CN116020039A

CN116020039A - Preassembled catheter sheath group

Info

Publication number: CN116020039A
Application number: CN202310174559.5A
Authority: CN
Inventors: 刘津莹; 宋福生; 张艳琴; 董建龙; 谢宝川; 乔卞卞
Original assignee: Hebei Kangyu Medical Instrument Co ltd
Current assignee: Hebei Kangyu Medical Instrument Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-04-28
Anticipated expiration: 2043-02-28
Also published as: CN116020039B

Abstract

The invention discloses a preassembled catheter sheath group, which comprises a sheath tube body and a detachable retention assembly, wherein the detachable retention assembly comprises a fixing seat and a connecting assembly, the fixing seat is used for being fixed on the skin of a patient, and the connecting assembly is used for supporting and limiting the sheath tube body. According to the preassembled catheter sheath group, when the sheath body needs to be fixed in the operation process, the connecting component on the detachable retention component can be connected to the sheath body, the fixing component is fixed to the skin at the moment, the fixation of the sheath body is completed, and after the fixation of the sheath body is completed, the detachable retention component can be detached and recycled after the operation is finished.

Description

Preassembled catheter sheath group

Technical Field

The invention relates to the field of medical equipment, in particular to a preassembled catheter sheath group.

Background

The guiding catheter device is suitable for devices for establishing channels, conveying or recovering devices, inputting medicines or leading out body fluids and the like in vascular or interventional diagnosis and treatment operations, and comprises a sheath tube, a suture buckle, a guide wire, a catheter, a puncture needle and the like.

The invention relates to the technical field of introducer sheath, and provides an introducer sheath, which at least comprises: the sheath body is of a tubular structure with a hollow inside and comprises a support section and a flexible section which are connected, wherein the rigidity of the support section is larger than that of the flexible section, the flexible section is suitable for being inserted into a cavity of a patient, and the support section is suitable for being connected with an external operating mechanism. The guiding sheath tube provided by the invention has the advantages that the sheath tube body comprises the supporting section and the flexible section, and when the guiding sheath tube is used, the flexible section with larger flexibility is used for being inserted into a cavity of a patient, so that the damage to the mucous membrane or tissues of the cavity of the patient is avoided; the support section with higher rigidity can provide certain support for the sheath body, prevents that the sheath body is too soft and can not timely respond to the action of the external operating mechanism, improves the operability of the sheath body, and is convenient for accurately conveying the sheath body to the target focus.

In the operation process of the prior art, when the catheter enters or withdraws from the sheath, the catheter needs to be rotated and simultaneously fed or withdrawn, in the process, the sheath can shake to cause the movement of other interventional devices, and the solution of shaking in the prior art is to fix the sheath by connecting the suture with the sheath through the suture buckle on the sheath and the operation towel, but the hole on the suture buckle is smaller, and the suture passes through the hole and is too complicated to be sewn on the operation towel.

Disclosure of Invention

The object of the present invention is to provide a pre-assembled catheter sheath set that solves the above-mentioned drawbacks of the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

a preassembled catheter sheath set comprising a sheath body, further comprising a detachable retention assembly comprising a fixing seat for securing to the skin of a patient and a connection assembly for supporting and spacing the sheath body.

In the preassembled catheter sheath set, the connecting component is an adhesive clip, and the adhesive clip is adhered to the fixing seat.

The preassembled catheter sheath group comprises a bending section and an operation section, wherein the bending section is formed by connecting two slightly-bent arc-shaped end parts, the operation section comprises an arc-shaped outer side and an arc-shaped inner side, and the arc-shaped inner side is bent to enable the bending section to be bent.

In the preassembled catheter sheath group, the adhesive surface on the adhesive block and the surface deviating from the adhesive surface are both provided with tearable sheets.

The preassembled catheter sheath group comprises a sleeve joint semi-ring and a wedge block, wherein the sleeve joint semi-ring is connected with the sheath tube body and the wedge block, and a plurality of first clamping parts are arranged on the wedge block in an array mode.

The pre-assembled catheter sheath group comprises a fixed seat and a second clamping part, wherein the first clamping part and the second clamping part are mutually clamped.

The preassembled catheter sheath group is arranged on the clamping strokes of the first clamping part and the second clamping part to adjust the inclination angle of the sheath tube body.

In the preassembled catheter sheath set, the first clamping part can be in a tooth shape or a U shape.

In the preassembled catheter sheath set, the first clamping part is tooth-shaped and elastic.

In the technical scheme, the preassembled catheter sheath group provided by the invention can connect the connecting component on the detachable retention component to the sheath body when the sheath body needs to be fixed in the operation process, and the fixing component is fixed to the skin at the moment so as to fix the catheter body, and the detachable retention component can be detached and recycled after the operation is finished after the fixing of the catheter body is finished.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view of a pre-assembled catheter sheath set according to an embodiment of the present invention;

FIG. 2 is a schematic view of a pre-assembled catheter sheath set according to an embodiment of the present invention;

fig. 3 is a schematic view of a pre-assembled catheter sheath set according to another embodiment of the invention.

FIG. 4 is a cross-sectional view of a connection assembly and block of another embodiment of the invention pre-assembled catheter sheath set;

FIG. 5 is a front view of a transverse rod of another embodiment of the invention pre-assembled catheter sheath set;

FIG. 6 is a top view of a block of another embodiment of the invention pre-assembled catheter sheath set;

FIG. 7 is a cross-sectional view of a block of another embodiment of the invention pre-assembled catheter sheath set;

reference numerals illustrate:

1. a sheath tube body; 2. a connection assembly; 3. a fixing seat; 4. sleeving the half rings; 5. wedge blocks; 6. a block; 7. a first clamping part; 8. a second clamping part; 9. the outer side of the arc; 10. a longitudinal rod; 11. a transverse bar; 12. a through hole; 13. a transverse hole; 14. a push rod; 15. a boss; 16 center slots; 17. a first rod body; 18. a second rod body;

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

In order to more clearly describe the structure of various embodiments of the present invention, the terms "proximal" and "distal" are defined herein as terms commonly used in the interventional medical arts. Specifically, "distal" means an end far from the operator during a surgical operation, "proximal" means an end near the operator during a surgical operation, "axial" means a length direction thereof, and "radial" means a direction perpendicular to the "axial".

Referring to fig. 1-7, an embodiment of the present invention provides a preassembled catheter sheath assembly comprising a sheath body 1, and further comprising a detachable retention assembly comprising a fixing base 3 and a connection assembly 2, the fixing base 3 being for fixing to the skin of a patient, the connection assembly 2 being for supporting and restraining the sheath body 1.

Specifically, as shown in fig. 1, the distal end of the sheath tube body 1 (i.e. the end that enters the human body) is used for being placed into the artery, the proximal end of the sheath tube body 1 (i.e. the end that is far away from the patient) is the doctor operation end, the proximal end is also provided with a detachable retention component, the detachable retention component is capable of being loaded on the sheath tube body 1 and detached from the sheath tube body 1, the detachable retention component comprises a fixing seat 3 and a connecting component 2, the connecting component 2 of the detachable retention component is connected with the sheath tube body 1 and the fixing seat 3, the fixing seat 3 is used for being fixed on the skin of the patient, the connecting component 2 of the detachable retention component can play a role of supporting the limiting sheath tube body 1 for a rod piece or a block piece and the like, the fixing seat 3 of the detachable retention component can be fixed on the base of the skin, the fixing seat 3 is preferably bonded in a manner, the detachable retention component is also capable of being connected on the wrist in a ring-like manner, and the optional manner is also capable of being connected on the collar-like, and the clip-shaped body 6 is provided with a clamping groove for being used for clamping one end of a long rod, for example, before the operation, the medical care sheath tube body 1 is ready to be fixed on the skin, the fixing seat 3 can be inserted into the artery, for example, the fixing seat can be inserted into the artery 1 or the artery when the device is connected with the long-shaped channel or the device (for example, and can be inserted into the artery).

According to the preassembled catheter sheath group provided by the embodiment of the invention, in the operation process, when the sheath body 1 needs to be fixed, the connecting component 2 on the detachable retention component can be connected to the sheath body 1, at the moment, the fixing component is fixed on the skin, so that the fixation of the catheter body is completed, and after the fixation of the catheter body is completed, the detachable retention component can be detached after the operation is finished.

In another embodiment provided by the invention, as shown in fig. 2, the connecting component 2 includes an adhesive clip, the shape of the adhesive clip can be understood as that two slightly curved arc ends are connected with each other, the whole is similar to an X-shape, the upper half part after connection is formed into a semi-ring shape adapting to the radial dimension of the sheath tube body 1, the other section of the adhesive clip is a doctor operation part, which has an arc inner side and an arc outer side 9, a doctor can pinch the arc outer side 9 by two hands to bend the same so as to control the size of the center slot 16 of the adhesive clip, so that the adhesive clip can be loaded on the sheath tube body 1 or unloaded from the sheath tube body 1, the arc inner side of the adhesive clip has viscosity, the doctor operation part of the adhesive clip has an overall arc bending radian of about 150 ° -180 ° when loaded on the sheath tube body 1, so that the adhesive clip has an effect of supporting the sheath tube body 1, the fixing base 3 is an adhesive block, the adhesive block has a surface, the adhesive surface on the doctor is used for adhering on the skin, the adhesive block has viscosity on the arc inner side of the adhesive clip, so that the adhesive clip can be loaded on the adhesive clip, and the adhesive clip can be fixed at the required positions of the tearing component 3 when the adhesive clip is not used, and the tearing component is arranged at the required positions, and can be torn off, and the tearing component is small.

In yet another embodiment of the present invention, as shown in fig. 3, the connection assembly 2 includes a socket half ring 4 and a wedge block 5, where the socket half ring 4 and the wedge block 5 are fixedly connected, that is, the movement of the wedge block 5 drives the socket half ring 4 to move, the socket half ring 4 is shaped as a half ring body and has elasticity, the radial dimension of the socket half ring 4 is set to be elastically sleeved on the sheath tube 1, that is, the radial dimension of the inner wall of the socket half ring 4 is smaller than the radial dimension of the outer wall of the sheath tube 1, the socket half ring 4 can be directly detached after the operation is finished, because the socket half ring 4 has elasticity, when the socket half ring 4 is detached or loaded on the sheath tube 1, only the central groove 16 of the socket half ring 4 needs to be manually broken, the wedge block 5 includes an inclined plane, a vertical plane and a horizontal plane, and a plurality of identical first clamping parts 7 are also provided on the horizontal plane of the wedge block 5, preferably, the first clamping part 7 may be a first triangle tooth, the first triangle teeth have elasticity, the fixing seat 3 is a block 6, the block 6 is arranged on a collar, the collar is used for sleeving on a wrist, the collar is elastic or lockable, such as a hoop, one surface of the collar, which faces away from the viscous surface, is provided with a clamping groove (not shown in the figure), the bottom surface of the clamping groove is provided with a plurality of identical second clamping parts 8 in an array manner, the second clamping parts 8 can also be second triangle teeth, each second triangle tooth has elasticity, each first triangle tooth and each second triangle tooth are mutually clamped to realize the fixation of the fixing seat 3 and the wedge block 5, preferably, the size of the wedge block 5 is smaller than the size of the clamping groove, so that the wedge block 5 can be fixed at different positions in the clamping groove, the manually pushed vertical surface can enable the wedge block 5 to move towards the axial direction along the sheath tube, such as far as possible, so that each first triangular tooth on the wedge-shaped block 5 is driven to move towards the distal end, each first triangular tooth is clamped on each second triangular tooth one by one in the distal movement stroke of the first triangular tooth, and when more first triangular teeth are clamped on each second triangular tooth, the closer the wedge-shaped block 5 is to the wound position of a patient, the inclined surface of the wedge-shaped block 5 enables the inclined angle of the sheath tube body 1 to be increased, and in the same way, the inclined angle of the sheath tube body 1 is enabled to be reduced by manually pulling the wedge-shaped block 5 to move towards the proximal end, the distal end of the sheath tube body 1 is not only provided with a linear tube body, but also provided with a bending type, the bending type sheath tube body 1 can pre-mold the distal end of the sheath tube body 1 into different bending shapes according to different expected uses of the sheath tube, so that the distal end of the sheath tube is matched with the anatomical morphology of a specific lesion part, the distal end of the sheath tube is convenient to be aligned with the lesion part in a human body, however, the curved sheath may be used in a particular application to puncture the vessel wall when the distal end is in a curved state, it is thus necessary to keep the distal end of the sheath body 1 parallel or substantially parallel to the axis of the blood vessel, at which time the physician manually increases the angle of inclination of the sheath body 1 and secures the sheath body 1 by means of a suture using a suture buckle, the second triangular teeth on the first triangular tooth clamping and fixing seat 3 arranged on the wedge-shaped surface have two effects, wherein the first effect is that when each first triangular tooth is clamped with each second triangular tooth, the inclined surface of the wedge-shaped block 5 can support and fix the sheath tube body 1 by one fixing effect, and the second effect is that the wedge-shaped block 5 can be manually pushed to change the clamping quantity of the first triangular teeth on the fixing seat 3 so that the inclined surface of the wedge-shaped block 5 supports the sheath tube body 1 and the inclined angle of the sheath tube body 1 can be changed.

In still another embodiment of the present invention, as shown in fig. 4, the sleeve-joint half ring 4 includes two arc-shaped pieces, the two arc-shaped pieces are rotatably connected to the wedge-shaped piece 5, a cross-shaped transverse hole 13 and a longitudinal hole are disposed on the wedge-shaped piece 5, a longitudinal rod 10 is disposed in the longitudinal hole, a transverse rod 11 is disposed in the transverse hole 13, the length of the transverse rod 11 is the length of the transverse hole 13, a through hole is disposed in the middle of the longitudinal rod 10, the transverse rod passes through the through hole, meanwhile, a wedge-shaped surface is disposed on the transverse rod 11, an inclined surface opposite to the wedge-shaped surface is disposed on the bottom wall of the through hole, the shape of the block 6 is a U-shaped, through holes 12 are disposed on two vertical sections of the U-shaped piece for accommodating the wedge-shaped piece 5, and the through holes 12 on the U-shaped piece 6 and the transverse holes 13 on the wedge-shaped surface are on the same horizontal plane, a pushing rod 14 is disposed in one through hole 12, preferably, and half red and half green on the rod body of the pushing rod 14 are disposed. The structure has three states in the use process: a first state, a second state and a third state, in which in the first state, the transverse rod 11 is located in the transverse hole 13, the push rod 14 is located in the through hole, for example, half of the red part is located in the through hole 12, and the other half of the red part and the green part are wholly outside the through hole 12, that is, the wedge block 5 and the block 6 are not substantially connected, at the moment, the top of the longitudinal rod 10 is extruded between two arc-shaped pieces of the sleeve-joint half ring, and the two arc-shaped pieces are both rotationally connected on the wedge block 5, that is, the top of the longitudinal rod 10 is clamped on the rotational stroke of the two arc-shaped pieces of the sleeve-joint half ring 4, so that the sleeve-joint half ring 4 is in a state of clamping the sheath tube body, and corresponds to the step of fixing the sheath tube on the block 6 after the sheath tube is punctured during operation; in the second state, after the doctor inserts the wedge-shaped block 5 into the block 6, the doctor pushes the push rod to push the push rod to the position that the push rod is partially in the through hole, partially in the transverse hole and partially outside the through hole, such as only the green part outside the through hole, and likewise, a part of the transverse rod 11 is positioned in the other through hole, but most of the transverse rod is positioned in the transverse hole, the connection between the wedge-shaped block 5 and the block 6 is realized by means of the push rod and the transverse rod, and the wedge-shaped surface is attached to the inclined surface of the bottom wall of the through hole. This state is also a normal use state, and the sheath body is fixed. Finally, the third state is entered, the push rod is further pushed towards the direction of the wedge-shaped block 5 on the basis of the second state, all push rods are located in the through holes and the transverse holes, at the moment, correspondingly, when the push rod 14 is pushed after the operation is completed, so that one half of green on the push rod 14 enters the through holes 12, the push rod is in the third state, the wedge-shaped surface on the transverse rod 11 can press the inclined surface of the bottom wall of the through hole on the longitudinal rod 10 to force the longitudinal rod to move downwards, at the moment, the longitudinal rod 10 can move downwards due to the limit of the longitudinal hole, the top ends of the longitudinal rod 10 are separated from the two arc-shaped pieces sleeved with the half rings 4 due to the movement of the longitudinal rod 10, the two arc-shaped pieces lose limit and can rotate outwards to release the locking state, the sheath tube body can be directly pulled out and is not limited any more.

In this embodiment, it should be noted that the cooperation of the transverse hole and the through hole is not compatible with the axial adjustment of the wedge block, that is, only one of them can be selected, and cannot be selected at the same time.

In still another embodiment of the present invention, as shown in fig. 6-7, the bottom surface of the longitudinal rod 10 (i.e. the surface close to the bottom wall of the block) is also a wedge-shaped surface, the longitudinal length of the longitudinal rod 10 is just the length of the longitudinal hole, the middle of the block 6 is provided with a central slot 16, the block 6 includes two connected L-shaped pieces, the two L-shaped pieces are respectively connected to two ends of a bracelet, the two L-shaped pieces are butted with each other in a horizontal section to form the U-shape, a bracelet is integrally formed so as to be conveniently sleeved on the wrist or thigh of the patient, the horizontal section of the L-shaped piece is a plate, a notch is arranged at one side of the horizontal section far away from the vertical section, two sides of the horizontal section are respectively provided with a bulge and a recess, when the two L-shaped pieces are butted with each other, the two notches are butted into the central slot 16, the bulge of one L-shaped piece is inserted into the recess of the other L-shaped piece, a middle slot 16 is integrally formed, the two L-shaped pieces are butted with each other, the bulge is formed into the first rod body 18, the two rod body 18 is butted with the first rod body 18, and the two rod body 18 is pushed into the longitudinal section of the longitudinal section, and the rod body 18 is simultaneously pushed into the longitudinal section, and the longitudinal section is further arranged in the longitudinal section, and the longitudinal section is opposite to the longitudinal section, and the longitudinal section is provided with a second rod body 18, and the second rod body 18 is pushed into the longitudinal section and is positioned in the longitudinal section, and is opposite longitudinal section and is opposite a longitudinal slot 18, at this time, the second rod 18 is pressed by the force to press the first rod 17, so that the first rod 17 is separated from one protruding part and completely enters the first groove of the other protruding part, the second rod 18 also enters one protruding part, and at this time, the two L-shaped parts are separated from each other to realize separation, so that the bracelet or the femoral ring is automatically separated when the operation is finished, and the disassembly is more convenient.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims

1. A preassembled catheter sheath set comprising a sheath body, further comprising:

the detachable retention component comprises a fixed seat and a connecting component which are connected, wherein the fixed seat is used for limiting and supporting the skin of a patient, and the connecting component is used for supporting and limiting the sheath tube body.

2. The preassembled catheter sheath assembly of claim 1 wherein the connection assembly is an adhesive clip that is bonded to the anchor block.

3. The preassembled catheter sheath assembly of claim 2 wherein the adhesive clip includes a curved segment and an operative segment, the curved segment interconnecting two slightly curved arcuate ends, the operative segment including an arcuate outer side and an arcuate inner side, the arcuate inner side being curved such that the curved segment is curved.

4. The preassembled catheter sheath assembly of claim 2 wherein the mounting block is an adhesive block having an adhesive surface for adhering to the skin, a surface of the adhesive block facing away from the adhesive surface being adhered to the adhesive clip.

5. The preassembled catheter sheath assembly of claim 4 wherein the adhesive face on the adhesive block and the face facing away from the adhesive face are each provided with a tearable tab.

6. The preassembled catheter sheath assembly of claim 1 wherein the connection assembly includes a socket half ring and a wedge block, the socket half ring and the wedge block being fixedly connected, the wedge block having a plurality of first gripping portions disposed thereon in an array.

7. The preassembled catheter sheath assembly of claim 6 wherein the mount includes a block and a second clamp portion, the first clamp portion and the second clamp portion being clamped to one another.

8. The preassembled catheter sheath assembly of claim 7 wherein the angle of inclination of the sheath body is adjusted over a clamping stroke of the first clamping portion and the second clamping portion.

9. The preassembled catheter sheath assembly of claim 8 wherein the first clamping portion can be tooth-shaped or U-shaped.

10. The preassembled catheter sheath assembly of claim 9 wherein the first clamping portion is toothed and resilient.