CN109077793B

CN109077793B - Adjustable supplementary lead device

Info

Publication number: CN109077793B
Application number: CN201810960911.7A
Authority: CN
Inventors: 彭旭
Original assignee: Chongqing Yubei District Chinese Medicine Hospital
Current assignee: Chongqing Yubei District Chinese Medicine Hospital
Priority date: 2018-08-22
Filing date: 2018-08-22
Publication date: 2020-07-03
Anticipated expiration: 2038-08-22
Also published as: CN109077793A

Abstract

The invention discloses an adjustable supplementing and guiding device which is used for patella suture. The needle comprises a connecting frame and a guide needle, wherein the connecting frame comprises a needle handle and a sleeve, a first connecting plate and a second connecting plate are axially arranged on the end surface of the needle handle, the first connecting plate and the second connecting plate are oppositely arranged at intervals, a first through hole is formed in the first connecting plate, a second through hole is formed in the second connecting plate, a connecting block is arranged at the end part of the sleeve, the connecting block is positioned between the first connecting plate and the second connecting plate and clamped with the first through hole and the second through hole on the two sides, and the angle of the connecting block relative to the first through hole and the second through hole is adjustable; the guide needle comprises a fixing rod and a needle body, the fixing rod is inserted into the sleeve, the fixing rod can slide up and down relative to the sleeve, the fixing rod is far away from the sleeve end and is provided with an insertion hole along the axial direction, the needle body is inserted into the insertion hole, the end, far away from the fixing rod, of the needle body is provided with a needle point, and the needle body is provided with a threading hole. This device has solved prior art needle point and has inserted and wear out inconveniently, influences the problem of seaming effect.

Description

Adjustable supplementary lead device

Technical Field

The invention relates to the field of medical instruments, in particular to an adjustable supplementing and guiding device for orthopedics.

Background

Patellar fracture is a common intra-articular fracture that requires fixation of the patella during treatment. The patella is usually fixed by a steel wire tension band ligation method. The specific operation mode is as follows: the steel wire tension belt is fixed on the waist needle by adopting a manual sewing mode, then the needle tip part of the waist needle is inserted into the patella, after the waist needle enters a certain depth, the needle tip is outwards picked and penetrates out from the other part, and finally the needle tip is pulled and the steel wire tension belt is led out from the patella. However, this method has the following problems: because the patella has a certain thickness, but the waist needle is a straight needle, in the cerclage process, if the needle tip is inserted into the patella through a large angle, the needle tip is not easy to dig out under the condition that the depth can reach the requirement; if the needle tip is inserted into the patella through a small angle, although the needle tip is easily dug out, the depth is insufficient, and the seaming effect is affected.

Disclosure of Invention

Aiming at the problems, the invention provides an adjustable supplementary guide device, which solves the problem that the insertion and the penetration of a needle point are inconvenient and the seaming effect is influenced in the prior art.

In order to achieve the purpose, the invention is realized by the following technical scheme: an adjustable augmentation guide for patellar suturing, comprising:

the connecting frame comprises a needle handle and a sleeve, a first connecting plate and a second connecting plate are axially arranged on the end face of the needle handle, the first connecting plate and the second connecting plate are oppositely arranged at intervals, a first through hole is formed in the first connecting plate, a second through hole is formed in the second connecting plate, a connecting block is arranged at the end part of the sleeve, the connecting block is located between the first connecting plate and the second connecting plate and clamped with the first through hole and the second through hole on the two sides, and the angle of the connecting block relative to the first through hole and the second through hole is adjustable; and

the needle comprises a fixing rod and a needle body, the fixing rod is inserted into the sleeve, the fixing rod is opposite to the sleeve and can slide up and down, the fixing rod is far away from the sleeve end and is provided with a jack along the axial direction, the needle body is inserted into the jack, the needle body is far away from the end of the fixing rod and is provided with a needle point, and the needle body is provided with a threading hole.

Further, the fixing rod is connected with the sleeve through threads, and the fixing rod moves up and down in the sleeve through threads.

Further, the connecting block comprises a bracket, a fixed shaft and an elastic element, the bracket is arranged on the end face of the sleeve far away from the guide pin, the fixed shaft is vertically crossed and connected with the bracket, one end of the fixed shaft is provided with a plurality of bulges along the circumferential direction, the other end of the fixed shaft is provided with a first snap ring and a second snap ring which are arranged at intervals, a plurality of grooves are arranged on the circumference of the first through hole and communicated with the through hole, the groove and the bulge are clamped and correspondingly matched, the second connecting block is positioned between the first clamping ring and the second clamping ring and is propped against the end surface of the first clamping ring, and a first elastic piece is arranged between the second connection and the second clamping ring, one end of the first connection elastic piece is abutted to the second connection, and the other end of the first connection elastic piece is abutted to the second clamping ring.

The needle handle is characterized by further comprising a thread fixing claw, the thread fixing claw is L-shaped, one end of the thread fixing claw is fixed on the outer side wall of the needle handle, the other end of the thread fixing claw abuts against the outer side wall of the needle handle, and the thickness of the thread fixing claw is smaller than 1 mm.

Further, still include the screens subassembly, the screens subassembly set up in on the dead lever lateral wall, the screens subassembly includes back shaft, depression bar, fixed pin and second elastic component, the back shaft is fixed on the dead lever lateral wall, the rotatable cover of depression bar is established on the back shaft, the fixed pin is located the one end of depression bar, the lateral wall of dead lever along radially be provided with the pinhole of dead lever, the pinhole with the jack communicates with each other, be provided with the fixed orifices on the leading needle, the pinhole with the fixed orifices is detained coaxially, the fixed pin passes pinhole and card are gone into in the fixed orifices, second elasticity is located the other one end of depression bar, second elasticity one end is fixed on the depression bar, other one end with the dead lever lateral wall offsets.

Furthermore, the outer wall of the needle body is provided with a rotation stopping step along the axial direction, the inner wall of the fixing rod is provided with a limiting groove along the axial direction, the limiting groove is communicated with the jack, and the rotation stopping step is inserted in the limiting groove.

The adjustable supplement device at least comprises the following advantages:

the adjustable supplementing and guiding device is used for patella stitching, and the angle between the needle handle and the sleeve can be adjusted according to needs in the stitching process due to the fact that the angle between the needle handle and the sleeve is adjustable, so that the angle between the needle body and the needle handle is adjusted, and the requirement of deep stitching with large angle can be met; simultaneously, the needle body is fixed on the dead lever, and the dead lever is seen at the sleeve and is rotated to can change the length of leading the needle, and then adapt to the demand of the different degree of depth. Thereby avoiding the problem that the needle point is inconvenient to insert and wear out and influences the seaming effect in the prior art.

Drawings

Fig. 1 is a schematic perspective view of an adjustable supplement device according to the present embodiment;

FIG. 2 is a partial schematic view of the connection block of the adjustable feeding device according to the present embodiment;

FIG. 3 is a partial schematic view of a locking assembly of the adjustable feeding device according to the present embodiment;

FIG. 4 is an exploded view of the sleeve, the fixing rod and the needle body of the adjustable supplementary firing device according to the present embodiment;

reference numerals: 10-adjustable supplementing and guiding device, 100-connecting frame, 110-needle handle, 111-first connecting plate, 112-second connecting plate, 120-sleeve, 130-connecting block, 131-support, 132-fixed shaft, 133-bulge, 134-first snap ring, 135-second snap ring, 136-first elastic piece, 200-leading needle, 210-fixed rod, 220-needle body, 222-threading hole, 300-threading claw, 400-clamping component, 410-supporting shaft, 420-pressing rod, 430-fixed pin and 440-second elastic piece.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 and 4, an adjustable augmentation instrument 10 is shown for use in patellar suturing. Specifically, the adjustable supplementary device 10 includes a connecting frame 100 and a needle 200.

Referring also to fig. 2, in particular, the connecting frame 100 includes a needle handle 110 and a sleeve 120. The end face of the needle handle 110 is provided with a first connecting plate 111 and a second connecting plate 112 along the axial direction, and the first connecting plate 111 and the second connecting plate 112 are oppositely arranged at intervals. The first connecting plate 111 is provided with a first through hole, and the second connecting plate 112 is provided with a second through hole. The end of the sleeve 120 is provided with a connection block 130, and the connection block 130 is located between the first connection plate 111 and the second connection plate 112. The connection block 130 includes a bracket 131, a fixing shaft 132, and an elastic member 136. The holder 131 is arranged at the end face of the sleeve 120 remote from the needle 200. The fixing shaft 132 is perpendicularly cross-coupled to the bracket 131. One end of the fixing shaft 132 is provided with a plurality of protrusions 133 along the circumference thereof, and the other end of the fixing shaft 132 is provided with a first snap ring 134 and a second snap ring 135. The first snap ring 134 is spaced apart from the second snap ring 135. A plurality of grooves are formed in the circumferential direction of the first through hole and communicated with the through hole. The plurality of grooves and the plurality of protrusions 133 are snap-fit into corresponding engagement. The second connecting block 130 is located between the first snap ring 134 and the second snap ring 135 and abuts against the end face of the first snap ring 134. A first elastic member 136 is disposed between the second connecting plate 112 and the second snap ring 135. One end of the first elastic element 136 abuts against the second connecting plate 112, and the first elastic element 136 is in a compressed state, so that the first snap ring 134 is tightened and pressed on the second connecting plate 112. The fixing shaft 132 is prevented from sliding in the first and second through holes. The other end of the spring abuts against the second snap ring 135. In the present embodiment, the first elastic member 136 is preferably a spring.

When the angle between the needle handle 110 and the sleeve 120 needs to be adjusted during use, the sleeve 120 is only required to be gripped and slid toward the axial direction of the fixed shaft 132, and at this time, the elastic member 136 is compressed and contracted. When the protrusion 133 on the end surface of the fixed shaft 132 completely drops off from the groove circumferentially arranged on the first through hole, the sleeve 120 is rotated to adjust the angle, when the required angle is reached, the sleeve 120 is loosened, the first elastic member 136 pushes the second snap ring 135 and drives the sleeve 120 to slide along the axial direction of the fixed shaft 132 under the action of the elastic member 136, and finally the protrusion 133 is clamped into the groove again, thereby completing the angle adjustment of the needle handle 110 and the sleeve 120.

The needle 200 includes a fixing rod 210 and a needle body 220. Specifically, the fixing rod 210 is inserted into the sleeve 120 and is connected by a screw. The fixing rod 210 may be rotated up and down within the sleeve 120. The fixing rod 210 is provided with a jack along the axial direction away from the end of the sleeve 120, and the needle body 220 is inserted into the jack. The end of the needle body 220 far away from the fixing rod 210 is provided with a needle point. The needle body 220 is provided with a threading hole 222. In order to facilitate the insertion and prevent the rotation of the needle body 220 in the insertion hole, the outer wall of the needle body 220 is provided with a rotation stopping step along the axial direction, and the inner wall of the fixing rod 210 is provided with a limiting groove along the axial direction. The limiting groove is communicated with the jack. When the needle body 220 is inserted into the socket, the rotation stopping step is inserted into the limit groove.

Please refer to fig. 3, in order to further fix the needle 220 and prevent the needle 220 from sliding out of the fixing rod 210, a position-locking assembly 400 is disposed on an outer sidewall of the fixing rod 210. The catching assembly 400 includes a support shaft 410, a pressing lever 420, a fixing pin 430, and a second elastic member 440. The support shaft 410 is fixed to the outer sidewall of the fixing lever 210. The pressing rod 420 is rotatably sleeved on the fixed shaft 132. The fixing pin 430 is located at one end of the pressing rod 420. The side wall of the fixing rod 210 is provided with a pin hole along the radial direction of the fixing rod 210, and the pin hole is communicated with the insertion hole. The guide pin 200 is provided with a fixing hole. The pin hole is coaxial with the fixing hole. The fixing pin 430 is inserted into the fixing hole after passing through the pin hole. The second elastic member 440 is located at the other end of the pressing rod 420, one end of the second elastic member 440 is fixed on the pressing rod 420, and the other end of the second elastic member is abutted against the outer sidewall of the fixing rod 210.

When the needle inserting device is used, in the process of inserting the needle body 220 into the inserting hole, the pressing rod 420 is pressed along the axial direction of the second elastic piece 440, the pressing rod 420 rotates around the supporting shaft 410 and drives the fixing pin 430 to move along the direction away from the fixing rod 210, after the fixing pin 430 falls off the pin hole, the needle body 220 is inserted in place, at the moment, the pin hole is aligned with the fixing hole in the needle body 220, the pressing rod 420 is loosened, under the elastic action of the second elastic piece 440, the pressing rod 420 recovers, and the fixing pin 430 is clamped into the pin hole and the fixing hole again. Thereby preventing the needle body 220 from slipping out of the fixing rod 210. When the length of the needle 200 needs to be changed, the fixing rod 210 is rotated only, so that the fixing rod 210 is rotated away from the sleeve 120, and the length of the whole needle 200 is changed accordingly.

Referring to fig. 1, in order to prevent the steel wire tension belt from moving during the sewing process, the adjustable repairing device 10 further includes a wire fixing claw 300. The thread fixing claw 300 is L-shaped, one end of the thread fixing claw 300 is fixed on the outer side wall of the needle handle 110, and the other end of the thread fixing claw 300 is abutted against the outer side wall of the needle handle 110. The thickness of the thread fixing claw 300 is less than 1 mm. When the needle handle is used, the thread fixing claw 300 is pulled in the direction far away from the needle handle 110, the thread fixing claw 300 rotates around the intersection point between the thread fixing claw 300 and the needle handle 110, meanwhile, a gap is formed between the end part of the thread fixing claw 300 and the outer side wall of the needle handle 110, and at the moment, a steel wire tension band can be clamped into the gap between the end part of the thread fixing claw 300 and the outer side wall of the needle handle 110. Then, the thread fixing claw 300 is released, and the end of the thread fixing claw 300 is pressed against the outer side wall of the needle handle 110 again, so that the steel wire tension band is fixed and prevented from moving around

The use method of the adjustable supplement device 10 specifically comprises the following steps:

before the sewing, the needle body 220 is inserted into the insertion hole of the fixing lever 210 by one hand. And the rotation stopping step card on the needle body 220 is inserted into the limit groove. In the inserting process, the other hand presses the pressing rod 420 along the axial direction of the second elastic piece 440, the pressing rod 420 rotates around the supporting shaft 410 and drives the fixing pin 430 to move along the direction away from the fixing rod 210, when the fixing pin 430 falls off the pin hole, the pin body 220 is inserted in place, and at the moment, the pin hole is aligned with the fixing hole in the pin body 220; then, the pressing rod 420 is released, and the pressing rod 420 is restored by the elastic force of the second elastic member 440, and the fixing pin 430 is re-inserted into the pin hole and the fixing hole. So that the needle body 220 is fixed therewith and the needle body 220 can be prevented from slipping out of the fixing rod 210. At the end, the wire tension band is threaded into the threading hole 222 and knotted to prevent the wire tension band from falling off.

When the patella is thicker, the length of the guide pin 200 needs to be changed, and only the fixing rod 210 needs to be rotated to enable the fixing rod 210 to rotate away from the sleeve 120, so that the length of the whole guide pin 200 is changed.

In use, when the angle between the needle handle 110 and the needle body 220 needs to be changed, the sleeve 120 is only required to be gripped and slid toward the axial direction of the rotating shaft, and at the same time, the elastic member 136 is compressed and contracted. When the protrusion 133 on the end surface of the fixed shaft 132 completely drops off from the groove arranged in the circumferential direction of the first through hole, the sleeve 120 is rotated to adjust the angle; when the required angle is reached, the sleeve 120 is loosened, and under the action of the elastic member 136, the first elastic member 136 pushes the second snap ring 135 and drives the sleeve 120 to slide along the axial direction of the rotating shaft, and finally the protrusion 133 is snapped into the groove again, thereby completing the angle adjustment of the needle handle 110 and the sleeve 120.

In the use process, the steel wire tension is clamped into the wire fixing claw 300, so that the steel wire tension is prevented from moving randomly.

The adjustable supplementary guiding device 10 is used for patella stitching, and because the angle between the needle handle 110 and the sleeve 120 is adjustable, the angle between the needle body 220 and the needle handle 110 can be adjusted according to the requirement in the stitching process, so that the requirement of deep stitching with large angle can be met; meanwhile, the needle body 220 is fixed on the fixing rod 210, and the fixing rod 210 can rotate on the sleeve 120, so that the length of the guide needle 200 can be adjusted, and requirements of different depths can be met; when the needle body 220 is needed to be replaced, when the needle body 220 is damaged or the needle body 220 with different models needs to be replaced, the old needle body 220 is only required to be taken out from the fixing rod 210, and the new needle body 220 is fixed again, so that the fixing cost is greatly saved, and the wire fixing claw 300 is used for fixing the steel wire tension belt to prevent the steel wire tension belt from moving randomly.

Finally, it should be noted that: while there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An adjustable prosthetic device for patellar suturing, comprising:

the connecting frame comprises a needle handle and a sleeve, a first connecting plate and a second connecting plate are axially arranged on the end face of the needle handle, the first connecting plate and the second connecting plate are oppositely arranged at intervals, a first through hole is formed in the first connecting plate, a second through hole is formed in the second connecting plate, a connecting block is arranged at the end part of the sleeve, and the connecting block is located between the first connecting plate and the second connecting plate and clamped with the first through hole and the second through hole on the two sides; and

the needle comprises a fixed rod and a needle body, the fixed rod is inserted into the sleeve, the fixed rod can slide up and down relative to the sleeve, an insertion hole is formed in the end, far away from the sleeve, of the fixed rod along the axial direction, the needle body is inserted into the insertion hole, a needle point is arranged at the end, far away from the fixed rod, of the needle body, and a threading hole is formed in the needle body;

the connecting block comprises a bracket, a fixed shaft and a first elastic piece, the bracket is arranged on the end surface of the sleeve far away from the guide pin, the fixed shaft is vertically crossed and connected with the bracket, one end of the fixed shaft is provided with a plurality of bulges along the circumferential direction, the other end of the fixed shaft is provided with a first snap ring and a second snap ring which are arranged at intervals, a plurality of grooves are arranged on the circumference of the first through hole and communicated with the through hole, the groove and the bulge are clamped and correspondingly matched, the second connecting plate is positioned between the first snap ring and the second snap ring and is propped against the end surface of the first snap ring, and a first elastic piece is arranged between the second connecting plate and the second clamping ring, one end of the first elastic piece is abutted against the second connecting plate, and the other end of the first elastic piece is abutted against the second clamping ring.

2. The adjustable supplementary device according to claim 1, wherein the fixing rod is connected with the sleeve by a screw thread, and the fixing rod moves up and down in the sleeve by the screw thread.

3. The adjustable supplementing and guiding device according to claim 1, further comprising a thread fixing claw, wherein the thread fixing claw is L-shaped, one end of the thread fixing claw is fixed on the outer side wall of the needle handle, the other end of the thread fixing claw abuts against the outer side wall of the needle handle, and the thickness of the thread fixing claw is smaller than 1 mm.

4. The adjustable supplementary device according to claim 1, further comprising a locking assembly, the clamping component is arranged on the outer side wall of the fixed rod and comprises a support shaft, a pressure rod, a fixed pin and a second elastic piece, the supporting shaft is fixed on the outer side wall of the fixed rod, the pressure lever is rotatably sleeved on the supporting shaft, the fixing pin is positioned at one end of the pressure lever, the side wall of the fixing lever is provided with a pin hole along the radial direction of the fixing lever, the pin hole is communicated with the jack, the guide pin is provided with a fixing hole, the pin hole is coaxial with the fixing hole buckle, the fixing pin passes through the pin hole and is clamped in the fixing hole, the second elastic piece is positioned at the other end of the pressure lever, one end of the second elastic piece is fixed on the pressing rod, and the other end of the second elastic piece is abutted to the outer side wall of the fixing rod.

5. The adjustable supplement and guide device as claimed in claim 1, wherein the outer wall of the needle body is provided with a rotation stopping step along the axial direction, the inner wall of the fixing rod is provided with a limiting groove along the axial direction, the limiting groove is communicated with the insertion hole, and the rotation stopping step is inserted into the limiting groove.