CN113693795B - Prosthetic limb disengaging device - Google Patents
Prosthetic limb disengaging device Download PDFInfo
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- CN113693795B CN113693795B CN202111002460.4A CN202111002460A CN113693795B CN 113693795 B CN113693795 B CN 113693795B CN 202111002460 A CN202111002460 A CN 202111002460A CN 113693795 B CN113693795 B CN 113693795B
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- Prior art keywords
- push rod
- prosthesis
- rod seat
- prosthetic
- main body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/78—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5016—Prostheses not implantable in the body adjustable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/78—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
- A61F2002/7887—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump for connecting limb exoprostheses to the stump bone
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides a prosthetic limb disengaging gear, which relates to the technical field of prosthetic limbs and comprises: the push rod seat, the ejector rod seat and the push block component; by arranging the installation hole on the push rod seat and arranging the push block component in the installation hole, under normal conditions, the push block component in the installation hole stretches into the inclined plane groove on the push rod main body, the push rod seat and the push rod seat are relatively firm, the connection between the proximal end of the prosthesis and the distal end of the prosthesis is stable, when the stress applied to the osseointegration prosthesis by the prosthesis is larger than the set external force, the push block component is extruded by the inclined plane groove, the push block component stretches out from the inclined plane groove, the proximal end of the prosthesis and the distal end of the prosthesis are separated, the stress of the distal end of the osseointegration prosthesis is not transmitted to the proximal end any more, and further, the joint of the osseointegration prosthesis and the bone marrow cavity is prevented from being subjected to excessive external force, and the displacement and the separation of the osseointegration prosthesis are avoided.
Description
Technical Field
The invention relates to the technical field of artificial limbs, in particular to an artificial limb disengaging gear.
Background
Osseointegrated prostheses are one way of connecting a prosthesis to a limb. The osseointegrated prosthesis is divided into two parts, namely a proximal prosthesis end and a distal prosthesis end. The proximal portion of the prosthesis is positioned in the body and secured within the diaphyseal cavity. The prosthesis distal portion is located outside the body and is coupled to the limb prosthesis portion. The prosthesis matched with the osseointegration prosthesis is different from the traditional socket prosthesis, and the prosthesis is connected with the prosthesis through an inserting and pulling mode. The osseointegrated prosthesis fundamentally solves the problems that the traditional artificial limb has poor air permeability due to the interface environment of the receiving cavity and the residual limb, limited moving range, infection of the residual limb caused by friction, limitation that the artificial limb cannot be installed due to too short residual limb, and the like.
The key technical problem of the osseointegrated prosthesis is how to prevent the problem that the joint of the proximal part of the osseointegrated prosthesis and the bone marrow cavity is displaced and separated due to external force. The existing osseointegration prosthesis is rigidly connected with the bone marrow cavity, and when the prosthesis is stressed, the bone marrow cavity is directly transmitted through the osseointegration prosthesis. In the force transmission system, the joint of the osseointegration prosthesis and the bone marrow cavity is the weakest link.
However, when the patient's prosthesis is subjected to excessive force, the stress at the junction of the osteointegrative prosthesis and the bone marrow cavity exceeds the bonding strength therebetween, and displacement or extraction of the osteointegrative prosthesis may occur. Once the above occurs, a secondary operation is required and great pain is brought to the body and mind of the patient.
Disclosure of Invention
The invention aims to provide a prosthetic disengaging gear, which is used for relieving the technical problem that when a patient prosthetic limb bears excessive force, the stress at the joint of the osseointegration prosthetic limb and a bone marrow cavity exceeds the joint strength between the osseointegration prosthetic limb and the bone marrow cavity, and the osseointegration prosthetic limb can shift or deviate from.
In a first aspect, the present invention provides a prosthetic decoupling device comprising: the push rod seat, the ejector rod seat and the push block component;
the push rod seat is used for being installed in the prosthesis proximal end, the push rod seat is used for being installed in the prosthesis distal end, the prosthesis proximal end is detachably connected with the prosthesis distal end, the push rod seat is provided with a mounting hole, the push block component is arranged in the mounting hole, one end, close to the push rod seat, of the push rod seat is provided with a push rod main body, the push rod main body stretches into the push rod seat, the push rod main body is provided with an inclined groove, and the push block component is configured to stretch into the inclined groove so as to fix the push rod main body in the push rod seat.
In an alternative embodiment of the present invention,
the prosthetic decoupling device further comprises a spring member and a set screw;
the spring component and the fixing screw are both arranged in the mounting hole, the fixing screw can be connected with the hole wall of the mounting hole, one end of the spring component is connected with the pushing block component, the other end of the spring component is connected with the fixing screw, and the spring component is configured to enable the pushing block component to have a movement trend of extending into the inclined surface groove.
In an alternative embodiment of the present invention,
the prosthetic decoupling device further comprises a first fixing bolt;
the push rod seat is provided with a first connecting hole, and the first fixing bolt penetrates through the first connecting hole to be connected with the proximal end of the prosthesis.
In an alternative embodiment of the present invention,
the push rod seat is provided with a central hole, and the push rod main body penetrates through the central hole and stretches into the push rod seat.
In an alternative embodiment of the present invention,
the prosthetic decoupling device further comprises a second fixing bolt;
the ejector rod seat is provided with a second connecting hole, and the second fixing bolt penetrates through the second connecting hole to be connected with the far end of the prosthesis.
In an alternative embodiment of the present invention,
the prosthetic decoupling device further comprises an anti-decoupling member;
the anti-falling component is connected with one end of the ejector rod main body far away from the ejector rod seat, and the anti-falling component is configured to limit the movement range of the ejector rod main body.
In an alternative embodiment of the present invention,
the anti-falling component comprises a baffle plate;
the ejector rod main body penetrates through the central hole and is connected with the baffle, a through hole is formed in the proximal end of the prosthesis, and the baffle can slide in the through hole.
In an alternative embodiment of the present invention,
the outer diameter of the baffle is larger than the inner diameter of the central hole.
In an alternative embodiment of the present invention,
the anti-falling component further comprises an anti-falling screw;
the anti-falling screw penetrates through the baffle plate to be connected with the ejector rod main body.
In an alternative embodiment of the present invention,
the proximal end of the prosthesis is provided with a connecting protrusion, the distal end of the prosthesis is provided with a connecting groove, and the connecting protrusion can extend into the connecting groove.
The invention provides a prosthetic disengaging device, comprising: the push rod seat, the ejector rod seat and the push block component; the push rod seat is used for being installed in the prosthesis proximal end, the push rod seat is used for being installed in the prosthesis distal end, the prosthesis proximal end is detachably connected with the prosthesis distal end, the push rod seat is provided with a mounting hole, the push block component is arranged in the mounting hole, one end, close to the push rod seat, of the push rod seat is provided with a push rod main body, the push rod main body stretches into the push rod seat, the push rod main body is provided with an inclined surface groove, and the push block component is configured to stretch into the inclined surface groove so as to fix the push rod main body in the push rod seat. By arranging the installation hole on the push rod seat and arranging the push block component in the installation hole, under normal conditions, the push block component in the installation hole stretches into the inclined plane groove on the push rod main body, the push rod seat and the push rod seat are relatively firm, the connection between the proximal end of the prosthesis and the distal end of the prosthesis is stable, when the stress applied to the osseointegration prosthesis by the prosthesis is larger than the set external force, the push block component is extruded by the inclined plane groove, the push block component stretches out of the inclined plane groove, the proximal end of the prosthesis and the distal end of the prosthesis are separated, the stress of the distal end of the osseointegration prosthesis is not transmitted to the proximal end any more, and further, the joint of the osseointegration prosthesis and the bone marrow cavity is prevented from exceeding the allowable external force, the displacement and the separation of the osseointegration prosthesis are avoided, and the technical problems that the stress of the joint of the osseointegration prosthesis and the bone marrow cavity exceeds the bonding strength between the two when the artificial limb of a patient bears excessive force in the prior art are relieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of a prosthetic decoupling device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a prosthetic device according to an embodiment of the present invention in a locked state;
fig. 3 is a sectional view showing the structure of the prosthetic release device according to the embodiment of the invention in an unlocked state.
Icon: 100-a push rod seat; 110-a first connection hole; 120-a central hole; 130-mounting holes; 200-a push rod seat; 210-a push rod main body; 211-bevel grooves; 220-a second connection hole; 300-pusher member; 310-a spring member; 320-fixing screws; 400-a first fixing bolt; 500-a second fixing bolt; 600-anti-falling component; 610-a baffle; 620-anti-drop screw; 700-proximal prosthesis end; 710—connecting projections; 720-through holes; 800-prosthesis distal end; 810-connection slots.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1, the prosthetic detachment device provided in this embodiment includes: a push rod seat 100, a push rod seat 200 and a push block member 300; the push rod holder 100 is used to be mounted in the proximal prosthesis end 700, the push rod holder 200 is used to be mounted in the distal prosthesis end 800, the proximal prosthesis end 700 is detachably connected with the distal prosthesis end 800, the push rod holder 100 is provided with a mounting hole 130, the push rod member 300 is arranged in the mounting hole 130, one end of the push rod holder 200 near the push rod holder 100 is provided with a push rod body 210, the push rod body 210 extends into the push rod holder 100, the push rod body 210 is provided with a bevel groove 211, and the push rod member 300 is configured to extend into the bevel groove 211 so as to fix the push rod body 210 in the push rod holder 100.
Specifically, the push rod seat 100 is installed in the proximal prosthesis end 700, the installation hole 130 is formed along the radial direction of the push rod seat 100, the push block member 300 is located in the installation hole 130, the push block member 300 can slide in the installation hole 130, the push rod seat 200 is installed in the distal prosthesis 800, the push rod seat 200 is provided with the push rod main body 210, the push rod main body 210 penetrates through the push rod seat 100 to extend into the proximal prosthesis end 700, the end face of the push block member 300 extends into the inclined surface groove 211 on the push rod main body 210, the push rod main body 210 is subjected to limiting force, the proximal prosthesis end 700 is connected with the distal prosthesis end 800, when the osseointegration prosthesis is subjected to external force exceeding an allowable value, the push block member 300 is separated from the inclined surface groove 211, the push rod main body 210 moves in the direction away from the proximal prosthesis end 700, the proximal prosthesis end 700 slides relatively to the distal prosthesis end 800, and the osseointegration prosthesis is prevented from being shifted and separated.
The prosthetic decoupling device provided in this embodiment includes: a push rod seat 100, a push rod seat 200 and a push block member 300; by providing the installation hole 130 on the push rod seat 100, the push block member 300 is disposed in the installation hole 130, under normal conditions, the push block member 300 in the installation hole 130 extends into the inclined surface groove 211 on the push rod main body 210, the connection between the proximal prosthesis 700 and the distal prosthesis 800 is stable, when the stress applied to the osteosynthesis prosthesis by the prosthesis is greater than the set external force, the push block member 300 is extruded by the inclined surface groove 211, the push block member 300 extends out of the inclined surface groove 211, the proximal prosthesis 700 and the distal prosthesis 800 are separated, the stress of the distal osteosynthesis prosthesis 800 is not transmitted to the proximal end any more, and further, the exceeding of the allowable external force is avoided at the joint of the osteosynthesis prosthesis and the bone marrow cavity, the occurrence of the displacement and the escape of the osteosynthesis prosthesis is avoided, and the technical problem that the displacement or the escape of the osteosynthesis prosthesis occurs when the stress at the joint of the osteosynthesis prosthesis and the bone cavity exceeds the bonding strength of the two when the prosthesis of a patient is subjected to excessive force in the prior art is relieved.
On the basis of the above embodiment, as shown in fig. 2 and 3, in an alternative embodiment, the prosthetic detachment device provided in this embodiment further includes a spring member 310 and a set screw 320; the spring member 310 and the fixing screw 320 are both disposed in the mounting hole 130, the fixing screw 320 can be connected with a wall of the mounting hole 130, one end of the spring member 310 is connected with the push block member 300, the other end of the spring member 310 is connected with the fixing screw 320, and the spring member 310 is configured to enable the push block member 300 to have a movement tendency of extending into the inclined surface groove 211.
Specifically, the spring member 310 is disposed between the set screw 320 and the pusher member 300, the spring member 310 is specifically configured as a compression spring, the spring member 310 is configured to compress the pusher member 300 in the ramped recess 211 to increase the threshold of the disengagement force of the distal prosthesis 800 from the proximal prosthesis 700, and the spring member 310 is configured to allow the pusher member 300 to naturally extend into the ramped recess 211 to complete the locking between the proximal prosthesis 700 and the distal prosthesis 800.
In an alternative embodiment, the prosthetic decoupling device further comprises a first fixation bolt 400; the push rod seat 100 is provided with a first coupling hole 110, and the first fixing bolt 400 is coupled to the proximal prosthesis 700 through the first coupling hole 110.
Specifically, the push rod 100 is provided with a first connecting hole 110, a plurality of first connecting holes 110 and a plurality of first fixing bolts 400 can be correspondingly arranged, and the first fixing bolts 400 penetrate through the first connecting holes 110 and extend into the proximal prosthesis 700 to fix the push rod 100 on the proximal prosthesis 700.
In an alternative embodiment, the push rod holder 100 is provided with a central hole 120, and the push rod body 210 protrudes into the push rod holder 100 through the central hole 120.
Specifically, a central hole 120 is formed at the axial position of the push rod seat 100, and the push rod body 210 extends into the push rod seat 100 through the central hole 120 and passes out of the push rod seat 100.
In an alternative embodiment, the prosthetic decoupling device further comprises a second fixation bolt 500; the push rod seat 200 is provided with a second connection hole 220, and the second fixing bolt 500 is connected to the prosthesis distal end 800 through the second connection hole 220.
Specifically, the ejector pin seat 200 is provided with a plurality of second connecting holes 220, and a plurality of second connecting holes 220 and second fixing bolts 500 can be correspondingly arranged, and the second fixing bolts 500 penetrate through the second connecting holes 220 and extend into the prosthesis distal end 800 to fix the ejector pin seat 200 on the prosthesis proximal end 700.
The prosthetic release device according to the present embodiment fixes the push rod rest 100 and the push rod rest 200 to the proximal prosthesis 700 and the distal prosthesis 800, respectively, by the arrangement of the first fixing bolt 400 and the second fixing bolt 500.
On the basis of the above embodiment, in an alternative implementation manner, the prosthetic detachment device provided in this embodiment further includes an anti-detachment member 600; the escape prevention member 600 is connected to an end of the push rod body 210 remote from the push rod seat 200, and the escape prevention member 600 is configured to be capable of limiting a moving range of the push rod body 210.
Specifically, the anti-falling member 600 is disposed at one end of the push rod body 210 extending into the proximal end 700 of the prosthesis through the push rod seat 100, and when the osseointegrated prosthesis is subjected to an external force exceeding an allowable value, the two portions of the distal end 800 of the osseointegrated prosthesis slide relatively, and the anti-falling member 600 prevents the push rod body 210 from falling out of the central hole 120 of the push rod seat 100, so that the push rod body 210 is always limited in the central hole 120.
In an alternative embodiment, the anti-drop member 600 includes a flap 610; the stem body 210 is connected to the flap 610 through the central hole 120, and the proximal prosthesis 700 is provided with a through hole 720, the flap 610 being slidable within the through hole 720.
Specifically, the blocking piece 610 is located in the through hole 720 of the proximal end 700 of the prosthesis, the blocking piece 610 is connected with the end portion of the push rod main body 210 penetrating through the central hole 120, the blocking piece 610 can be abutted against the push rod seat 100, the sliding range of the push rod main body 210 is limited, and further the distal end 800 of the prosthesis is prevented from being separated from the proximal end 700 of the prosthesis.
In an alternative embodiment, the outside diameter dimension of the flap 610 is greater than the inside diameter dimension of the central aperture 120.
Specifically, the outer diameter of the blocking piece 610 is smaller than the inner diameter of the through hole 720, so that the blocking piece 610 can slide in the through hole 720, the outer diameter of the blocking piece 610 is larger than the inner diameter of the central hole 120, and the blocking piece 610 can be abutted on the push rod seat 100.
In an alternative embodiment, the anti-drop member 600 further includes an anti-drop screw 620; the escape prevention screw 620 is coupled to the stem body 210 through the blocking piece 610.
Specifically, the anti-drop screw 620 extends into the ram body 210 through the flap 610, securing the flap 610 to the end of the ram body 210.
In an alternative embodiment, the proximal prosthesis 700 is provided with attachment tabs 710 and the distal prosthesis 800 is provided with attachment slots 810, the attachment tabs 710 being capable of extending into the attachment slots 810.
Specifically, the coupling protrusion 710 is disposed at a side of the proximal prosthesis 700 near the distal prosthesis 800, and the coupling groove 810 is disposed at a side of the distal prosthesis 800 near the proximal prosthesis 700, so that the coupling protrusion 710 is inserted into the coupling groove 810 to complete the coupling of the proximal prosthesis 700 and the distal prosthesis 800.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. A prosthetic decoupling device comprising: a push rod seat (100), a push rod seat (200) and a push block component (300);
the push rod seat (100) is used for being installed in a prosthesis proximal end (700), the push rod seat (200) is used for being installed in a prosthesis distal end (800), the prosthesis proximal end (700) is detachably connected with the prosthesis distal end (800), the push rod seat (100) is provided with a mounting hole (130), the push rod member (300) is arranged in the mounting hole (130), one end, close to the push rod seat (100), of the push rod seat (200) is provided with a push rod main body (210), the push rod main body (210) stretches into the push rod seat (100), and the push rod main body (210) is provided with a bevel groove (211), and the push rod member (300) is configured to stretch into the bevel groove (211) so as to fix the push rod main body (210) in the push rod seat (100);
the prosthetic decoupling device further comprises a spring member (310) and a set screw (320);
the spring component (310) and the fixing screw (320) are both arranged in the mounting hole (130), the fixing screw (320) can be connected with the hole wall of the mounting hole (130), one end of the spring component (310) is connected with the pushing block component (300), the other end of the spring component (310) is connected with the fixing screw (320), and the spring component (310) is configured to enable the pushing block component (300) to have a movement trend of extending into the inclined surface groove (211);
the push rod seat (100) is provided with a central hole (120), and the push rod main body (210) penetrates through the central hole (120) and stretches into the push rod seat (100);
the prosthetic decoupling device further comprises an anti-decoupling member (600);
the anti-falling component (600) is connected with one end of the ejector rod main body (210) far away from the ejector rod seat (200), and the anti-falling component (600) is configured to limit the moving range of the ejector rod main body (210);
the anti-drop member (600) comprises a baffle (610);
the ejector rod main body (210) passes through the central hole (120) to be connected with the baffle (610), the proximal end (700) of the prosthesis is provided with a through hole (720), and the baffle (610) can slide in the through hole (720);
the flap (610) has an outer diameter dimension that is greater than an inner diameter dimension of the central aperture (120).
2. The prosthetic decoupling device of claim 1, wherein the prosthetic device comprises a prosthetic device,
the prosthetic decoupling device further comprises a first fixing bolt (400);
the push rod seat (100) is provided with a first connecting hole (110), and the first fixing bolt (400) passes through the first connecting hole (110) to be connected with the proximal prosthesis end (700).
3. The prosthetic decoupling device of claim 1, wherein the prosthetic device comprises a prosthetic device,
the prosthetic decoupling device further comprises a second fixing bolt (500);
the ejector rod seat (200) is provided with a second connecting hole (220), and the second fixing bolt (500) passes through the second connecting hole (220) to be connected with the prosthesis distal end (800).
4. The prosthetic decoupling device of claim 1, wherein the prosthetic device comprises a prosthetic device,
the anti-drop member (600) further comprises an anti-drop screw (620);
the anti-falling screw (620) penetrates through the baffle (610) to be connected with the ejector rod main body (210).
5. The prosthetic decoupling device of any one of claims 1-4,
the proximal prosthesis end (700) is provided with a connection protrusion (710) and the distal prosthesis end (800) is provided with a connection groove (810), the connection protrusion (710) being able to extend into the connection groove (810).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002460.4A CN113693795B (en) | 2021-08-30 | 2021-08-30 | Prosthetic limb disengaging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002460.4A CN113693795B (en) | 2021-08-30 | 2021-08-30 | Prosthetic limb disengaging device |
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| CN113693795A CN113693795A (en) | 2021-11-26 |
| CN113693795B true CN113693795B (en) | 2023-06-09 |
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| CN118105217B (en) * | 2024-04-29 | 2024-07-12 | 北京纳通医疗科技控股有限公司 | Overload protection device for artificial limb and artificial limb |
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| CN1545989A (en) * | 2003-11-28 | 2004-11-17 | 清华大学 | Implantation body protective equipment for bone implantation type artificial limb |
| CN105025847A (en) * | 2013-02-26 | 2015-11-04 | 麦迪有限及两合公司 | Prosthetic attachment lock |
| CN106618816A (en) * | 2016-11-22 | 2017-05-10 | 中国人民解放军第四军医大学 | Novel prosthetic limb connecting device |
| CN207125823U (en) * | 2017-11-21 | 2018-03-23 | 韦钰琦 | A kind of fixing device of implanting artificial limb |
| CN209933085U (en) * | 2019-04-03 | 2020-01-14 | 王耀 | Leg covering artificial limb convenient to assemble |
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| CN112972078A (en) * | 2021-02-05 | 2021-06-18 | 中国科学院力学研究所 | Mechanical property optimized implanted artificial limb |
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| GB2411841B (en) * | 2004-03-12 | 2006-08-09 | Univ London | Prosthetic limb attachment |
| US8246693B2 (en) * | 2005-07-20 | 2012-08-21 | University Of Utah Research Foundation | Releasible attachment system for a prosthetic limb |
| GB2479532A (en) * | 2010-04-12 | 2011-10-19 | Stanmore Implants Worldwide Ltd | Fail-safe attachment for prosthetic limb |
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| CN1545989A (en) * | 2003-11-28 | 2004-11-17 | 清华大学 | Implantation body protective equipment for bone implantation type artificial limb |
| CN105025847A (en) * | 2013-02-26 | 2015-11-04 | 麦迪有限及两合公司 | Prosthetic attachment lock |
| CN106618816A (en) * | 2016-11-22 | 2017-05-10 | 中国人民解放军第四军医大学 | Novel prosthetic limb connecting device |
| CN207125823U (en) * | 2017-11-21 | 2018-03-23 | 韦钰琦 | A kind of fixing device of implanting artificial limb |
| CN209933085U (en) * | 2019-04-03 | 2020-01-14 | 王耀 | Leg covering artificial limb convenient to assemble |
| CN110811931A (en) * | 2019-11-14 | 2020-02-21 | 胡永成 | Backbone prosthesis of pronation type expansion pipe structure handle and use method |
| CN112972078A (en) * | 2021-02-05 | 2021-06-18 | 中国科学院力学研究所 | Mechanical property optimized implanted artificial limb |
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