CN215227930U - Electromagnetic navigation fixable biopsy forceps - Google Patents

Abstract

The utility model belongs to the technical field of medical equipment, in particular to an electromagnetic navigation fixable biopsy forceps, which comprises a handle part, a tube body, a bracket, a forceps head and a tracking and positioning catheter tip probe, wherein the handle part comprises a supporting ring, a push handle, a slide bar, a lower clamping piece, a connecting shaft, a compression spring, an outer handle body, an upper clamping piece, a slide block, a slide groove, a slide ring, a connecting ring, a first pull wire and a second pull wire, the bracket comprises a bracket body, a lower limiting column and an upper limiting column, the outer handle body and the bracket body are respectively connected with two ends of the tube body, the tracking and positioning catheter tip probe is arranged in the bracket body between the lower limiting column and the upper limiting column, the forceps head is rotatably arranged at the top end of the bracket body, the forceps head comprises a forceps tooth I, a forceps tooth II, a fixed shaft and a reed, the lower clamping piece can carry out stable limiting on the upper clamping piece under the elastic support of the compression spring, thereby conveniently completing the fixation of the forceps head, the forceps head which can be used for positioning the patient to probe into the body by tracking and positioning catheter tip probe, effectively improve the accuracy of sample, reduce the degree of difficulty of sample.

Description

Electromagnetic navigation fixable biopsy forceps

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to biopsy forceps can be fixed in electromagnetic navigation.

Background

Biopsy is a method of obtaining a small piece of diseased tissue by surgical techniques and sending the tissue to a pathology department for examination, thereby obtaining a preoperative diagnosis. The existing biopsy forceps are mainly used for collecting biopsy samples, and are mainly disposable and reusable, the biopsy forceps need to be kept by medical workers to press the handle part to fix the clamping force of the forceps head all the time when sampling is completed and a patient is moved out of the biopsy forceps, the forceps head is easy to loosen due to operation reasons in the operation process, and then a sample body falls off. The existing biopsy forceps fix the angle of the forceps head through a thread structure, but the thread structure needs to rotate a handle part, so that the biopsy forceps are very inconvenient to use in practice.

The flexible biopsy forceps widely used at present need to be inserted into the body of a patient, and can only be estimated and positioned by visual observation of an endoscopist, so that the positioning is inaccurate, and the nature of deep lesions is difficult to diagnose.

Compared with other methods, the electromagnetic navigation technology can guide an operator to easily pass through the lung parenchyma, so that the examination range of the lung is expanded to the whole lung, and the method integrates multiple functions of diagnosis, positioning, treatment and the like, and has the advantages of real-time accuracy, no radiation, whole lung arrival and the like, for example, a bronchoscope electromagnetic navigation system provided by an authorization notice number CN 202437059U does not provide a technology for combining the electromagnetic navigation technology with biopsy forceps at present.

SUMMERY OF THE UTILITY MODEL

The existing biopsy forceps fix the angle of the forceps head through a thread structure, but the thread structure needs to rotate a handle part, so that the biopsy forceps are very inconvenient to use in practice, and an electromagnetic navigation technology can be used for accurately positioning in a patient body, but the technology combining the electromagnetic navigation technology and the biopsy forceps is not developed at present. The utility model provides an electromagnetism navigation can fix biopsy forceps, lower joint spare can carry out stable spacing to last joint spare under compression spring's elastic support to convenient completion binding clip is fixed, and the accessible is trailed the sharp-end probe of location pipe and is fixed a position the internal binding clip of patient, effectively improves the rate of accuracy of sample, reduces the degree of difficulty of taking a sample.

The utility model provides a following technical scheme: the electromagnetic navigation fixable biopsy forceps comprise a handle part, a tube body, a support, a forceps head and a probe at the tip end of a tracking and positioning catheter, wherein the handle part comprises a supporting ring, a push handle, a sliding rod, a lower clamping piece, a connecting shaft, a compression spring, an outer handle body, an upper clamping piece, a sliding block, a sliding groove, a sliding ring, a connecting ring, a first pull wire and a second pull wire, a through groove for slidably mounting the sliding rod is formed in the supporting ring, the push handle is fixedly connected to one end of the sliding rod, the other end of the sliding rod is rotatably connected with one end of the lower clamping piece, the other end of the lower clamping piece is matched, clamped and fixedly connected with the upper clamping piece arranged at one end of the sliding block, and is in pin joint connection with one end of the compression spring, the sliding block is slidably arranged at the inner side of the sliding groove formed in the outer handle body and is fixedly connected with the inner side surface of the sliding ring, the other end of the sliding block is fixedly connected with the connecting ring, and is fixedly connected with one end of the first pull wire and the second pull wire, the utility model discloses a clamp for the medical treatment of a patient, including outer handle body, support, spacing post, last spacing post, the inside fixed mounting of support body has the location pipe point of trail probe, the top of support body is rotated and is installed the binding clip, the binding clip includes jaw tooth one, jaw tooth two, fixed axle, reed down, the through-hole of connecting the fixed axle of fixed mounting on the support body top is offered in the middle-end of jaw tooth one and jaw tooth two, the lower extreme fixed mounting of the side in opposite directions of jaw tooth one, jaw tooth two has the reed.

The spring plate is of an elastic arc-shaped plate structure; the spring plate plays a role of elastic support, so that the first clamp tooth and the second clamp tooth are quickly opened after the pulling force of the second pull wire and the first pull wire is lost.

The upper limiting column and the lower limiting column are two in number and are of cylindrical structures, the bottom side of the upper limiting column is tightly attached to the top surface of the tip probe of the tracking and positioning catheter, the top side of the lower limiting column is tightly attached to the bottom surface of the tip probe of the tracking and positioning catheter, the frame body is of a circular tube type structure, the upper end of the frame body is provided with a through groove for rotatably mounting a first clamp tooth and a second clamp tooth, and the second pull wire and the first pull wire are connected with the lower limiting column and the upper limiting column in a sliding mode; the lower limiting column and the upper limiting column can limit the probe at the tip of the tracking and positioning catheter, the positioning accuracy is guaranteed, and the upper limiting column can also play a role in supporting the pull wire II and the pull wire I.

The power line of the tip probe of the tracking and positioning catheter sequentially penetrates through the inner side of the frame body, the inner side of the tube body and the inner side of the outer handle body and penetrates out of a through hole formed in the side face of the outer handle body to be connected with a main machine of the magnetic field generator; medical personnel accessible is trailed the sharp-end probe of location pipe and is fixed a position the binding clip of probing into patient internal, effectively improves the rate of accuracy of sample, reduces the degree of difficulty of sample.

The sliding ring is provided with a through hole which is sleeved on the outer side of the outer handle body in a sliding mode, the sliding groove penetrates through the side face of the outer handle body, the sliding block is of a square block structure, the upper clamping piece is of an L-shaped structure, the lower clamping piece is of a J-shaped structure, opposite end faces of the upper clamping piece and the lower clamping piece are provided with inclined plane structures which are mutually matched, and the other end of the compression spring is in pin joint connection with the inner side face of the outer handle body; when medical personnel slip sliding ring tighten up act as go-between one, act as go-between two make the binding clip carry out the centre gripping sample, go up joint spare joint connection joint down that can slide downwards, lower joint spare carries out stable spacing to last joint spare under compression spring's elastic support to convenient completion binding clip's fixing, it is simple and convenient more quick to compare the fixed method operation that uses helicitic texture.

The bottom end of the outer handle body is fixedly connected with the outer side face of a supporting ring, the supporting ring is of an annular structure, the sliding rod is a slender rod body, the sliding rod is rotatably connected with one end of a lower clamping piece through a pin shaft, and the middle end of the lower clamping piece is rotatably connected with a connecting shaft fixedly arranged in the outer handle body; when the forceps head needs to be opened, medical staff can directly push the push handle, so that the slide rod drives the lower clamping piece to rotate by taking the connecting shaft as a rotating shaft, and then the lower clamping piece is separated from the upper clamping piece, and the first forceps teeth and the second forceps teeth are rapidly opened under the support of the reed.

The utility model has the advantages that: the reed plays a role of elastic support, so that the first clamp tooth and the second clamp tooth are quickly opened after the pulling force of the second pull wire and the first pull wire is lost; the lower limiting column and the upper limiting column can limit the probe at the tip of the tracking and positioning catheter, so that the positioning accuracy is ensured, and the upper limiting column can also play a role in supporting the pull wire II and the pull wire I; medical personnel can position the forceps head which is inserted into the body of the patient through the probe at the tip of the tracking and positioning catheter, so that the sampling accuracy is effectively improved, and the sampling difficulty is reduced; when medical personnel slide the sliding ring to tighten the first pull wire and the second pull wire to enable the binding clip to clamp and sample, the upper clamping piece can slide downwards to be clamped and connected with the lower clamping piece, and the lower clamping piece stably limits the upper clamping piece under the elastic support of the compression spring, so that the fixation of the binding clip is conveniently completed, and compared with a fixation method using a threaded structure, the operation is simpler, more convenient and faster; when the forceps head needs to be opened, medical staff can directly push the push handle, so that the slide rod drives the lower clamping piece to rotate by taking the connecting shaft as a rotating shaft, and then the lower clamping piece is separated from the upper clamping piece, and the first forceps teeth and the second forceps teeth are rapidly opened under the support of the reed.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

Fig. 1 is a schematic sectional view of the present invention;

fig. 2 is a schematic sectional structure diagram of the present invention;

FIG. 3 is a schematic structural view of the present invention;

in the figure: 1. a handle; 101. a ring; 102. a push handle; 103. a slide bar; 104. a lower clamping piece; 105. a connecting shaft; 106. a compression spring; 107. an outer handle body; 108. an upper clamping piece; 109. a slider; 110. a chute; 111. a slip ring; 112. a connecting ring; 113. pulling a first wire; 114. a second stay wire; 2. a pipe body; 3. a support; 301. a frame body; 302. a lower restraint post; 303. an upper limiting column; 4. a binding clip; 401. a first clamp tooth; 402. a second clamp tooth; 403. a fixed shaft; 404. a reed; 5. and tracking and positioning the catheter tip probe.

Detailed Description

Referring to fig. 1-3, the present invention provides the following technical solutions: the electromagnetic navigation fixable biopsy forceps comprise a handle part 1, a tube body 2, a support 3, a forceps head 4 and a tracking and positioning catheter tip probe 5, wherein the handle part 1 comprises a supporting ring 101, a push handle 102, a sliding rod 103, a lower clamping piece 104, a connecting shaft 105, a compression spring 106, an outer handle body 107, an upper clamping piece 108, a sliding block 109, a sliding groove 110, a sliding ring 111, a connecting ring 112, a first pull wire 113 and a second pull wire 114, a through groove for slidably mounting the sliding rod 103 is formed in the supporting ring 101, one end of the sliding rod 103 is fixedly connected with the push handle 102, the other end of the sliding rod 103 is rotatably connected with one end of the lower clamping piece 104, the other end of the lower clamping piece 104 is adapted to be clamped and fixedly connected with the upper clamping piece 108 arranged at one end of the sliding block 109 and is in pin connection with one end of the compression spring 106, the sliding block 109 is slidably arranged on the inner side of the sliding groove 110 formed in the outer handle body 107 and is fixedly connected with the inner side surface of the sliding ring 111, the other end of the slider 109 is fixedly connected with a connecting ring 112, the connecting ring 112 is fastened and connected with one end of a stay wire I113 and one end of a stay wire II 114, the top end of the outer handle body 107 is fixedly connected with one end of a tube body 2, the other end of the tube body 2 is fixedly connected with one end of a support 3, the support 3 comprises a support body 301, a lower limiting column 302 and an upper limiting column 303, the lower limiting column 302 and the upper limiting column 303 are fixedly installed inside the support body 301, a tracking and positioning catheter tip probe 5 is fixedly installed inside the support body 301 between the lower limiting column 302 and the upper limiting column 303, a binding clip 4 is rotatably installed at the top end of the support body 301, the binding clip 4 comprises a first jaw tooth 401, a second jaw tooth 402, a fixing shaft 403 and a spring plate 404, a through hole for rotatably connecting and fixedly installing the fixing shaft 403 at the top end of the support body 301 is formed in the middle ends of the first jaw tooth 401 and the second jaw tooth 402, and the first jaw tooth 401, A spring plate 404 is fixedly arranged at the lower end of the opposite side surface of the second jaw tooth 402.

The first clamp tooth 401 and the second clamp tooth 402 are of a Z-shaped structure, the bottom ends of the first clamp tooth 401 and the second clamp tooth 402 are respectively provided with a through hole which is fastened and connected with one end of the second pull wire 114 and one end of the first pull wire 113, and the spring piece 404 is of an elastic arc-shaped plate structure; the spring plate 404 plays a role of elastic support, so that the first pincer teeth 401 and the second pincer teeth 402 can be opened quickly after the pulling force of the second pulling wire 114 and the first pulling wire 113 is lost.

The upper limiting column 303 and the lower limiting column 302 are two in number and are both cylindrical structures, the bottom side of the upper limiting column 303 is tightly attached to the top surface of the tracking and positioning catheter tip probe 5, the top side of the lower limiting column 302 is tightly attached to the bottom surface of the tracking and positioning catheter tip probe 5, the frame body 301 is a circular tube-shaped structure, the upper end of the frame body is provided with a through groove for rotatably mounting a first pincer tooth 401 and a second pincer tooth 402, and the pull wire II 114 and the pull wire I113 are connected with the lower limiting column 302 and the upper limiting column 303 in a sliding mode; the lower limiting column 302 and the upper limiting column 303 can limit the tracking and positioning catheter tip probe 5, so that the positioning accuracy is ensured, and the upper limiting column 303 can also support the second pull wire 114 and the first pull wire 113.

The power line of the tip probe 5 of the tracking and positioning catheter sequentially passes through the inner side of the frame body 301, the inner side of the tube body 2 and the inner side of the outer handle body 107 and penetrates out of a through hole formed in the side surface of the outer handle body 107 to be connected with a host machine of the magnetic field generator; medical personnel accessible is trailed location catheter tip probe 5 and is fixed a position tong head 4 of probing into patient's internal, effectively improves the rate of accuracy of sample, reduces the degree of difficulty of sample.

The slip ring 111 is provided with a through hole which is sleeved outside the outer handle body 107 in a sliding manner, the sliding groove 110 penetrates through the side face of the outer handle body 107, the sliding block 109 is of a square block structure, the upper clamping piece 108 is of an L-shaped structure, the lower clamping piece 104 is of a J-shaped structure, the opposite end faces of the upper clamping piece 108 and the lower clamping piece 104 are provided with inclined plane structures which are mutually engaged, and the other end of the compression spring 106 is connected with the inner side face of the outer handle body 107 in a pin joint manner; when the medical staff slides the slip ring 111 and tightens up the first stay wire 113, the second stay wire 114 to make the binding clip 4 clamp and sample, the upper clamping piece 108 can slide downwards to clamp and connect the lower clamping piece 104, and the lower clamping piece 104 stably limits the upper clamping piece 108 under the elastic support of the compression spring 106, so that the binding clip 4 can be conveniently fixed, and the operation is simpler, more convenient and faster compared with a fixing method using a threaded structure.

The bottom end of the outer handle body 107 is fixedly connected with the outer side surface of the supporting ring 101, the supporting ring 101 is of an annular structure, the sliding rod 103 is a slender rod body, the sliding rod 103 is rotatably connected with one end of the lower clamping piece 104 through a pin shaft, and the middle end of the lower clamping piece 104 is rotatably connected with a connecting shaft 105 fixedly installed in the outer handle body 107; when the forceps head 4 needs to be opened, the medical staff can directly push the push handle 102, so that the slide rod 103 drives the lower clamping piece 104 to rotate by taking the connecting shaft 105 as a rotating shaft, and further the lower clamping piece 104 is separated from the upper clamping piece 108, so that the first forceps teeth 401 and the second forceps teeth 402 are rapidly opened under the support of the spring pieces 404.

The utility model discloses a theory of operation and use flow: after the power line of the tip probe 5 of the tracking and positioning catheter is connected with the magnetic field generator host, medical staff can carry out biopsy sampling operation; after the forceps head 4 is inserted into the body of a patient, medical personnel can determine the position of the forceps head 4 by tracking and positioning the catheter tip probe 5; when sampling is needed, a medical worker can hold the supporting ring 101 with the palm, the sliding ring 111 slides backwards by the forefinger and the thumb to buckle the sliding ring 111, the sliding ring 111 drives the sliding block 109 to synchronously slide in the sliding groove 110 when moving, the connecting ring 112 and the upper clamping piece 108 are driven to move when moving, the connecting ring 112 pulls one end of the first pull wire 113 and one end of the second pull wire 114 when moving, the other end of the first pull wire 113 and the second pull wire 114 generate sliding friction with the lower limiting column 302 and the upper limiting column 303, and simultaneously the first jaw tooth 401 and the second jaw tooth 402 are driven to rotate by taking the fixed shaft 403 as a rotating shaft, so that the included angle between the first jaw tooth 401 and the second jaw tooth 402 is reduced to clamp and sample, at the moment, the reeds 404 arranged on the adjacent surfaces of the first jaw tooth 401 and the second jaw tooth 402 mutually extrude the lower clamping piece 104, the upper clamping piece 108 pushes the lower clamping piece 104 downwards, so that the compression spring 106 is elastically deformed by the extrusion of the lower clamping piece 104, after the upper clamping piece 108 continues to move downwards, the lower clamping piece 104 loses the extrusion force of the upper clamping piece 108, and the compression spring 106 releases elastic potential energy to drive the lower clamping piece 104 to reset rapidly, so that the lower clamping piece 104 is clamped with the upper clamping piece 108 stably, and the angle fixing of the binding clip head 4 is completed; when the forceps head 4 needs to be opened again, the medical staff can press the push handle 102, so that the slide rod 103 drives the lower clamping piece 104 to rotate by taking the connecting shaft 105 as a rotating shaft, and further the lower clamping piece 104 is separated from the upper clamping piece 108, at the moment, the first forceps tooth 401 and the second forceps tooth 402 are rapidly opened under the support of the reed 404, and the slide ring 111 is driven to reset through the first pull wire 113 and the second pull wire 114.

Claims (6)

1. But biopsy forceps are fixed in electromagnetic navigation, its characterized in that: the probe comprises a handle part, a pipe body, a support, a tong head and a tracking and positioning catheter tip probe, wherein the handle part comprises a supporting ring, a push handle, a sliding rod, a lower clamping part, a connecting shaft, a compression spring, an outer handle body, an upper clamping part, a sliding block, a sliding groove, a sliding ring, a connecting ring, a first pull wire and a second pull wire, a through groove for slidably mounting the sliding rod is formed in the supporting ring, one end of the sliding rod is fixedly connected with the push handle, the other end of the sliding rod is rotatably connected with one end of the lower clamping part, the other end of the lower clamping part is matched, clamped and fixedly connected with the upper clamping part arranged at one end of the sliding block, and is in pin joint with one end of the compression spring, the sliding block is slidably arranged at the inner side of the sliding groove formed in the outer handle body and is fixedly connected with the inner side surface of the sliding ring, the connecting ring is fixedly connected with one ends of the first pull wire and the second pull wire, and the top end of the outer handle body is fixedly connected with one end of the pipe body, the one end of the other end fixed connection support of body, the support includes support body, lower spacing post, last spacing post, lower spacing post and last spacing post fixed mounting are in the inside of support body, the inside fixed mounting of support body between lower spacing post, the last spacing post has the tip of tracking location pipe to probe, the binding clip is installed in the top rotation of support body, the binding clip includes first tong tooth, second tong tooth, fixed axle, reed, the through-hole of the fixed axle of rotation connection fixed mounting on the support body top is seted up to the middle-end of first tong tooth and second tong tooth, the lower extreme fixed mounting of first tong tooth, two opposite sides of tong tooth has the reed.

2. The electromagnetic navigation fixable biopsy forceps of claim 1, further comprising: the first clamp tooth and the second clamp tooth are of Z-shaped structures, through holes for fastening and connecting the second stay wire and one end of the first stay wire are formed in the bottom ends of the first clamp tooth and the second clamp tooth respectively, and the reed is of an elastic arc-shaped plate structure.

3. The electromagnetic navigation fixable biopsy forceps of claim 1, further comprising: the upper limiting column and the lower limiting column are both of a cylindrical structure, the bottom side of the upper limiting column is tightly attached to the top surface of the tip probe of the tracking and positioning catheter, the top side of the lower limiting column is tightly attached to the bottom surface of the tip probe of the tracking and positioning catheter, the frame body is of a circular tube type structure, the upper end of the frame body is provided with a through groove for rotatably mounting the first tong teeth and the second tong teeth, and the second stay wire and the first stay wire are connected with the lower limiting column and the upper limiting column in a sliding mode.

4. The electromagnetic navigation fixable biopsy forceps of claim 1, further comprising: and a power line of the tip probe of the tracking and positioning catheter sequentially penetrates through the inner side of the frame body, the inner side of the tube body and the inner side of the outer handle body and penetrates out of a through hole formed in the side surface of the outer handle body to be connected with a host of the magnetic field generator.

5. The electromagnetic navigation fixable biopsy forceps of claim 1, further comprising: the slip ring is provided with a through hole which is sleeved outside the outer handle body in a sliding mode, the sliding groove penetrates through the side face of the outer handle body, the sliding block is of a square block structure, the upper clamping piece is of an L-shaped structure, the lower clamping piece is of a J-shaped structure, the opposite end faces of the upper clamping piece and the lower clamping piece are provided with inclined plane structures which are matched with each other, and the other end of the compression spring is in pin joint with the inner side face of the outer handle body.

6. The electromagnetic navigation fixable biopsy forceps of claim 1, further comprising: the bottom end of the outer handle body is fixedly connected with the outer side face of the supporting ring, the supporting ring is of an annular structure, the sliding rod is a slender rod body, the sliding rod is connected with one end of the lower clamping piece in a rotating mode through a pin shaft, and the middle end of the lower clamping piece is connected with a connecting shaft fixedly installed inside the outer handle body in a rotating mode.

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