CN218247332U

CN218247332U - Skin expander

Info

Publication number: CN218247332U
Application number: CN202221256900.9U
Authority: CN
Inventors: 陈彩玲; 王玉红; 徐静; 郝喜艳; 朱湘安; 祁丽慧; 吉金峰; 孙盼; 陈欣欣; 张颖
Original assignee: 7th Medical Center of PLA General Hospital
Current assignee: 7th Medical Center of PLA General Hospital
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2023-01-10
Anticipated expiration: 2032-05-24

Abstract

The utility model discloses a expand skin ware, include: the outer cylinder is arranged in the inner cylinder of the outer cylinder and is connected with the inner cylinder through an annular plate; a cutter guide groove extending to the lower port of the outer barrel is formed in the side wall of the outer barrel, a cutter is arranged in the cutter guide groove, and the upper end of the cutter is detachably connected with a driving plate arranged between the outer barrel and the inner barrel; the driving plate can move up and down between the outer cylinder and the inner cylinder; a plurality of first elastic pieces are arranged between the driving plate and the annular plate; an adjusting groove is formed in the outer cylinder above the cutter guide groove, a driving block is arranged in the adjusting groove, and one end of the driving block is connected with the driving plate; the driving block can move up and down in the adjusting groove; the adjusting groove is provided with a detachable gear clamping block fixed on the outer barrel and used for limiting the position of the driving block. The skin expander is simple in structure and convenient to operate, an operator can quickly and accurately determine the point position of skin expansion, and the depth and the direction of skin expansion are controlled according to needs.

Description

Skin expander

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a expand skin ware.

Background

The improved technology of the Sedgree under the guidance of the ultrasonic wave is a method that after the puncture is successful under the guidance of the B ultrasonic wave, a tube placing sheath with a tearable dilator is firstly sent by a guide wire and then a catheter is placed. After the guide wire is fed, in order to facilitate the insertion of the tube placing sheath into the puncture hole, the puncture hole generally needs to be subjected to skin expansion treatment, so that the puncture hole is enlarged, and the subsequent tube placing sheath installation is facilitated.

The existing skin expander generally adopts a blade structure to perform manual skin expansion treatment, but blood overflows from a puncture hole during puncture, the puncture hole is soaked by the blood, the sight of an operator is directly influenced, the operator cannot smoothly find a skin expansion point between a guide wire and the puncture point, and the skin expansion point position cannot be quickly and accurately determined.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to the not enough of above-mentioned prior art, provide one kind can confirm the position between puncture point and the seal wire fast, the skin ware that expands of the degree of depth and the direction of control expanding the skin.

(II) technical scheme

In order to solve the above problem, the utility model provides an expand skin ware, include: the outer cylinder is arranged in the inner cylinder and is connected with the inner cylinder through an annular plate; a cutter guide groove extending to the lower port of the outer barrel is formed in the side wall of the outer barrel, a cutter is arranged in the cutter guide groove, and the upper end of the cutter is detachably connected with a drive plate arranged between the outer barrel and the inner barrel; the driving plate can move up and down between the outer cylinder and the inner cylinder; a plurality of first elastic pieces are arranged between the driving plate and the annular plate; an adjusting groove is formed in the outer cylinder above the cutter guide groove, a driving block is arranged in the adjusting groove, and one end of the driving block is connected with the driving plate; the driving block can move up and down in the adjusting groove; the adjusting groove is provided with a gear clamping block detachably fixed on the outer barrel and used for limiting the position of the driving block.

Optionally, the gear fixture block is provided with a positioning column, positioning holes are formed in the outer wall of the outer barrel, which is located on two sides of the adjusting groove, and the gear fixture block is detachably fixed to the outer wall of the outer barrel through the matching of the positioning column and the positioning holes.

Optionally, a locking assembly is arranged on an outer wall of the outer cylinder on one side of the driving block, and is used for fixing and limiting the position of the driving block.

Optionally, the locking assembly comprises: the locking cylinder is provided with an open end, the open end of the locking cylinder is opposite to one side face of the driving block, and the side wall of the locking cylinder is provided with opposite unlocking grooves; a movable pin is arranged in the locking cylinder, and a pin rod driving plate extending out of the unlocking groove is arranged on the movable pin; a second elastic piece is arranged in the locking cylinder and between the pin rod driving plate and the closed end of the locking cylinder; and a pin rod is arranged on one side of the pin rod driving plate, which is opposite to the open end of the locking cylinder, and a pin rod accommodating groove is formed in the side surface of the driving block, which is opposite to the open end of the locking cylinder, and is used for accommodating the pin rod.

Optionally, an operating panel is arranged on an outer wall of the upper port of the outer cylinder and used for assisting in controlling the cutter.

Optionally, a reinforcing plate is arranged between the outer cylinder and the inner cylinder.

(III) advantageous effects

The utility model provides an expand skin ware drives drive plate and cutter through the drive block and removes in the adjustment tank, adjusts the degree of depth that the cutter expanded the skin through the gear fixture block, can be with drive block, drive plate and cutter locking in fixed position through the locking subassembly. The structure of arranging the inner cylinder in the outer cylinder provides installation space for arranging the driving plate, the cutter and the first elastic piece. The skin expander is simple in structure and convenient to operate, an operator can quickly and accurately determine the point position of skin expansion, and the depth and the direction of skin expansion are controlled according to needs.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic structural view of a skin expander in an embodiment of the present invention;

FIG. 2 is a schematic structural view of an outer cylinder of the skin expander in an embodiment of the present invention;

FIG. 3 is an enlarged view of FIG. 1 at A;

FIG. 4 is a sectional view of the skin expander in the embodiment of the present invention;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is a schematic structural view of a locking assembly of the skin expander in an embodiment of the present invention;

FIG. 7 is an assembly view of the locking assembly and the driving block of the skin expander in the embodiment of the present invention;

fig. 8 is a schematic structural view of the gear clamping block of the skin expanding device in the embodiment of the present invention.

The reference numbers in the drawings are, in order:

1. outer cylinder, 11, lower port, 12, cutter guide way, 13, adjustment tank, 14, upper port, 15, locating hole, 16, operation panel, 2, inner tube, 3, annular plate, 4, cutter, 5, drive plate, 6, first elastic component, 7, drive block, 71, pin rod holding tank, 8, gear fixture block, 81, reference column, 9, locking subassembly, 91, locking cylinder, 92, unlocking groove, 93, activity pin, 94, pin rod drive plate, 95, second elastic component, 96, pin rod, 10, reinforcing plate.

Detailed Description

The following describes the present invention in further detail with reference to the following embodiments and the accompanying drawings. The following examples of the present invention are provided to illustrate the present invention, but are not intended to limit the scope of the present invention.

As shown in fig. 1 to 5, an embodiment of the present invention provides a skin expander, including: an outer cylinder 1, an inner cylinder 2 disposed in the outer cylinder. The outer cylinder 1 and the inner cylinder 2 are both hollow cylindrical structures with two open ends, the outer cylinder 1 is sleeved outside the inner cylinder 2, and a cylindrical space is formed between the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2. The outer cylinder 1 and the inner cylinder 2 are connected by an annular plate 3, and the annular plate 3 is disposed in the cylindrical space between the outer cylinder 1 and the inner cylinder 2, near the upper end opening 14 of the outer cylinder 1.

As shown in fig. 2, a cutter guide groove 12 extending to a lower port 11 of the outer cylinder 1 is formed on the side wall of the outer cylinder 1, a cutter 4 for skin expansion is arranged in the cutter guide groove 12, and the upper end of the cutter 4 is detachably connected with a drive plate 5 arranged between the outer cylinder 1 and the inner cylinder 2; the drive plate 5 can move up and down between the outer cylinder 1 and the inner cylinder 2. The driving plate 5 may be a circular arc plate structure, and is disposed in a cylindrical space surrounded by the outer cylinder 1 and the inner cylinder 2 above the tool guide groove 12, and below the annular plate 3. The driving plate 5 is shaped and sized so that the driving plate 5 can move up and down freely in the cylindrical space enclosed by the outer cylinder 1 and the inner cylinder 2, thereby moving the cutter 4 connected thereto up and down along the cutter guide groove 12. The upper end of cutter 4 is connected with drive plate 5 with detachable mode, for example, sets up the joint groove that can fix cutter 4 at the lower extreme of drive plate 5, is convenient for change cutter 4 (different grade type or not unidimensional) as required, or realizes cutter 4's disposable.

As shown in fig. 3 and 4, a plurality of first elastic members 6 are disposed between the driving plate 5 and the annular plate 4, and the first elastic members 6 may be springs. The driving plate 5 is pushed to move downward by the first elastic member 6 or the driving plate 5 is pulled back upward.

As shown in fig. 1 to 3, an adjusting groove 13 is formed in the outer cylinder 1 above the cutter guide groove 11, a driving block 7 is arranged in the adjusting groove 13, and one end of the driving block 7 is connected with the driving plate 5; the drive block 7 is able to move up and down in the adjustment slot 13 and thereby move up and down with the drive plate 5 attached thereto. The drive block 7 may be detachably connected to the drive plate 7.

As shown in fig. 1 and 3, a gear position latch 8 detachably fixed on the outer cylinder 1 is arranged at the adjusting groove 13 for limiting the position of the driving block 7. As shown in fig. 8, the gear position fixture block 8 is provided with a positioning column 81, positioning holes 15 are formed in the outer wall of the outer barrel 1 at two sides of the adjusting groove 13, and the gear position fixture block 8 is detachably fixed on the outer wall of the outer barrel 1 through the matching of the positioning column 81 and the positioning holes 15. The positioning column 81 is arranged on the surface of the gear clamping block 8 opposite to the outer cylinder 1, and the gear clamping block 8 is fixed at a certain position on the adjusting groove 13 by inserting the positioning column 81 into the positioning hole 15 arranged on the outer wall of the outer cylinder 1. A plurality of rows of positioning holes 15 may be formed on the outer wall of the outer cylinder 1 at both sides of the adjustment groove 13 from top to bottom as required. The height difference between the rows of positioning holes 15 can be set according to the depth of the skin, for example, the height difference between the rows of positioning holes 15 is the same or different. The number and the transverse spacing of each row of positioning holes 15 can also be set as required, for example, 2 or 4 positioning holes are symmetrically arranged on two sides of the adjusting groove 13, and correspondingly, 2 or 4 positioning posts 81 are arranged on the gear fixture block 8.

As shown in fig. 1 and 3, a locking assembly 9 is provided on the outer wall of the outer cylinder 1 on the side of the driving block 7 for fixedly limiting the position of the driving block 7. As shown in fig. 6 and 7, the locking assembly 9 includes: a locking cylinder 91 with one open end, wherein the open end of the locking cylinder 91 is opposite to one side surface of the driving block 7, and the side wall of the locking cylinder 91 is provided with an opposite unlocking groove 92; a movable pin 93 is arranged in the locking cylinder 91, and a pin rod driving plate 94 extending out of the unlocking groove 92 is arranged on the movable pin 93; a second elastic member 95 is provided in the lock cylinder 91 between the pin lever drive plate 94 and the closed end of the lock cylinder 91; a pin lever 96 is provided on the side of the pin lever drive plate 94 opposite to the open end of the lock cylinder 91, and a pin lever receiving groove 71 is provided on the side of the drive block 7 opposite to the open end of the lock cylinder 91 for receiving the pin lever 96.

The movable pin 93 inserts the pin lever 96 into the pin lever receiving groove 71 in the driving block 7 by the urging force of the second elastic member 95 without interference of an external force, thereby locking the driving block 7. When the driving block 7 is in the locked state, the driving plate 5 connected to the driving block 7 and the cutter 4 connected to the driving plate 5 are in the locked state. When a force is applied to the pin drive plate 94 to compress the second resilient member 95 (which may be a spring) to withdraw the pin 96 from the pin receiving slot 71, the drive block 7 is unlocked and the drive plate 5 and the cutter 4 are also unlocked. Then, the driving plate 5 is pushed downwards by the first elastic member 6 to drive the cutter 4 to move downwards, so that the skin expanding operation can be performed on the puncture hole.

As shown in fig. 1, for the convenience of operation, an operation plate 16 is provided on the outer wall of the outer cylinder 1 at the port 14 for assisting the control of the cutter 4. For example, when the skin expanding operation is performed, the skin expander is integrally controlled by the operation plate 16, and then the driving block 7 is operated by fingers.

As shown in fig. 1, a reinforcing plate 10 is provided between the outer tube 1 and the inner tube 2. The reinforcing plate 10 may be semi-annular, and is disposed in a vacant region in the cylindrical space between the outer cylinder 1 and the inner cylinder 2, for example, in a vacant region outside the space where the cutter 4, the driving plate 5 and the first elastic member 6 are disposed.

When the skin expander of the novel embodiment is used, the driving block 7 is adjusted to a position adjacent to the locking assembly 9 in the initial state, and the pin rod driving plate 94 pushes the pin rod 96 into the pin rod accommodating groove 71 under the action of the second elastic piece 95, so that the driving block 7, the driving plate 5 and the cutter 4 are locked at the current positions. At this time, the cutter 4 is entirely located in the cutter guide groove 12, and the first elastic member 6 is in a compressed state. According to the depth of expanding the skin of the puncture hole, the gear clamping block 8 is arranged at the corresponding height position on the adjusting groove 13. The vein of the patient is punctured, then the guide wire is fed, the punctured guide wire penetrates through the inner cylinder 2 from the lower end of the inner cylinder 2, and the tail end of the cutter guide groove 12 is placed at the puncture point by the whole skin expander under the guidance of the guide wire. Then, the pin 96 is pulled out of the pin receiving groove 71, the driving block 7 and the driving plate 5 are unlocked, and the driving block 7 drives the cutter 4 to move downward by the gravity and the restoring force of the first elastic member 6. The driving block 7 is stopped when moving to the gear clamping block 8; the cutter 4 correspondingly extends out of the bottom end of the inner barrel 2 by a set length, and skin expansion is carried out on the puncture hole by a set depth. After the skin expanding operation is completed, the driving plate 5 and the cutter 4 are moved upwards through the driving block 7, so that the driving block 7 is moved to a position adjacent to the locking assembly 9 again, and the driving block 7 is locked to prepare for the next skin expanding operation.

The utility model provides an expand skin ware drives drive plate and cutter through the drive block and removes in the adjustment tank, adjusts the degree of depth that the cutter expanded the skin through the gear fixture block, can be with drive block, drive plate and cutter locking in fixed position through the locking subassembly. The structure of setting up the inner tube in the urceolus provides installation space for arranging drive plate, cutter and first elastic component. The skin expander is simple in structure and convenient to operate, and the skin expanding depth can be preset according to needs.

In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific cases, and should not be construed as limiting the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.

Claims

1. A skin expander, comprising:

the outer barrel (1) is an inner barrel (2) arranged in the outer barrel (1), and the outer barrel (1) is connected with the inner barrel (2) through an annular plate (3);

a cutter guide groove (12) extending to a lower port (11) of the outer barrel (1) is formed in the side wall of the outer barrel (1), a cutter (4) is arranged in the cutter guide groove (12), and the upper end of the cutter (4) is detachably connected with a driving plate (5) arranged between the outer barrel (1) and the inner barrel (2); the driving plate (5) can move up and down between the outer cylinder (1) and the inner cylinder (2);

a plurality of first elastic pieces (6) are arranged between the driving plate (5) and the annular plate (3);

an adjusting groove (13) is formed in the outer cylinder (1) above the cutter guide groove (12), a driving block (7) is arranged in the adjusting groove (13), and one end of the driving block (7) is connected with the driving plate (5); the driving block (7) can move up and down in the adjusting groove (13);

the adjusting groove (13) is provided with a gear clamping block (8) which is detachably fixed on the outer barrel (1) and used for limiting the position of the driving block (7).

2. The skin expander according to claim 1, wherein the gear position clamping block (8) is provided with a positioning column (81), positioning holes (15) are formed in the outer wall of the outer cylinder (1) at two sides of the adjusting groove (13), and the gear position clamping block (8) is detachably fixed on the outer wall of the outer cylinder (1) through the matching of the positioning column (81) and the positioning holes (15).

3. The skin expander according to claim 1, characterized in that a locking assembly (9) is arranged on the outer wall of the outer cylinder (1) on the side of the driving block (7) for fixedly limiting the position of the driving block (7).

4. The skin expander according to claim 3, characterized in that said locking assembly (9) comprises: the locking device comprises a locking cylinder (91) with one open end, wherein the open end of the locking cylinder (91) is opposite to one side surface of the driving block (7), and the side wall of the locking cylinder (91) is provided with opposite unlocking grooves (92);

a movable pin (93) is arranged in the locking cylinder (91), and a pin rod driving plate (94) extending out of the unlocking groove (92) is arranged on the movable pin (93);

a second elastic member (95) is arranged in the locking cylinder (91) between the pin rod driving plate (94) and the closed end of the locking cylinder (91);

a pin rod (96) is arranged on one side, opposite to the open end of the locking cylinder (91), of the pin rod driving plate (94), and a pin rod accommodating groove (71) is formed in the side face, opposite to the open end of the locking cylinder (91), of the driving block (7) and used for accommodating the pin rod (96).

5. The skin expander according to claim 1, characterized in that an operating plate (16) is arranged on the outer wall of the outer cylinder (1) at the upper port (14) for assisting in controlling the cutter (4).

6. The skin expander according to claim 1, characterized in that a reinforcement plate (10) is arranged between the outer cylinder (1) and the inner cylinder (2).