Microsurgical forceps with cutting function

Abstract

The present invention provides a microsurgical forceps with a cutting function, comprising: a needle tube, a forceps core and an outer shell, wherein the forceps core is set as a strip structure, the forceps core is set in the needle tube of the tubular structure, and is located in the needle tube for reciprocating movement; the needle tube is connected to the inside of the outer shell near the outer shell, one end of the forceps core is a clamping part, and the end of the forceps core away from the clamping part is connected to a driving part, and the driving part is set in the outer shell; the end of the forceps core close to the driving part is located in the outer shell for reciprocating movement. When working, the driving part is first used to enable the forceps core to move in the needle tube, so that the clamping part of the forceps core can be extended or retracted into the needle tube at the end of the needle tube, so as to achieve the purpose of clamping, puncturing or cutting tissues by the clamping part.

Description

Technical Field

[0001] The invention relates to the technical field of tweezers, in particular to a pair of microsurgical tweezers with a cutting function. Background Art

[0002] The luminal microsurgical instruments currently on the domestic market, such as micro forceps and micro scissors, all have a single function. During the operation, the tissue needs to be cut with an ophthalmic scalpel before entering the surgical area through the incision for surgery.

[0003] Since in complex surgical areas, a scalpel cannot cut tissue due to a specific angle, forceps cannot be used when puncturing or cutting tissue; therefore, there is a lack of surgical forceps that can facilitate cutting of tissue. Summary of the invention

[0004] The invention provides a pair of microsurgical forceps with a cutting function, which are used for conveniently cutting tissues during surgery.

[0005] The present invention provides a microsurgical forceps with cutting function, comprising: a needle tube, a forceps core and a shell.

[0006] The tweezer core is configured as a strip structure, and the tweezer core is sleeved in a needle tube of a tubular structure and reciprocates in the needle tube;

[0007] The needle tube is connected to the inside of the shell near the shell, one end of the tweezer core is a clamping part, and one end of the tweezer core away from the clamping part is connected to a driving part, and the driving part is arranged in the shell;

[0008] One end of the tweezer core close to the driving part is located in the shell and reciprocates.

[0009] Preferably, the clamping portion is provided with a plurality of tweezer heads, and each of the tweezer heads is provided with a needle tip at one end away from the tweezer core.

[0010] Preferably, the housing comprises a first shell, a second shell and a handle.

[0011] The first shell is used to movably connect the tweezer core. The first shell is set to a conical structure. A first movable cavity is arranged inside the conical structure. The large diameter end of the conical structure is connected to the second shell. A third movable cavity is arranged inside the second shell. The first movable cavity and the third movable cavity are connected to each other.

[0012] One end of the second shell away from the first shell is connected to the handle.

[0013] Preferably, a fourth active cavity is provided in the handle, and one end of the fourth active cavity close to the second shell is connected to the third active cavity;

[0014] The inner wall of the fourth active cavity is used for installing the driving part.

[0015] Preferably, the driving part comprises: a transmission block, a movable rod and a support sheet.

[0016] One end of the transmission block close to the second housing is connected to the tweezer core, and the other end of the transmission block is provided with a first sliding groove;

[0017] The first slide grooves are symmetrically provided with two groups, each of which is slidably provided with a movable rod, and both ends of the movable rod are respectively hinged with support pieces;

[0018] The other end of the support piece is hinged to the inner wall of the fourth movable cavity in the handle.

[0019] Preferably, the first active cavity and the third active cavity are connected via a second active cavity, and the diameter of the second active cavity is smaller than the diameters of the first active cavity and the third active cavity;

[0020] One end of the handle close to the second shell is configured as a flexible structure;

[0021] The second shell and the open end of the handle are detachably connected.

[0022] Preferably, an adjustment block is provided in the third movable cavity, one end of the adjustment block is connected to the tweezer core, the other end of the adjustment block is connected to a connecting rod, and the connecting rod is connected to the transmission block;

[0023] The other end of the connecting rod is located inside the fourth active chamber and reciprocates.

[0024] Preferably, a penetrating second slide groove is provided on the second shell, and a slide rod is connected to the adjustment block, and the slide rod penetrates the second slide groove and extends to the outer wall of the second shell;

[0025] The other end of the sliding rod is connected to a first handle of a C-shaped structure, and a second handle is disposed at one end of the first handle.

[0026] The working principle and beneficial effects of the present invention are as follows:

[0027] The present invention provides a microsurgical tweezers with a cutting function, comprising: a needle tube, a tweezers core and an outer shell, wherein the tweezers core is arranged in a strip-shaped structure, the tweezers core is sleeved in a needle tube of a tubular structure, and is located in the needle tube and reciprocates; the needle tube is connected to the inside of the outer shell near the outer shell, one end of the tweezers core is a clamping part, and the end of the tweezers core away from the clamping part is connected to a driving part, and the driving part is arranged in the outer shell; the end of the tweezers core close to the driving part is located in the outer shell and reciprocates.

[0028] When working, the driving part is first used to enable the forceps core to move in the needle tube, so that the clamping part of the forceps core can be extended out of or retracted into the needle tube at the end of the needle tube, thereby achieving the purpose of clamping, puncturing or cutting the tissue by the clamping part.

[0029] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0030] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 It is a structural schematic diagram of the present invention;

[0033] Figure 2 It is a schematic diagram of the connection structure of the tweezers core and the needle tube of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the regulating block of the present invention;

[0035] Figure 4 It is a schematic diagram of the needle tip structure of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the sliding rod of the present invention;

[0037] Figure 6 It is a schematic diagram of the lumen structure of the prior art;

[0038] Figure 7 This is a schematic diagram of the structure of the ocular surface surgery position;

[0039] Among them, 1-needle tip, 2-tweezers head, 3-tweezers core, 4-needle tube, 5-shell, 6-adjustment block, 7-transmission block, 8-handle, 9-support plate, 10-first active cavity, 11-second active cavity, 12-third active cavity, 13-first slide groove, 14-fourth active cavity, 15-second slide groove, 16-sliding rod, 17-connecting rod, 18-first handle, 19-second handle, 20-tube cavity, 21-active rod. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0041] according to Figure 1-7 As shown, the embodiment of the present invention provides a microsurgical forceps with cutting function, comprising: a needle tube 4, a forceps core 3 and a shell 5,

[0042] The tweezer core 3 is configured as a strip structure, and the tweezer core 3 is sleeved in a needle tube 4 of a tubular structure, and is located in the needle tube 4 to reciprocate;

[0043] The needle tube 4 is connected to the inside of the shell 5 near the shell 5, one end of the tweezer core 3 is a clamping part, and one end of the tweezer core 3 away from the clamping part is connected to a driving part, and the driving part is arranged in the shell 5;

[0044] One end of the tweezer core 3 close to the driving part is located in the housing 5 and reciprocates.

[0045] The clamping portion is provided with a plurality of tweezer heads 2 , and each tweezer head 2 is provided with a needle tip 1 at one end away from the tweezer core 3 .

[0046] When working, the driving part is first used to enable the forceps core to move in the needle tube, so that the clamping part of the forceps core can be extended out of or retracted into the needle tube at the end of the needle tube, thereby achieving the purpose of clamping, puncturing or cutting the tissue by the clamping part.

[0047] In ocular surface surgery, Figure 6 Schematic diagram of the lumen structure in the prior art; a straight lumen cannot turn in a small space. Figure 7 In the surgical visual field diagram shown, it is impossible to perform the operation from point A to point B, and it is also impossible to sew the lens loop to the surrounding tissue through point B. In addition, if puncture or cutting is to be performed at point B, the other hand needs to use a puncture knife (needle) to perform puncture or cutting, which makes the operation very inconvenient; the technical solution provided by the present invention can combine the puncture knife, the cutting knife and the forceps to complete the operation in a complex surgical area.

[0048] In one embodiment, the outer shell 5 includes a first shell, a second shell and a handle 8, the first shell is used to movably connect the tweezers core 3, the first shell is set to a conical structure, the interior of the conical structure is provided with a first active cavity 10, the large diameter end of the conical structure is connected to the second shell, the second shell is provided with a third active cavity 12, the first active cavity 10 and the third active cavity 12 are connected; the second shell is connected to the handle 8 at one end away from the first shell.

[0049] A fourth active cavity 14 is disposed in the handle 8 , and one end of the fourth active cavity 14 close to the second shell is connected to the third active cavity 12 ; the inner wall of the fourth active cavity 14 is used for installing the driving unit.

[0050] The driving part includes: a transmission block 7, a movable rod 21 and a support piece 9. The transmission block 7 is connected to the tweezers core 3 at one end close to the second shell body, and the other end of the transmission block 7 is provided with a first slide groove 13; the first slide groove 13 is symmetrically provided with two groups, and a movable rod 21 is slidably arranged in each of the first slide grooves 13, and the two ends of the movable rod 21 are respectively hinged with a support piece 9; the other end of the support piece 9 is hinged to the inner wall of the fourth movable cavity 14 in the handle 8.

[0051] The first active cavity 10 and the third active cavity 12 are connected via the second active cavity 11, and the diameter of the second active cavity 11 is smaller than the diameters of the first active cavity 10 and the third active cavity 12;

[0052] One end of the handle 8 close to the second shell is configured as a flexible structure; the second shell and the open end of the handle 8 are detachably connected.

[0053] An adjustment block 6 is provided in the third active cavity 12, one end of the adjustment block 6 is connected to the tweezer core 3, the other end of the adjustment block 6 is connected to a connecting rod 17, and the connecting rod 17 is connected to the transmission block 7; the other end of the connecting rod 17 is located inside the fourth active cavity 14 and reciprocates.

[0054] In this embodiment, in order to achieve the purpose of cutting and puncturing without the need for other additional instruments during the use of tweezers, a needle tip is provided on the tweezer head of the tweezer core, and the tweezer core is movably disposed in the needle tube, so that when used as tweezers, the tweezer head is in a state of being retracted into the needle tube; when used for puncture or cutting, the needle tip and the tweezer head are exposed, and the purpose of puncturing tissue and cutting surgical area tissue is achieved.

[0055] like Figure 1-4As shown, when working, the adjusting block 6 is moved to the left side so that the adjusting block 6 is adjusted to the left side of the third active cavity shown, and the tweezers core 3 and the tweezers head 2 fixedly connected to the adjusting block 6 are also moved to the left at the same time, so that the tweezers head 2 has a certain operating space with the needle tip; because the handle is made of flexible material, the handle 8 is pinched, the handle 8 drives the support piece 9, the support piece 9 drives the transmission block 7, and the needle tube 4 fixedly connected to the transmission block 7 moves to the left, and the inner diameter of the left port of the needle tube 4 tightens and merges the two tweezers heads of the tweezers head 2, thereby realizing the clamping function of the tweezers.

[0056] Move the adjustment block 6 to the right so that the adjustment block 6 is adjusted to the right side of the third active cavity shown, and the tweezers core 3 and the tweezers head 2 fixedly connected to the adjustment block 6 are also moved to the right at the same time, so that the tweezers head 2 shrinks into the needle tube, exposing the needle tip 1, and the needle tip can perform puncture or cutting.

[0057] The present invention can achieve the purpose of puncturing with a needle tip, clamping with tweezers, or shearing by replacing the tweezers head with a scissors head without switching surgical instruments, meeting the application requirements of complex surgeries and complex scenarios.

[0058] By adjusting the adjustment block left and right to achieve gear adjustment, the clamping force of the tweezers head 2 can be increased or reduced to prevent tissue or other clamped medical devices such as artificial lens loops from being injured.

[0059] The needle tube is configured as a side-bent structure, and can also be configured as a straight structure to meet the needs of complex surgical scenarios; at the same time, the driving part is operated by a handle to achieve the purpose of integrated handle transmission operation.

[0060] according to Figure 5 As shown, in one embodiment, a second sliding groove 15 is provided on the second shell body, and a sliding rod 16 is connected to the adjusting block 6. The sliding rod 16 passes through the second sliding groove 15 and extends to the outer wall of the second shell body; the other end of the sliding rod 16 is connected to a first handle 18 of a C-shaped structure, and one end of the first handle 18 is provided with a second handle 19

[0061] During operation, the fingers are held on the first handle so that the second handle can be used to restrict the hand when the first handle is moved back and forth, thereby reducing the possibility of the handle slipping off; further, the first handle can reciprocate in the first slide groove with the slide rod, and further the connecting rod can reciprocate in the third movable cavity with the adjustment block, thereby achieving the purpose of storing the tweezers head and the needle tip in the needle tube or extending them out of the needle tube; thereby achieving the purpose of using tweezers for surgical operations in a more flexible and controllable manner.

[0062] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A microsurgical forceps with cutting function, characterized in that: include: The needle tube (4), the forceps core (3) and the housing (5), The tweezer core (3) is configured as a strip structure, and the tweezer core (3) is sleeved in a needle tube (4) of a tubular structure, and is located in the needle tube (4) to reciprocate; The needle tube (4) is connected to the inside of the shell (5) near the shell (5), one end of the tweezer core (3) is a clamping part, and the end of the tweezer core (3) away from the clamping part is connected to a driving part, and the driving part is arranged in the shell (5); One end of the tweezer core (3) close to the driving part is located in the housing (5) and reciprocates; The housing (5) comprises a first shell, a second shell and a handle (8); the first shell is used to movably connect to the tweezer core (3); the first shell is configured as a conical structure, a first movable cavity (10) is provided inside the conical structure, a large diameter end of the conical structure is connected to the second shell, a third movable cavity (12) is provided inside the second shell, and the first movable cavity (10) and the third movable cavity (12) are connected; and an end of the second shell away from the first shell is connected to the handle (8); The driving part comprises: a transmission block (7), a movable rod (21) and a support piece (9); one end of the transmission block (7) close to the second shell is connected to the tweezer core (3); the other end of the transmission block (7) is provided with a first slide groove (13); two groups of the first slide grooves (13) are symmetrically provided, and a movable rod (21) is slidably arranged in each of the first slide grooves (13); the two ends of the movable rod (21) are respectively hinged to the support piece (9); the other end of the support piece (9) is hinged to the inner wall of the fourth movable cavity (14) in the handle (8); The first active cavity (10) and the third active cavity (12) are connected via a second active cavity (11), and the diameter of the second active cavity (11) is smaller than the diameters of the first active cavity (10) and the third active cavity (12); one end of the handle (8) close to the second shell is configured as a flexible structure; the second shell and the open end of the handle (8) are detachably connected; An adjusting block (6) is provided in the third active cavity (12), one end of the adjusting block (6) is connected to the tweezer core (3), the other end of the adjusting block (6) is connected to a connecting rod (17), and the connecting rod (17) is connected to the transmission block (7); The other end of the connecting rod (17) is located inside the fourth movable chamber (14) and reciprocates.

2. A microsurgical forceps with cutting function as claimed in claim 1, characterized in that: The clamping portion is provided with a plurality of tweezer heads (2), and each tweezer head (2) is provided with a needle tip (1) at one end away from the tweezer core (3).

3. The microsurgical forceps with cutting function as claimed in claim 1, characterized in that: A fourth active cavity (14) is provided in the handle (8), and an end of the fourth active cavity (14) close to the second shell is connected to the third active cavity (12); The inner wall of the fourth active chamber (14) is used for installing a driving unit.

4. The microsurgical forceps with cutting function as claimed in claim 1, characterized in that: The second housing is provided with a penetrating second slide groove (15), the adjusting block (6) is connected with a slide rod (16), and the slide rod (16) penetrates the second slide groove (15) and extends to the outer wall of the second housing; The other end of the sliding rod (16) is connected to a first handle (18) of a C-shaped structure, and a second handle (19) is provided at one end of the first handle (18).

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