CN218774150U

CN218774150U - Subcutaneous implantation device for liver cancer chemotherapy

Info

Publication number: CN218774150U
Application number: CN202222077516.9U
Authority: CN
Inventors: 肖芦山; 崔浩; 曾琳; 王家仁; 李燕
Original assignee: Southern Hospital Southern Medical University
Current assignee: Southern Hospital Southern Medical University
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-03-31
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a device is implanted in subcutaneous of liver cancer chemotherapy, include: the main body mechanism comprises an upper sleeve and a lower sleeve, the upper sleeve and the lower sleeve are coaxially arranged, a gap is formed between the upper sleeve and the lower sleeve to form an extrusion cavity, guide pipes penetrate through the upper sleeve and the lower sleeve, and the outer walls of the guide pipes are fixedly connected with the inner wall of the upper sleeve and the inner wall of the lower sleeve respectively; the driving mechanism comprises a rotating assembly and an extrusion assembly, the rotating assembly covers the top ends of the upper sleeve and the lower sleeve, and the rotating assembly is rotatably connected with the upper sleeve and the lower sleeve; the extrusion subassembly specifically is two, and the extrusion subassembly includes the extruded article, and the extruded article slides and sets up in the extrusion intracavity, and two extruded articles set up along the pipe symmetry, and extruded article one end is connected with the runner assembly transmission, the other end and pipe outer wall butt, the utility model is simple in operation is convenient, has improved the security that the patient was carrying out subcutaneous implantation perfusion treatment in-process.

Description

Subcutaneous implantation device for liver cancer chemotherapy

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a subcutaneous implantation device for liver cancer chemotherapy.

Background

The continuous instillation of anticancer medicine into hepatic artery intubation (subcutaneous implantation) is suitable for treating liver cancer patient who can not be resected or has been resected with palliative effect.

And prior art CN206325103U discloses a subcutaneous implantation type device for liver cancer chemotherapy, fix whole base through the fixed orifices on the base, through interveneeing the puncture intubate, implant the hepatic artery to the pipe, during the injection, insert the silica gel puncture window with special injection device, the medicine flows in the cavity in the base, the inner chamber diminishes from the top down gradually, the medicine makes the check valve open and reaches the hepatic artery along the pipe, reach the treatment purpose, after the injection is accomplished, the check valve is closed and is made the medicine can not flow back. However, in the clinical process, the medicine needs to be injected for many times, and the technical scheme adopts the mode that the silica gel puncture window plugs the catheter, so that when the silica gel puncture window is punctured for many times, silica gel puncture scraps can enter blood along with the liquid medicine, and further harm is caused to a patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a subcutaneous implantation device for liver cancer chemotherapy to solve the problems existing in the prior art.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides a device is implanted in subcutaneous of liver cancer chemotherapy, include:

the main body mechanism comprises an upper sleeve and a lower sleeve, the upper sleeve and the lower sleeve are coaxially arranged, a gap is formed between the upper sleeve and the lower sleeve to form an extrusion cavity, a guide pipe penetrates through the upper sleeve and the lower sleeve, and the outer wall of the guide pipe is fixedly connected with the inner wall of the upper sleeve and the inner wall of the lower sleeve respectively;

the driving mechanism comprises a rotating assembly and an extrusion assembly, the rotating assembly coats the top ends of the upper sleeve and the lower sleeve, and the rotating assembly is rotatably connected with the upper sleeve and the lower sleeve;

the extrusion subassembly specifically is two, the extrusion subassembly includes the extruded article, the extruded article slides and sets up the extrusion intracavity, and two the extruded article is followed the pipe symmetry sets up, extruded article one end with the runner assembly transmission is connected, the other end with pipe outer wall butt.

Preferably, the rotating assembly comprises a first bearing, a second bearing and a screwing barrel, the screwing barrel is respectively and rotatably connected with the upper sleeve and the lower sleeve through the first bearing and the second bearing, a first bevel gear is fixedly connected to the circumferential direction of the inner wall of the screwing barrel and located in the extrusion cavity, and the first bevel gear is in transmission connection with the extrusion piece.

Preferably, the extrusion subassembly still includes to rotate through support piece and connects the rotation section of thick bamboo in the extrusion intracavity, it is close to rotate the section of thick bamboo the fixed cover in one end outer lane of twisting a section of thick bamboo has connect second bevel gear, second bevel gear with first bevel gear meshing transmission, it has the thread groove to rotate to have seted up in the section of thick bamboo, the thread groove is kept away from second bevel gear's one end is opened, thread groove female connection has the threaded rod, threaded rod one end is stretched out the thread groove with the extruded piece rigid coupling, the extruded piece with the rigid coupling has the locating part between the support piece.

Preferably, the supporting member includes a third bearing, an inner ring of the third bearing is fixedly sleeved on the outer wall of the rotating cylinder, an outer ring of the third bearing is symmetrically and fixedly connected with one end of a supporting rod, and the other ends of the two supporting rods are respectively and fixedly connected with the bottom surface of the upper sleeve and the top surface of the lower sleeve.

Preferably, the locating part includes two telescopic links, and the stiff end rigid coupling respectively of two telescopic links is two on the bracing piece lateral wall, two the flexible end of telescopic link all with the extruded piece rigid coupling.

Preferably, the extruded article includes the underframe, sliding connection has the stripper plate in the underframe, stripper plate one side with the rigid coupling has a plurality of springs between the bottom surface in the underframe, the stripper plate opposite side stretches out the underframe with pipe outer wall butt, the threaded rod with the flexible end of telescopic link all with the outer bottom surface rigid coupling of underframe.

Preferably, a one-way valve is fixedly mounted on the inner wall of the guide pipe and is positioned at the bottom opening of the lower sleeve.

Preferably, a medical patch is fixedly connected to the bottom opening of the lower sleeve, the medical patch is in contact with the skin of a human body, and the bottom end of the catheter penetrates through the medical patch.

The utility model discloses a following technological effect: the utility model discloses a through wear to establish the pipe in last sleeve and lower sleeve, can fix the top of pipe, be convenient for follow-up infusion medicine in the pipe, and it forms the extrusion chamber to go up to be provided with the clearance between sleeve and the lower sleeve, set up two extrusion subassembly among the actuating mechanism along the pipe symmetry in the extrusion chamber, only need control the runner assembly among the actuating mechanism to carry out the transmission to the extruded article in two extrusion subassemblies, make two extruded articles slide in the extrusion chamber, the continuous pipe to being located in the middle of two extruded articles extrudees, reach the extrusion encapsulated situation to the pipe until two extruded articles, can accomplish the shutoff to the pipe, when needing to relieve the shutoff to the pipe, only need control the runner assembly direction to carry out the transmission to two implanted extrusions, can make the pipe be unblocked state, the utility model discloses the mode that adopts silica gel puncture window to carry out the shutoff to the pipe among the prior art, adopt the mode of extrusion shutoff, easy operation is swift, and then realized carrying out the condition that the piece doping can not appear when carrying out the treatment to the patient of inplanting medicine in the pipe, has kept the medicine and has got into hepatic artery, has improved the security of patient in the process of carrying out the subcutaneous implantation hepatic artery infusion treatment, and then the good subcutaneous, and then the subcutaneous liver cancer of the chemotherapy, and improved the required chemotherapy treatment effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the structure of a subcutaneous implantation device for liver cancer chemotherapy of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a top view of the driving mechanism of the present invention;

FIG. 4 is a schematic structural view of an extrusion of the present invention;

wherein, 1, an upper sleeve; 2. a lower sleeve; 3. an extrusion chamber; 4. a conduit; 5. a first bearing; 6. a second bearing; 7. screwing the cylinder; 8. a first bevel gear; 9. a rotating drum; 10. a second bevel gear; 11. a threaded rod; 12. a third bearing; 13. a support bar; 14. a telescopic rod; 15. a bottom frame; 16. a pressing plate; 17. a spring; 18. a one-way valve; 19. medical sticking cloth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.

In a first embodiment, referring to fig. 1-4, the present invention provides a subcutaneous implantation device for liver cancer chemotherapy, comprising:

the main body mechanism comprises an upper sleeve 1 and a lower sleeve 2, the upper sleeve 1 and the lower sleeve 2 are coaxially arranged, a gap is formed between the upper sleeve 1 and the lower sleeve 2 to form an extrusion cavity 3, a guide pipe 4 penetrates through the upper sleeve 1 and the lower sleeve 2, and the outer wall of the guide pipe 4 is fixedly connected with the inner wall of the upper sleeve 1 and the inner wall of the lower sleeve 2 respectively;

the driving mechanism comprises a rotating assembly and an extrusion assembly, the rotating assembly coats the top ends of the upper sleeve 1 and the lower sleeve 2, and the rotating assembly is rotatably connected with the upper sleeve 1 and the lower sleeve 2;

the extrusion subassembly specifically is two, and the extrusion subassembly includes the extruded article, and the extruded article slides and sets up in extrusion chamber 3, and two extruded articles set up along 4 symmetries of pipe, and extruded article one end is connected with the runner assembly transmission, the other end and 4 outer wall butts of pipe.

In order to improve the safety of a patient in the process of subcutaneous implantation hepatic artery perfusion treatment and improve the effect of subcutaneous implantation hepatic artery perfusion treatment, the guide pipe 4 is arranged in the upper sleeve 1 and the lower sleeve 2 in a penetrating manner, the top end of the guide pipe 4 can be fixed, so that medicines can be conveniently and subsequently input into the guide pipe 4, a gap is arranged between the upper sleeve 1 and the lower sleeve 2 to form the extrusion cavity 3, two extrusion components in the driving mechanism are symmetrically arranged in the extrusion cavity 3 along the guide pipe 4, only the rotating component in the driving mechanism is required to be controlled to transmit the extrusion components in the two extrusion components, the two extrusion components slide in the extrusion cavity 3, the guide pipe 4 positioned between the two extrusion components is continuously extruded until the two extrusion components reach the extrusion sealing state to the guide pipe 4, the plugging of the guide pipe 4 can be finished, when the plugging of the guide pipe 4 needs to be relieved, the guide pipe 4 can be in a smooth state only by controlling the rotating component to transmit the two extrusion components, the occurrence of the situation of doped debris in the hepatic artery perfusion when the medicines are avoided, and the safety of the subcutaneous implantation hepatic artery perfusion mode in the process of hepatic artery chemotherapy is further improved.

Further optimize the scheme, the rotating assembly includes first bearing 5 and second bearing 6 and twists a section of thick bamboo 7, twists a section of thick bamboo 7 and rotate with upper sleeve 1 and lower sleeve 2 respectively through first bearing 5 and second bearing 6 and be connected, twists and move a section of thick bamboo 7 inner wall circumference rigid coupling and have first bevel gear 8, first bevel gear 8 is located extrusion chamber 3, first bevel gear 8 is connected with the extrusion piece transmission. When needs carry out the shutoff to pipe 4, only need rotate and twist a section of thick bamboo 7, by twisting the rotation that moves a section of thick bamboo 7 and drive the rotation of first bevel gear 8, and then realize transmission drive to the extruded article, make two extruded article relative sliding, extrude the shutoff to pipe 4.

Furthermore, the inner ring of the first bearing 5 is fixedly sleeved on the outer wall of the upper sleeve 1, the inner ring of the second bearing 6 is fixedly sleeved on the outer wall of the top end of the lower sleeve 2, the twisting cylinder 7 coats the first bearing 5 and the second bearing 6, and the outer rings of the first bearing 5 and the second bearing 6 are fixedly connected with the inner wall of the twisting cylinder 7.

Further, first bearing 5 is the same with second bearing 6 size, goes up

sleeve

1 and 5 size looks adaptations of first bearing, and lower sleeve 2 makes things convenient for medical personnel to hold fixedly for the position of installation second bearing 6.

Further optimization scheme, the extrusion subassembly still includes rotates the rotation section of thick bamboo 9 of connection in extrusion chamber 3 through support piece, it has second bevel gear 10 to rotate the fixed cover in the one end outer lane that a section of thick bamboo 9 is close to twist a section of thick bamboo 7, second bevel gear 10 and the transmission of first bevel gear 8 meshing, the thread groove has been seted up in the rotation section of thick bamboo 9, the one end that second bevel gear 10 was kept away from to the thread groove is opened, thread groove female connection has threaded rod 11, threaded rod 11 one end is stretched out the thread groove and is extrudeed extruded article rigid coupling, the rigid coupling has the locating part between extruded article and the support piece. Through the rotation of first bevel gear 8, drive two second bevel gears 10 and produce the rotation, and then make and rotate a 9 rotation, at the in-process that rotates a 9 rotation, threaded rod 11 and thread groove produce screw drive's effect, and then make threaded rod 11 realize stretching out or retracting, and then make two extrusions realize relative slip, realize extrusion sealing to pipe 4.

In a further optimized scheme, the supporting piece comprises a third bearing 12, an inner ring of the third bearing 12 is fixedly sleeved on the outer wall of the rotating cylinder 9, an outer ring of the third bearing 12 is symmetrically and fixedly connected with one end of a supporting rod 13, and the other ends of the two supporting rods 13 are fixedly connected with the bottom surface of the upper sleeve 1 and the top surface of the lower sleeve 2 respectively. The position of the rotary drum 9 can be fixed by the two support rods 13 and the third bearing 12, and the rotary drum 9 can rotate with the rotation of the second bevel gear 10.

Further optimization scheme, locating part includes two telescopic links 14, and the stiff end of two telescopic links 14 is the rigid coupling respectively on two bracing pieces 13 lateral walls, and the flexible end of two telescopic links 14 all with extrusion spare rigid coupling.

Through 14 rigid couplings of two telescopic links between bracing piece 13 and extruded piece, can carry on spacingly to the extruded piece, and then carry on spacingly to threaded rod 11, avoid producing the rotation at threaded rod 11, and then realize the screw thread transmission effect of thread groove and threaded rod 11, and through the flexible of telescopic link 14, can realize that the extruded piece is spacing state all the time at the removal in-process, the telescopic link 14 is preferred fishing rod structure, purchase article for common market, no longer give unnecessary details here.

Further optimize the scheme, the extruded piece includes underframe 15, and sliding connection has stripper plate 16 in underframe 15, and the rigid coupling has a plurality of springs 17 between 16 one sides of stripper plate and underframe 15 inner bottom surface, and 16 opposite sides of stripper plate stretch out underframe 15 and pipe 4 outer wall butt, the flexible end of threaded rod 11 and telescopic link 14 all with underframe 15 outer bottom surface rigid coupling. When the two extrusions extrude and seal the guide pipe 4, the bottom frame 15 in the extrusions is used as the bottom end position, the extrusion plate 16 is in contact with the guide pipe 4, and through the arrangement of the spring 17, the spring 17 generates elastic force when the extrusion plate 16 extrudes the guide pipe 4, the extrusion sealing effect of the two extrusion plates 16 on the guide pipe 4 is improved, the length of the extrusion plate 16 is preferably larger than the diameter of the guide pipe 4, and the guide pipe 4 is conveniently and completely covered when the guide pipe 4 is extruded to deform.

In a further optimized scheme, a one-way valve 18 is fixedly arranged on the inner wall of the conduit 4, and the one-way valve 18 is positioned at the bottom opening of the lower sleeve 2. Drug reflux is avoided by the provision of a one-way valve 18.

In a further optimized scheme, a bottom opening of the lower sleeve 2 is fixedly connected with a medical patch 19, the medical patch 19 is contacted with the skin of a human body, and the bottom end of the catheter 4 penetrates through the medical patch 19. The medical patch 19 is arranged to facilitate the fixation of the device on the skin of a human body.

The using method comprises the following steps: firstly, a conduit 4 is connected with a hepatic artery through a puncture cannula, then a medical patch 19 is pasted on the skin of a human body, the device is fixed, an upper sleeve 1 and a lower sleeve 2 are positioned on the surface of the skin, when medicine needs to be filled into the hepatic artery, the top end of the conduit 4 is connected with an external injection device, the medicine can be filled into the hepatic artery through the conduit 4, after the filling is finished, the conduit 4 is disconnected from the external injection device, then the bottom of the lower sleeve 2 is pinched by fingers, and then a twisting cylinder 7 is rotated clockwise, so that a first bevel gear 8 drives two second bevel gears 10 to rotate, a threaded rod 11 drives two squeezing plates 16 to move, the conduit 4 is squeezed by the continuous relative movement of the two squeezing plates 16 until the condition that the conduit 4 is sealed is achieved, the sealing of the conduit 4 can be completed, and when the medicine needs to be filled again, the twisting cylinder 7 is rotated reversely to enable the two squeezing plates 16 to move backwards, so that the conduit 4 can be unblocked.

It should be noted that the utility model discloses a threaded rod 11 and the screw thread effect of thread groove can realize not intervene when the manpower rotates, and the position of stripper plate 16 is injectd behind the pipe 4 encapsulated situation.

The second embodiment is different from the first embodiment in that the extrusion part is composed of a bottom plate and magnetic blocks, the magnetic blocks on the two bottom plates are arranged oppositely, the two magnetic blocks are respectively an anode and a cathode, and when the guide tube 4 is extruded and sealed, the two magnetic blocks are close to and attracted, so that the sealing effect is further improved (not shown in the figure).

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only described in the preferred embodiments of the present invention, but not limited to the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

Claims

1. A subcutaneous implantation device for liver cancer chemotherapy, comprising:

the main body mechanism comprises an upper sleeve (1) and a lower sleeve (2), the upper sleeve (1) and the lower sleeve (2) are coaxially arranged, a gap is formed between the upper sleeve (1) and the lower sleeve (2) to form an extrusion cavity (3), a guide pipe (4) penetrates through the upper sleeve (1) and the lower sleeve (2), and the outer wall of the guide pipe (4) is fixedly connected with the inner wall of the upper sleeve (1) and the inner wall of the lower sleeve (2) respectively;

the driving mechanism comprises a rotating assembly and an extrusion assembly, the rotating assembly coats the top ends of the upper sleeve (1) and the lower sleeve (2), and the rotating assembly is rotatably connected with the upper sleeve (1) and the lower sleeve (2);

the extrusion subassembly specifically is two, the extrusion subassembly includes the extruded article, the extruded article slides and sets up in extrusion chamber (3), and two the extruded article is followed pipe (4) symmetry sets up, extruded article one end with the rotating assembly transmission is connected, the other end with pipe (4) outer wall butt.

2. The subcutaneous implant device for liver cancer chemotherapy as claimed in claim 1, wherein: the rotating assembly comprises a first bearing (5), a second bearing (6) and a screwing barrel (7), the screwing barrel (7) is connected with the upper sleeve (1) and the lower sleeve (2) in a rotating mode, the first bearing (5) and the second bearing (6) are respectively connected with the upper sleeve (1) in a rotating mode, a first bevel gear (8) is fixedly connected to the circumferential direction of the inner wall of the screwing barrel (7), the first bevel gear (8) is located in the extrusion cavity (3), and the first bevel gear (8) is in transmission connection with the extrusion piece.

3. The subcutaneous implant device for liver cancer chemotherapy as claimed in claim 2, wherein: the extrusion subassembly still includes to rotate to be connected through support piece a rotation section of thick bamboo (9) in extrusion chamber (3), it is close to rotate a section of thick bamboo (9) the fixed cover in one end outer lane of twisting a section of thick bamboo (7) has second bevel gear (10), second bevel gear (10) with first bevel gear (8) meshing transmission, the thread groove has been seted up in rotation section of thick bamboo (9), the thread groove is kept away from the one end of second bevel gear (10) is opened, thread groove female connection has threaded rod (11), threaded rod (11) one end is stretched out the thread groove with the extruded piece rigid coupling, the extruded piece with the rigid coupling has the locating part between the support piece.

4. The device of claim 3, wherein the device comprises: the support piece comprises a third bearing (12), the inner ring of the third bearing (12) is fixedly sleeved on the outer wall of the rotating cylinder (9), the outer ring of the third bearing (12) is symmetrically and fixedly connected with one end of a support rod (13), and the other end of the support rod (13) is fixedly connected with the bottom surface of the upper sleeve (1) and the top surface of the lower sleeve (2) respectively.

5. The device of claim 4, wherein the device comprises: the locating part includes two telescopic links (14), and the stiff end of two telescopic links (14) is respectively the rigid coupling two on bracing piece (13) lateral wall, two the flexible end of telescopic link (14) all with the extruded piece rigid coupling.

6. The device of claim 5, wherein the device comprises: the extruded article includes underframe (15), there are stripper plate (16) in underframe (15), stripper plate (16) one side with the rigid coupling has a plurality of springs (17) between underframe (15) interior bottom surface, stripper plate (16) opposite side stretches out underframe (15) with pipe (4) outer wall butt, threaded rod (11) with the flexible end of telescopic link (14) all with underframe (15) outer bottom surface rigid coupling.

7. The subcutaneous implant device for liver cancer chemotherapy as claimed in claim 1, wherein: the inner wall of the conduit (4) is fixedly provided with a one-way valve (18), and the one-way valve (18) is positioned at the bottom opening of the lower sleeve (2).

8. The subcutaneous implant device for liver cancer chemotherapy as claimed in claim 1, wherein: the bottom opening of the lower sleeve (2) is fixedly connected with a medical patch (19), the medical patch (19) is in contact with the skin of a human body, and the bottom end of the catheter (4) penetrates through the medical patch (19).