CN114305814A - A patch extractor - Google Patents

Abstract

The invention discloses a fetcher for a patch, which comprises a first rod piece; the middle part of the first rod piece is hinged with the middle part of the second rod piece; one end of the first connecting rod is hinged with the first rod piece; one end of the second connecting rod is hinged with the second rod piece, and the other end of the second connecting rod is hinged with the other end of the first connecting rod; and the hinged part of the first connecting rod and the second connecting rod is hinged with one end of the third rod, the hinged part of the first rod and the second rod is connected with the middle part of the third rod in a sliding manner, and the third rod comprises a stress block arranged at the other end of the third rod. According to the extractor disclosed by the invention, the knocking points are added, the effect that the knocking force is applied to the patch through the extractor is realized, the risk that the patch is possibly broken due to the fact that the knocking force is directly applied to the patch is avoided, the extracting block can also bear the knocking function while the clamping function is realized, the force applied to the patch in the knocking process is not deflected, and the risk that the patch falls off is avoided to a great extent.

Description

A patch extractor

technical field

The invention relates to the technical field of medical devices, in particular to a patch extractor.

Background technique

A fracture is a complete or partial break in the continuity of the bone structure. It is more common in children and the elderly, but also occurs in young and middle-aged people. Patients often have a single site fracture, and a few have multiple fractures. After timely and appropriate treatment, most patients can restore their original functions, and a small number of patients may have different degrees of sequelae. In some patients with fractures, the fracture is more serious, that is, the bone defect is more serious, and the original bone cannot be used to reconstruct the function of the leg, so it is necessary to add a patch to the defect site to stabilize the femur or tibia.

The patch usually includes a patch trial and a patch prosthesis. The patch trial is used by the doctor to select and fit the prosthesis model of the defect during the operation. Specifically, the patch extractor is used to remove the patch. The block test mold is placed in the defect site to check whether the model of the patch test mold is suitable. If it is suitable, the patch test mold can be taken out by using the patch extractor. A block prosthesis is implanted at the defect site.

Stable fixation is required during mold trial and prosthesis implantation, and a certain percussion force is required to assist the implantation during the process. The existing extractors on the market, as shown in Figures 1-2, are usually clamped by shrapnel and racks. The patch, this structure is only suitable for a simple holding function, and cannot be knocked or withstand a large extraction force, that is, the existing extractor is not designed with a tapping point. The recovery of the device will cause adverse effects, so a extractor with a tapping point is required;

In addition, if the patch is tapped directly, the patch will be skewed, and the existing extractor will also be skewed when removing or inserting the patch, resulting in the patch falling from time to time. The prosthesis or the trial model used in the surgery are all sterilized. Once the drop occurs, the operation needs to be stopped and the surgery can be performed again after the prosthesis or trial model is re-sterilized (usually takes 1 to 2 days). This process The open wound of the patient is extremely dangerous, so there is a need for an extractor that prevents the patch from falling off when tapped.

Based on the above, the present invention provides a patch extractor.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a patch extractor to solve the above-mentioned problems in the background art.

In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a patch extractor, comprising: a first rod; a second rod, the middle of the first rod is hinged with the middle of the second rod; the first rod Connecting rod, one end of the first connecting rod is hinged with the first rod; second connecting rod, one end of the second connecting rod is hinged with the second rod, and the other end of the second connecting rod is hinged with the other end of the first connecting rod Hinged; the third link, the hinge of the first link and the second link is hinged with one end of the third link, the hinge of the first link and the second link is slidably connected to the middle of the third link, The third rod includes a force-bearing block arranged at the other end of the third rod.

Preferably, the extractor further comprises: an indenter, one end of the indenter abuts against the hinge joint between the first rod and the second rod, and the indenter is slidably connected to the third rod; an elastic piece, one end of which abuts against the second rod Connected to the other end of the pressing head, the other end of the elastic piece abuts in the third rod.

Preferably, the first rod includes a first holding part, a first bending part, and a first clamping part; the second rod includes a second holding part, a second bending part, and a second clamping part; the first bending part The middle part of the folded part is hinged with the middle part of the second folded part, a first angle is formed between the first holding part and the second holding part, and a second angle is formed between the first clamping part and the second clamping part; The first holding portion, the first bending portion, and the first clamping portion are integrally formed, and the second holding portion, the second bending portion, and the second clamping portion are integrally formed.

Preferably, a side of the first clamping portion away from the second clamping portion is provided with a first clamping column, and a side of the second clamping portion away from the first clamping portion is provided with a second clamping column.

Preferably, a connecting rod space is formed between the first bending part and the second bending part, and the first connecting rod and the second connecting rod are located in the connecting rod space; a side of the first bending part close to the connecting rod space is provided with a connecting rod space. The connecting step, the side of the second bending part close to the connecting rod space is provided with an accommodating groove; the first connecting rod includes an upper connecting rod and a lower connecting rod that are fixedly connected to each other, and the upper connecting rod is located at the upper end of the connecting step, and the lower connecting rod is located at the upper end of the connecting step. The connecting rod is located at the lower end of the connecting step, and the upper connecting rod and the lower connecting rod are hinged with the connecting step; one end of the second connecting rod extends into the accommodating groove and is hinged with the side wall of the accommodating groove; the other end of the second connecting rod extends It enters between the upper link and the lower link, and is hinged with the upper link and the lower link.

Preferably, the first rod is provided with a first escape groove at the hinge of the first rod and the second rod, and the second rod is provided with a second escape groove at the hinge of the first rod and the second rod , the first avoidance groove corresponds to the second avoidance groove.

Preferably, the third rod member further comprises: an upper rod member, the upper rod member is located at the upper ends of the first rod member and the second rod member; a lower rod member, the lower rod member is located at the lower ends of the first rod member and the second rod member; The connecting section is located in the first opening angle, and the force-bearing block is located at one end of the connecting section away from the upper rod and the lower rod; the upper rod, the lower rod, the connecting section and the force block are integrally formed.

Preferably, the first rod is hinged with the second rod through a first pin, the middle of the upper rod is provided with a first waist-shaped hole, the middle of the lower rod is provided with a second waist-shaped hole, and the first column The pin extends into the first waist-shaped hole and the second waist-shaped hole.

Preferably, the pressure head includes: a round head column, one end of which is abutted on the hinge of the first rod and the second rod; a blocking ring, the blocking ring is sleeved on the round head, and the round head is connected to the stopper. The rings are connected by a second stud, the connecting section is provided with a third waist-shaped hole, and the second stud extends into the third waist-shaped hole.

Preferably, a column groove is provided in the connecting section, the elastic member is located in the column groove, one end of the elastic member abuts in the column groove, and the other end of the elastic member abuts on the blocking ring.

Compared with the prior art, the beneficial effects achieved by the present invention are:

1. A kind of patch block extractor disclosed by the present invention increases the tapping point by setting the third rod member, realizes that the tapping force is applied to the patch block by the extractor, and avoids directly applying the percussion force to the patch block to cause. There is a risk that the patch may be broken, so that the extraction block can also bear the knocking function while achieving the clamping function, and the connecting rod structure (the first connecting rod and the second connecting rod) cooperates with the sliding hammer to ensure that the knocking The force transmitted to the patch through the third rod is not deflected, which largely avoids the risk of the patch falling;

2. A patch extractor disclosed in the present invention is provided with an indenter so that the first rod and the second rod are in an open state, which can directly form a clamping force on the waist-shaped groove of the patch, and simultaneously. Under the action of the elastic piece, a pre-tightening force is formed on the clamping action, and there is no need to lock the clamping action of the patch. During use, there is no need to realize the clamping action first, and then realize the locking action. The clamping action is simple and efficient. And it can be operated with one hand, which greatly reduces the risk of the patch falling off.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the use schematic diagram of traditional patch extractor of the present invention;

Fig. 2 is the structural representation of traditional patch extractor of the present invention;

3 is a perspective view of a patch extractor in an embodiment of the present invention;

Fig. 4 is the perspective view of the third rod in the embodiment of the present invention;

Fig. 5 is the exploded view of a kind of patch extractor in the embodiment of the present invention;

6 is a partial perspective view of a patch extractor in an embodiment of the present invention;

In the picture:

The first rod 1, the first holding part 11, the first bending part 12, the connecting step 121, the first clamping part 13, the first clamping column 131, and the first escape groove 14;

The second rod 2, the second holding part 21, the second bending part 22, the accommodating groove 221, the second clamping part 23, the second clamping column 231, and the second avoiding groove 24;

The first connecting rod 3, the upper connecting rod 31, the lower connecting rod 32;

the second connecting rod 4;

The third rod 5, the force block 51, the U-shaped groove 511, the square column groove 512, the upper rod 52, the first waist-shaped hole 521, the lower rod 53, the second waist-shaped hole 531, the connecting section 54, the first waist-shaped hole 521 Three-waisted hole 541, column slot 542;

Indenter 6, round head column 61, retaining ring 62, second column pin 63;

elastic member 7;

the first pin 8;

the first angle a;

second angle b;

Connecting rod space c.

Detailed ways

The technical solutions in 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Embodiment: This embodiment provides an optimal solution for a patch extractor. First, as an extractor, it needs to have a clamping function, that is, the extractor needs to clamp the patch, and then an external force is applied to the extractor and the patch. The extractor takes out the patch. Based on this, the extractor includes a first rod 1 and a second rod 2. The middle part of the first rod 1 is hinged with the middle part 2 of the second rod. When the same end of 1 and the second rod 2 exert their mutual approaching force, the other ends of the first rod 1 and the second rod 2 also approach each other, so that the clamping or loosening action of the patch can be realized.

Further, in order to solve the defect that the traditional extractor for patch can only achieve a simple clamping function and cannot achieve a knocking function, the extractor adds a knocking point to apply a knocking force to the patch through the extractor, avoiding There is a risk that the patch may be broken by directly applying a knocking force to the patch. Specifically, the extractor includes a third rod 5, and the third rod 5 is connected with the first rod 1 and the second rod 2, and The third rod member 5 includes a force-receiving block 51 arranged at the other end of the force-receiving block 51. The force-receiving block 51 is specifically a sliding hammer connecting block. When a knocking force needs to be applied to the patch, the sliding hammer is connected to the force receiving block 51. The percussion force is applied to the force receiving block 51 by the force of the sliding hammer.

Further, the force receiving block 51 is provided with a U-shaped groove 511 and a square column groove 512, wherein the U-shaped groove 511 and the square column groove 512 both extend to the side of the force receiving block 51, which is convenient for the connecting part of the sliding hammer to extend into the U-shaped groove 511. The groove 511 and the square column groove 512, and the connection between the U-shaped groove 511 and the square column groove 512 forms a step surface. The initial connection prevents the circumferential rotation between the force block 51 and the sliding hammer, and then the connecting part of the sliding hammer continues to extend into the U-shaped groove 511. Through the hook and the step surface, the force block 51 and the sliding hammer can be realized The further connection between them prevents the axial movement between the force receiving block 51 and the sliding hammer, and thus the fixed connection between the force receiving block 51 and the sliding hammer is realized.

Further, the implantation angle of the patch is strictly designed, the implantation angle cannot be skewed, and the patch should be prevented from falling during the knocking process, so the striking direction of the patch should be guaranteed and taken out. The central axis of the extractor remains the same. Based on this, the third rod 5 needs to be located in the center of the first rod 1 and the second rod 2. Therefore, the extractor also includes the first link 3 and the second link 4. One end of a connecting rod 3 is hinged with the first rod 1 through a pin, one end of the second connecting rod 4 is hinged with the second rod 2 through a pin, and the other end of the second connecting rod 4 is hinged with the first connecting rod 3 The other end is hinged through the pin, the hinge of the first link 3 and the second link 4 is hinged with one end of the third link 5, the hinge of the first link 1 and the second link 2 is hinged with the third link Sliding connection in the middle of piece 5;

In this way, when the first link 1 and the second link 2 are opened or closed, the first link 3 and the second link 4 are driven to open or close, and then the third link 5 is driven along the first link. The centerline axis of the member 1 and the second rod member 2 is translated, which can always keep the third rod member 5 in the center position, or when the first rod member 1 and the second rod member 2 are in a clamped or relaxed state, the third rod member 5 can also be maintained. The rod member 5 is located in the center position, which ensures that the force of the patch is not deflected, so that the take-out block can also bear the knocking function while realizing the clamping function, and ensures that the force on the patch is not deflected during knocking. , largely avoiding the risk of the patch falling.

Further, after the extractor clamps the patch, it needs to lock the clamping action, that is, maintain the clamping action. The traditional extractor realizes the locking function through the combination of elastic pieces and teeth. It is cumbersome to use and requires both hands to operate, and the patch may also be dropped during the locking process. In order to avoid this defect, the extractor also includes a pressure head 6 and an elastic member 7, wherein the pressure One end of the head 6 is in contact with the hinge of the first rod 1 and the second rod 2 , and the indenter 6 is slidably connected with the third rod 5 , and one end of the elastic member 7 is in contact with the other end of the indenter 6 , the other end of the elastic member 7 is in contact with the third rod member 5, and the elastic member 7 is preferably a spring;

The elastic member 7 in this structure is compressed under the action of the third rod member 5 to generate elastic force, and the elastic force acts on the indenter 6, so that the indenter 6 generates pressure on the hinge joint between the first rod member 1 and the second rod member 2 , so that the first rod 1 and the second rod 2 are in an open state when they are not subjected to external force, and the clamping groove of the patch is a waist-shaped groove opened in the middle, so the extractor is in the clamping When the block is patched, the first rod 1 and the second rod 2 are in an open state, which can directly form a clamping force on the waist-shaped groove of the patch, and at the same time, the clamping effect is formed under the action of the elastic member 7. Pre-tightening force, there is no need to lock the clamping of the patch. When the clamping force needs to be removed from the patch, pressure is applied to the first rod 1 and the second rod 2 to make the first rod 1 and the second rod 2. The two rod members 2 are closed, the elastic member 7 is further compressed, and the pressing action of the indenter 6 on the first rod member 1 and the second rod member 2 disappears, so that the extractor and the patch can be separated. The clamping action of the patch is simple and efficient, no locking action is required after clamping, and it can be operated with one hand, reducing the risk of the patch falling off.

Further, the first rod 1 includes a first holding part 11 , a first bending part 12 , and a first clamping part 13 , and the second rod 2 includes a second holding part 21 , a second bending part 22 , a second The clamping part 23, the middle part of the first bending part 12 and the middle part of the second bending part 22 are hingedly connected by a pin, a first angle a is formed between the first holding part 11 and the second holding part 21, and the first clamping part A second opening angle b is formed between the holding part 13 and the second clamping part 23 , the first holding part 11 , the first bending part 12 and the first clamping part 13 are integrally formed, and the second holding part 21 , the second bending part 22 and the second clamping part 23 are integrally formed, and the first opening angle a and the second opening angle b indicate that the first rod 1 and the second rod 2 are in a free state when they are in a free state. In the open state, external force is applied to the first gripping portion 11 and the second gripping portion 21, so that the first gripping portion 13 and the second gripping portion 23 can be closed;

Further, in order to ensure that the clamping force of the first clamping part 13 and the second clamping part 23 to the patch is stable, a first clamping part 13 is provided on the side of the first clamping part 13 away from the second clamping part 23 . The clamping column 131 is provided with a second clamping column 231 on the side of the second clamping portion 23 away from the first clamping portion 13 . Correspondingly, the patch is connected to the first clamping column 131 and the second clamping column 231 A groove is provided at the corresponding position, and when the patch is clamped, a clamping column 131 and a second clamping column 231 are inserted into the groove, which can form a very stable clamping for the patch.

Further, in order to keep the structure of the extractor compact, a connecting rod space c is formed between the first bending part 12 and the second bending part 22, and the first connecting rod 3 and the second connecting rod 4 are placed in the connecting rod space c. At the same time, a connecting step 121 is provided on the side of the first bending portion 12 close to the connecting rod space c, a receiving groove 221 is provided on the side of the second bending portion 22 close to the connecting rod space c, and the first connecting rod 3 includes The upper connecting rod 31 and the lower connecting rod 32 are fixedly connected to each other through the pin, the upper connecting rod 31 is located at the upper end of the connecting step 121, the lower connecting rod 32 is located at the lower end of the connecting step 121, the upper connecting rod 31, the lower connecting rod 32 Both are hinged with the connecting step 121 through a pin, one end of the second connecting rod 4 extends into the accommodating groove 221, and is hinged with the side wall of the accommodating groove 221 through a stud, and the other end of the second connecting rod 4 extends into the upper connecting rod 31 and the lower link 32, and are hinged with the upper link 31 and the lower link 32. The first link 3 and the second link 4 of this structure are located between the first link 1 and the second link 2. time, so that the extractor has a compact structure and occupies a small space.

Further, in order to further keep the structure of the extractor compact, the first rod 1 is provided with a first avoidance groove 14 at the hinge of the first rod 1 and the second rod 2, and the second rod 2 is located in the first rod 2. A second avoidance groove 24 is provided at the hinge between 1 and the second rod member 2, the first avoidance groove 14 corresponds to the second avoidance groove 24, and the first rod member 1 and the second rod member 2 are located between the first avoidance groove 14 and the second avoidance groove 24. The two avoidance grooves 24 are hinged by pins, so that the stacking of the first rod 1 and the second rod 2 takes up less space;

Further, in order to further keep the structure of the extractor compact, the third rod 5 also includes an upper rod 52 and a lower rod 53, wherein the upper rod 52 is located at the upper ends of the first rod 1 and the second rod 2, and the lower rod The rod member 53 is located at the lower end of the first rod member 1 and the second rod member 2. The upper rod member 52 and the lower rod member 53 are hinged to the first link 3 and the second link 4 through a pin, and also includes a connecting section 54. The connecting section 54 is located in the first opening angle a, and the force-bearing block 51 is located at the end of the connecting section 54 away from the upper rod 52 and the lower rod 53, wherein the upper rod 52, the lower rod 53, the connecting section 54, the force block 51 The four are integrally formed.

Further, the first rod 1 and the second rod 2 are hinged through the first pin 8, the middle of the upper rod 52 is provided with a first waist-shaped hole 521, and the middle of the lower rod 53 is provided with a second waist Shaped hole 531, the first pin 8 extends into the first waist-shaped hole 521 and the second waist-shaped hole 531 to complete the sliding between the hinge joint of the first rod 1 and the second rod 2 and the middle of the third rod 5 connect;

Further, the indenter 6 includes a round head column 61 and a blocking ring 62, wherein one end of the round head column 61 abuts against the hinge joint between the first rod 1 and the second rod 2, correspondingly, the first rod 1 and The part where the second rod 2 is in contact with the round head column 61 is an arc-shaped convex surface, so that the pressure of the indenter 6 on the first rod 1 and the second rod 2 can smoothly press the first rod 1 and the second rod 2 Open a certain angle, the blocking ring 62 is sleeved on the round head column 61, the round head column 61 and the blocking ring 62 are connected by a second column pin 63, the connecting section 54 is provided with a third waist-shaped hole 541, the second The pin 63 extends into the third waist-shaped hole 541, so that the indenter 6 can translate along the third rod 5, that is, when the first rod 1 and the second rod 2 are closed, the round head 61 moves along the third rod. The rod member 5 retreats, and the pressing effect on the first rod member 1 and the second rod member 2 disappears.

Further, the connecting section 54 is provided with a column groove 542, the elastic member 7 is located in the column groove 542, one end of the elastic member 7 abuts in the column groove 542, and the other end of the elastic member 7 abuts on the retaining ring 62 to prevent The elastic member 7 is disengaged.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the The technical solutions described in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a patch with extractor, is characterized in that, comprises: the first rod; a second rod, the middle of the first rod is hinged with the middle of the second rod; a first connecting rod, one end of the first connecting rod is hinged with the first rod; a second link, one end of the second link is hinged with the second rod, and the other end of the second link is hinged with the other end of the first link; A third rod, the hinge of the first link and the second link is hinged with one end of the third rod, and the hinge of the first rod and the second rod is connected to the The middle part of the third rod member is slidably connected, and the third rod member includes a force receiving block arranged at the other end of the third rod member. 2. The extractor for a patch according to claim 1, wherein the extractor further comprises: an indenter, one end of the indenter abuts on the hinge joint of the first rod and the second rod, and the indenter is slidably connected to the third rod; An elastic piece, one end of the elastic piece abuts against the other end of the pressure head, and the other end of the elastic piece abuts in the third rod. 3. a kind of patch use extractor according to claim 2 is characterized in that: The first rod includes a first holding part, a first bending part, and a first clamping part; The second rod includes a second holding portion, a second bending portion, and a second clamping portion; The middle part of the first bending part is hinged with the middle part of the second bending part, a first angle is formed between the first holding part and the second holding part, and the first clamping part is connected to the A second angle is formed between the second clamping parts; The first holding portion, the first bending portion, and the first clamping portion are integrally formed, and the second holding portion, the second bending portion, and the second clamping portion are integrally formed. The three parts are integrally formed. 4 . The extractor for a patch according to claim 3 , wherein a side of the first clamping portion away from the second clamping portion is provided with a first clamping column, and the first clamping portion is 4. 5 . A second clamping column is provided on one side of the two clamping parts away from the first clamping part. 5. a kind of patch use extractor according to claim 3 is characterized in that: A connecting rod space is formed between the first bending portion and the second bending portion, and the first connecting rod and the second connecting rod are located in the connecting rod space; A connecting step is provided on the side of the first bending portion close to the connecting rod space, and a receiving groove is provided on the side of the second bending portion close to the connecting rod space; The first connecting rod includes an upper connecting rod and a lower connecting rod that are fixedly connected to each other, the upper connecting rod is located at the upper end of the connecting step, the lower connecting rod is located at the lower end of the connecting step, and the Both the upper connecting rod and the lower connecting rod are hinged with the connecting step; One end of the second link extends into the accommodating groove and is hinged with the side wall of the accommodating groove; The other end of the second link extends between the upper link and the lower link, and is hinged with the upper link and the lower link. The extractor for patch according to any one of claims 1 to 5, wherein the first rod is provided with a joint at the hinge between the first rod and the second rod. A first avoidance groove, the second rod member is provided with a second avoidance groove at the hinge joint of the first rod member and the second rod member, and the first avoidance groove corresponds to the second avoidance groove. 7. The extractor for patch according to any one of claims 3 to 5, wherein the third rod further comprises: an upper rod, the upper rod is located at the upper ends of the first rod and the second rod; a lower rod, the lower rod is located at the lower ends of the first rod and the second rod; a connecting section, the connecting section is located in the first opening angle, and the force-bearing block is located at one end of the connecting section away from the upper rod and the lower rod; The upper rod member, the lower rod member, the connecting section and the force receiving block are integrally formed. 8 . The extractor for patch according to claim 7 , wherein the first rod is hinged with the second rod through a first pin, and the upper rod is hinged. 9 . The middle part of the lower rod is provided with a first waist-shaped hole, the middle part of the lower rod is provided with a second waist-shaped hole, and the first pin extends into the first waist-shaped hole and the second waist-shaped hole. 9. The extractor for a patch according to claim 7, wherein the indenter comprises: a round head column, one end of the round head column abuts on the hinge joint of the first rod member and the second rod member; A blocking ring, the blocking ring is sleeved on the round head column, the round head column and the blocking ring are connected by a second pin, and the connecting section is provided with a third waist-shaped hole, so The second pin extends into the third waist-shaped hole. 10 . The extractor for patch according to claim 9 , wherein a column groove is provided in the connecting section, the elastic member is located in the column groove, and one end of the elastic member is located in the column groove. 11 . abutting in the column groove, the other end of the elastic piece abuts on the blocking ring.

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