Tumor puncture extraction device

Abstract

The invention relates to the technical field of tumor puncture, and discloses a tumor puncture extraction device which comprises an extractor, the extractor comprises a shell assembly, a transfer assembly, a jacking assembly, a replacement mechanism and a negative pressure assembly, the transfer assembly is installed on the inner side of the shell assembly, the jacking assembly is installed on the inner side of the transfer assembly, and the replacement mechanism is installed on the inner side of the jacking assembly. The replacement mechanism is installed on the inner side of the shell assembly, and the negative pressure assembly is installed at the top end of the shell assembly. By arranging the transfer assembly, the jacking assembly and the replacement mechanism, the outer tube can be moved to enable the needle head to move to other positions of a tumor to perform extraction again, local targeted collection in the tumor is achieved, multiple times of puncture are not needed, the pain of a patient is reduced, separate storage can be achieved, the replacement mechanism is convenient to replace, operation is easy, and time and labor are saved; the regional diversity of extracted substances after puncture is improved, subsequent pathological examination or biopsy, culture and other operations are facilitated, and the puncture collection effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tumor puncture, in particular to a tumor puncture extraction device. Background Art

[0002] Traditional tumor puncture and extraction devices require anesthesia puncture at the puncture point with an injection needle first, and then puncture the same part with a puncture needle to extract the tumor sample.

[0003] This method of puncture extraction of tumors has some limitations. Due to the limited sample size, it may not fully represent the entire lesion area, which has a certain impact on subsequent pathological examination and analysis or biopsy or culture operations. It is necessary to extract samples from multiple areas, and repeated punctures are more painful for patients. Although it is possible to adjust the depth of the puncture needle during a single puncture, it is not convenient to save samples from different locations (areas).

[0004] In order to solve the above problems, this application proposes a tumor puncture and extraction device. Summary of the invention

[0005] The purpose of the present invention is to provide a tumor puncture and extraction device to solve the problem that the prior art proposed in the above background technology needs to extract samples from multiple regional positions, and repeated punctures are more painful for patients. Although the depth of the puncture needle can be adjusted during a single puncture, it is inconvenient to save samples from different positions (regions).

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A tumor puncture extraction device comprises an extractor, wherein the extractor comprises a shell component, a transfer component, an insertion component, a replacement mechanism and a negative pressure component, wherein the shell component is installed with the transfer component inside, the insertion component is installed with the insertion component inside, the replacement mechanism is installed with the shell component inside, and the negative pressure component is installed with the top of the shell component;

[0008] The outer shell assembly includes an outer tube, a connecting shell, a needle and a side cover. The bottom end of the outer tube is fixedly connected to the connecting shell, the inner side of the connecting shell is fixedly connected to the needle, and the front end surface of the outer tube is provided with a replacement groove, and the inner side wall of the replacement groove is rotatably connected to the side cover via a rotating shaft.

[0009] Furthermore, the transfer assembly includes a spring A, a transfer tube, a sliding tube, a one-way valve, a retaining ring and a lever, the spring A is fixedly connected to the inner side of the bottom end of the outer tube, the top of the spring A is fixedly connected to the transfer tube, the sliding tube is fixedly connected to the inner side of the bottom end of the transfer tube, the one-way valve is fixedly connected to the inner side of the sliding tube, the retaining ring is fixedly connected to the inner side of the outer tube, a shift groove is provided at the left end of the outer tube, the left end of the transfer tube is fixedly connected to the shift rod, and the outer side of the shift rod is slidably connected to the shift groove.

[0010] Furthermore, the jacking assembly includes a jacking tube, a bracket A, a sliding rod A, a slider A and a spring B. A through hole is opened on the inner side of the transfer tube, the jacking tube is fixedly connected to the top of the inner wall of the through hole, the bracket A is fixedly connected to the inner wall of the through hole, the sliding rod A is fixedly connected to the top of the bracket A, the slider A is slidably connected to the outer side of the sliding rod A, and the spring B is fixedly connected between the bottom end of the slider A and the bracket A.

[0011] Furthermore, a closed hole is opened on the inner side of the top tube, a connecting hole is opened on the inner side of the top tube, the bottom end of the inner wall of the closed hole is connected to the connecting hole, the outer side of the slider A is slidably connected to the closed hole, and the slide rod A is arranged in a "T" shape.

[0012] Furthermore, the replacement mechanism includes a replacement bin, a diaphragm, a bracket B, a sliding rod B, a slider B, a spring C, a push block, a connecting rod and a push sleeve, the inner side wall of the replacement groove is slidably connected to the replacement bin, an insertion hole is opened on the inner side of the top end of the replacement bin, the diaphragm is fixedly connected to the inner side wall of the insertion hole, a blocking hole is opened at the bottom end of the replacement bin, the inner side of the replacement bin is fixedly connected to the bracket B, two sliding rods B are fixedly connected to the bottom end of the bracket B, the slider B is slidably connected to the outer side of the sliding rod B, the spring C is fixedly connected between the top end of the slider B and the bracket B, two push blocks are installed at the bottom end of the slider B, the connecting rod is fixedly connected between the two push blocks, the push block is arranged in a circular ring shape, the bottom end of the slider B is fixedly connected to the push sleeve, and the push block is arranged in a circumferential position of the push sleeve.

[0013] Furthermore, the negative pressure assembly includes a mounting seat, a negative pressure tube, a cannula, a piston and a piston rod, the mounting seat is fixedly connected to the top of the outer tube, the negative pressure tube is fixedly connected to the top of the mounting seat, the cannula is fixedly connected to the bottom of the negative pressure tube, the piston is slidably connected to the inner side of the negative pressure tube, and the piston rod is fixedly connected to the top of the piston.

[0014] Furthermore, the extractor also includes a limiting plate, and the limiting plate is fixedly connected to the inner side of the outer tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention uses the transfer component, the push-in component and the replacement mechanism to move the outer tube so that the needle can be moved to other positions of the tumor to perform the extraction operation again, thereby realizing local targeted collection within the tumor, eliminating the need for multiple punctures, reducing the patient's pain, and the materials can be stored separately, making it convenient to replace the replacement mechanism. The operation is simple, time-saving and labor-saving, and the regional diversity of the extracted material after puncture is increased, which is convenient for subsequent pathological examinations or biopsy, culture and other operations, and improves the puncture collection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a tumor puncture and extraction device of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of a housing component of a tumor puncture and extraction device of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of a transfer component of a tumor puncture extraction device of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of a push-in component of a tumor puncture and extraction device of the present invention;

[0021] Figure 5 A schematic diagram of the replacement mechanism structure of a tumor puncture and extraction device of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of a negative pressure component of a tumor puncture extraction device of the present invention;

[0023] Figure 7 A three-dimensional diagram of the installation structure of a side cover of a tumor puncture extraction device according to the present invention;

[0024] In the figure:

[0025] 1. Extractor;

[0026] 11. housing assembly; 111. outer tube; 112. connecting shell; 113. needle; 114. side cover;

[0027] 12. Transfer assembly; 121. Spring A; 122. Transfer pipe; 123. Sliding pipe; 124. Check valve; 125. Retaining ring; 126. Push rod;

[0028] 13. Push-in assembly; 131. Push-in pipe; 132. Bracket A; 133. Sliding rod A; 134. Sliding block A; 135. Spring B;

[0029] 14. Replacement mechanism; 141. Replacement chamber; 142. Diaphragm; 143. Bracket B; 144. Sliding rod B; 145. Sliding block B; 146. Spring C; 147. Push block; 148. Connecting rod; 149. Push sleeve;

[0030] 15. Negative pressure assembly; 151. Mounting seat; 152. Negative pressure tube; 153. Cannula; 154. Piston; 155. Piston rod;

[0031] 16. Limit plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] The standard parts used in this application can all be purchased from the market, and special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the existing technology, and the components used for circuit connection are all conventional models in the existing technology.

[0034] At the same time, in order to clearly express the connection relationship and working principle between the components and highlight the key points, the drawings in the specification are organized and drawn in the form of simple diagrams. One simple diagram can correspond to a variety of materials and actual external structural shapes.

[0035] See also Figure 1-Figure 7 The present invention provides a technical solution: a tumor puncture extraction device, comprising an extractor 1, the extractor 1 comprising a shell component 11, a transfer component 12, a push-in component 13, a replacement mechanism 14 and a negative pressure component 15, the shell component 11 is provided with a transfer component 12, the transfer component 12 is provided with a push-in component 13, the shell component 11 is provided with a replacement mechanism 14, and the top of the shell component 11 is provided with a negative pressure component 15;

[0036] The housing assembly 11 comprises an outer tube 111, a connecting shell 112, a needle 113 and a side cover 114. The bottom end of the outer tube 111 is fixedly connected to the connecting shell 112, the inner side of the connecting shell 112 is fixedly connected to the needle 113, the front end surface of the outer tube 111 is provided with a replacement groove, the inner side wall of the replacement groove is rotatably connected to the side cover 114 through a rotating shaft, the outer tube 111 is held by hand, and the puncture operation is performed through the needle 113. After reaching the designated position, the piston rod 155 is pulled to drive the piston 154 to move upward, and the piston 154 moves upward in the negative pressure tube 152. During the sliding movement, negative pressure is generated under the piston 154, which generates negative pressure inside the replacement chamber 141 through the insertion tube 153. Because the push tube 131 lifts the push block 147, the push sleeve 149 presses the slider A134 down and separates it from the closed hole, thereby generating negative pressure in the transfer tube 122. The negative pressure in the transfer tube 122 passes through the sliding tube 123, and the sliding tube 123 drives the needle 113 to absorb part of the substance in the tumor. The substance enters the sliding tube 123 through the needle 113, and then enters the replacement chamber 141 through the transfer tube 122 to complete the collection.

[0037] It should be understood that the rotational connection between the side cover 114 and the outer tube 111 can be achieved through a torsion shaft, so that the side cover 114 can be easily reset and fit with the outer tube 111 after it is opened.

[0038] The transfer assembly 12 includes a spring A121, a transfer tube 122, a slide tube 123, a one-way valve 124, a retaining ring 125 and a lever 126. The spring A121 is fixedly connected to the inner side of the bottom end of the outer tube 111, the transfer tube 122 is fixedly connected to the top of the spring A121, the slide tube 123 is fixedly connected to the inner side of the bottom end of the transfer tube 122, the one-way valve 124 is fixedly connected to the inner side of the slide tube 123, the retaining ring 125 is fixedly connected to the inner side of the outer tube 111, a shifting groove is provided at the left end of the outer tube 111, and a shifting rod 126 is fixedly connected to the left end of the transfer tube 122. The outer side of the shifting rod 126 is slidably connected to the shifting groove. When replacing the mechanism 14, first open the side cover 114, push the lever 126 downward in the slot, the lever 126 drives the transfer tube 122 to move downward, drives the top tube 131 to separate from the replacement bin 141, and continues other operations, then replace the new replacement mechanism 14, put the new replacement bin 141 in the replacement slot, the bottom end of the limit plate 16 fits tightly with the top of the replacement bin 141, then release the lever 126 to allow the spring A121 to drive the transfer tube 122 to move upward, the transfer tube 122 drives the sliding tube 123 to slide on the needle 113, and the transfer tube 122 fits upward with the retaining ring 125.

[0039] The jacking assembly 13 includes a jacking tube 131, a bracket A132, a sliding rod A133, a slider A134 and a spring B135. A through hole is provided on the inner side of the transfer tube 122. The top of the inner wall of the through hole is fixedly connected to the jacking tube 131. The inner wall of the through hole is fixedly connected to the bracket A132. The top of the bracket A132 is fixedly connected to the sliding rod A133. The outer side of the sliding rod A133 is slidably connected to the slider A134. A spring B135 is fixedly connected between the bottom end of the slider A134 and the bracket A132. A closed hole is provided on the inner side of the jacking tube 131. A connecting hole is provided on the inner side of the jacking tube 131. The bottom end of the inner wall of the closed hole is communicated with the connecting hole. The outer side of the slider A134 is slidably connected to the closed hole. The sliding rod A133 is arranged in a "T" shape. Replace the new replacement mechanism 14, put the new replacement bin 141 in the replacement slot, and replace the bin 14. 1, and then the top of the replacement bin 141 slides into the replacement groove along the limit plate 16, and the bottom of the limit plate 16 is tightly fitted with the top of the replacement bin 141, and then the lever 126 is released to make the spring A121 drive the transfer tube 122 to move upward, and the transfer tube 122 drives the slide tube 123 to slide on the needle 113, and the transfer tube 122 upward fits with the retaining ring 125, at this time, the top tube 131 fits with the push block 147, and the top tube 131 pushes the push block 147 back into the replacement bin 141, and the top tube 131 enters the material blocking hole of the replacement bin 141, and the thrust of the spring A121 drives the top tube 131 to lift the push block 147, and the spring C146 drives the slider B145 to drive the push sleeve 149 to sleeve on the outer side of the slide rod A133, so that the push sleeve 149 pushes the slider A134 to move downward, thereby separating the slider A134 from the closed hole.

[0040] The replacement mechanism 14 includes a replacement bin 141, a diaphragm 142, a bracket B143, a slide bar B144, a slider B145, a spring C146, a push block 147, a connecting rod 148 and a push sleeve 149. The inner side wall of the replacement groove is slidably connected to the replacement bin 141, an insertion hole is provided on the inner side of the top end of the replacement bin 141, and the diaphragm 142 is fixedly connected to the inner side wall of the insertion hole. A blocking hole is provided at the bottom end of the replacement bin 141, and the inner side of the replacement bin 141 is fixedly connected to the bracket B143. The bottom end of the bracket B143 is fixedly connected to two slide bars B144, and the outer side of the slide bar B144 is slidably connected to the slider B145. A spring C146 is fixedly connected between the top end of the slider B145 and the bracket B143. Two push blocks 147 are installed at the bottom end of the slider B145. A connecting rod 148 is fixedly connected between the push blocks 147, and the push block 147 is arranged in a circular ring shape. A push sleeve 149 is fixedly connected to the bottom end of the slider B145, and the push block 147 is arranged in the circumferential position of the push sleeve 149. When replacing the replacement mechanism 14, first open the side cover 114, and push the lever 126 downward in the push groove. The lever 126 drives the transfer tube 122 to move downward, and drives the top tube 131 to separate from the replacement bin 141. The spring B135 on the bracket A132 pushes the slider A134 to slide on the bracket A132, so that the slider A134 closes the closed hole, and then the spring C146 on the bracket B143 pushes the slider B145 downward to drive the push block 147 to insert into the blocking hole, and then the negative pressure tube 152 is rotated on the mounting seat 151 to move the cannula 153 is separated from the diaphragm 142, and then the top of the replacement bin 141 is pushed forward to separate the top of the replacement bin 141 from the bottom of the limit plate 16, and then the replacement bin 141 is taken out, and a new replacement mechanism 14 is replaced, and the new replacement bin 141 is placed in the replacement slot, the bottom of the replacement bin 141 is fitted with the retaining ring 125, and then the top of the replacement bin 141 slides into the replacement slot along the limit plate 16, and the bottom of the limit plate 16 is tightly fitted with the top of the replacement bin 141, and then the lever 126 is released to allow the spring A121 to drive the transfer tube 122 to move upward, and the transfer tube 122 drives the sliding tube 123 to slide on the needle 113, and the transfer tube 122 moves upward and fits with the retaining ring 125, at this time, the top tube 131 fits with the push block 147, and the top tube 131 pushes the push block 147 Put it into the replacement bin 141, and the push tube 131 enters the material blocking hole of the replacement bin 141. The thrust of the spring A121 drives the push tube 131 to lift the push block 147. The spring C146 drives the slider B145 to drive the push sleeve 149 to sleeve on the outside of the slide rod A133, so that the push sleeve 149 pushes the slider A134 to move downward, thereby separating the slider A134 from the closed hole. The connecting rod 148 separates the two push blocks 147, and the material extracted by the needle 113 can be transported to the inner circle of the push block 147 through the push tube 131. Then, the interval allows the extracted material to enter the replacement bin 141. After the replacement bin 141 is installed, the side cover 114 is closed, and then the piston 154 in the negative pressure tube 152 is reset downward, and the negative pressure tube 152 is screwed into the mounting seat 151.The cannula 153 punctures the septum 142 and enters the replacement chamber 141 to communicate with the replacement chamber 141.

[0041] The negative pressure assembly 15 includes a mounting seat 151, a negative pressure tube 152, a cannula 153, a piston 154 and a piston rod 155. The top of the outer tube 111 is fixedly connected to the mounting seat 151, the top of the mounting seat 151 is fixedly connected to the negative pressure tube 152, the bottom of the negative pressure tube 152 is fixedly connected to the cannula 153, the inner side of the negative pressure tube 152 is slidably connected to the piston 154, and the top of the piston 154 is fixedly connected to the piston rod 155. The outer tube 111 is held and the puncture operation is performed through the needle 113. After reaching the specified position, the piston rod 155 is pulled to drive the piston 154 to move upward, and the piston 15 4 slides upward in the negative pressure tube 152, and negative pressure is generated below the piston 154, which generates negative pressure inside the replacement chamber 141 through the cannula 153, so that the needle 113 extracts the substances in the tumor. Before replacing the replacement mechanism 14, it is necessary to rotate the negative pressure tube 152 on the mounting seat 151 to move the cannula 153 and separate the diaphragm 142. After replacing the new replacement mechanism 14, the piston 154 in the negative pressure tube 152 should be reset downward, and then the negative pressure tube 152 should be screwed into the mounting seat 151, so that the cannula 153 punctures the diaphragm 142 and enters the replacement chamber 141 to communicate with the replacement chamber 141.

[0042] The extractor 1 also includes a limit plate 16, and the inner side of the outer tube 111 is fixedly connected to the limit plate 16. The top of the replacement bin 141 is pushed forward to separate the top of the replacement bin 141 from the bottom of the limit plate 16. Then the replacement bin 141 is taken out, and a new replacement mechanism 14 is replaced. The new replacement bin 141 is placed in the replacement groove, and the bottom of the replacement bin 141 is fitted with the retaining ring 125. Then the top of the replacement bin 141 slides into the replacement groove along the limit plate 16. The bottom of the limit plate 16 is tightly fitted with the top of the replacement bin 141, which is convenient for fixing and limiting the position of the replacement bin 141. The friction between the replacement bin 141 and the bottom of the limit plate 16 is relatively large.

[0043] It should be noted that the bottom end of the limiting plate 16 can be provided with a frosted surface.

[0044] Working principle:

[0045] When the device is in use, the outer tube 111 is held in the hand, and the puncture operation is performed through the needle 113. After reaching the designated position, the piston rod 155 is pulled to drive the piston 154 to move upward, and the piston 154 slides upward in the negative pressure tube 152. Negative pressure is generated under the piston 154, and negative pressure is generated inside the replacement chamber 141 through the insertion tube 153. Because the push block 147 is lifted by the push tube 131, the push sleeve 149 presses the slider A134 down and separates it from the closed hole, thereby generating negative pressure in the transfer tube 122. The negative pressure in the transfer tube 122 passes through the slide tube 123, and the slide tube 123 drives the needle 113 to absorb part of the material in the tumor. The material enters the slide tube 123 through the needle 113, and then enters the replacement chamber 141 through the transfer tube 122 to complete the collection. The one-way valve 124 prevents the material from flowing back.

[0046] When it is necessary to adjust the position of the needle 113 to sample other locations of the tumor, the replacement mechanism 14 needs to be replaced. When replacing the replacement mechanism 14, first open the side cover 114, push the lever 126 downward in the push slot, the lever 126 drives the transfer tube 122 to move downward, drives the top tube 131 to separate from the replacement bin 141, and the spring B135 on the bracket A132 pushes the slider A134 to slide on the bracket A132, so that the slider A134 closes the closed hole, and then the spring C146 on the bracket B143 pushes the slider B145 downward to drive the push block 147 to insert into the blocking hole, and then the negative pressure tube 152 is rotated on the mounting seat 151 to move the cannula 153 to separate from the diaphragm 142, and then the top of the replacement bin 141 is pushed forward to separate the top of the replacement bin 141 from the bottom of the limit plate 16, and then the replacement bin 141 is taken out, and a new replacement mechanism 14 is replaced, and the new replacement bin 141 is placed in the replacement slot;

[0047] The bottom end of the replacement bin 141 fits with the retaining ring 125, and then the top of the replacement bin 141 slides into the replacement groove along the limit plate 16, and the bottom end of the limit plate 16 fits tightly with the top of the replacement bin 141, and then the lever 126 is released to allow the spring A121 to drive the transfer tube 122 to move upward, and the transfer tube 122 drives the slide tube 123 to slide on the needle 113, and the transfer tube 122 moves upward and fits with the retaining ring 125. At this time, the top tube 131 fits with the push block 147, and the top tube 131 pushes the push block 147 back into the replacement bin 141, and the top tube 131 moves in. The push force of spring A121 drives the push tube 131 to lift the push block 147, and the spring C146 drives the slider B145 to drive the push sleeve 149 to sleeve on the outer side of the slide rod A133, so that the push sleeve 149 pushes the slider A134 to move downward, thereby separating the slider A134 from the closed hole, and the connecting rod 148 separates the two push blocks 147, so that the material extracted by the needle 113 can be transported to the inner circle of the push block 147 through the push tube 131, and then the space allows the extracted material to enter the replacement chamber 141;

[0048] After installing the replacement chamber 141, close the side cover 114, and then after the piston 154 in the negative pressure tube 152 is reset downward, screw the negative pressure tube 152 into the mounting seat 151, so that the cannula 153 punctures the diaphragm 142 and enters the replacement chamber 141 to communicate with the replacement chamber 141, and then the outer tube 111 can be moved to move the needle 113 to other positions of the tumor for extraction again, thereby realizing local targeted collection within the tumor, eliminating the need for multiple punctures, reducing patient pain, and the tubes can be stored separately, making it convenient to replace the replacement mechanism 14, which is simple to operate, saves time and effort, improves the regional diversity of the extracted material after puncture, facilitates subsequent pathological examination or biopsy, culture and other operations, and improves the puncture collection effect.

Claims

1. A tumor puncture extraction device, characterized in that: The extractor (1) comprises a housing component (11), a transfer component (12), an insertion component (13), a replacement mechanism (14) and a negative pressure component (15); the housing component (11) is provided with the transfer component (12), the insertion component (13) is provided with the transfer component (12), the replacement mechanism (14) is provided with the housing component (11), and the negative pressure component (15) is provided at the top of the housing component (11); The housing assembly (11) comprises an outer tube (111), a connecting shell (112), a needle (113) and a side cover (114); the bottom end of the outer tube (111) is fixedly connected to the connecting shell (112); the inner side of the connecting shell (112) is fixedly connected to the needle (113); a replacement groove is provided on the front end surface of the outer tube (111); and the inner side wall of the replacement groove is rotatably connected to the side cover (114) via a rotating shaft.

2. A tumor puncture and extraction device according to claim 1, characterized in that: The transfer assembly (12) comprises a spring A (121), a transfer tube (122), a slide tube (123), a one-way valve (124), a retaining ring (125) and a lever (126); the spring A (121) is fixedly connected to the inner side of the bottom end of the outer tube (111); the top end of the spring A (121) is fixedly connected to the transfer tube (122); the slide tube (123) is fixedly connected to the inner side of the bottom end of the transfer tube (122); the one-way valve (124) is fixedly connected to the inner side of the slide tube (123); the retaining ring (125) is fixedly connected to the inner side of the outer tube (111); a shifting groove is provided at the left end of the outer tube (111); the shifting rod (126) is fixedly connected to the left end of the transfer tube (122); and the outer side of the shifting rod (126) is slidably connected to the shifting groove.

3. A tumor puncture and extraction device according to claim 2, characterized in that: The jacking assembly (13) comprises a jacking tube (131), a bracket A (132), a sliding rod A (133), a slider A (134) and a spring B (135); a through hole is provided on the inner side of the transfer tube (122); the jacking tube (131) is fixedly connected to the top of the inner wall of the through hole; the bracket A (132) is fixedly connected to the inner wall of the through hole; the sliding rod A (133) is fixedly connected to the top of the bracket A (132); the slider A (134) is slidably connected to the outer side of the sliding rod A (133); and the spring B (135) is fixedly connected between the bottom end of the slider A (134) and the bracket A (132).

4. A tumor puncture and extraction device according to claim 3, characterized in that: A closed hole is provided on the inner side of the top tube (131), a connecting hole is provided on the inner side of the top tube (131), the bottom end of the inner wall of the closed hole is communicated with the connecting hole, the outer side of the sliding block A (134) is slidably connected with the closed hole, and the sliding rod A (133) is arranged in a "T" shape.

5. A tumor puncture and extraction device according to claim 4, characterized in that: The replacement mechanism (14) comprises a replacement bin (141), a diaphragm (142), a bracket B (143), a sliding rod B (144), a slider B (145), a spring C (146), a push block (147), a connecting rod (148) and a push sleeve (149); the inner side wall of the replacement groove is slidably connected to the replacement bin (141); an insertion hole is provided on the inner side of the top end of the replacement bin (141); the diaphragm (142) is fixedly connected to the inner side wall of the insertion hole; a material blocking hole is provided on the bottom end of the replacement bin (141); the bracket B (143) is fixedly connected to the inner side of the replacement bin (141); the bottom of the bracket B (143) is provided with a stopper hole Two sliding rods B (144) are fixedly connected to the end, the sliding rod B (144) is slidably connected to the outer side of the sliding rod B (144), the spring C (146) is fixedly connected between the top of the sliding rod B (145) and the bracket B (143), two pushing blocks (147) are installed at the bottom end of the sliding block B (145), the connecting rod (148) is fixedly connected between the two pushing blocks (147), the pushing block (147) is arranged in a circular ring shape, the pushing sleeve (149) is fixedly connected to the bottom end of the sliding block B (145), and the pushing block (147) is arranged at a circumferential position of the pushing sleeve (149).

6. A tumor puncture and extraction device according to claim 5, characterized in that: The negative pressure assembly (15) comprises a mounting seat (151), a negative pressure tube (152), a cannula (153), a piston (154) and a piston rod (155); the top end of the outer tube (111) is fixedly connected to the mounting seat (151); the top end of the mounting seat (151) is fixedly connected to the negative pressure tube (152); the bottom end of the negative pressure tube (152) is fixedly connected to the cannula (153); the inner side of the negative pressure tube (152) is slidably connected to the piston (154); and the top end of the piston (154) is fixedly connected to the piston rod (155).

7. A tumor puncture and extraction device according to claim 5, characterized in that: The extractor (1) further comprises a limiting plate (16), and the limiting plate (16) is fixedly connected to the inner side of the outer tube (111).

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