which can be lifted and moved along the length direction of the arm supporting plate and can be arranged above the limb of the patient in a striding way, and the vascular sheath clamp part can be fixedly or detachably connected to the supporting frame. The vascular sheath clamping part can clamp the vascular sheath, the catheter and the telescopic pipe structure simultaneously, the vascular sheath clamping part can be fixed on the sheath clamping supporting part, and the sheath clamping supporting part can fix the vascular sheath clamping part, the vascular sheath, the catheter and the telescopic pipe structure on the arm supporting plate, so that the connection and fixation of the vascular sheath and the telescopic pipe structure are satisfied.

Description

Vascular sheath clamping and fixing structure for interventional operation

Technical Field

The utility model relates to the technical field of interventional operations, in particular to a vascular sheath clamping and fixing structure for interventional operations.

Background

The vascular intervention operation is an operation mode that under the guidance of medical imaging equipment, interventional instruments such as a puncture needle, a catheter, a guide wire, a balloon, a bracket and the like are operated by an interventional doctor, and a specified instrument is delivered to a corresponding lesion part along a vascular access of a human body after percutaneous puncture, so that treatment is performed. As a minimally invasive treatment means, vascular interventional procedures have been widely used in interventional therapy of cardiovascular diseases, cerebrovascular diseases, peripheral vascular diseases and tumors.

In the vascular intervention operation, firstly, a radial artery or femoral artery is required to be punctured, a vascular sheath is inserted into a human body, then a catheter, a guide wire, a balloon catheter and the like can reach the position of a focus along an arterial access through the vascular sheath, and the traditional intervention operation is operated by a doctor, so that the vascular sheath is completed in a form of being held by a human hand.

When using the interventional operation robot, the delivery catheter is far away from the vascular sheath due to the delivery stress point, so the outer side of the catheter is also generally provided with a telescopic sleeve (forming a catheter jacket) with a telescopic function; the problem of connection and clamping of the vascular sheath and the catheter sheath is a problem to be solved urgently.

Therefore, the inventor provides a vascular sheath clamping and fixing structure for interventional operation by virtue of experience and practice in related industries for many years, so as to overcome the defects in the prior art.

Disclosure of Invention

The utility model aims to provide a vascular sheath clamping and fixing structure for interventional surgery, wherein a vascular sheath clamping part can clamp vascular sheath, a catheter and a telescopic tube structure simultaneously, and meanwhile, the vascular sheath clamping part can be fixed on a sheath clamping and supporting part, and the sheath clamping and supporting part can fix the vascular sheath clamping part, the vascular sheath, the catheter and the telescopic tube structure on an arm supporting plate, so that the connection and fixation of the vascular sheath and the telescopic tube structure are satisfied.

The utility model aims at realizing the structure for clamping and fixing the vascular sheath in the interventional operation, which comprises,

the vessel sheath clamping part comprises a clamping cover and a clamping seat which can be opened and closed to clamp the vessel sheath, and a first accommodating cavity for accommodating the vessel sheath, a second accommodating cavity for accommodating the catheter and a third accommodating cavity for accommodating the telescopic tube structure are arranged between the clamping cover and the clamping seat;

the sheath clamp supporting part comprises an arm supporting plate for supporting the limb of the patient, and a supporting frame which can be lifted and moved along the length direction of the arm supporting plate and can be arranged above the limb of the patient in a straddling way is connected to the arm supporting plate; the vessel sheath clamp can be fixedly or detachably connected to the support frame.

In a preferred embodiment of the present utility model, the support frame comprises a gantry capable of being straddled on a limb of a patient, the gantry comprises a top beam and Long Menzhu connected to two sides of the top beam, and bottom ends of two gantry columns are connected in clamping sliding sheets below the arm supporting plate in a lifting manner; the clamping sliding sheets are horizontally provided with a supporting plate locking cavity used for slidably penetrating the arm supporting plate.

In a preferred embodiment of the present utility model, two sides of the clamping slide sheet are provided with Long Menzhu locking cavities corresponding to two Long Menzhu respectively, a first threaded hole is provided on a side wall of each Long Menzhu locking cavity, and a first tightening screw capable of tightening or loosening Long Menzhu is inserted into the first threaded hole;

the bottom surface of the clamping sliding sheet is positioned at the position of the supporting plate locking cavity and is provided with a second threaded hole, and a second jacking screw capable of jacking or loosening the arm supporting plate is arranged in the second threaded hole in a penetrating mode.

In a preferred embodiment of the present utility model, the third accommodating cavity includes a spherical accommodating cavity for accommodating the end connector of the telescopic tube and a conical cavity for penetrating the telescopic tube extending outwards, which are sequentially communicated; the conical cavity is gradually widened from inside to outside, and the spherical accommodating cavity and the conical cavity allow the angle of the telescopic pipe to be adjustable.

In a preferred embodiment of the present utility model, an upper hemispherical groove is disposed on the bottom surface of the clamping cover, a lower hemispherical groove is disposed on the top surface of the clamping seat downward, a central angle of a cross section of the lower hemispherical groove is greater than 180 °, and the upper hemispherical groove and the lower hemispherical groove can be buckled to form the spherical accommodating cavity.

In a preferred embodiment of the present utility model, the first accommodating cavity includes a communicating cavity for passing through the surgical catheter and a body accommodating cavity for accommodating the vascular sheath body, the body accommodating cavity is disposed in communication with the communicating cavity, and the body accommodating cavity, the communicating cavity, the spherical accommodating cavity and the conical cavity are disposed coaxially and in communication; the second accommodating cavity is communicated with the body accommodating cavity in a first included angle.

In a preferred embodiment of the present utility model, the clamping cover is hinged to the clamping seat through a pin shaft disposed at one axial end or one lateral side of the clamping seat, and the clamping seat can be fixedly or detachably connected to the supporting frame; one side of the clamping cover and one side of the clamping seat are provided with locking units.

In a preferred embodiment of the present utility model, the locking unit includes a telescopic pin, a spring, a first connecting pin and a second connecting pin, the top surface of the clamping cover is provided with a limit groove, and one side of the clamping cover is provided with a first locking groove inwards; the second locking groove is communicated with the first locking groove at one side of the clamping seat, connecting holes are formed in two side walls of the second locking groove, the first connecting pin is arranged in the connecting holes in a penetrating mode, and a first pin through hole which is radially communicated is formed in the first connecting pin; the telescopic pin is provided with a second pin through hole which is penetrated in the radial direction, and the bottom end of the telescopic pin is provided with a limiting step part with the diameter increased; the spring is sleeved between the limiting step part and the first connecting pin, the telescopic pin penetrates through the first pin through hole and then extends to the upper portion of the clamping cover, and the second connecting pin penetrates through the second pin through hole and then is placed in the limiting groove.

In a preferred embodiment of the present utility model, the locking unit includes a buckle disposed at one side of the clip cover and a lock catch disposed at one side of the clip seat, and an unlocking snap fastener is disposed above the clip cover, where the buckle and the lock catch can be locked in a matching manner or unlocked and separated under the action of the unlocking snap fastener.

In a preferred embodiment of the present utility model, a clamping unit capable of being fastened and connected with the supporting frame is arranged at the bottom of the clamping seat; the clamping unit comprises a fixed clamping block and a movable clamping block, wherein the fixed clamping block is arranged at the bottom end of the clamping seat, and the movable clamping block is provided with an unlocking piece for pushing the movable clamping block to move; the fixed clamping block and the movable clamping block can be matched and clamped on the support frame, and/or the unlocking piece pushes the movable clamping block to be away from the fixed clamping block so as to be unlocked and separated from the support frame.

From the above, the vessel sheath clamping and fixing structure for interventional operation has the following beneficial effects:

in the vessel sheath clamping and fixing structure for interventional operation, the vessel sheath clamping part can clamp the vessel sheath, the catheter and the telescopic pipe structure simultaneously, the vessel sheath clamping part can be fixed on the sheath clamping and supporting part, and the sheath clamping and supporting part can fix the vessel sheath clamping part, the vessel sheath, the catheter and the telescopic pipe structure on the arm supporting plate, so that the connection and fixation of the vessel sheath and the telescopic pipe structure are satisfied;

the sheath clamping and supporting part adopts a supporting frame and an arm supporting plate matching structure which can be lifted and horizontally moved, so that the requirement of adjusting the placement position of the vascular sheath is met; the third accommodating cavity for accommodating the telescopic pipe structure comprises a spherical accommodating cavity and a conical cavity, so that the telescopic pipe structure can be adjusted at a certain angle conveniently; the telescopic tube can be clamped in the hemispherical groove in a micro interference manner, so that the clamping is convenient, the vessel sheath accommodating cavity can adapt to vessel sheaths of different specifications, and stable and reliable clamping force is provided;

the utility model combines the interventional operation flow to form a reliable vessel sheath clamping and fixing scheme.

Drawings

The following drawings are only for purposes of illustration and explanation of the present utility model and are not intended to limit the scope of the utility model. Wherein:

fig. 1: a schematic diagram of an embodiment of the vessel sheath clamping and fixing structure for interventional operation of the utility model is shown.

Fig. 2: is an exploded structural view of the first embodiment of the present utility model.

Fig. 3: a schematic diagram of a locking state of a vascular sheath clip according to the first embodiment of the present utility model.

Fig. 4: a schematic diagram of a partially disassembled state of a vascular sheath clip according to a first embodiment of the present utility model.

Fig. 5: an exploded structure view of a locking unit according to a first embodiment of the present utility model.

Fig. 6: a schematic diagram of an open state of a vascular sheath clip according to a second embodiment of the present utility model.

Fig. 7: a schematic diagram of a vascular sheath clip according to a second embodiment of the present utility model.

Fig. 8: is a front view of the vessel sheath clamp of the third embodiment of the present utility model.

Fig. 9: is a side-view orientation of a vascular sheath clip according to a third embodiment of the present utility model.

Fig. 10: is a schematic diagram of a telescopic pipe structure.

In the figure:

1. a sheath clip supporting part;

11. an arm support plate;

12. a support frame; 121. long Menzhu;

13. clamping the sliding vane; 131. a pallet locking cavity; 132. long Menzhu locking cavity;

141. a first tightening screw; 142. a second tightening screw;

2. a vessel sheath clip portion;

21. a clamping cover; 211. a limit groove; 212. a first locking groove;

22. a clamping seat; 221. a first lower semicircular groove; 222. a second lower semicircular groove; 223. a third lower semicircular groove; 224. A lower hemispherical groove; 225. a second locking groove; 226. a connection hole;

231. a first connecting pin; 2311. a first pin through hole; 232. a second connecting pin; 233. a spring; 234. a telescopic pin; 2341. a second pin through hole; 2342. a limit step part;

24. a pin shaft;

251. a buckle; 252. locking; 253. unlocking the snap fastener;

261. a fixed clamping block; 262. a movable clamping block; 263. unlocking the sheet;

3. a vascular sheath;

4. a conduit;

5. a telescopic tube structure; 51. and a telescopic pipe end joint.

Detailed Description

For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings.

The specific embodiments of the utility model described herein are for purposes of illustration only and are not to be construed as limiting the utility model in any way. Given the teachings of the present utility model, one of ordinary skill in the related art will contemplate any possible modification based on the present utility model, and such should be considered to be within the scope of the present utility model. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other in two elements, may be directly connected, or may be indirectly connected through an intermediary, and the specific meaning of the terms may be understood by those of ordinary skill in the art in view of the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 10, the present utility model provides a vascular sheath clamping and fixing structure for interventional procedures, comprising,

the vessel sheath clamping part 2 comprises a clamping cover 21 and a clamping seat 22 which can clamp the vessel sheath in an opening and closing way, and a first accommodating cavity for accommodating the vessel sheath 3, a second accommodating cavity for accommodating the catheter 4 and a third accommodating cavity for accommodating the telescopic pipe structure 5 are arranged between the clamping cover 21 and the clamping seat 22;

the sheath clamp supporting part 1 comprises an arm supporting plate 11 for supporting the limb of a patient, the arm supporting plate 11 is connected with a supporting frame 12 which can be lifted and moved along the length direction (horizontal direction in the figure) of the arm supporting plate and can be arranged above the limb of the patient in a straddling way, and the vascular sheath clamp part 2 can be fixedly or detachably connected to the supporting frame 12. The lifting (up-down adjustment) of the supporting frame meets the adjustment of the placement position of the vascular sheath.

In the vessel sheath clamping and fixing structure for interventional operation, the vessel sheath clamping part 2 can clamp the vessel sheath 3, the catheter 4 and the telescopic pipe structure 5 simultaneously, meanwhile, the vessel sheath clamping part 2 can be fixed on the sheath clamping and supporting part 1, and the sheath clamping and supporting part 1 can fix the vessel sheath clamping part 2, the vessel sheath 3, the catheter 4 and the telescopic pipe structure 5 on the arm supporting plate, so that the connection and fixation of the vessel sheath and the telescopic pipe structure are satisfied; the first accommodating cavity for accommodating the vascular sheath can adapt to vascular sheaths of different specifications and provide stable and reliable clamping force;

the sheath clamp supporting part 1 adopts a supporting frame 12 which can be lifted and moved and an arm supporting plate 11 matching structure, thereby meeting the requirement of the placement position adjustment of the vascular sheath.

Further, as shown in fig. 1 and 2, the support frame 12 comprises a portal frame capable of being arranged on the limb of the patient in a straddling manner, the portal frame comprises a top beam and Long Menzhu 121 connected to two sides of the top beam, and the bottom ends of the two portal posts 121 are connected in a clamping sliding sheet 13 below the arm supporting plate 11 in a lifting manner; the clamping slide 13 is horizontally provided with a pallet locking cavity 131 for slidably penetrating the arm pallet.

Further, as shown in fig. 2, two sides of the clamping slide piece 13 are provided with Long Menzhu locking cavities 132 corresponding to two gantry columns 121 respectively, the side wall of each gantry column locking cavity 132 is provided with a first threaded hole, and a first tightening screw 141 capable of tightening or loosening the gantry column 121 is penetrated in the first threaded hole;

the bottom surface of the clamping slide piece 13 is provided with a second threaded hole at the position of the supporting plate locking cavity 131, and a second jacking screw 142 capable of jacking or loosening the arm supporting plate 11 is arranged in the second threaded hole in a penetrating mode.

Further, as shown in fig. 4, the third accommodating chamber includes a spherical accommodating chamber for accommodating the extension tube end fitting 51 and a tapered chamber for penetrating the extension tube extending outward, which are sequentially communicated; the conical cavity is gradually expanded from inside to outside, and the spherical accommodating cavity and the conical cavity allow the angle of the telescopic pipe to be adjustable.

As shown in fig. 10, the outer shape of the telescopic tube end connector 51 is in a spherical shape, the accommodating cavity accommodating the telescopic tube end connector 51 is a spherical cavity, and the communicating accommodating cavity (opening groove) for accommodating the telescopic tube is a conical groove, so that the telescopic tube structure can be adjusted at a certain angle.

Further, as shown in fig. 4, the bottom surface of the clamping cover 21 is provided with an upper hemispherical groove upwards, the top surface of the clamping seat 22 is provided with a lower hemispherical groove 224 downwards, the central angle of the cross section of the lower hemispherical groove 224 is larger than 180 degrees, and the upper hemispherical groove and the lower hemispherical groove 224 can be buckled to form a spherical accommodating cavity.

The central angle of the cross section of the lower hemispherical groove 224 is larger than 180 degrees, so that the lower hemispherical groove 224 has a certain interference to the telescopic tube end connector 51, and when the telescopic tube end connector 51 is buckled in place but the clamping cover 21 is not closed for locking operation, the lower hemispherical groove is not supported by manpower and cannot fall off, and the vascular sheath 3 is convenient to install and connect.

In one embodiment of the present utility model, the telescopic tube structure 5 is a three-stage telescopic structure, and its structural form is not limited to a circular tube, but is not limited to a three-stage tube.

Further, the first accommodating cavity comprises a communicating cavity which is communicated and arranged and used for penetrating the operation catheter (in the prior art, penetrating the telescopic tube structure and pushing the operation catheter through the vascular sheath by the telescopic tube structure) and a body accommodating cavity which is used for accommodating the vascular sheath body (in the prior art), the communicating cavity is communicated with the body accommodating cavity and the spherical accommodating cavity, and the body accommodating cavity, the communicating cavity, the spherical accommodating cavity and the conical cavity are coaxially communicated (form a channel of the communicated operation catheter); the second holds the chamber and is first contained angle intercommunication setting with body holding chamber, and in this embodiment, the pipe is perpendicular to be connected with the vascular sheath, then the second holds the chamber and is the crossing setting of right angle with body holding chamber.

Further, as shown in fig. 4, the bottom surface of the clamping cover 21 is provided with a first upper semicircular groove, a second upper semicircular groove and a third upper semicircular groove upwards, the top surface of the clamping seat 22 is provided with a first lower semicircular groove 221, a second lower semicircular groove 222 and a third lower semicircular groove 223 downwards, and the first upper semicircular groove and the first lower semicircular groove 221 can be buckled to form a communication cavity; the second upper semicircular groove and the second lower semicircular groove 222 can be buckled to form a body accommodating cavity; the third upper semicircular groove and the third lower semicircular groove 223 can be buckled to form a second accommodating cavity.

The dimensions of the first upper semicircular groove, the second upper semicircular groove, the third upper semicircular groove, the first lower semicircular groove 221, the second lower semicircular groove 222 and the third lower semicircular groove 223 are determined according to actual use, and are determined by the dimensions of the vascular sheath and the catheter, respectively.

Further, as shown in fig. 2, 3, 6, 7, 8 and 9, the clamping cover 21 is hinged to the clamping seat 22 through a pin 24 arranged at one axial end or one lateral side of the clamping seat 22, and the clamping seat 22 can be fixedly or detachably connected to the supporting frame 12; one side of the clip cover 21 and the clip seat 22 is provided with a locking unit.

Further, as shown in fig. 6, 7, 8 and 9, when the holder 22 is detachably connected to the support frame 12, a clamping unit capable of being fastened to the support frame 12 is disposed at the bottom of the holder 22; the clamping unit comprises a fixed clamping block 261 and a movable clamping block 262 which are arranged at the bottom end of the clamping seat 22, and an unlocking piece 263 which is used for pushing the movable clamping block to move is arranged on the movable clamping block 262; the fixed clamping block 261 and the movable clamping block 262 can be matched and clamped on the support frame 12, and/or the unlocking piece 263 pushes the movable clamping block 262 to be away from the fixed clamping block 261 so as to be unlocked and separated from the support frame 12.

As shown in fig. 1, 2, 3 and 4, in the first embodiment of the present utility model, the pin 24 is disposed on one lateral side of the holder 22, the side wall of the holder 22 is provided with a hinge groove, the side wall of the hinge groove is provided with a hinge outer hole, one side of the holder cover 21 is provided with a hinge projection, the hinge projection is provided with a hinge inner hole, and the hinge outer hole and the hinge inner hole are penetrated by the pin. The holder 22 is fixedly connected to the support frame 12.

As shown in fig. 1, 2 and 5, the locking unit includes a telescopic pin 234, a spring 233, a first connection pin 231 and a second connection pin 232, a limit groove 211 is provided on the top surface of the clip cover 21, and a first locking groove 212 is provided inward on one side of the clip cover 21; the second locking groove 225 is communicated with the first locking groove 212 at one side of the clamping seat 22, connecting holes 226 are formed in two side walls of the second locking groove 225, first connecting pins 231 are penetrated in the connecting holes 226, and first pin through holes 2311 which are radially communicated are formed in the first connecting pins 231; the telescopic pin 234 is provided with a second pin through hole 2341 which is penetrated in the radial direction, and the bottom end of the telescopic pin 234 is provided with a limiting step part 2342 with the diameter increased; the spring 233 is sleeved between the limiting step portion 2342 and the first connecting pin 231, the telescopic pin 234 passes through the first pin through hole 2311 and then extends to the upper side of the clamping cover 21, and the second connecting pin 232 passes through the second pin through hole 2341 and then is placed in the limiting groove 211.

In the working process, the vascular sheath 3 is clamped in the first accommodating cavity, the catheter 4 is clamped in the second accommodating cavity, the telescopic tube structure 5 is clamped in the third accommodating cavity, the clamp cover 21 is buckled and covered with the clamp seat 22, the first connecting pin 231 is penetrated in the connecting hole 226, the spring 233 is sleeved on the telescopic pin 234, the bottom end of the spring 233 abuts against the limiting step part 2342, the telescopic pin 234 extends upwards to the upper side of the clamp cover 21 after penetrating through the first pin through hole 2311 on the first connecting pin 231, the second connecting pin 232 penetrates through the second pin through hole 2341 and is arranged in the limiting groove 211 (the second connecting pin 232 is in interference connection with the second pin through hole 2341), and the first connecting pin 231, the second connecting pin 232, the spring 233 and the telescopic pin 234 jointly form an elastic locking pressure rod, and the locking unit is locked and tightly pressed with the clamp cover 21 and the clamp seat 22.

When unlocking, the second connecting pin 232 and the telescopic pin 234 are pulled upwards, the second connecting pin 232 is separated from the limiting groove 211, the clamp cover 21 and the clamp seat 22 are unlocked, and after the clamp cover 21 is opened, the vascular sheath 3, the catheter 4 and the telescopic tube structure 5 are taken out.

As shown in fig. 6 and 7, in the second embodiment of the present utility model, the pin 24 is disposed on one lateral side of the holder 22, the side wall of the holder 22 is provided with a hinge groove, the side wall of the hinge groove is provided with a hinge outer hole, one side of the holder cover 21 is provided with a hinge projection, the hinge projection is provided with a hinge inner hole, and the pin is inserted into the hinge outer hole and the hinge inner hole. The holder 22 is detachably connected to the support frame 12.

The other side of the clamping cover 21 is provided with a buckle 251 extending downwards near one end of the conical cavity, one side of the clamping seat 22 is provided with a lock catch 252 protruding outwards, and when the clamping cover 21 is buckled on the clamping seat 22, the buckle 251 and the lock catch 252 are in clamping fit to lock the clamping cover 21 and the clamping seat 22.

An upwardly extending unlocking snap 253 is provided in pairs at the end of the upper part of the clip cover 21 remote from the pin shaft. When the clip cover 21 and the clip seat 22 are unlocked, the pair of unlocking buttons 253 are manually pressed, so that the buttons 251 and the locking catches 252 are separated from the clip cover 21 and the clip seat 22.

The support frame 12 is provided with a flange and a flange groove; when the clamping unit is in buckle connection with the support frame 12, the fixed clamping block 261 is clamped into the flange groove, and the movable clamping block 262 is clamped at the flange, so that the connection and fixation of the vessel sheath clamping part 2 and the support frame 12 are realized. During unlocking, the unlocking plate 263 is manually pushed to drive the movable clamping block 262 to leave the flange, and the fixed clamping block 261 is manually moved away from the flange groove by removing the vessel sheath clamping part 2, so that the vessel sheath clamping part 2 and the supporting frame 12 are unlocked.

As shown in fig. 8 and 9, in the third embodiment of the present utility model, the pin 24 is disposed at one axial end of the holder 22, and the axial end selects one end of the holder 22 where the conical cavity is disposed; the two side walls of the clamping seat 22 are respectively provided with a hinged inner hole, the two side walls of the clamping cover 21 are respectively provided with a hinged outer hole at positions corresponding to the two hinged inner holes, and a pin shaft 24 is respectively penetrated in the hinged outer hole and the hinged inner hole at each side. The holder 22 is detachably connected to the support frame 12.

One side of the clamping cover 21 far away from the end of the pin shaft 24 is provided with a buckle 251 extending downwards, one side of the clamping seat 22 far away from the end of the pin shaft 24 is provided with a buckle 252 protruding outwards, and when the clamping cover 21 is buckled on the clamping seat 22, the buckle 251 is clamped with the buckle 252, and the clamping cover 21 is matched and locked with the clamping seat 22.

An upwardly extending unlocking snap 253 is provided in pairs at the end of the upper part of the clip cover 21 remote from the pin 24. When the clip cover 21 and the clip seat 22 are unlocked, the pair of unlocking buttons 253 are manually pressed, so that the buttons 251 and the locking buttons 252 are separated from each other for unlocking.

The foregoing is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this utility model, and are intended to be within the scope of this utility model.

Claims

1. A blood vessel sheath clamping and fixing structure for interventional operation is characterized by comprising,

the sheath clamp supporting part comprises an arm supporting plate used for supporting limbs of a patient, the arm supporting plate is connected with a supporting frame which can be lifted and moved along the length direction of the arm supporting plate and can be arranged above the limbs of the patient in a striding mode, and the vascular sheath clamp part can be fixedly or detachably connected to the supporting frame.

2. The interventional procedure vessel sheath clamping and fixing structure of claim 1, wherein the support frame comprises a portal frame capable of being arranged on a limb of a patient in a straddling manner, the portal frame comprises a top beam and Long Menzhu connected to two sides of the top beam, and bottom ends of two portal posts are connected in clamping sliding sheets below the arm supporting plate in a lifting manner; the clamping sliding sheets are horizontally provided with a supporting plate locking cavity used for slidably penetrating the arm supporting plate.

3. The interventional operation vascular sheath clamping and fixing structure according to claim 2, wherein Long Menzhu locking cavities corresponding to the two Long Menzhu are respectively arranged on two sides of the clamping slide sheet, a first threaded hole is arranged on the side wall of each Long Menzhu locking cavity, and a first tightening screw capable of tightening or loosening the Long Menzhu is arranged in the first threaded hole in a penetrating manner;

4. The interventional procedure vessel sheath clamping and fixing structure according to claim 1, wherein the third accommodating cavity comprises a spherical accommodating cavity for accommodating an end joint of the telescopic tube and a conical cavity for penetrating the telescopic tube extending outwards, which are sequentially communicated; the conical cavity is gradually widened from inside to outside, and the spherical accommodating cavity and the conical cavity allow the angle of the telescopic pipe to be adjustable.

5. The interventional operation vascular sheath clamping and fixing structure according to claim 4, wherein an upper hemispherical groove is formed in the bottom surface of the clamping cover upwards, a lower hemispherical groove is formed in the top surface of the clamping seat downwards, the central angle of the cross section of the lower hemispherical groove is larger than 180 degrees, and the upper hemispherical groove and the lower hemispherical groove can be buckled to form the spherical accommodating cavity.

6. The interventional procedure vessel sheath clamping and fixing structure according to claim 4, wherein the first accommodating cavity comprises a communicating cavity which is communicated with the first accommodating cavity and is used for penetrating through a surgical catheter and a body accommodating cavity which is communicated with the communicating cavity and is used for accommodating a vessel sheath body, and the body accommodating cavity, the communicating cavity, the spherical accommodating cavity and the conical cavity are coaxially communicated; the second accommodating cavity is communicated with the body accommodating cavity in a first included angle.

7. The interventional vascular sheath clamping and fixing structure according to claim 1, wherein the clamping cover is hinged to the clamping seat through a pin shaft arranged at one axial end or one lateral side of the clamping seat, and the clamping seat can be fixedly or detachably connected to the supporting frame; one side of the clamping cover and one side of the clamping seat are provided with locking units.

8. The interventional vascular sheath clamping and fixing structure according to claim 7, wherein the locking unit comprises a telescopic pin, a spring, a first connecting pin and a second connecting pin, a limiting groove is formed in the top surface of the clamping cover, and a first locking groove is formed in one side of the clamping cover inwards; the second locking groove is communicated with the first locking groove at one side of the clamping seat, connecting holes are formed in two side walls of the second locking groove, the first connecting pin is arranged in the connecting holes in a penetrating mode, and a first pin through hole which is radially communicated is formed in the first connecting pin; the telescopic pin is provided with a second pin through hole which is penetrated in the radial direction, and the bottom end of the telescopic pin is provided with a limiting step part with the diameter increased; the spring is sleeved between the limiting step part and the first connecting pin, the telescopic pin penetrates through the first pin through hole and then extends to the upper portion of the clamping cover, and the second connecting pin penetrates through the second pin through hole and then is placed in the limiting groove.

9. The interventional vascular sheath clamping and fixing structure according to claim 7, wherein the locking unit comprises a buckle arranged on one side of the clamping cover and a lock catch arranged on one side of the clamping seat, an unlocking snap fastener is arranged above the clamping cover, and the buckle and the lock catch can be matched for locking or unlocking and separating under the action of the unlocking snap fastener.

10. The interventional operation vascular sheath clamping and fixing structure according to claim 1, wherein a clamping unit capable of being in fastening connection with the supporting frame is arranged at the bottom of the clamping seat; the clamping unit comprises a fixed clamping block and a movable clamping block, wherein the fixed clamping block is arranged at the bottom end of the clamping seat, and the movable clamping block is provided with an unlocking piece for pushing the movable clamping block to move; the fixed clamping block and the movable clamping block can be matched and clamped on the support frame, and/or the unlocking piece pushes the movable clamping block to be away from the fixed clamping block so as to be unlocked and separated from the support frame.