CN114948122A

CN114948122A - Interventional department puncture device with adjustable puncture depth

Info

Publication number: CN114948122A
Application number: CN202210551201.5A
Authority: CN
Inventors: 齐永乐
Original assignee: Wuyang County People's Hospital
Current assignee: Wuyang County People's Hospital
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-08-30

Abstract

The invention is suitable for the field of medical instruments, and provides an interventional department puncture device with adjustable puncture depth, which comprises: the screw rod is rotatably arranged in the shell; the moving block is arranged in the shell in a sliding mode, a long barrel which is coaxial with the lead screw is fixedly arranged on the moving block, a linkage mechanism is arranged on the moving block, the linkage mechanism comprises a threaded sleeve which is rotatably arranged on the moving block, and the threaded sleeve is arranged on the lead screw in a threaded connection mode; the linkage mechanism further comprises a limiting support part matched with the threaded sleeve, and the moving block is further provided with an elastic support part used for connecting the limiting support part and the threaded sleeve; when the elastic supporting piece is in an unstressed state, the limiting supporting piece is connected with the threaded sleeve; the position of the stroke limiting mechanism is adjustable, and the stroke limiting mechanism is arranged on the shell and corresponds to the moving block. The invention can realize the adjustment of the puncture depth, so that the puncture depth can be controlled during puncture, and the use effect is good.

Description

Interventional department puncture device with adjustable puncture depth

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a puncture device with adjustable puncture depth for an interventional department.

Background

The interventional puncture is a new technology for further clinical diagnosis and treatment under the guidance of an ultrasonic probe under the guidance of imaging, can complete various puncture biopsies, can perform operations such as suction and intubation and medicine injection on some focuses, and can play a good complementary role in the range of a surgical operation which is difficult to reach or an operation forbidden region.

The patent document with the publication number of CN215129749U discloses a puncture outfit for interventional cardiology, which comprises a puncture sleeve, a cylindrical groove is formed in one side of the puncture sleeve, a puncture needle is sleeved on the inner portion of the puncture sleeve, a cylindrical block is fixedly mounted on one side, close to the puncture sleeve, of the puncture needle, a first circular ring block is sleeved on the outer surface of the puncture needle, three connecting rods are fixedly mounted on one side, far away from the cylindrical block, of the first circular ring block, a clamping block is fixedly mounted on the outer surface of the puncture needle, and a connecting plate is fixedly mounted between one end, far away from the first circular ring block, of the connecting rod.

A novel puncture needle for interventional therapy of cardiology is further disclosed in the patent document with publication number CN212213846U, which comprises a puncture needle, a syringe seat fixed at the tail end of the puncture needle, and an inner syringe sliding inside the puncture needle, wherein a sliding groove is formed in the outer side wall of the syringe seat along the moving direction of the inner syringe, and a shift lever is fixedly arranged at the tail end of the inner syringe and penetrates through the sliding groove; the puncture needle is inserted into a proper position, then the deflector rod is dialed by fingers, the inner needle cylinder extends out of the puncture needle, the liquid medicine hole is exposed, and then effusion extraction or medicine injection can be implemented.

Also, for example, patent document No. CN211213417U discloses a puncture outfit for clinical intervention in neurology, which includes a needle cylinder, one end of the needle cylinder is connected to a needle head connector communicating with the inner cavity, a retaining ring is fixed on the outer diameter of the other end of the needle cylinder, a piston and a supporting plate are respectively arranged inside the needle cylinder, a puncture needle is sleeved on the needle head connector, the puncture needle sucks a liquid medicine moving pressing plate, discharges air remaining in the needle cylinder, punctures the puncture needle into a blood vessel of a human body, injects the liquid medicine into the blood vessel, then continuously moves the pressing plate, when the piston is pressed, air in a first slot hole and a second slot hole is discharged, a spring is reduced, the piston is slowly compressed, so that the puncture needle head can pass through the piston, a guide wire is inserted into the needle head through a guide wire channel of a needle rod and the puncture needle head, the guide wire passes through the puncture needle head from the needle rod and enters the needle head, and finally enters the human body, the puncture is completed without taking down the needle cylinder.

However, the puncture device provided by the above scheme does not have the function of depth adjustment when in use, and when in puncture, the puncture depth of the puncture needle is often required to be adjusted so as to achieve the treatment efficiency.

Disclosure of Invention

The invention aims to provide a puncture depth-adjustable interventional department puncture device, and aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme.

An adjustable penetration depth interventional procedure penetration device comprising:

the screw rod is rotatably arranged in the shell;

the movable block is arranged in the shell in a sliding mode, a long barrel which is coaxial with the lead screw is fixedly arranged on the movable block, a linkage mechanism is arranged on the movable block, the linkage mechanism comprises a threaded sleeve which is rotatably arranged on the movable block, the threaded sleeve is arranged on the lead screw in a threaded connection mode, the linkage mechanism further comprises a limiting support piece which is matched with the threaded sleeve, and an elastic support piece which is used for enabling the limiting support piece to be connected with the threaded sleeve is further arranged on the movable block; when the elastic supporting piece is in a non-stressed state, the limiting supporting piece is connected with the threaded sleeve, the threaded sleeve does not rotate relative to the moving block, and at the moment, the threaded sleeve is installed on the lead screw in a threaded connection mode, the installed lead screw can drive the threaded sleeve to move, and the threaded sleeve is driven to rotate, namely, the moving block is driven to move in the shell because the threaded sleeve is only in rotational connection with the moving block and does not generate relative displacement;

the position of the stroke limiting mechanism is adjustable, and the stroke limiting mechanism is arranged on the shell and corresponds to the moving block.

In an embodiment of the present invention, the stroke limiting mechanism includes a rotating ring sleeve coaxially and rotatably sleeved on the outer ring of the housing, the housing is provided with a ring cavity corresponding to the rotating ring sleeve, the ring cavity is internally and movably provided with a limiting baffle, and an end of the limiting baffle extends into the housing.

In an embodiment provided by the invention, the end of the limit baffle extending into the ring cavity is fixedly connected with a fixed ring, the fixed ring is coaxially and rotatably arranged in a movable ring, that is, the movable ring and the fixed ring can relatively rotate, and the movable ring is sleeved on the shell in a threaded connection mode.

In one embodiment, the rotating ring sleeve and the moving ring are linked in a rotating direction, and the rotating ring sleeve and the moving ring slide relatively in a displacement direction.

In one embodiment of the invention, the limit baffle extending into the shell corresponds to the elastic support.

In one embodiment provided by the invention, the limiting support comprises a moving plate, and elastic support members are arranged on two sides of the moving plate; the movable plate is provided with a V-shaped channel; the limiting support piece further comprises a support tube fixedly installed in the moving block, a linkage groove is formed in the threaded sleeve, a linkage block matched with the linkage groove is arranged on the support tube in an elastic supporting mode, a guide rod matched with the V-shaped channel is fixedly installed on the linkage block, and it can be understood that when the elastic support piece is extruded, the moving plate moves, at the moment, the moving plate moves relative to the guide rod, the guide rod moves along the V-shaped channel, at the moment, the linkage block can be pulled out of the linkage groove, so that the limiting support piece and the threaded sleeve are in a separated state, and at the moment, a lead screw which continuously rotates cannot drive the moving block to continuously move; on the contrary, when the screw rod rotates reversely, the gradually-reset elastic support piece pushes the moving plate to reset, and the linkage block is abutted to the corresponding linkage groove, so that the threaded sleeve and the moving block are relatively fixed.

In one embodiment provided by the invention, the outer ring of the moving ring is provided with a limiting groove; the inner ring of the rotating ring sleeve is provided with a limiting convex strip matched with the limiting groove, so that the moving ring can generate displacement relative to the rotating ring sleeve, and the moving ring is synchronously driven to rotate when the rotating ring sleeve rotates;

the shell is provided with a strip-shaped channel communicated with the annular cavity, and the limiting baffle penetrates through the strip-shaped channel.

In one embodiment of the invention, the elastic support comprises a fulcrum fixedly connected with the moving plate, and a block is mounted at the end of the fulcrum; the fulcrum shaft penetrates through a side plate of the moving block in a sliding mode, the blocking block is connected with the moving block through a second spring, and the moving block is connected with the side plate of the moving block through a first spring.

In one embodiment provided by the invention, the rotation of the screw rod is adjusted through a driving part, the driving part is a double-shaft forward and reverse rotation motor, and one output shaft of the double-shaft forward and reverse rotation motor is in driving connection with the screw rod;

the base is installed to the casing tip, one side of base has main radiator-grid, the opposite side of base has the time radiator-grid, through the main radiator-grid and the time radiator-grid that set up for can form mobile air current in the base, heighten the radiating effect to the driving piece.

In one embodiment provided by the invention, the other output shaft of the double-shaft forward and reverse rotation motor is linked with a heat dissipation member arranged in a base, wherein the other output shaft of the double-shaft forward and reverse rotation motor is in transmission connection with a support shaft through a speed increaser, and the support shaft is linked with the heat dissipation member;

the heat dissipation piece is a fan, and a rotating shaft of the fan is connected with the supporting shaft in a chain wheel transmission mode.

Compared with the prior art, when the puncture device provided by the invention is used specifically, the inner wall of the side plate at the end part of the shell is taken as a first stroke position, and the position of the limit baffle is taken as a second stroke position; when the moving block moves in the shell to enable the elastic supporting piece to abut against the first stroke point, the elastic supporting piece is in a compressed state, so that the limiting supporting piece and the threaded sleeve are in a separated state at the moment, the threaded rod which rotates continuously drives the threaded sleeve to rotate synchronously at the moment, the moving block cannot be displaced, and the puncture needle is completely accommodated in the shell in the state at the moment; when the moving block moves in the shell to enable the elastic supporting piece to abut against the second stroke position, the elastic supporting piece is in a compressed state, so that the limiting supporting piece and the threaded sleeve are in a separated state at the moment, the lead screw which continuously rotates only drives the threaded sleeve to synchronously rotate at the moment, the moving block cannot be displaced, and the puncture needle extends out of the shell in the state at the moment;

the stroke limiting mechanism provided by the invention can be adjusted in position, so that the length of the puncture needle extending out of the shell is the required length, the adjustment of the puncture depth is realized, the puncture depth is controllable during puncture, and the problems that a traditional puncture device with a single structure needs a doctor to manually sense the puncture depth, the depth accuracy is limited, and bad emotion is easily brought to a patient are solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

FIG. 1 is a schematic view of an interventional device with adjustable penetration depth;

FIG. 2 is a schematic view of a portion A of the structure of FIG. 1;

FIG. 3 is a schematic view of the internal structure of the base of the puncture device for interventional department;

fig. 4 is a schematic structural view of an elastic limiting member according to the present invention;

FIG. 5 is a schematic structural view of an elastic support according to the present invention;

FIG. 6 is a schematic view of a portion B of FIG. 1;

fig. 7 is a partial perspective view of the travel limiting mechanism provided in the present invention.

In the accompanying fig. 1-7: 100. a housing; 101. a connection port; 102. an annular cavity; 103. rotating the ring sleeve; 104. a strip channel; 105. a limit baffle; 106. a fixing ring; 107. limiting convex strips; 108. a moving ring; 109. a limiting groove; 200. a base; 201. a primary heat dissipation network; 202. a secondary heat-dissipating mesh; 300. a double-shaft forward and reverse rotating motor; 301. a speed increaser; 302. a fan; 303. a support shaft; 400. a protective cover; 500. puncturing needles; 501. a long cylinder; 600. a screw rod; 601. a moving block; 700. a linkage mechanism; 701. a threaded sleeve; 702. a linkage groove; 703. supporting a cylinder; 704. a guide bar; 705. a linkage block; 706. moving the plate; 707. a V-shaped channel; 800. an elastic support member; 801. a fulcrum; 802. a first spring; 803. a second spring; 804. and (7) blocking.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Example 1

In one embodiment of the present invention, as shown in fig. 1-2, an interventional procedure puncture device with adjustable puncture depth comprises:

a screw 600 rotatably provided in the housing 100;

the moving block 601 is slidably arranged in the housing 100, a long cylinder 501 coaxially arranged with the lead screw 600 is fixedly arranged on the moving block 601, a linkage mechanism 700 is arranged on the moving block 601, the linkage mechanism 700 comprises a threaded sleeve 701 rotatably arranged on the moving block 601, the threaded sleeve 701 is arranged on the lead screw 600 in a threaded connection manner, the linkage mechanism 700 further comprises a limiting support part matched with the threaded sleeve 701, and an elastic support part 800 used for connecting the limiting support part and the threaded sleeve 701 is further arranged on the moving block 601; when the elastic support member 800 is in an unstressed state, the limiting support member is connected with the threaded sleeve 701, the threaded sleeve 701 does not rotate relative to the moving block 601 at this time, because the threaded sleeve 701 is installed on the lead screw 600 in a threaded connection manner, the installed lead screw 600 can drive the threaded sleeve 701 to move, and because the threaded sleeve 701 is only rotatably connected with the moving block 601 without relative displacement, the driving of the threaded sleeve 701 drives the moving block 601 to rotate, namely, the moving block 601 to move in the housing 100.

Further, with continuing reference to fig. 1, 2 and 6, in an embodiment of the present invention, the puncturing device further includes:

the position of the travel limiting mechanism is adjustable, and the travel limiting mechanism is arranged on the shell 100 and corresponds to the moving block 601.

The stroke limiting mechanism comprises a rotating ring sleeve 103 coaxially and rotatably sleeved on the outer ring of the shell 100, the shell 100 is provided with an annular cavity 102 corresponding to the rotating ring sleeve 103, a limiting baffle 105 is movably arranged in the annular cavity 102, and the end part of the limiting baffle 105 extends into the shell 100; stretch into spacing baffle 105 tip and solid fixed ring 106 fixed connection in the ring chamber 102, gu fixed ring 106 coaxial rotation locates in the shift ring 108, can relative rotation between shift ring 108 and the solid fixed ring 106 promptly, shift ring 108 overlaps through threaded connection mode and establishes on the casing 100, rotatory ring cover 103 with link in the direction of rotation between the shift ring 108, rotatory ring cover 103 with relative slip on the direction of displacement between the shift ring 108.

Further, in the embodiment of the present invention, the limit baffle 105 extending into the housing 100 corresponds to the elastic support member 800.

It can be understood that, when the puncturing device provided by the embodiment of the present invention is used specifically, the inner wall of the side plate at the end of the housing 100 is used as a first stroke position, and the position of the limiting baffle 105 is used as a second stroke position;

when the moving block 601 moves in the housing 100 to enable the elastic support piece 800 to abut against the first stroke point, at this time, the elastic support piece 800 is in a compressed state, so that the spacing support piece and the threaded sleeve 701 at this time are in a separated state, at this time, the lead screw 600 which continuously rotates only drives the threaded sleeve 701 to synchronously rotate, and the moving block 601 does not generate displacement, and at this time, the puncture needle 500 is completely accommodated in the housing 100;

on the contrary, when the moving block 601 moves in the housing 100 to make the elastic supporting element 800 abut against the second stroke point, at this time, the elastic supporting element 800 is in a compressed state, so that the spacing supporting element and the threaded sleeve 701 at this time are in a separated state, at this time, the lead screw 600 which continuously rotates only drives the threaded sleeve 701 to synchronously rotate, and the moving block 601 does not generate displacement, at this time, the puncture needle 500 extends out of the housing 100, and the extending length of the puncture needle 500 is related to the position of the second stroke point.

It will be appreciated that the travel stop mechanism provided by the present invention is adjustable in position so that the length of the needle 500 extending from the housing 100 is as long as desired, thereby allowing for adjustment of the depth of penetration, which may be adjusted prior to the lancing action, i.e., adjusting the position of the travel stop mechanism.

Example 2

In one embodiment of the present invention, as shown in fig. 1-2, an adjustable penetration depth interventional device comprises:

a screw 600 rotatably provided in the housing 100;

Further, with continuing reference to fig. 1, 2 and 6, in an embodiment of the present invention, the puncturing device further comprises:

The stroke limiting mechanism comprises a rotating ring sleeve 103 coaxially and rotatably sleeved on the outer ring of the shell 100, an annular cavity 102 corresponding to the rotating ring sleeve 103 is formed in the shell 100, a limiting baffle 105 is movably arranged in the annular cavity 102, and the end part of the limiting baffle 105 extends into the shell 100; stretch into spacing baffle 105 tip and solid fixed ring 106 fixed connection in the ring chamber 102, gu fixed ring 106 coaxial rotation locates in the shift ring 108, can relative rotation between shift ring 108 and the solid fixed ring 106 promptly, shift ring 108 overlaps through threaded connection mode and establishes on the casing 100, rotatory ring cover 103 with link in the direction of rotation between the shift ring 108, rotatory ring cover 103 with relative slip on the direction of displacement between the shift ring 108.

With continued reference to fig. 1, fig. 2, fig. 4 and fig. 5, in the embodiment of the present invention, the limiting support includes a moving plate 706, and elastic supports 800 are mounted on both sides of the moving plate 706; a V-shaped channel 707 is formed on the moving plate 706; the limiting support further comprises a support tube 703 fixedly installed in the moving block 601, a linkage groove 702 is formed in the threaded sleeve 701, a linkage block 705 matched with the linkage groove 702 is elastically supported on the support tube 703, and a guide rod 704 matched with the V-shaped channel 707 is fixedly installed on the linkage block 705; on the contrary, when the lead screw 600 rotates reversely, the gradually-returning elastic support 800 pushes the moving plate 706 to return, and the linkage block 705 abuts against the corresponding linkage groove 702, so that the threaded sleeve 701 and the moving block 601 are relatively fixed.

Further, as shown in fig. 6, in the embodiment of the present invention, a strip channel 104 communicated with the annular cavity 102 is formed on the housing 100, and the limit baffle 105 is disposed to penetrate through the strip channel 104.

Further, as shown in fig. 6-7, in the embodiment of the present invention, the outer ring of the moving ring 108 has a limiting groove 109; the inner ring of the rotating ring sleeve 103 has a position-limiting protrusion 107 engaged with the position-limiting groove 109, so that the moving ring 108 can be displaced relative to the rotating ring sleeve 103, and the moving ring 108 is synchronously driven to rotate when the rotating ring sleeve 103 rotates.

In the embodiment of the present invention, the adjustment of the second stroke position is the adjustment of the position of the limit baffle 105, the rotating ring sleeve 103 is rotated manually to drive the moving ring 108 to rotate, and since the moving ring 108 is sleeved on the housing 100 in a threaded connection manner, the rotating moving ring 108 generates displacement and drives the limit baffle 105 to move.

Example 3

a screw 600 rotatably provided in the housing 100;

the position of the stroke limiting mechanism is adjustable and is arranged on the shell 100, and the stroke limiting mechanism corresponds to the moving block 601.

With continued reference to fig. 1, fig. 2, fig. 4 and fig. 5, in the embodiment of the present invention, the limiting support includes a moving plate 706, and elastic supports 800 are mounted on both sides of the moving plate 706; a V-shaped channel 707 is formed on the moving plate 706; the limiting support further comprises a support tube 703 fixedly installed in the moving block 601, a linkage groove 702 is formed in the threaded sleeve 701, a linkage block 705 matched with the linkage groove 702 is elastically supported on the support tube 703, and a guide rod 704 matched with the V-shaped channel 707 is fixedly installed on the linkage block 705, so that it can be understood that when the elastic support 800 is squeezed, the moving plate 706 moves, at the moment, the moving plate 706 which moves relative to the guide rod 704 moves, so that the guide rod 704 moves along the V-shaped channel 707, and at the moment, the linkage block 705 can be pulled out from the linkage groove 702, so that the limiting support and the threaded sleeve 701 are in a separated state, and the moving block 601 cannot be driven to continuously move by the lead screw 600 which continuously rotates at the moment; on the contrary, when the lead screw 600 rotates reversely, the gradually-returning elastic support 800 pushes the moving plate 706 to return, and the linkage block 705 abuts against the corresponding linkage groove 702, so that the threaded sleeve 701 and the moving block 601 are relatively fixed.

Further, as shown in fig. 6-7, in the embodiment of the present invention, the outer ring of the moving ring 108 has a limiting groove 109; the inner ring of the rotating ring sleeve 103 is provided with a limiting protrusion 107 which is matched with the limiting groove 109, so that the moving ring 108 can be displaced relative to the rotating ring sleeve 103, and the moving ring 108 is synchronously driven to rotate when the rotating ring sleeve 103 rotates.

Further, in the embodiment of the present invention, the elastic supporting element 800 includes a fulcrum 801 fixedly connected to the moving plate 706, and a block 804 is mounted at an end of the fulcrum 801; the support shaft 801 is inserted through a side plate of the moving block 601, the stopper 804 is connected to the moving block 601 by a second spring 803, and the moving plate 706 is connected to a side plate of the moving block 601 by a first spring 802.

As shown in fig. 1, in the embodiment of the present invention, the end of the housing 100 has a connection port 101, and the puncture needle 500 extends from the connection port 101 to the outside of the housing 100; the end of the housing 100 is further provided with a protective cover 400 which is matched with the connecting port 101, the protective cover 400 is installed on the connecting port 101 in a threaded connection manner, and when the puncture device needs to be used, the protective cover 400 is rotated to be taken away from the connecting port 101; when the puncture device is not used, the puncture needle 500 is housed in the case 100, and the protector 400 is attached to the connection port 101 to protect it.

Referring to fig. 1 and fig. 3, in the embodiment of the present invention, the rotation of the screw 600 is adjusted by a driving member, the driving member is a dual-shaft forward and backward rotation motor 300, and an output shaft of the dual-shaft forward and backward rotation motor 300 is drivingly connected to the screw 600.

Further, as shown in fig. 1 and 3, in the embodiment of the present invention, a base 200 is mounted at an end of the housing 100, one side of the base 200 has a primary heat dissipation net 201, and the other side of the base 200 has a secondary heat dissipation net 202, so that a flowing air flow can be formed in the base 200 through the arrangement of the primary heat dissipation net 201 and the secondary heat dissipation net 202, thereby increasing a heat dissipation effect on the driving member.

The other output shaft of the double-shaft forward and reverse rotation motor 300 is linked with a heat sink arranged in the base 200, wherein the other output shaft of the double-shaft forward and reverse rotation motor 300 is in transmission connection with a support shaft 303 through a speed increaser 301, and the support shaft 303 is linked with the heat sink.

Preferably, the heat sink is a fan 302, and a rotating shaft of the fan 302 is connected with the supporting shaft 303 through a chain wheel transmission manner.

According to the invention, the fan 302 linked with the driving part ensures that the driving part is not overheated in the operation process and keeps the driving part in a good operation state.

The above embodiments are merely illustrative of a preferred embodiment, but not limiting. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.

The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept as defined by the claims and their equivalents.

Claims

1. An interventional procedure puncturing device with adjustable puncturing depth, comprising:

the screw rod is rotatably arranged in the shell;

the moving block is arranged in the shell in a sliding mode, a long barrel which is coaxial with the lead screw is fixedly arranged on the moving block, a linkage mechanism is arranged on the moving block, the linkage mechanism comprises a threaded sleeve which is rotatably arranged on the moving block, and the threaded sleeve is arranged on the lead screw in a threaded connection mode;

the linkage mechanism further comprises a limiting support part matched with the threaded sleeve, and an elastic support part used for connecting the limiting support part and the threaded sleeve is further arranged on the moving block;

when the elastic supporting piece is in an unstressed state, the limiting supporting piece is connected with the threaded sleeve;

2. The interventional department puncture device with the adjustable puncture depth as claimed in claim 1, wherein the stroke limiting mechanism comprises a rotating ring sleeve coaxially sleeved on the outer ring of the housing, the housing is provided with an annular cavity corresponding to the rotating ring sleeve, a limiting baffle is movably arranged in the annular cavity, and the end of the limiting baffle extends into the housing.

3. The interventional department puncture device with the adjustable puncture depth as claimed in claim 2, wherein the end of the limit baffle extending into the annular cavity is fixedly connected with a fixed ring, the fixed ring is coaxially and rotatably arranged in a movable ring, and the movable ring is sleeved on the housing in a threaded connection manner.

4. The adjustable penetration depth interventional procedure device of claim 3, wherein the rotational collar is rotationally coupled to the shift ring and the rotational collar slides relative to the shift ring in a displacement direction.

5. The interventional procedure puncturing device of any one of claims 2 to 4, wherein a stop extending into the housing corresponds to the resilient support member.

6. The interventional procedure puncturing device of claim 4, wherein the limiting support comprises a moving plate, and both sides of the moving plate are provided with the elastic supports; the movable plate is provided with a V-shaped channel; the limiting support piece further comprises a support cylinder fixedly installed in the moving block, a linkage groove is formed in the threaded sleeve, a linkage block matched with the linkage groove is arranged on the support cylinder in an elastic supporting mode, and a guide rod matched with the V-shaped channel is fixedly installed on the linkage block.

7. The interventional procedure device of claim 6, wherein the shift ring has a stop groove on an outer circumference thereof; the inner ring of the rotating ring sleeve is provided with a limiting convex strip matched with the limiting groove; the shell is provided with a strip-shaped channel communicated with the annular cavity, and the limiting baffle penetrates through the strip-shaped channel.

8. The adjustable penetration depth interventional procedure device of claim 4 or 7, wherein the resilient support comprises a fulcrum fixedly connected to the movable plate, the fulcrum having a stop mounted at an end thereof; the support shaft penetrates through a side plate of the moving block in a sliding mode, the blocking block is connected with the moving block through a second spring, and the moving block is connected with the side plate of the moving block through a first spring.

9. The interventional surgical puncture device with adjustable puncture depth according to claim 8, wherein the rotation of the lead screw is adjusted by a driving member, the driving member being a dual-shaft counter-rotating motor;

one output shaft of the double-shaft positive and negative rotation motor is in driving connection with the screw rod;

the base is installed to the casing tip, one side of base has main radiator-grid, the opposite side of base has the secondary radiator-grid.

10. The interventional department puncture device with the adjustable puncture depth according to claim 9, wherein the other output shaft of the double-shaft forward and reverse rotation motor is linked with a heat dissipation member arranged in the base;

the other output shaft of the double-shaft forward and reverse rotating motor is in transmission connection with a support shaft through a speed increaser, and the support shaft is linked with the heat radiating piece;

the heat dissipation member is a fan;

the rotating shaft of the fan is connected with the supporting shaft in a chain wheel transmission mode.