Snare

Abstract

The utility model provides a snare, and relates to the technical field of medical instruments, the snare comprises a supporting rod, the outer surface of the supporting rod is slidably connected with an operation bracelet, the operation bracelet allows the middle finger and the ring finger of an operator to penetrate through, the operation bracelet is in threaded connection with a fixing bolt, and one end of the fixing bolt penetrates through the operation bracelet and is in contact with the supporting rod; a plurality of shifting pieces are fixedly connected to the outer surface of the fixing bolt and used for being shifted by the index finger of an operator. Through the arrangement of the operating bracelet, the fixing bolt and the shifting piece, the operating bracelet is used for operation of the middle finger and the ring finger of an operator, the shifting piece is shifted by the index finger to achieve unlocking and locking, accidental movement of the operating bracelet is effectively limited, the stability of the position of the ferrule is ensured, and the accuracy and safety of operation are improved; according to the design, an operator is allowed to use the middle finger and the ring finger to operate the operation bracelet, meanwhile, the index finger is used for controlling locking and unlocking, and the possibility of single-hand operation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, specifically, relate to a snare. BACKGROUND

[0002] In medical, scientific research experiment, emergency rescue and many fields, snare as a kind of precision tool, plays a vital role, it is usually designed for in complex environment, such as human body, experimental sample or narrow space, carries out accurate tissue sampling, foreign body catching or cutting operation, the basic structure of traditional snare includes a main body structure, the main body is fixed with the line or wire structure that can form snare, and a slide handle that can slide along the main body, the pushing or pulling action of slide handle directly controls the opening and closing of snare, to realize the catching or cutting of target object;

[0003] However, in practical application, the design of traditional snare exposes some significant limitations: slide handle lacks reliable limiting mechanism, in the operation process, especially in the scene that needs high-precision control, accidental movement of slide handle can cause the loosening of snare position, affect operation. Therefore we make improvement, propose a snare. SUMMARY

[0004] The utility model aims at: in view of the existing slide handle lacks reliable limiting mechanism, in the operation process, especially in the scene that needs high-precision control, accidental movement of slide handle can cause the loosening of snare position, affect operation problem.

[0005] In order to realize the above-mentioned invention purpose, the utility model provides a snare to improve the above-mentioned problem.

[0006] The application is as follows:

[0007] A snare, including support rod, the outer surface of support rod is slidably connected with operating bracelet, operating bracelet is for the middle finger and ring finger of operator to pass through, operating bracelet is screw-threaded with fixed bolt, one end of fixed bolt passes through operating bracelet and is in contact with support rod, the outer surface of fixed bolt is fixedly connected with a plurality of paddles, and paddle is used for the index finger of operator to move.

[0008] As the preferred technical scheme of the application, the operating bracelet includes a bracelet main body, the bracelet main body is fixedly connected with a connecting rod, and the outer surface of the support rod passes through the bracelet main body and the connecting rod.

[0009] As the preferred technical scheme of the application, the fixed bolt is screw-threaded on the connecting rod, and one end of the fixed bolt passes through the connecting rod and is in contact with the support rod.

[0010] As the preferred technical scheme of the present application, one end of the supporting rod is fixedly connected with a thumb ring, and the thumb ring is used for the thumb of the operator to pass through.

[0011] As the preferred technical scheme of the present application, the supporting rod is provided with a supporting part at the end away from the thumb ring.

[0012] As the preferred technical scheme of the present application, the supporting part comprises a connecting seat fixedly connected at the end of the supporting rod away from the thumb ring.

[0013] As the preferred technical scheme of the present application, the supporting part further comprises an outer sleeve fixedly connected with the side of the connecting seat away from the thumb ring.

[0014] As the preferred technical scheme of the present application, the outer sleeve is provided with a noose part between the outer sleeve and the bracelet main body.

[0015] As the preferred technical scheme of the present application, the noose part comprises a pull rope, one end of the pull rope is fixedly connected with a thimble main body, and the thimble main body is pulled out from the end of the outer sleeve away from the connecting seat.

[0016] As the preferred technical scheme of the present application, the end of the pull rope away from the thimble main body passes through the connecting seat and is fixedly connected with the bracelet main body.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] In the scheme of the present application:

[0019] In order to solve the problem that the slide handle lacks a reliable limiting mechanism in the prior art, and in the operation process, especially in the scene requiring high-precision control, accidental movement of the slide handle may cause loosening of the thimble position, affecting the operation, the present application sets the operation bracelet, the fixing bolt and the push piece, the operation bracelet is operated by the middle finger and the ring finger of the operator, the push piece is unlocked and locked by the index finger, the accidental movement of the operation bracelet is effectively limited, the stability of the thimble position is ensured, and the operation accuracy and safety are improved; the design allows the operator to operate the operation bracelet with the middle finger and the ring finger, and controls the locking and unlocking with the index finger, so that single-handed operation is possible, which not only simplifies the operation process, but also makes the operation more flexible and efficient in the case of requiring quick response or limited space. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure schematic view of the snare provided by the present application is shown in the figure;

[0021] Figure 2 The structure schematic view of the snare provided by the present application is shown in the figure;

[0022] Figure 3 The rear view structure schematic diagram of the snare provided in the present application is shown in the figure;

[0023] Figure 4 The structure schematic diagram of the pull rope of the snare provided in the present application is shown in the figure.

[0024] The figure shows:

[0025] 1, support rod; 101, connecting seat; 102, outer sleeve; 103, sleeve body; 104, pull rope;

[0026] 2, bracelet body; 201, connecting rod;

[0027] 3, thumb ring;

[0028] 4, fixing bolt; 401, push piece. DETAILED DESCRIPTION

[0029] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0030] As described in the background, the slide handle lacks a reliable limiting mechanism, and during operation, especially in scenarios requiring highly precise control, accidental movement of the slide handle can cause loosening of the sleeve position, affecting operation.

[0031] In order to solve this technical problem, the present application provides a snare.

[0032] Specifically, please refer to Figures 1-4 , the snare specifically comprises:

[0033] The support rod 1 is slidably connected with an operating bracelet on the outer surface thereof, the operating bracelet is for the middle finger and the ring finger of the operator to pass through, the operating bracelet is threadedly connected with a fixing bolt 4, one end of the fixing bolt 4 passes through the operating bracelet and is in contact with the support rod 1, the outer surface of the fixing bolt 4 is fixedly connected with a plurality of push pieces 401, and the push pieces 401 are used for the index finger of the operator to push.

[0034] The snare provided by the utility model, the operating bracelet is used for the operation of the middle finger and the ring finger of the operator, and the unlocking and locking are realized by the index finger moving the push piece 401, the accidental movement of the operating bracelet is effectively limited, the stability of the snare position is ensured, and the operation accuracy and safety are improved; the operator can operate the operating bracelet by using the middle finger and the ring finger, and the index finger is used for controlling the locking and unlocking, the one-handed operation is realized, the operation process is simplified, and the operation is more flexible and efficient in the case of quick response or limited space.

[0035] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings.

[0036] It should be noted that the embodiments and the features and technical solutions in the embodiments in the utility model can be combined with each other without conflict.

[0037] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0038] Embodiment 1, please refer to Figures 1-4 A snare, comprising a support rod 1, the outer surface of the support rod 1 is slidably connected with an operating bracelet, the operating bracelet is used for the middle finger and the ring finger of the operator to pass through, the operating bracelet is threadedly connected with a fixing bolt 4, one end of the fixing bolt 4 passes through the operating bracelet and is in contact with the support rod 1, the outer surface of the fixing bolt 4 is fixedly connected with a plurality of push pieces 401, and the push pieces 401 are used for the index finger of the operator to move; the operating bracelet is used for the middle finger and the ring finger of the operator to operate, and the unlocking and locking are realized by the index finger moving the push piece 401, the accidental movement of the operating bracelet is effectively limited, the stability of the snare position is ensured, and the operation accuracy and safety are improved; the operator can operate the operating bracelet by using the middle finger and the ring finger, and the index finger is used for controlling the locking and unlocking, the one-handed operation is realized, the operation process is simplified, and the operation is more flexible and efficient in the case of quick response or limited space.

[0039] Further, as Figures 1-3 The operating bracelet comprises a bracelet main body 2, the bracelet main body 2 is fixedly connected with a connecting rod 201, the outer surface of the support rod 1 passes through the bracelet main body 2 and the connecting rod 201, and the bracelet main body 2 is used for the middle finger and the ring finger of the operator to pass through, so that the middle finger and the ring finger of the operator can push and pull the bracelet main body 2.

[0040] Further, as shown in Figures 1-3 The fixed bolt 4 is screwed on the connecting rod 201, one end of the fixed bolt 4 penetrates the connecting rod 201 and contacts the supporting rod 1, and the connecting rod 201 can be limited when the fixed bolt 4 is tightened, thereby limiting the bracelet body 2, and the bracelet body 2 is prevented from sliding randomly through the limiting effect of the fixed bolt 4, thereby improving the accuracy and success rate of operation and reducing the risk and failure that may be caused by unstable operation.

[0041] Further, as shown in Figures 1-3 One end of the supporting rod 1 is fixedly connected with the thumb ring 3, the thumb ring 3 is used for the thumb of the operator to pass through, and a suitable operation position is provided for the thumb, thereby effectively improving the coordination and overall stability of operation.

[0042] In embodiment 2, the snare provided in embodiment 1 is further optimized, and specifically, the supporting rod 1 is provided with a supporting portion at an end away from the thumb ring 3.

[0043] Further, as shown in Figures 1-3 The supporting portion includes a connecting seat 101 fixedly connected to one end of the supporting rod 1 away from the thumb ring 3.

[0044] Further, as shown in Figure 4 The supporting portion further includes an outer sleeve 102 fixedly connected to one side of the connecting seat 101 away from the thumb ring 3, and the connecting seat 101 can support the outer sleeve 102.

[0045] In embodiment 3, the snare provided in embodiment 1 or 2 is further optimized, and specifically, a snaring portion is arranged between the outer sleeve 102 and the bracelet body 2, and the outer sleeve 102 cooperates with the connecting seat 101 and the supporting rod 1 to support the snaring portion.

[0046] Further, as shown in Figures 1-3 The snaring portion includes a pull rope 104 penetratingly connected to the inner wall of the outer sleeve 102, one end of the pull rope 104 is fixedly connected with a loop body 103, the loop body 103 penetrates out of one end of the outer sleeve 102 away from the connecting seat 101, and the pull rope 104 can drive the loop body 103 to move into the outer sleeve 102 when being pulled, thereby causing the loop body 103 to contract.

[0047] Further, as shown in Figure 4 One end of the pull rope 104 away from the loop body 103 penetrates the connecting seat 101 and is fixedly connected with the bracelet body 2, so that the bracelet body 2 can drive the pull rope 104 to move when moving.

[0048] The use process of the snare provided by the utility model is as follows:

[0049] The middle finger and the ring finger of the operator are inserted into the ring main body 2, and the thumb is inserted into the thumb ring 3, and the index finger is corresponding to the push piece 401 to push the push piece 401, when the ring main body 2 is pushed to the thumb ring 3, the ring main body 2 pulls the pull rope 104 to make the sleeve body 103 move to the outer sleeve 102, so that the sleeve body 103 is contracted to cover the target tissue, at this time, the index finger pushes the push piece 401 to make the fixed bolt 4 rotate and tighten, the position of the ring main body 2 is fixed through the fixed bolt 4, the index finger reversely pushes the push piece 401 to make the fixed bolt 4 rotate and loosen, and the ring main body 2 is pushed to the direction away from the thumb ring 3, so that the sleeve body 103 is away from the outer sleeve 102, and the target tissue is loosened.

[0050] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection or communication with each other; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication between two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] Obviously, the above described embodiments are only part of the embodiments of the present application, not all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some technical features. Any equivalent structure made by using the contents of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A snare, characterized in that The utility model provides an operating hand ring, including support rod (1), the outer surface of support rod (1) is slidably connected with operating hand ring, operating hand ring is used for the middle finger and ring finger of operator to pass through, operating hand ring is screw connected with fixed bolt (4), one end of fixed bolt (4) passes through operating hand ring and is in contact with support rod (1), and the outer surface of fixed bolt (4) is fixedly connected with a plurality of plectrums (401), and plectrum (401) is used for the index finger of operator to move.

2. A snare according to claim 1, wherein, The operating hand ring includes a hand ring body (2), and the hand ring body (2) is fixedly connected with a connecting rod (201); the outer surface of the support rod (1) passes through the hand ring body (2) and the connecting rod (201).

3. A snare according to claim 2, wherein, The fixed bolt (4) is screw connected on the connecting rod (201), and one end of the fixed bolt (4) passes through the connecting rod (201) and is in contact with the support rod (1).

4. A snare according to claim 3, wherein, One end of the support rod (1) is fixedly connected with a thumb ring (3), and the thumb ring (3) is used for the thumb of the operator to pass through.

5. A snare according to claim 4, wherein, The support rod (1) is provided with a support portion at an end away from the thumb ring (3).

6. A snare according to claim 5, wherein, The support portion includes a connecting seat (101) fixedly connected at an end of the support rod (1) away from the thumb ring (3).

7. A snare according to claim 6, wherein, The support portion further includes an outer sleeve (102) fixedly connected with one side of the connecting seat (101) away from the thumb ring (3).

8. A snare according to claim 7, wherein, The outer sleeve (102) and the hand ring body (2) are provided with a noose portion therebetween.

9. A snare according to claim 8, wherein, The noose portion includes a pull rope (104) penetratingly connected with an inner wall of the outer sleeve (102), one end of the pull rope (104) is fixedly connected with a thimble body (103), and the thimble body (103) is penetrated out from one end of the outer sleeve (102) away from the connecting seat (101).

10. A snare according to claim 9, wherein, One end of the pull rope (104) away from the thimble body (103) passes through the connecting seat (101) and is fixedly connected with the hand ring body (2).

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