CN213220373U - Cutting knife assembly and urinary catheter fixing device using same - Google Patents
Cutting knife assembly and urinary catheter fixing device using same Download PDFInfo
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- CN213220373U CN213220373U CN202021081292.3U CN202021081292U CN213220373U CN 213220373 U CN213220373 U CN 213220373U CN 202021081292 U CN202021081292 U CN 202021081292U CN 213220373 U CN213220373 U CN 213220373U
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Abstract
The utility model discloses a cutting knife subassembly and use ureter fixing device of this cutting knife subassembly, include: the cutter comprises a blade fixing seat and an arc-shaped cutting knife matched and connected with the blade fixing seat; the blade fixing seat comprises a cylindrical base body with a hollow structure in the axial direction and a pair of annular wings which are respectively connected with two ends of the base body in the axial direction; the annular wing is vertically connected with the base body; and the edges of the pair of annular wings are respectively provided with an arc-shaped extension part, namely a pair of arc-shaped extension parts are formed; the pair of arc-shaped extending parts are symmetrically distributed; the arc cutting knife is distributed along the circumferential direction of the base body, and the two axial ends of the arc cutting knife are respectively connected with the pair of arc extending parts in an inserting mode.
Description
Technical Field
The utility model relates to a clinical medical equipment field especially relates to a cutting knife subassembly and use ureter fixing device of this cutting knife subassembly.
Background
In clinical medicine, a urinary catheter is often used, which is inserted into the bladder from the urethra to drain urine. Catheterization is divided into catheter indwelling catheterization and interstitial catheterization. The catheter indwelling type urinary catheter is always indwelling in a patient body, and can be pulled out or replaced with a new urinary catheter periodically when the condition of the patient is approved. Clinically, the most courage is the indwelling urinary catheter. The indwelling urethral catheterization mainly adopts an air bag urethral catheter, 7-15 ml of distilled water or air is injected into a conical connector of the air bag urethral catheter at present, an air bag is expanded, the urethral catheter is fixed in a bladder, the appearance of the urethral catheter is connected with a drainage tube, and the end of the drainage tube is connected with a drainage bag. Patent publication No. CN108042898A discloses a device for fixing a traction-proof urinary catheter, which can play a role of traction prevention, but the cutting knife of the device has low cutting efficiency for the urinary catheter, and the cutting efficiency directly affects the whole traction-proof effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a first purpose provides a cutting knife subassembly to the solution improves the cutting efficiency technical problem to the catheter.
A second object of the utility model is to provide a catheter fixing device to the solution improves the cutting efficiency technical problem to the catheter.
The utility model discloses a cutting knife subassembly realizes like this:
a cutting knife assembly adapted for use with a urinary catheter securement device, comprising: the cutter comprises a blade fixing seat and an arc-shaped cutting knife matched and connected with the blade fixing seat; wherein
The blade fixing seat comprises a cylindrical base body with a hollow structure in the axial direction and a pair of annular wings which are respectively connected with two ends of the base body in the axial direction;
the annular wing is vertically connected with the base body; and
the edges of the pair of annular wings are respectively provided with an arc-shaped extension part, namely a pair of arc-shaped extension parts are formed; the pair of arc-shaped extending parts are symmetrically distributed;
the arc cutting knife is distributed along the circumferential direction of the base body, and the two axial ends of the arc cutting knife are respectively connected with a pair of arc extending parts in an inserting mode.
In a preferred embodiment of the present invention, the arc-shaped extension is disposed coplanar with the annular wing; and
the arc-shaped extension part accounts for 1/5-1/4 of the circumferential direction of the annular wing.
In a preferred embodiment of the present invention, the arc length of the arc cutter is not greater than the arc length of the arc extension.
The utility model discloses a ureter fixing device is realized like this:
a urinary catheter securement device, comprising: the catheter fixing assembly and the cutting knife assembly; wherein
The catheter fixing assembly comprises a catheter fixing seat and a cover body, wherein the catheter fixing seat is suitable for accommodating the catheter, and the cover body is suitable for covering the catheter fixing seat; and
and the basal body of the cutting knife component is connected with the catheter fixing seat in a rotating fit manner.
In a preferred embodiment of the present invention, the catheter fixing base includes a base having a cylindrical structure, an axially hollow central axial column vertically disposed at an axial center portion of the base, a clamping portion having a hollow axial inner cavity and vertically connected to the base and circumferentially distributed around the central axial column, and a pair of notches disposed on a side wall of the base and adapted to allow the ureter to extend out; wherein
At least one axial groove is formed in the side wall of the clamping portion along the axis parallel to the clamping portion;
the base member is around establishing the circumference outside of joint portion is in order to form the draw-in groove that is suitable for the joint ureter between the inside wall of the base member outside and base.
In a preferred embodiment of the present invention, a bearing body is further disposed between the circumferential outer sidewall of the clamping portion and the inner sidewall of the base body;
the clamping part penetrates through the bearing body to realize the matching and fixing between the guide pipe fixing seat and the bearing body.
In a preferred embodiment of the present invention, the ureter fixing device further comprises a body surface fixing paste, and a base fixedly connected with the body surface fixing paste;
the catheter fixing seat is rotatably matched and connected with the base.
In a preferred embodiment of the present invention, the base includes a body having a circular structure, and a connecting portion vertically connected to an axis of the body;
the connecting part is suitable for being clamped with the middle shaft column to realize the rotating matching of the base and the catheter fixing seat.
In a preferred embodiment of the present invention, the end of the connecting portion away from the body has an annular protrusion; and
at least one axial slot is arranged on the side wall of the connecting part along the axis parallel to the connecting part.
In a preferred embodiment of the present invention, the end surface of the body surface fixing paste facing away from the base is a flat end surface.
By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a cutting knife subassembly and use this cutting knife subassembly's ureter fixing device, the arc cutting knife along the circumference of base member distributes for the blade fixing base can cut off the ureter along rotatory orbit at the in-process of synchronous revolution when along with the tractive ureter, that is to say that the cutting direction of cutting the ureter is the direction of rotation of blade fixing base, and the revolving force of blade fixing base can the cutting process of helping hand cutting knife promptly, thereby improves the efficiency of cutting knife cutting ureter.
In addition, set up the bearing between catheter fixing base and blade fixing base for the blade fixing base can be more smooth and easy for the catheter fixing base is rotatory, so, at the tractive ureter in order to drive the in-process of blade fixing base for the catheter fixing base is rotatory, thereby can improve the rotatory speed of blade fixing base and accelerate the cutting efficiency of arc cutting knife to the ureter.
Drawings
FIG. 1 is a schematic view of the whole structure of the catheter fixing device of the present invention in a state of being embedded with a catheter;
fig. 2 is a first view structure diagram of the urinary catheter fixing device of the present invention;
fig. 3 is a second view structure diagram of the urinary catheter fixing device of the present invention;
fig. 4 is a third view structure diagram of the urinary catheter fixing device of the present invention;
FIG. 5 is a schematic view of the blade holder and the bearing body of the urinary catheter fixing device according to the present invention;
FIG. 6 is a schematic view of the fit between the catheter fixing base and the base of the catheter fixing device of the present invention;
FIG. 7 is a schematic view of the catheter fixing base of the catheter fixing device of the present invention;
FIG. 8 is a schematic view of the base of the urinary catheter securement device of the present invention;
FIG. 9 is a schematic view of a catheter securement assembly of the urinary catheter securement device of the present invention;
FIG. 10 is a partial schematic view of the ureter fixation device of the present invention;
fig. 11 is a schematic cross-sectional view of the fitting structure of the base of the urinary catheter fixing device and the catheter fixing seat of the present invention.
In the figure: the device comprises an arc-shaped cutting knife 1, a base body 2, an annular wing 3, an arc-shaped extension part 5, a cover body 6, a ureter 7, a base 9, a clamping part 10, a notch 11, a clamping groove 12, a bearing body 15, a body surface fixing paste 16, a body 17 and a connecting part 18.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
Example 1:
referring to fig. 1 to 5, the present embodiment provides a cutting knife assembly for a urinary catheter 7 fixing device, comprising: the cutting device comprises a blade fixing seat and an arc-shaped cutting knife 1 matched and connected with the blade fixing seat; the blade fixing seat comprises a cylindrical base body 2 with a hollow structure in the axial direction and a pair of annular wings 3 which are respectively connected with two axial ends of the base body 2, namely the base body 2 is provided with a hollow cavity which is communicated with the two axial ends; the annular fin 3 is vertically connected with the base body 2, and optionally, the annular fin 3 and the base body 2 are integrally formed.
In addition, the edges of the pair of annular wings 3 are respectively provided with an arc-shaped extension part 5, namely a pair of arc-shaped extension parts 5 are formed; the pair of arc-shaped extending parts 5 are symmetrically distributed; the arc cutting knife 1 is distributed along the circumferential direction of the base body 2, and the two axial ends of the arc cutting knife 1 are respectively connected with a pair of arc extending parts 5 in an inserting mode. The curved cutting blades 1 are distributed along the circumference of the base body 2, i.e. the cutting path of the cutting blades for the urinary catheter 7 coincides with the rotation path of the blade holder.
Preferably, the arc-shaped extension 5 is arranged coplanar with the annular wing 3; and the arc-shaped extension parts 5 occupy 1/5-1/4 of the circumferential direction of the annular wing 3. And the arc length of the arc cutting knife 1 is not more than that of the arc extension part 5. The structural design can meet the requirement of cutting the catheter and does not influence the fixation of the catheter.
Example 2:
referring to fig. 1 to 9, on the basis of the cutter assembly of embodiment 1, the present embodiment provides a urinary catheter fixing device, including: the catheter fixing component and the cutting knife component; wherein the catheter fixing component comprises a catheter fixing seat suitable for accommodating the catheter 7 and a cover body 6 suitable for covering the catheter fixing seat; the cover body 6 and the catheter fixing seat can be opened relatively or closed relatively, so that the urinary catheter 7 can be placed and taken out conveniently.
In view of the labor saving in pulling the urinary catheter 7 for driving the cutter assembly to rotate, the base body 2 of the cutter assembly of the present embodiment is connected with the catheter fixing base in a running fit.
In detail, the catheter fixing seat comprises a base 9 with a cylindrical structure, an axially hollow central shaft column 21 vertically arranged at the axial center part of the base 9, clamping parts 10 which are vertically connected with the base 9 and distributed around the circumference of the central shaft column 21 and are provided with hollow axial inner cavities, and a pair of notches 11 which are arranged on the side wall of the base 9 and are suitable for the extension of the urinary catheter 7. Wherein at least one axial groove 22 is arranged on the side wall of the clamping part 10 along the axis parallel to the clamping part 10; the vertical height of the clamping part 10 relative to the base 9 is larger than that of the central shaft column 21 relative to the base 9. The cross section of the clamping part 10 is preferably circular, and the clamping part 10 is provided with a hollow cavity communicated with two axial ends of the clamping part 10; wherein the base body 2 is wound on the circumferential outer side of the clamping part 10 to form a clamping groove 12 suitable for clamping the urinary catheter 7 between the outer side of the base body 2 and the inner side wall of the base 9.
The embodiment that the basal body 2 of the cutting knife component is connected with the catheter fixing seat in a rotating fit mode is realized through the following modes: a bearing body 15 is arranged between the circumferential outer side wall of the clamping part 10 and the inner side wall of the base body 2; the clamping portion 10 penetrates through the bearing body 15 to realize the matching and fixing between the catheter fixing seat and the bearing body 15. When the axial groove 22 arranged on the side wall of the clamping portion 10 enables the clamping portion 10 to be matched with the bearing body 15, the deformation of the clamping portion 10 can be achieved by utilizing the axial groove 22, so that the tight-fit effect between the clamping portion 10 and the bearing body 15 is achieved. In this way, under the action of the bearing body 15, the base body 2 can rotate around the snap-in portion 10, that is to say the blade holder can rotate around the catheter holder.
In addition, it should be noted that the urinary catheter 7 fixing device of the present embodiment further includes a body surface fixing patch 16, and a base fixedly connected to the body surface fixing patch 16; the catheter fixing seat is rotatably matched and connected with the base, so that the catheter fixing seat can rotate freely around the axis of the base.
In detail, the base comprises a body 17 with a circular structure, and a connecting part 18 vertically connected with the axis of the body 17; the connecting portion 18 is adapted to engage with the central shaft post 21 to rotatably couple the base to the catheter holder. More specifically, the end of the connecting portion 18 remote from the body 17 has an annular projection 25; and at least one axial slot 28 in the side wall of the connection portion 18 along an axis parallel to the connection portion 18. It should be noted here that the axial slot 28 is designed such that during the process of mating the connecting portion 18 with the central stud 21, the connecting portion 18 can be deformed by the axial slot 28 to achieve the engagement between the connecting portion 18 and the central stud 21, and the annular protrusion 25 is designed such that the annular protrusion 25 can be seated on the central stud 21 after the engagement between the connecting portion 18 and the central stud 21 is completed. Under the optional circumstances here, to there being the tiny clearance between the inside wall of the lateral wall of the part of non-annular protruding 25 on connecting portion 18 and well jack post 21, the design of this tiny clearance makes and can realize relative rotation between base and the pipe fixing base, and in the in-service use process, when the patient that uses the ureter fixing device of this embodiment appears the health swing, medical catheter 7 can be along with the pipe fixing base for the base free rotation swing angle not influenced, has improved drainage process's travelling comfort
In addition, the end surface of the body surface fixing patch 16 facing away from the base is a flat end surface. When the body surface fixing patch 16 is attached to the body surface of a patient, no gap is formed between the contact surfaces, sweat possibly generated at the gap on the body surface of the patient exists in the actual long-time use process, and the sweat is accumulated at the gap and can generate red rash on the body surface to generate discomfort of the skin. And the flat end face and the body surface adopted by the embodiment can be completely attached, so that the existence of the gap between the body surface fixing paste 16 and the body surface can be reduced.
In conclusion, the urinary catheter 7 fixing device of the embodiment is directly pasted on the body surface of a patient by using the body surface fixing paste 16, then the medical urinary catheter 7 to be fixed is placed between the outer side of the base body 2 and the inner side wall of the base 9 to form the clamping groove 12 suitable for clamping the urinary catheter 7, the cover body 6 is covered with the catheter fixing seat, when the medical urinary catheter 7 is not pulled by excessive external force, the body of the patient swings, the medical urinary catheter 7 can freely rotate along with the catheter fixing seat, the swing angle is not affected, and the comfort in the drainage process is improved; if receive external force tractive when, water pocket in excessive external force tractive bladder, medical catheter 7 is rotatory because frictional force automatic drive blade fixing base, at rotatory in-process, because the design of bearing body 15 can improve the rotatory smooth and easy degree of blade fixing base, waits to rotate certain angle after arc cutting knife 1 and the contact of medical catheter 7, automatic cutout medical catheter 7 prevents excessive tractive, causes the bladder damage.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. A cutting knife assembly adapted for use with a urinary catheter securement device, comprising: the cutter comprises a blade fixing seat and an arc-shaped cutting knife matched and connected with the blade fixing seat; wherein
The blade fixing seat comprises a cylindrical base body with a hollow structure in the axial direction and a pair of annular wings which are respectively connected with two ends of the base body in the axial direction;
the annular wing is vertically connected with the base body; and
the edges of the pair of annular wings are respectively provided with an arc-shaped extension part, namely a pair of arc-shaped extension parts are formed; the pair of arc-shaped extending parts are symmetrically distributed;
the arc cutting knife is distributed along the circumferential direction of the base body, and the two axial ends of the arc cutting knife are respectively connected with a pair of arc extending parts in an inserting mode.
2. The cutting burr assembly of claim 1, wherein the arcuate extension is disposed coplanar with the annular fin; and
the arc-shaped extension part accounts for 1/5-1/4 of the circumferential direction of the annular wing.
3. The cutting assembly as claimed in any one of claims 1 or 2, wherein the arcuate cutting blade has an arc length no greater than an arc length of the arcuate extension.
4. A urinary catheter securement device, comprising: a catheter securement assembly and a cutter assembly according to any one of claims 1 to 3; wherein
The catheter fixing assembly comprises a catheter fixing seat and a cover body, wherein the catheter fixing seat is suitable for accommodating the catheter, and the cover body is suitable for covering the catheter fixing seat; and
and the basal body of the cutting knife component is connected with the catheter fixing seat in a rotating fit manner.
5. The urinary catheter fixing device according to claim 4, wherein the catheter fixing seat comprises a base with a cylindrical structure, an axially hollow central shaft column vertically arranged at the axial center part of the base, clamping parts which are vertically connected with the base and distributed around the circumference of the central shaft column and provided with hollow axial inner cavities, and a pair of notches which are arranged on the side wall of the base and are suitable for the urinary catheter to extend out; wherein
At least one axial groove is formed in the side wall of the clamping portion along the axis parallel to the clamping portion;
the base member is around establishing the circumference outside of joint portion is in order to form the draw-in groove that is suitable for the joint ureter between the inside wall of the base member outside and base.
6. The urinary catheter fixing device according to claim 5, wherein a bearing body is further provided between the circumferential outer side wall of the clamping portion and the inner side wall of the base body;
the clamping part penetrates through the bearing body to realize the matching and fixing between the guide pipe fixing seat and the bearing body.
7. The urinary catheter fixing device according to claim 5, further comprising a body surface fixing patch, and a base fixedly connected with the body surface fixing patch;
the catheter fixing seat is rotatably matched and connected with the base.
8. The urinary catheter fixing device according to claim 7, wherein the base comprises a body of a circular structure and a connecting part vertically connected with the axis center of the body;
the connecting part is suitable for being clamped with the middle shaft column to realize the rotating matching of the base and the catheter fixing seat.
9. The urinary catheter fixing device according to claim 8, wherein the end of the connecting portion remote from the body has an annular projection; and
at least one axial slot is arranged on the side wall of the connecting part along the axis parallel to the connecting part.
10. The urinary catheter fixing device according to claim 8, wherein the end surface of the body surface fixing paste facing away from the base is a flat end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021081292.3U CN213220373U (en) | 2020-06-12 | 2020-06-12 | Cutting knife assembly and urinary catheter fixing device using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021081292.3U CN213220373U (en) | 2020-06-12 | 2020-06-12 | Cutting knife assembly and urinary catheter fixing device using same |
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| CN213220373U true CN213220373U (en) | 2021-05-18 |
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| CN202021081292.3U Active CN213220373U (en) | 2020-06-12 | 2020-06-12 | Cutting knife assembly and urinary catheter fixing device using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042898A (en) * | 2018-01-04 | 2018-05-18 | 广东体达康医疗科技有限公司 | One kind can anti-drawing urinary catheter fixing device |
-
2020
- 2020-06-12 CN CN202021081292.3U patent/CN213220373U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042898A (en) * | 2018-01-04 | 2018-05-18 | 广东体达康医疗科技有限公司 | One kind can anti-drawing urinary catheter fixing device |
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